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May 2, 2023 NHTSA CAMPAIGN NUMBER: 23V309000
High-Voltage Battery Software Error/FMVSS 305
A high-voltage battery monitoring system that does not alert the driver of a battery malfunction may increase the risk of a crash, injury, or fire.
NHTSA Campaign Number: 23V309
Manufacturer Mercedes-Benz USA, LLC
Components ELECTRICAL SYSTEM
Potential Number of Units Affected 3,823
Summary
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023 EQE 350, S580e, 2022-2023 EQS 450, EQS 580, 2022 AMG EQS 53, and EQS 450+ vehicles. The high-voltage battery monitoring system software may not alert the driver of a battery malfunction. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 305, “Electric-powered vehicles: Electrolyte Spillage and Electrical Shock Protection.”
Remedy
Dealers will update the battery management system software, free of charge. Owner notification letters were mailed August 18, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA’s number for this recall is 2023070013.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Check if your Mercedes-Benz has a Recall
July 28, 2023
2023070013
Update Battery Management System Software
This is to notify you of the Recall Campaign Launch to update the Battery Management System software on 3,679 Model Year (“MY”) 2022-2023 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, and 297 platform) vehicles. The recall campaign will be visible on the www.NHTSA.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “OPEN” on July 28, 2023.
Issue
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2022-2023 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, and 297 platform) vehicles, the monitoring function of the high-voltage battery might be impaired over time. In certain circumstances, a warning alerting the driver of a battery malfunction might not activate in the event of a fault. In such instances, the warning would not comply with a requirement of FMVSS 305 (Electric-powered vehicles).
What We’re Doing
MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will update the software for the Battery Management System on the affected vehicles.
Parts
The remedy is available and can be performed.
Given this notice, it is a violation of Federal law for a dealer to sell or lease any new vehicles in dealer inventory covered by this notification until the vehicle has been repaired. Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in NetStar VMI and Xentry Portal. Once the repair is complete the vehicle may be sold or leased.
Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired. As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s).
Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new vehicles covered by this notification until the vehicle has been repaired.
Update Battery Management System Software
- Always use the latest XENTRY Diagnosis software release with all available add-ons.
- Follow the operation steps exactly as described in XENTRY Diagnosis.
- Use a charger to ensure sufficient power supply to the vehicle’s on-board electrical battery system (greater than 12.5 V).
- If XENTRY Diagnosis is already connected to the vehicle, start with Work Procedure step 2.
If two or more software updates or SCN codings are performed during a single workshop visit, operation items 02-4762 and 02-5058 may be invoiced only on one of the workshop orders.
Work Procedure
- Connect XENTRY Diagnosis.
- Update battery management system control unit software.
To do this, select menu item “Quick test view → N82/2 battery management system (BMS) → Adaptations → Control unit update → Update of control unit software”.
Then follow the user guidance in XENTRY Diagnosis.
- Disconnect XENTRY Diagnosis.
September 19, 2023
2023070013
Update Battery Management System Software
This is to notify you of a Recall Campaign Update to update the Battery Management System software on 3,679+5 (added September 14, 2023) Model Year (“MY”) 2022-2023 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, and 297 platform) vehicles. The recall campaign will be visible on the www.NHTSA.gov website and may generate questions from customers. 3,679 VINs were flagged in VMI as “OPEN” on July 28, 2023. The additional VINs were flagged in VMI as “OPEN” on September 14, 2023.
Issue
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2022-2023 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, and 297 platform) vehicles, the monitoring function of the high-voltage battery might be impaired over time. In certain circumstances, a warning alerting the driver of a battery malfunction might not activate in the event of a fault. In such instances, the warning would not comply with a requirement of FMVSS 305 (Electric-powered vehicles).
What We’re Doing
MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will update the software for the Battery Management System on the affected vehicles.
Parts
The remedy is available and can be performed.
Given this notice, it is a violation of Federal law for a dealer to sell or lease any new vehicles in dealer inventory covered by this notification until the vehicle has been repaired. Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in NetStar VMI and Xentry Portal. Once the repair is complete, the vehicle may be sold or leased.
Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired. As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s).
Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new vehicles covered by this notification until the vehicle has been repaired.
Customer Notification Timeline
Interim customer letters were mailed on June 16, 2023.
Wave 1: Final customer letters were mailed on August 18, 2023.
Amendment: Final customer letters will be mailed on or before September 29, 2023.
Final customer letters will be mailed approximately 2-3 weeks after the launch of each wave.
Update Battery Management System Software
- Always use the latest XENTRY Diagnosis software release with all available add-ons.
- Follow the operation steps exactly as described in XENTRY Diagnosis.
- Use a charger to ensure sufficient power supply to the vehicle’s on-board electrical battery system (greater than 12.5 V).
- If XENTRY Diagnosis is already connected to the vehicle, start with Work Procedure step 2.
If two or more software updates or SCN codings are performed during a single workshop visit, operation items 02-4762 and 02-5058 may be invoiced only on one of the workshop orders.
Work Procedure
- Connect XENTRY Diagnosis.
- Update battery management system control unit software.
To do this, select menu item “Quick test view → N82/2 battery management system (BMS) → Adaptations → Control unit update → Update of control unit software”.
Then follow the user guidance in XENTRY Diagnosis.
- Disconnect XENTRY Diagnosis.
Chronology :
In May 2022, MBAG examined an abnormality identified during battery and software testing. Internal tests indicated a potential deviation from specifications. MBAG’s further investigation determined that in some vehicles, the Battery Management System (BMS) might experience a fault that could affect certain diagnostic functions.
MBAG initiated a review of whether the identified potential fault might have regulatory compliance implications in any of the jurisdictions in which the potentially affected vehicles were sold.
From December 2022 through March 2023, MBAG continued to investigate possible effects of the potential BMS diagnostic fault. This continued investigation identified a potential failure of a warning indicator to alert the driver of a BMS malfunction.
On April 21, 2023, MBAG determined that non-compliance with FMVSS 305 cannot be ruled out and decided to conduct a recall.
September 19, 2023:
On September 12, MBAG ran a new search to identify vehicle allocation for markets outside of the USA. It was noted that 5 vehicles previously located in foreign markets were now in the US market. As a result, the additional vehicles were added to recall 23V309.
MBAG is not aware of any warranty claims, field or service reports, or reports of property damage, death, or injury related to this defect.
8 Affected Products
Vehicles
MAKE | MODEL | YEAR |
MERCEDES-BENZ | AMG EQS53 | 2022 |
MERCEDES-BENZ | EQE 350 | 2023 |
MERCEDES-BENZ | EQS 450+ | 2022 |
MERCEDES-BENZ | EQS450 | 2022-2023 |
MERCEDES-BENZ | EQS580 | 2022-2023 |
MERCEDES-BENZ | S580E | 2023 |
10 Associated Documents
Noncompliance Notice 573 Report
RCLRPT-23V309-8362.PDF 219.762KB
Recall Acknowledgement
RCAK-23V309-6988.pdf 687.809KB
Manufacturer Notices(to Dealers,etc)
RCMN-23V309-7727.pdf 290.107KB
ISSUED Interim Owner Notification Letter(Part 577)
RIONL-23V309-4706.pdf 199.641KB
Manufacturer Notices(to Dealers,etc)
RCMN-23V309-4987.pdf 565.263KB
Remedy Instructions and TSB
RCRIT-23V309-7819.pdf 308.632KB
Recall 573 Report – July 28, 2023
RCLRPT-23V309-9473.PDF 219.932KB
ISSUED Owner Notification Letter(Part 577)
RCONL-23V309-4613.pdf 286.151KB
Manufacturer Notices(to Dealers,etc)
RCMN-23V309-3548.pdf 404.684KB
Recall 573 Report – September 19, 2023
RCLRPT-23V309-7646.PDF 220.092KB
Latest Recalls Documents
https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=23V309&docType=RCL
Mercedes-Benz Reprogramming
All information in regard to Mercedes-Benz J2534 compliant software is available free of charge and found under the MB Workshop Resources tab on the home page of www.startekinfo.com
J2534 complaint software for Mercedes-Benz vehicles is available for purchase from Mercedes-Benz USA.
In order to use the J2534 complaint software for Mercedes-Benz vehicles, the purchaser must furnish their own:
- Windows based PC or laptop*
- J2534 compliant interface box*1*
*Must be purchased from a third party company and are not available from Mercedes-Benz USA LLC.
*1* suggested listing of J2534 interface boxes is located within the J2534 Pass-Thru User’s Manual which is posted for view without cost under the MB Workshop Resources tab on the home page of www.startekinfo.com
Vehicle Coverage
J2534 complaint software for Mercedes-Benz vehicles has coverage for all required functions associated to reprogramming, initialization, and fault clearing of emission control modules (engine and transmission) fitted to vehicles 2004 Model Year and newer. Additionally all access and functionality required in regard the configuration via SCN Coding and/or CVN Coding is covered.
J2534 complaint software for Mercedes-Benz vehicles is delivered via DVD media which is delivered monthly for the license term of one year upon purchase.
- All control unit software (reprogramming calibrations) is contained within J2534 DVD media.
Terms and conditions
J2534 complaint software for Mercedes-Benz vehicles is purchased in 1-year license increments. During that license term the user will receive an initial software package, license key, SCN/CVN Coding information/access as well as monthly updates via DVD media.
- Additional updates of software after the 1st year can be purchased at additional cost, however are not required for the system to continue functioning.
For pricing and additional information via the internet, please refer to the information at the beginning of this section.
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Last update on 2024-06-16 / Affiliate links / Images from Amazon Product Advertising API
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SEOCONTENT-START
Recall Campaign Initial Notification
DATE: May 5, 2023
Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Internal IMPORTANT RECALL CAMPAIGN INFORMATION Please see the attached documents related to the campaign listed above. Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Recall Campaign Initial Notification Update Battery Management System Software MY22-23 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, 297 platform) DATE: May 5, 2023 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Internal Recall Campaign Initial Notification May 5, 2023 Campaign No. : NHTSA ID Campaign Desc. : Update Battery Management System Software TBD 23V309 23P2197602 This is to notify you of the new Recall Campaign to update the Battery Management System software on certain 3,823 Model Year (“MY”) 2022-2023 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, 297 platform) vehicles. The recall campaign will be visible on the www.NHTSA.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “PENDING” on May 5, 2023. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2022-2023 S-Class (223 platform), EQE (295 platform), EQS SUV (296 platform) and EQS (297 platform) vehicles, the monitoring function of the high-voltage battery might be impaired over time. In certain circumstances, a warning alerting the driver of a battery malfunction might not activate in the event of a fault. In such instances, the warning would not comply with a requirement of FMVSS 305 (Electric-powered vehicles). What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealership will update the software for the Battery Management System on the affected vehicles. Parts Remedy is not available at this time. Vehicles Affected Vehicle Model Year(s) 2022-2023 Vehicle Model S-Class, EQE, EQS SUV, and EQS Vehicle Populations Total Recall Population 3,823 Total Vehicles in Dealer Inventory 18 Given this notice, it is a violation of Federal law for a dealer to sell or lease any new vehicles in dealer inventory covered by this notification until the vehicle has been repaired. Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in NetStar VMI and Xentry Portal. Once the repair is complete the vehicle may be sold or leased. Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired. As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s). Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new vehicles covered by this notification until the vehicle has been repaired. Next Steps/Notes Customer Notification Timeline Customer letters will be mailed on or before June 27, 2023. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. Customer Reimbursement Customer reimbursement is not being offered for this campaign. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES.
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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-309 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Mercedes-Benz USA, LLC Submission Date : MAY 02, 2023 NHTSA Recall No. : 23V-309 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway Jacksonville FL 32218 Company phone : 1-877-496-3691 Population : Number of potentially involved : 3,823 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2023-2023 Mercedes-Benz EQE 350 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 2 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 24, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 Mercedes-Benz S580e Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 3 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 24, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-309 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 3 : 2023-2023 Mercedes-Benz EQS SUV 450 Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : HYBRID ELECTRIC Descriptive Information : 3 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 24, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 4 : 2023-2023 Mercedes-Benz EQS SUV 450+ Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : HYBRID ELECTRIC Descriptive Information : 4 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 14, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2023-2023 Mercedes-Benz EQS SUV 580 Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : HYBRID ELECTRIC Descriptive Information : 8 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 14, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 6 : 2022-2023 Mercedes-Benz EQS 450 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 27 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 14, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-309 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 7 : 2022-2022 Mercedes-Benz EQS 450+ Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 2772 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 14, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 8 : 2022-2023 Mercedes-Benz EQS 580 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 871 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 14, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 9 : 2022-2022 Mercedes-Benz AMG EQS 53 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 133 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 24, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Noncompliance : Description of the Noncompliance : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2022-2023 S-Class (223 platform) , EQE (295 platform), EQS SUV (296 platform) and EQS (297 platform) vehicles, the monitoring function of the high-voltage battery might be impaired over time. FMVSS 1 : 305 – Electric-powered vehicles: Electrolyte spillage and electrical shock protection FMVSS 2 : NR Description of the Safety Risk : In certain circumstances, a warning alerting the driver of a battery malfunction might not activate in the event of a fault. In such instances, the Part 573 Safety Recall Report 23V-309 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 warning would not comply with a requirement of FMVSS 305 Description of the Cause : NR Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899024302 Component Name 2 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899023903 Component Name 3 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899023703 Component Name 4 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899025203 Component Name 5 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899024603 Component Name 6 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899025303 Part 573 Safety Recall Report 23V-309 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 7 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899024203 Component Name 8 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899026006 Component Name 9 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899026103 Component Name 10 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899025603 Component Name 11 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899023503 Component Name 12 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899023603 Component Name 13 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899024303 Part 573 Safety Recall Report 23V-309 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : Mercedes-Benz AG Address : NR Foreign States Country : Germany Chronology : In May 2022, MBAG examined an abnormality identified during battery and software testing. Internal tests indicated a potential deviation from specifications. MBAG’s further investigation determined that in some vehicles, the Battery Management System (BMS) might experience a fault that could affect certain diagnostic functions. MBAG initiated a review of whether the identified potential fault might have regulatory compliance implications in any of the jurisdictions in which the potentially affected vehicles were sold. From December 2022 through March 2023, MBAG continued to investigate possible effects of the potential BMS diagnostic fault. This continued investigation identified a potential failure of a warning indicator to alert the driver of a BMS malfunction. On April 21, 2023, MBAG determined that non-compliance with FMVSS 305 cannot be ruled out and decided to conduct a recall. MBAG is not aware of any warranty claims, field or service reports, or reports of property damage, death, or injury related to this defect. Description of Remedy : Description of Remedy Program : As a precautionary measure, an authorized Mercedes-Benz dealership will update the software for the Battery Management System on the affected vehicles. Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty. How Remedy Component Differs from Recalled Component : Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. A7899024903 Battery Management Software A7899025003 Battery Management Software A7899024502 Battery Management Software Part 573 Safety Recall Report 23V-309 Page 7 The information contained in this report was submitted pursuant to 49 CFR §573 A7899029302 Battery Management Software A7899024202 Battery Management Software A7899024902 Battery Management Software A7899022202 Battery Management Software A7899023402 Battery Management Software A7899024102 Battery Management Software A7899022602 Battery Management Software A7899021702 Battery Management Software A7899021602 Battery Management Software Identify How/When Recall Condition was Corrected in Production : A change in the Battery Management System ensures that this issue can no longer occur from September 9, 2022 onwards. Recall Schedule : Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on May 5, 2023. Owners will be notified of the voluntary recall campaign on or before June 27, 2023. A copy of all communications will be provided when available. Planned Dealer Notification Date : MAY 05, 2023 – NR Planned Owner Notification Date : JUN 27, 2023 – NR * NR – Not Reported
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June, 2023 This notice applies to your vehicle, VIN: Update Battery Management System Software NHTSA Recall ID: 23V309 Dear Mercedes-Benz Owner: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles has decided that certain model year MY22- MY23 S-Class, EOE, EQS SUV, and EQS vehicles fail to conform to Federal Motor Vehicle Safety Standard (“FMVSS”) Number 305 “Electric-powered vehicles: Electrolyte Spillage and Electrical Shock Protection.” Our records indicate that your vehicle is included in the affected population. ~ What is the concern? The high-voltage battery monitoring system software may not alert the operator of a battery malfunction, which could result in an increased risk of injury. As such, these vehicles fail to comply with the requirements of FMVSS 305. Unfortunately, the software to remedy this is not yet available. When the battery management system software becomes available, we will send you another letter asking you to take your vehicle to an authorized Mercedes-Benz dealer to have the recall completed free of charge. Should you have any concerns or questions regarding your vehicle before you receive the next recall letter when the software is available, please contact an authorized Mercedes-Benz dealer. If for any reason a dealer is unable to remedy your situation, we are always happy to hear from you. Please contact us at 1-800-367-6372. A vehicle ident ification number (VIN)-based recall lookup tool on our MBUSA.com website offers a search function that will indicate whether a vehicle has been subject to a safety recall, and whether that vehicle has had the free remedy performed. Please visit www.MBUSA.com/recall. We apologize for any inconvenience this may have caused and look forward to taking care of this important safety issue immediately. Sincerely, Mercedes-Benz USA Additional Information for Owners: If an authorized Mercedes-Benz dealer for any reason is unable to remedy the situation without charge, or within a reasonable amount of t ime, pursuant to law 49 U.S.C. Chapter 301, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, D.C. 20590 or call the toll-free Auto Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153); or go to https: //www.safercar.gov. If this is a leased vehicle and the lessor and registered owner receive this notice, please forward this information by first class mail to the lessee within 10 business days to comply with Federal Regulations. If you are no longer the vehicle owner, or have a change of address, please visit www.mbusa.com/recalls, input your VIN into the VIN lookup tool and input your updated information on the site. Additionally, you may also contact our customer assistance center at 1- 800-367-6372. If this is a leased vehicle and the lessor and registered owner receive this notice, please forward this information by first class mail to the lessee within 10 days to comply with federal regulations.
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Recall Campaign Launch Notification
DATE: July 28, 2023
Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis IMPORTANT RECALL CAMPAIGN UPDATE Please see the attached documents related to the campaign listed above. Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES. Sincerely, Gregory Gunther Senior Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Senior Manager, Vehicle Compliance and Analysis, Engineering Services RE: Recall Campaign Launch Notification Update Battery Management System Software MY22-23 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, 297 platform) DATE: July 28, 2023 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Launch Notification July 28, 2023 Campaign No. : NHTSA ID Campaign Desc. : Update Battery Management System Software 2023070013 23V309 23P5499108 This is to notify you of the Recall Campaign Launch to update the Battery Management System software on 3,679 Model Year (“MY”) 2022-2023 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, and 297 platform) vehicles. The recall campaign will be visible on the www.NHTSA.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “OPEN” on July 28, 2023. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2022-2023 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, and 297 platform) vehicles, the monitoring function of the high-voltage battery might be impaired over time. In certain circumstances, a warning alerting the driver of a battery malfunction might not activate in the event of a fault. In such instances, the warning would not comply with a requirement of FMVSS 305 (Electric-powered vehicles). What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will update the software for the Battery Management System on the affected vehicles. Parts The remedy is available and can be performed. Vehicles Affected Vehicle Model Year(s) 2022-2023 Vehicle Model S-Class, EQE, EQS, and EQS SUV Vehicle Populations Total Recall Population 3,679 Total Vehicles in Dealer Inventory 24 Given this notice, it is a violation of Federal law for a dealer to sell or lease any new vehicles in dealer inventory covered by this notification until the vehicle has been repaired. Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in NetStar VMI and Xentry Portal. Once the repair is complete the vehicle may be sold or leased. Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired. As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s). Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new vehicles covered by this notification until the vehicle has been repaired. Next Steps/Notes Customer Notification Timeline Interim customer letters were mailed on June 16, 2023. Final customer letters will be mailed approximately 3 weeks after the launch of each wave. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. Customer Reimbursement Customer reimbursement is not being offered for this campaign. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES. 2 Campaign No. 2023070013, July 2023 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Various Models Model Year 2022-2023 Update Battery Management System Software Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2022-2023 S-Class (223 platform), EQE (295 platform), EQS SUV (296 platform) and EQS (297 platform) vehicles, the monitoring function of the high-voltage battery might be impaired over time. In certain circumstances, a warning alerting the driver of a battery malfunction might not activate in the event of a fault. In such instances, the warning would not comply with a requirement of FMVSS 305 (Electric-powered vehicles). An authorized Mercedes-Benz dealership will update the software for the Battery Management System on the affected vehicles. Prior to performing this Campaign: VMI must be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly. Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Approximately 3,679 vehicles are affected. Order No. P-RC- 2023070013 2 P-RC-2023070013 Update Battery Management System Software Always use the latest XENTRY Diagnosis software release with all available add-ons. Follow the operation steps exactly as described in XENTRY Diagnosis. Use a charger to ensure sufficient power supply to the vehicle’s on-board electrical battery system (greater than 12.5 V). If XENTRY Diagnosis is already connected to the vehicle, start with Work Procedure step 2. If two or more software updates or SCN codings are performed during a single workshop visit, operation items 02-4762 and 02-5058 may be invoiced only on one of the workshop orders. Work Procedure 1. Connect XENTRY Diagnosis. 2. Update battery management system control unit software. To do this, select menu item “Quick test view → N82/2 battery management system (BMS) → Adaptations → Control unit update → Update of control unit software”. Then follow the user guidance in XENTRY Diagnosis. 3. Disconnect XENTRY Diagnosis. __________________________________________________________________________________________________ Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Warranty Information Damage Code Operation Number Description Labor Time (hrs.) 54 991 08 02-9334 Update battery management system control unit software (with XENTRY Diagnosis connected) 0.1 02-4762* Connect/disconnect diagnostic system (XENTRY Diagnosis) 0.1 02-5058* Connect/disconnect starter battery charger (with XENTRY Diagnosis connected) 0.1 * Invoice operation item only once for each workshop order. Note: Always check Xentry Operation Time (XOT) for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document.
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August, 2023 Thi: notiee applies to your vehiele, VIN: Update Battery Management System Software MBUSA ID: 2023070013, NHTSA Reeall ID: 23V309 • The remedy is now available for your vehicle. – • Schedule an appointment with your aut horized Mercedes-Benz dealer as soon as possible. • This repair will be provided FREE of charge. Dear Mercedes-Benz Owner: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has decided that certain Model Year 2022- 2023 S-Class, EOE, EOS, and EOS SUV vehicles fail to conform to Federal Motor Vehicle Safety Standard (“FMVSS”) Number 305 “Electric-powered vehicles: Electrolyte Spillage and Electrica l Shock Protection.” Our records indicate that your vehicle is included in the affected population. ~ What i: the i::ue? The high-voltage Battery Management System software may not alert the operator of a battery malfunction, which could result in an increased risk of injury. As such, these vehicles fail to comply with the requ irements of FMVSS 305. What will your Mereede:-Benz Dealer do? An authorized Mercedes-Benz dealer will update the high-voltage Battery Management System software. Thi: vehiele repair will be provided at no eo:t to you. While the repair t ime can be less than 1 hour, your dealer can provide you with a better estimate of the overa ll t ime for this visit. As a matter of normal service process, an authorized Mercedes-Benz dealer will also check for other repair measures that might be applicable to your vehicle, which may increase the required working t ime. You will not be charged for other services or repairs unless so requested. Step: to take. • Find your nearest authorized Mercedes-Benz dealer at mbu:a.eom/ reeall to schedule your recall repair. • Please mention you are scheduling an appointment for Mercedes-Benz Recall Campaign 2023070013. • You may be asked for your VIN, which for your convenience is located at the top of this letter. We apologize for any inconvenience th is may have caused and look forward to taking care of this important safety recall immediately. Sincerely, Mercedes-Benz USA What if I no longer own or drive the vehiele or would like to update my eontaet information? In the event you need to update your contact information or have updates concerning the vehicle, please visit mbusa.com/ recalls (or scan the QR Code to the left) and submit your VIN using the VIN recall lookup tool and complete the “Recall Contact Information” section on the website. If possible, • please provide any contact information of the current owner/driver so we can contact them. Additional Information for Owner:: A VIN-based recall lookup tool is available at mbu: a.eom/ reeall:, which can be used to check whether a vehicle has been subject to a safety recall, or had the remedy performed. Should you have any questions or encounter any difficulty regarding th is Recall Campaign, please contact an authorized Mercedes-Benz dealer. Should an authorized Mercedes-Benz dealer be unable to address your concerns please contact us at 1-(800) FORMERCEDES (1-800-367-63 72). We are always happy to hear from you. If this is a leased vehicle and the lessor and registered owner receive this notice, please forward this information by first class mail to the lessee with in 10 business days to comply with Federal Regulations. If an authorized Mercedes-Benz dealer for any reason is unable to remedy the situation without charge, or within a reasonable amount of t ime, Pursuant to law 49 U.S.C. Chapter 301, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, D.C. 20590 or call the tollfree Auto Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153); or go to https://www.safercar.gov.
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Recall Campaign Update Notification
DATE: September 19, 2023
Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis IMPORTANT RECALL CAMPAIGN UPDATE Please see the attached documents related to the campaign listed above. Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES. Sincerely, Gregory Gunther Senior Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Senior Manager, Vehicle Compliance and Analysis, Engineering Services RE: Recall Campaign Update Notification Update Battery Management System Software MY22-23 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, and 297 platform) DATE: September 19, 2023 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Update Notification September 19, 2023 Campaign No. : NHTSA ID Campaign Desc. : Update Battery Management System Software 2023070013 23V309 23P5499108 This is to notify you of a Recall Campaign Update to update the Battery Management System software on 3,679+5 (added September 14, 2023) Model Year (“MY”) 2022-2023 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, and 297 platform) vehicles. The recall campaign will be visible on the www.NHTSA.gov website and may generate questions from customers. 3,679 VINs were flagged in VMI as “OPEN” on July 28, 2023. The additional VINs were flagged in VMI as “OPEN” on September 14, 2023. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2022-2023 S-Class, EQE, EQS SUV, and EQS (223, 295, 296, and 297 platform) vehicles, the monitoring function of the high-voltage battery might be impaired over time. In certain circumstances, a warning alerting the driver of a battery malfunction might not activate in the event of a fault. In such instances, the warning would not comply with a requirement of FMVSS 305 (Electric-powered vehicles). What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will update the software for the Battery Management System on the affected vehicles. Parts The remedy is available and can be performed. Vehicles Affected Vehicle Model Year(s) 2022-2023 Vehicle Model S-Class, EQE, EQS, and EQS SUV Vehicle Populations Total Recall Population 3,679 (July 28, 2023) + 5 (September 14, 2023) Total Vehicles in Dealer Inventory 24 Given this notice, it is a violation of Federal law for a dealer to sell or lease any new vehicles in dealer inventory covered by this notification until the vehicle has been repaired. Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in NetStar VMI and Xentry Portal. Once the repair is complete, the vehicle may be sold or leased. Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired. As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s). Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new vehicles covered by this notification until the vehicle has been repaired. Next Steps/Notes Customer Notification Timeline Interim customer letters were mailed on June 16, 2023. Wave 1: Final customer letters were mailed on August 18, 2023. Amendment: Final customer letters will be mailed on or before September 29, 2023. Final customer letters will be mailed approximately 2-3 weeks after the launch of each wave. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. Customer Reimbursement Customer reimbursement is not being offered for this campaign. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES. 2 Campaign No. 2023070013, July 2023 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Various Models Model Year 2022-2023 Update Battery Management System Software Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2022-2023 S-Class (223 platform), EQE (295 platform), EQS SUV (296 platform) and EQS (297 platform) vehicles, the monitoring function of the high-voltage battery might be impaired over time. In certain circumstances, a warning alerting the driver of a battery malfunction might not activate in the event of a fault. In such instances, the warning would not comply with a requirement of FMVSS 305 (Electric-powered vehicles). An authorized Mercedes-Benz dealership will update the software for the Battery Management System on the affected vehicles. Prior to performing this Campaign: VMI must be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly. Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Approximately 3,679 vehicles are affected. Order No. P-RC- 2023070013 2 P-RC-2023070013 Update Battery Management System Software Always use the latest XENTRY Diagnosis software release with all available add-ons. Follow the operation steps exactly as described in XENTRY Diagnosis. Use a charger to ensure sufficient power supply to the vehicle’s on-board electrical battery system (greater than 12.5 V). If XENTRY Diagnosis is already connected to the vehicle, start with Work Procedure step 2. If two or more software updates or SCN codings are performed during a single workshop visit, operation items 02-4762 and 02-5058 may be invoiced only on one of the workshop orders. Work Procedure 1. Connect XENTRY Diagnosis. 2. Update battery management system control unit software. To do this, select menu item “Quick test view → N82/2 battery management system (BMS) → Adaptations → Control unit update → Update of control unit software”. Then follow the user guidance in XENTRY Diagnosis. 3. Disconnect XENTRY Diagnosis. __________________________________________________________________________________________________ Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Warranty Information Damage Code Operation Number Description Labor Time (hrs.) 54 991 08 02-9334 Update battery management system control unit software (with XENTRY Diagnosis connected) 0.1 02-4762* Connect/disconnect diagnostic system (XENTRY Diagnosis) 0.1 02-5058* Connect/disconnect starter battery charger (with XENTRY Diagnosis connected) 0.1 * Invoice operation item only once for each workshop order. Note: Always check Xentry Operation Time (XOT) for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document.
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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-309 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Mercedes-Benz USA, LLC Submission Date : SEP 19, 2023 NHTSA Recall No. : 23V-309 Manufacturer Recall No. : 2023070013 Manufacturer Information : Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway Jacksonville FL 32218 Company phone : 1-877-496-3691 Population : Number of potentially involved : 3,828 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2023-2023 Mercedes-Benz EQE 350 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 2 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 24, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 Mercedes-Benz S580e Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 3 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 24, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-309 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 3 : 2023-2023 Mercedes-Benz EQS SUV 450 Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : HYBRID ELECTRIC Descriptive Information : 3 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 24, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 4 : 2023-2023 Mercedes-Benz EQS SUV 450+ Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : HYBRID ELECTRIC Descriptive Information : 4 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 14, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2022-2022 Mercedes-Benz AMG EQS 53 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 133 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 24, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 6 : 2022-2023 Mercedes-Benz EQS 450 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 30 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 14, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-309 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 7 : 2022-2022 Mercedes-Benz EQS 450+ Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 2772 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 14, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 8 : 2022-2023 Mercedes-Benz EQS 580 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : 873 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 14, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 9 : 2023-2023 Mercedes-Benz EQS SUV 580 Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : HYBRID ELECTRIC Descriptive Information : 8 vehicles. The recall population was determined through production records. Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. Production Dates : FEB 14, 2021 – SEP 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Noncompliance : Description of the Noncompliance : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2022-2023 S-Class (223 platform) , EQE (295 platform), EQS SUV (296 platform) and EQS (297 platform) vehicles, the monitoring function of the high-voltage battery might be impaired over time. FMVSS 1 : 305 – Electric-powered vehicles: Electrolyte spillage and electrical shock protection FMVSS 2 : NR Description of the Safety Risk : In certain circumstances, a warning alerting the driver of a battery malfunction might not activate in the event of a fault. In such instances, the Part 573 Safety Recall Report 23V-309 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 warning would not comply with a requirement of FMVSS 305. This FMVSS non-compliance could result in an increased risk of injury. Description of the Cause : NR Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899024302 Component Name 2 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899023903 Component Name 3 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899023703 Component Name 4 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899025203 Component Name 5 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899024603 Part 573 Safety Recall Report 23V-309 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 6 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899025303 Component Name 7 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899024203 Component Name 8 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899026006 Component Name 9 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899026103 Component Name 10 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899025603 Component Name 11 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899023503 Component Name 12 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899023603 Part 573 Safety Recall Report 23V-309 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 13 : Battery Management Software Component Description : Battery Management Software Component Part Number : A7899024303 Supplier Identification : Component Manufacturer Name : Mercedes-Benz AG Address : NR Foreign States Country : Germany Chronology : In May 2022, MBAG examined an abnormality identified during battery and software testing. Internal tests indicated a potential deviation from specifications. MBAG’s further investigation determined that in some vehicles, the Battery Management System (BMS) might experience a fault that could affect certain diagnostic functions. MBAG initiated a review of whether the identified potential fault might have regulatory compliance implications in any of the jurisdictions in which the potentially affected vehicles were sold. From December 2022 through March 2023, MBAG continued to investigate possible effects of the potential BMS diagnostic fault. This continued investigation identified a potential failure of a warning indicator to alert the driver of a BMS malfunction. On April 21, 2023, MBAG determined that non-compliance with FMVSS 305 cannot be ruled out and decided to conduct a recall. September 19, 2023: On September 12, MBAG ran a new search to identify vehicle allocation for markets outside of the USA. It was noted that 5 vehicles previously located in foreign markets were now in the US market. As a result, the additional vehicles were added to recall 23V309. MBAG is not aware of any warranty claims, field or service reports, or reports of property damage, death, or injury related to this defect. Part 573 Safety Recall Report 23V-309 Page 7 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : As a precautionary measure, an authorized Mercedes-Benz dealership will update the software for the Battery Management System on the affected vehicles. Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty. How Remedy Component Differs from Recalled Component : Vehicles outside of the recall population have a Battery Management System that complies with FMVSS 305. A7899024903 Battery Management Software A7899025003 Battery Management Software A7899024502 Battery Management Software A7899029302 Battery Management Software A7899024202 Battery Management Software A7899024902 Battery Management Software A7899022202 Battery Management Software A7899023402 Battery Management Software A7899024102 Battery Management Software A7899022602 Battery Management Software A7899021702 Battery Management Software A7899021602 Battery Management Software Identify How/When Recall Condition was Corrected in Production : A change in the Battery Management System ensures that this issue can no longer occur from September 9, 2022 onwards. Recall Schedule : Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on May 5, 2023. Owners will be notified of the voluntary recall campaign on or before June 27, 2023. A copy of all communications will be provided when available. Planned Dealer Notification Date : MAY 05, 2023 – NR Planned Owner Notification Date : JUN 27, 2023 – NR * NR – Not Reported
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