Active Brake Assist May Not Engage – 2019 Mercedes-Benz

July 19, 2019 NHTSA CAMPAIGN NUMBER: 19V540000

Active Brake Assist May Not Engage

An impaired Active Brake Assist may not automatically apply partial or full braking as expected, increasing the risk of a crash.

 

NHTSA Campaign Number: 19V540

Manufacturer Mercedes-Benz USA, LLC.

Components FORWARD COLLISION AVOIDANCE

Potential Number of Units Affected 1,957

 

Summary

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2019 C300 Cabrio, C300A Cabrio 4MATIC, C300 Coupe, C300 Coupe 4MATIC, C300, C300 4MATIC, C43 AMG Cabrio 4MATIC, C43 AMG Coupe 4MATIC, C43 AMG 4MATIC, C63 AMG Cabrio, C63S AMG Cabrio, C63 AMG Coupe, C63S AMG Coupe, C63 AMG, C63S AMG, CLS450, CLS450 4MATIC, CLS53 AMG 4MATIC, E300, E300 4MATIC, E450 Cabrio, E450 Cabrio 4MATIC, E450 Coupe, E450 Coupe 4MATIC, E450 Wagon 4MATIC, E450 4MATIC, E53 AMG Cabrio 4MATIC, E53 AMG Coupe 4MATIC, E53 AMG 4MATIC, E63S AMG 4MATIC, E63S AMG Wagon 4MATIC, S450, S450 4MATIC, S560 Cabrio, S560 Coupe 4MATIC, S560, S560 4MATIC, S560 4MATIC Maybach, S63 AMG Cabrio 4MATIC, S63 AMG Coupe 4MATIC, S63 AMG 4MATIC, S65 AMG Cabrio, S65 AMG, and AMG GT53 Coupe 4MATIC vehicles, and 2020 GLC300 Coupe 4MATIC, GLE350 4MATIC, and GLE450 4MATIC vehicles equipped with the Driver Assistance Package. A software error in the radar sensor control unit may impair the functionality of the Active Brake Assist.

 

Remedy

MBUSA will notify owners, and dealers will update the radar sensor control unit software, free of charge. The recall began September 13, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA’s number for this recall is 2019080008.

 

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.safercar.gov.

 

Check if your Mercedes-Benz has a Recall

 

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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 Launch Notification Update Radar Control Unit SW MY19-20 Various Models	DATE: August 23, 2019

 

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

Department Manager, Vehicle Compliance & Analysis

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Recall Campaign Launch Notification				August 23, 2019
Campaign No. :	NHTSA ID	Campaign Desc. :		Update Radar Control Unit SW
2019080007	19V540	19P5490318
This is to notify you of a new Recall Campaign regarding the Active Brake Assist software on 1957 Model Year (“MY”) 2019-2020 GLE-Class (167 platform), C-Class (205 platform), E-Class/E-Class Coupe  (213/238 platform), S-Class Coupe/S-Class (217/222 platform), GLC-Class (253 platform), CLS-Class (257 platform), and AMG GT-Class 4 Door (290 platform) vehicles . The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “OPEN” on August 23, 2019.
Background
Issue		Daimler AG (“DAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2019-2020 GLE-Class (167 platform), C-Class (205 platform), E-Class/E-Class Coupe (213/238 platform), S-Class Coupe/S-Class (217/222 platform), GLC-Class (253 platform), CLS-Class (257 platform), and AMG GT-Class 4 Door (290 platform) vehicles with Driver Assistance Package, the  radar control unit software might not meet current production specification.  Due to the impaired signal matching of the radar sensor, autonomous partial or full braking might not function as intended. In this case, the vehicle’s Active Brake Assist feature for reducing or avoiding collisions could be impaired, increasing the risk of an injury or a crash.
What We’re Doing		MBUSA will conduct a voluntary recall.  An authorized Mercedes-Benz dealer will update the radar sensor control unit software on the affected vehicles.
Parts		Parts are not required as the remedy is software-based.
Vehicles Affected
Vehicle Model Year(s)		2019-2020
Vehicle Model		GLE-Class, C-Class, E-Class/E-Class Coupe, S-Class Coupe/S-Class, GLC-Class, CLS-Class, and AMG GT-Class 4 Door
Vehicle Populations
Total Recall Population		1957
Total Vehicles in Dealer Inventory		417
Given this notice, it is a violation of Federal law for a dealer to sell or lease any new MY19-20 GLE-Class, C-Class, E-Class/E-Class Coupe, S-Class Coupe/S-Class, GLC-Class, CLS-Class, or AMG GT-Class 4 Door 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 Star TekInfo 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.   Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new MY19-20 GLE-Class, C-Class, EClass/E-Class Coupe, S-Class Coupe/S-Class, GLC-Class, CLS-Class, or AMG GT-Class 4 Door vehicles covered by this notification until the vehicle has been repaired.
Next Steps/Notes
Customer Notification Timeline			Customer letters will be mailed approximately one week after the remedy becomes available.
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.
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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Campaign No. 2019080007, August 2019

TO:	ALL MERCEDES-BENZ CENTERS
SUBJECT:	Models Various Model Years 2019-2020 Updating the DISTRONIC (DTC) control unit software

 

Daimler AG (“DAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain  Model Year (“MY”) 2019-2020 GLE-Class (167 platform), A-Class (177 platform), C-Class (205 platform), E-Class/E-Class Coupe (213/238 platform), S-Class Coupe/S-Class (217/222 platform), B-Class (247 platform), GLC-Class (253 platform), CLS-Class (257 platform), and AMG GT-Class 4 Door (290 platform) vehicles with Driver Assistance Package, the radar control unit software might not meet  current production specification. Due to the impaired signal matching of the radar sensor, the autonomous partial or full braking might not function as intended. In this case the vehicle’s Active Brake Assist feature for reducing or avoiding collisions would be impaired, increasing the risk of an injury or a crash. As a precautionary measure, an authorized Mercedes-Benz dealer will update the radar sensor control unit software on the affected vehicles.

 

Prior to performing this Recall Campaign:

• Please check VMI to determine if the vehicle is involved in the Campaign and if it has been previously repaired. Always Check VMI for any open campaigns, and perform accordingly.
• Please review the entire Recall Campaign bulletin and follow the repair procedure exactly as described.

Please note that Recall Campaigns do not expire and may also be performed on a vehicle with a vehicle status indicator.

 

Approximately 1,963 vehicles are involved.

 

Order No. P-RC-2019080007

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 Note:

• Use DAS/Xentry 07/19 with all associated patches or higher.
• Follow the steps exactly as described in DAS/Xentry.
• Connect battery charger (battery voltage >12.5V).
• Ensure all electrical consumers are switched-off.
• In the event of software/SCN update issues, contact Star Diagnosis User Help Desk. Please refer to the “precall” check list before contacting UHD

Refer to Star Diagnosis System (SDS) Best Practices Guide.

 

Work procedure

 

1. Connect XENTRY Diagnosis.

 

2. Update software control unit DISTRONIC (DTR).
   • Select the menu item “Short Test View ⇒ B92/12-DISTRONIC (DTR) ⇒ Adjustments ⇒ Control Unit Update ⇒ Control Unit Software Update”.
   • Then follow the user guidance in XENTRY Diagnosis.

 

Warranty Information

Operation:

Connect/disconnect battery charger (02-5058)
Star Diagnosis System (SDS), Connect/disconnect (02-4762)
Update software control unit DISTRONIC (DTR)(02-9334)

Damage Code	Operation Number	Labor Time (hrs.)
54 903 18 8	02-5058	0.1
	02-4762	0.1
	02-9334	0.1

 

Note : Operation labor times are subject to change

 

P-RC-2000XXXXXX

 

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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 Impaired Active Brake Assist MY19-20 Various Models	DATE: July 26,2019

 

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-FORMERCEDES.

 

Sincerely,

Gregory Gunther

Department Manager, Vehicle Compliance & Analysis

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IMPORTANT SAFETY RECALL 2019080007
This notice applies to your vehicle, VIN:
Impaired Active Brake Assist
NHTSA Recall # 19V540

 

September, 2019

• A remedy is available for your vehicle.
• Schedule an appointment with your authorized 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 requirements of the National Traffic and Motor Vehicle Safety Act.

Daimler AG (“DAG”), the manufacturer of Mercedes-Benz vehicles, has decided that a defect which relates to motor vehicle safety exists in certain Model Year (“MY”) 2019-2020 GLE-Class, C-Class, E-Class/E-Class Coupe, S-Class Coupe/S-Class, GLC-Class, CLSClass, and AMG GT-Class 4 Door vehicles.  Our records indicate that your vehicle is included in the affected population of vehicles.

What is the CONCERN?	DAG determined that on certain MY 2019-2020 GLE-Class (167 platform), C-Class (205 platform), EClass/E-Class Coupe  (213/238 platform), S-Class Coupe/S-Class (217/222 platform), GLC-Class (253 platform), CLS-Class (257 platform), and AMG GT-Class 4 Door (290 platform) vehicles with the Driver Assistance Package, the radar control unit software might not meet current production specification.  Due to the impaired signal matching of the radar sensor,  autonomous partial or full braking might not function as intended. In this case, the vehicle’s Active Brake Assist feature for reducing or avoiding collisions could be impaired, increasing the risk of an injury or a crash.
What will your DEALER DO?	An authorized Mercedes-Benz dealer will update the radar sensor control unit software on the affected vehicles.  This service will be provided free of charge.  We are dedicated to always delivering the best customer experience, and respect for your time is a top priority. While the minimum repair time can be up to 30 minutes, your dealer can provide you with a better estimate of the overall time for this service visit.  As a matter of normal service process, an authorized MercedesBenz dealer will also check for other repair measures which might be applicable to your vehicle and this may increase the required working time.
What should YOU DO?	For additional information and to schedule an appointment, please contact your preferred authorized Mercedes-Benz dealer at your earliest convenience.  To locate authorized dealers see www.mbusa.com/recall. Please mention you are scheduling an appointment to update the radar sensor control unit software under Recall Campaign #2019080007.You may be asked for your 17-digit Vehicle Identification Number (VIN) which for your convenience is located above your name at the top of this letter.
Information for Owners	In the event that you are no longer the vehicle owner, or have had a change of address, please complete the reverse side and return the updated information in the enclosed envelope. 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.

 

To find the most convenient authorized MercedesBenz dealer from your smartphone, scan the QR code to the left.

 

A VIN-based recall lookup tool on our MBUSA.com website now offers a search feature that will indicate whether a vehicle has been subject to a safety recall, and whether that vehicle has had the free remedy performed. See www.mbusa.com/recall. Should you have any questions or encounter any difficulty regarding this Recall Campaign, 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) FORMERCEDES (1-800-367-6372).

If an authorized Mercedes-Benz dealer for any reason is unable to remedy the situation without charge, or within a reasonable amount of time, 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.

We apologize for any inconvenience this situation may cause you.

Mercedes-Benz USA, LLC
A Daimler Company
One Mercedes-Benz Drive
Sandy Springs, GA  30328
Phone (770) 705-0600

IMPORTANT VIN:

If for any reason YOU NO LONGER OWN THIS VEHICLE OR have a CHANGE OF ADDRESS, please COMPLETE THE SECTION BELOW, place in the ENCLOSED ENVELOPE, and DROP IN ANY MAIL BOX. If possible, provide the name and address of the present owner so that we may contact them.

 

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Campaign No. :	NHTSA ID	Campaign Desc. :	Impaired Active Brake Assist
TBA	19V540	PEND ACTV BR ASST
This is to notify you of a new Recall Campaign regarding the Active Brake Assist software on 1957 Model Year (“MY”) 2019-2020 GLE-Class (167 platform), C-Class (205 platform), E-Class/E-Class Coupe  (213/238 platform), S-Class Coupe/S-Class (217/222 platform), GLC-Class (253 platform), CLS-Class (257 platform), and AMG GT-Class 4 Door (290 platform) vehicles . The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “PENDING” on July 26, 2019.
Background
Issue		Daimler AG (“DAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2019-2020 GLE-Class (167 platform), C-Class (205 platform), EClass/E-Class Coupe (213/238 platform), S-Class Coupe/S-Class (217/222 platform), GLCClass (253 platform), CLS-Class (257 platform), and AMG GT-Class 4 Door (290 platform) vehicles with Driver Assistance Package, the  radar control unit software might not meet current production specification.
What We’re Doing		MBUSA will conduct a voluntary recall.  An authorized Mercedes-Benz dealer will update the radar sensor control unit software on the affected vehicles.
Parts		A remedy is not yet available. An additional notification will be sent once a remedy is available.
Vehicles Affected
Vehicle Model Year(s)		2019-2020
Vehicle Model		GLE-Class, C-Class, E-Class/E-Class Coupe, S-Class Coupe/S-Class, GLC-Class, CLS-Class, and AMG GT-Class 4 Door
Vehicle Populations
Total Recall Population		1957
Total Vehicles in Dealer Inventory		465
Given this notice, it is a violation of Federal law for a dealer to sell or lease any new MY19-20 GLE-Class, C-Class, E-Class/E-Class Coupe, S-Class Coupe/S-Class, GLC-Class, CLS-Class, or AMG GT-Class 4 Door 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 Star TekInfo 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.    Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new MY19-20 GLE-Class, C-Class, E-Class/E-Class Coupe, S-Class Coupe/S-Class, GLC-Class, CLS-Class, or AMG GT-Class 4 Door vehicles covered by this notification until the vehicle has been repaired.
Next Steps/Notes
Customer Notification Timeline		Customer letters will be mailed approximately one week after the remedy becomes available.
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.
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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17 Affected Products

Vehicles

MAKE	MODEL	YEAR
MERCEDES BENZ	AMG GT 53	2019
MERCEDES BENZ	C300	2019
MERCEDES BENZ	C43 AMG	2019
MERCEDES BENZ	C63 AMG	2019
MERCEDES BENZ	CLS450	2019
MERCEDES BENZ	CLS53	2019
MERCEDES BENZ	E300	2019
MERCEDES BENZ	E450	2019
MERCEDES BENZ	E53	2019
MERCEDES BENZ	E63S AMG	2019
MERCEDES BENZ	GLC300	2020
MERCEDES BENZ	GLE350	2020
MERCEDES BENZ	S450	2019
MERCEDES BENZ	S560	2019
MERCEDES BENZ	S63 AMG	2019
MERCEDES BENZ	S65 AMG	2019
MERCEDES-BENZ	GLE450	2020

 

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12 Associated Documents

Defect Notice 573 Report

RCLRPT-19V540-4373.PDF 237.788KB

 

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Manufacturer Notices(to Dealers,etc) – RE: Recall Campaign Initial Notification Impaired Active Brake Assist MY19-20 Various Models

RCMN-19V540-4350.pdf 169.923KB

 

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Recall Acknowledgement

RCAK-19V540-5981.pdf 245.164KB

 

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ISSUED Owner Notification Letter(Part 577)

RCONL-19V540-3360.pdf 181.536KB

 

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Recall Quarterly Report #3, 2020-1

RCLQRT-19V540-2290.PDF 211.33KB

 

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Recall Quarterly Report #2, 2019-4

RCLQRT-19V540-4149.PDF 211.241KB

 

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Manufacturer Notices(to Dealers,etc)- RE: Recall Campaign Launch Notification Update Radar Control Unit SW MY19-20 Various Models

RCMN-19V540-2034.pdf 319.879KB

 

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Recall 573 Report – AMENDMENT 1

RCLRPT-19V540-5255.PDF 237.791KB

 

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Remedy Instructions and TSB

RCRIT-19V540-8664.pdf 161.578KB

 

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Recall 573 Report – Amendment 2

RCLRPT-19V540-5478.PDF 237.829KB

 

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Recall Quarterly Report #1, 2019-3

RCLQRT-19V540-0164.PDF 211.142KB

 

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Recall Quarterly Report #4, 2020-2

RCLQRT-19V540-4996.PDF 211.438KB

 

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=19V540&docType=RCL

 

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Mercedes-Benz Reprogramming

J2534 Pass-Thru

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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www.startekinfo.com

 

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Last update on 2025-04-16 / Affiliate links / Images from Amazon Product Advertising API

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