May 28, 2024 NHTSA CAMPAIGN NUMBER: 24V372000
High-Voltage Battery May Shutdown Unexpectedly
A sudden loss of drive power increases the risk of a crash.
NHTSA Campaign Number: 24V372
Manufacturer Mercedes-Benz
USA, LLC
Components ELECTRICAL SYSTEM
Potential Number of Units Affected 14,912
Summary
Mercedes-Benz
USA, LLC (MBUSA) is recalling certain 2024 EQE 350 4MATIC, EQE 350+, EQE 500 4MATIC, EQS 450 4MATIC, EQS 450+, EQS 580 4MATIC, AMG EQE 53 4MATIC, AMG EQS 53 4MATIC, 2023-2025 EQE SUV 350 4MATIC, EQE SUV 350+, EQE SUV 500 4MATIC, EQS SUV 450 4MATIC, EQS SUV 450+, EQS SUV 580 4MATIC, 2024-2025 EQS SUV 680 4MATIC, and AMG EQE SUV 53 4MATIC vehicles. The battery management system software may cause the high-voltage battery to shut down, which can result in a sudden loss of drive power.
Remedy
Dealers will update the battery management system software, free of charge. Owner notification letters are expected to be mailed July 23, 2024. Owners may contact MBUSA customer service at 1-800-367-6372.
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
Mercedes-Benz
Part 573 Submission
Submitted to Portal May 24, 2024
Chronology-Only section
Chronology of Defect/Noncompliance Determination Supplement for ODI 22-00855-31051-10
In October 2023, MBAG investigated a single field report from a Mercedes-Benz
dealership in Denmark describing a warning message in the new vehicle’s instrument cluster related to the high voltage battery system that appeared prior to delivery of the vehicle to the customer. In November 2023, MBAG received a report alleging reduced drive power with a similar warning message in the US. In parallel, MBAG conducted further investigations of the described occurrences. MBAG initially hypothesized that the reported occurrences might stem from a fault in the battery management system of the high-voltage battery. However, further analyses showed that if the battery management system in certain vehicle models received an extraordinarily high volume of diagnostic requests from the vehicle’s control units, the module’s memory could be overloaded. In that event, the battery control module would re-set, in accordance with the design specifications. Between December 2023 and April 2024, MBAG conducted further investigations to determine the conditions and circumstances that might trigger a high volume of diagnostic requests from the control modules. This investigation has not identified any initial functional defect in software of those control units. However further testing indicated that a diagnostic data overflow to the battery management system could result in reduced power output or, in rare circumstances, a loss of propulsion.
The cause was narrowed down to various control units that were installed starting with change year 2023/1. Based on this knowledge, the known field cases were re-examined in April 2024. According to the results of the analysis the vehicles from all known field cases were produced after the referenced change year. Based on this finding, in May 2024 MBAG reviewed production records to determine the potentially affected vehicle population. On May 17, 2024, MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a recall.
MBAG is currently aware of 17 field reports received from December 11, 2023 to March 26, 2024 in the US. MBAG is aware of no other information (such as the numbers of deaths and/or injuries) related to this defect in the USA.
30 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| MERCEDES-BENZ | AMG EQE 53 4MATIC | 2024 |
| MERCEDES-BENZ | AMG EQE SUV 53 4MATIC | 2024-2025 |
| MERCEDES-BENZ | AMG EQS 53 4MATIC | 2024 |
| MERCEDES-BENZ | EQE 350 4MATIC | 2024 |
| MERCEDES-BENZ | EQE 350+ | 2024 |
| MERCEDES-BENZ | EQE 500 | 2024 |
| MERCEDES-BENZ | EQE SUV 350 4MATIC | 2023-2025 |
| MERCEDES-BENZ | EQE SUV 350+ | 2023-2025 |
| MERCEDES-BENZ | EQE SUV 500 4MATIC | 2023-2025 |
| MERCEDES-BENZ | EQS 450 | 2024 |
| MERCEDES-BENZ | EQS 450+ | 2024 |
| MERCEDES-BENZ | EQS 580 | 2024 |
| MERCEDES-BENZ | EQS SUV 450 4MATIC | 2023-2025 |
| MERCEDES-BENZ | EQS SUV 450+ | 2023-2025 |
| MERCEDES-BENZ | EQS SUV 580 4MATIC | 2023-2025 |
| MERCEDES-MAYBACH | EQS SUV 680 4MATIC | 2024-2025 |
3 Associated Documents
Recall 573 Report
RCLRPT-24V372-1533.PDF 223.951KB
Recall Acknowledgement
RCAK-24V372-9460.pdf 645.634KB
Chronology
RMISC-24V372-0984.pdf 128.441KB
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SEOCONTENT-START
OMB Control No.: 2127-0004
Part 573 Safety Recall Report 24V-372
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Mercedes-Benz
USA, LLC MAY 24, 2024 NHTSA Recall No. : 24V-372 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 : 14,912 Estimated percentage with defect : 100 %
Vehicle Information :
Vehicle 1 : 2024-2024 Mercedes-Benz
EQE 350 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : NR
Descriptive Information : Mercedes-Benz
2024 EQE 350 4MATIC 1705 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2025 Mercedes-Benz
EQE SUV 350 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : NR
Descriptive Information : Mercedes-Benz
2023-2025 EQE SUV 350 4MATIC 3599 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 24V-372 Page 2 Vehicle 3 : 2024-2024 Mercedes-Benz
EQE 350+ Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : NR
Descriptive Information : Mercedes-Benz
2024 EQE 350+ 1359 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 4 : 2023-2025 Mercedes-Benz
EQE SUV 350+ Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : NR
Descriptive Information : Mercedes-Benz
2023-2025 EQE SUV 350+ 1340 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2024-2024 Mercedes-Benz
EQE 500 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : NR
Descriptive Information : Mercedes-Benz
2024 EQE 500 4MATIC 349 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 6 : 2023-2025 Mercedes-Benz
EQE SUV 500 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : NR
Descriptive Information : Mercedes-Benz
2023-2025 EQE SUV 500 4MATIC 876 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-372 Page 3 Vehicle 7 : 2024-2024 Mercedes-Benz
EQS 450 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : NR
Descriptive Information : Mercedes-Benz
2024 EQS 450 4MATIC 667 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 8 : 2023-2025 Mercedes-Benz
EQS SUV 450 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : NR
Descriptive Information : Mercedes-Benz
2023-2025 EQS SUV 450 4MATIC 683 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 9 : 2024-2024 Mercedes-Benz
EQS 450+ Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : NR
Descriptive Information : Mercedes-Benz
2024 EQS 450+ 509 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 10 : 2023-2025 Mercedes-Benz
EQS SUV 450+ Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : NR
Descriptive Information : Mercedes-Benz
2023-2025 EQS SUV 450+ 551 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-372 Page 4 Vehicle 11 : 2024-2024 Mercedes-Benz
EQS 580 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : NR
Descriptive Information : Mercedes-Benz
2024 EQS 580 4MATIC 417 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 12 : 2023-2025 Mercedes-Benz
EQS SUV 580 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : NR
Descriptive Information : Mercedes-Benz
2023-2025 EQS SUV 580 4MATIC 1131 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 13 : 2024-2025 Mercedes-Benz
Maybach
EQS SUV 680 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : NR
Descriptive Information : Mercedes-Benz
2024-2025 Maybach
EQS SUV 680 4MATIC 409 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 11, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 14 : 2024-2024 Mercedes-Benz
Mercedes-AMG EQE 53 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : NR
Descriptive Information : Mercedes-Benz
2024 Mercedes-AMG EQE 53 4MATIC 131 vehicles, The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential
The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-372 Page 5 Vehicle 15 : 2024-2025 Mercedes-Benz
Mercedes-AMG EQE SUV 53 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : NR
Descriptive Information : Mercedes-Benz
2024 Mercedes-AMG EQE SUV 53 4MATIC 958 vehicles, The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 16 : 2024-2024 Mercedes-Benz
Mercedes-AMG EQS 53 4MATIC Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : NR
Descriptive Information : Mercedes-Benz
2024 Mercedes-AMG EQS 53 4MATIC 228 vehicles, The recall population was determined through production records. Vehicles outside of the recall population have battery management system software that meets current production specifications.
Production Dates : FEB 01, 2023 – MAY 11, 2024
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : Mercedes-Benz
AG (“MBAG”), the manufacturer of Mercedes-Benz
vehicles, has determined that on certain Model Year (“MY”) 2023-2025 EQE SUV (294 platform), EQE (295 platform), EQS SUV (296 platform) and EQS (297 platform) vehicles, the battery management system software might not meet current production specifications and may lead to a shutdown of the high- voltage system in specific situations.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : In this case, the contactors of the high-voltage battery might open, potentially resulting in a loss of propulsion without prior warning. As a consequence the risk of a crash might increase. When the vehicle comes to a standstill it can be restarted.
Description of the Cause : Due to a deviation in the software development process, continuous diagnostic requests from other control units might overload the memory capacity of the battery management system. Identification of Any Warning
that can Occur : The driver will not receive a warning due to the nature of the failure mechanism. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-372 Page 6 Involved Components : Component Name 1 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899021705 Component Name 2 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899023905 Component Name 3 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899024005 Component Name 4 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899024605 Component Name 5 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899024705 Component Name 6 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899024805 Component Name 7 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899025405 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-372 Page 7 Component Name 8 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899025505 Component Name 9 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899027104 Component Name 10 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899028604 Component Name 11 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899028704 Component Name 12 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899028804 Component Name 13 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899029104 Component Name 14 : SW BAT.MGMT Component Description : SW BAT.MGMT Component Part Number : A7899029204 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-372 Page 8 Supplier Identification : Component Manufacturer
Name : MBAG Address : NR
NR
Country : NR Chronology :
In October 2023, MBAG investigated a single field report from a Mercedes-Benz
dealership in Denmark describing a warning message in the new vehicle’s instrument cluster related to the high voltage battery system that appeared prior to delivery of the vehicle to the customer. In November 2023, MBAG received a report alleging reduced drive power with a similar warning message in the US. In parallel, MBAG conducted further investigations of the described occurrences. MBAG initially hypothesized that the reported occurrences might stem from a fault in the battery management system of the high-voltage battery. However, further analyses showed that if the battery management system in certain vehicle models received an extraordinarily high volume of diagnostic requests from the vehicle’s control units, the module’s memory could be overloaded. In that event, the battery control module would re-set, in accordance with the design specifications. Between December 2023 and April 2024, MBAG conducted further investigations to determine the conditions and circumstances that might trigger a high volume of diagnostic requests from the control modules. This investigation has not identified any initial functional defect in software of those control units. However further testing indicated that a diagnostic data overflow to the battery management system could result in reduced power output or, in rare circumstances, a loss of propulsion.
The cause was narrowed down to various control units that were installed starting with change year 2023/1. Based on this knowledge, the known field cases were re-examined in April 2024. According to the results of the analysis the vehicles from all known field cases were produced after the referenced change year. Based on this finding, in May 2024 MBAG reviewed production records to determine the potentially affected vehicle population. See chronology supplement Description of Remedy :
Description of Remedy Program : An authorized Mercedes-Benz
dealer will update the battery management
system software on the potentially affected vehicles. How Remedy Component Differs from Recalled Component : 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.
Vehicles outside of the recall population have battery management system software that meets current production specifications. Remedy Part No: The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-372
Page 9
The information contained in this report was submitted pursuant to 49 CFR §573
SW BAT.MGMTA7899021906 SW BAT.MGMTA7899026305 SW BAT.MGMTA7899026405 SW BAT.MGMTA7899027005 SW BAT.MGMTA7899027105 SW BAT.MGMTA7899027205 SW BAT.MGMTA7899022006 SW BAT.MGMTA7899022106 SW BAT.MGMTA7899026305 SW BAT.MGMTA7899027005 SW BAT.MGMTA7899027105 SW BAT.MGMTA7899026005 SW BAT.MGMTA7899026705 SW BAT.MGMTA7899026805
Identify How/When Recall Condition was Corrected in Production :
A change in the development process ensures that this issue can no longer occur from May 13, 2024 onwards. Recall Schedule :
Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on June
3, 2024. Owners will be notified of the voluntary recall campaign before July 23, 2024. A copy of all communications will be provided when available.
Planned Dealer Notification Date : JUN 03, 2024 – NR Planned Owner Notification Date : JUL 23, 2024 – NR
* NR – Not Reported
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