Legally reviewed by: Jessica Anvar Stotz, JD, MBA

mercedes benz transmission recall

Mercedes-Benz is set to recall over 100,000 vehicles due to an issue involving an improperly secured 48-volt ground connection, as reported by the U.S. National Highway Traffic Safety Administration (NHTSA) on Wednesday. This marks the latest in a series of recalls by the renowned German automaker over the past month. Fortunately, there have been no reported crashes or injuries attributed to this defect, according to Mercedes-Benz. The manufacturer will contact affected drivers starting April 16, 2024.

Recall InformationDetails
Total Vehicles Recalled105,071 potentially involved vehicles
Description of NoncomplianceCertain 2020–2023 GLE/GLS vehicles (167 platform) equipped with the 6-cylinder gasoline engine and 9-speed transmission, the transmission control unit software might not meet current production specifications.
Mercedes Benz Contact Number1-877-496-3691
NHTSA Recall Number24V-118
Manufacturer Recall NumberNR
Owner Notification LettersApril 16, 2024

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    Last year alone, Mercedes-Benz recalled a staggering 478,175 vehicles in the U.S., according to data from the NHTSA. Across various brands, the total recall population for 2023 totaled over 23.7 million vehicles.

    What is wrong with the Mercedes Benz Transmission?

    The engine may stall if the downshift from seventh to sixth gear is not completed while the vehicle is being gently braking simultaneously and there are other conditions (such as an aborted shift operation, low transmission oil temperature, or simultaneous recovery by the 48V starter-alternator). This may result in the car losing power and increases the possibility of an accident. The engine can be started again once the car comes to a stop.

    What’s Included in the 2024 Mercedes Transmission Recall

    The 2024 Mercedes Transmission recall pertains to select Mercedes-Benz models, including GLE and GLS vehicles from the 2020 to 2023 model years. These vehicles are equipped with a loose 48-volt ground connection, specifically wiring linked to the negative terminal on a battery, situated beneath the passenger seat.

    The issue with Mercedes Benz transmission arises during a specific downshifting scenario from 7th to 6th gear. If this downshift isn’t fully completed while the vehicle experiences slight braking and certain additional conditions occur (such as an aborted shift operation, low transmission oil temperature, or simultaneous recuperation by the 48V starter-alternator), it can result in engine stalling. Consequently, the vehicle loses propulsion, potentially increasing the risk of a crash.

    The vehicle’s steering and braking systems can remain fully operational even when the vehicle’s engine is stalling. This ensures that drivers retain control over steering and braking, mitigating the severity of potential accidents. Once the vehicle comes to a standstill, the engine can be restarted.

    mercedes transmission recall info

    What’s NOT Included in the 2024 Mercedes Transmission Recall

    The recall population was determined through examination of production records. Vehicles outside of the recall population have transmission control unit software that meets current production specifications.

    If your vehicle is not included in the recall, this means that its transmission control unit software aligns with the latest production standards. Essentially, this indicates that your vehicle meets the current specifications for transmission performance and reliability.

    To confirm whether your vehicle is part of the recall or not, we recommend using the NHTSA’s recall check tool. This online resource allows you to enter your vehicle’s VIN (Vehicle Identification Number) to verify its recall status, ensuring that you stay informed about any potential safety issues affecting your vehicle.

    How do you Fix the Transmission Problem?

    Affected customers can address the transmission problem by visiting authorized Mercedes-Benz dealerships. Technicians will conduct a comprehensive inspection and rectify the issue by tightening the wiring at absolutely no charge. Authorized dealerships will proceed with updating the transmission control unit software in potentially affected vehicles.

    To comply with regulations outlined in 49 C.F.R. § 577.11, Mercedes-Benz USA (MBUSA) plans to notify owners regarding prenotice reimbursement, especially for vehicles that may have previously experienced the described condition. Dealerships were notified about the upcoming voluntary recall campaign on February 23, 2024. In a technical service bulletin (TSB) to dealerships, Mercedes-Benz offered the following instructions to update your vehicle’s Transmission Control software if you encounter transmission problems:

    • Always use the most recent XENTRY Diagnosis software release, including any available add-ons.
    • Complete the operation procedures exactly as specified in XENTRY Diagnosis.
    • Use a charger to deliver enough power to the vehicle’s on-board electrical battery system (more than 12.5 V).
    • If XENTRY Diagnosis is already connected to the car, begin with the Work Procedure.
    • If two or more software updates or SCN codings are executed during the same workshop visit, operation items 02-4762 and 02-5058 may be charged on only one of the workshop orders.

    Work Procedure

    1. Connect XENTRY Diagnosis.
    2. Upgrade the transmission control unit software to support 9-speed transmission (completely integrated transmission control). To do this, click the menu option ‘Quick test view → Y3/8 – transmission control for 9-speed transmission (completely integrated transmission control) – Intelligent Predictive Repair – Maintenance → Adaptations → Control unit update → Update of control unit software.’ Then follow the user instructions in XENTRY Diagnosis.

    Get Help from the Experts in Mercedes Benz Lemon Law

    Mercedes-Benz has recently issued multiple recalls, including one for over 105,000 GLE and GLS vehicles due to a faulty transmission, potentially leading to engine stalling and increased crash risks. Additionally, nearly 32,000 vehicles have also been recalled for a defective fuse causing sudden power loss or loss of critical safety functions.

    If you are experiencing ongoing transmission issues with a Mercedes-Benz vehicle purchased or leased in California, it may qualify as a “lemon” under the state’s Lemon Law. This legislation protects consumers who face persistent problems with new or pre-owned vehicles that the manufacturer can’t resolve. California’s Lemon Law covers both new and used vehicles under the manufacturer’s warranty, offering consumers options for replacement or refund if their vehicle is deemed a lemon.

    The Lemon Law Experts specialize in representing consumers dealing with defective vehicles, including Mercedes-Benz models.  Our team possesses comprehensive knowledge of these laws and can guide you through the process of seeking a favorable resolution for your case, as we have for millions of consumers across California. If you suspect your vehicle is a lemon, contact the Lemon Law Experts today for a free, no-obligation case analysis.