In the event of an independent hardware failure, the lambda control in the Engine Control Unit (ECU) software can erroneously increase the amount of injected fuel during cylinder deactivation. As a result, exhaust temperatures can increase and this can damage surrounding components (e.g. engine wiring harness, catalytic converter). This can create an unexpected loss of propulsion, increasing the risk of accidents and injuries. Moreover, this can increase the risk of fire. In addition, local statutory exhaust emission limits could be exceeded.
The Mercedes-Benz S-Class vehicles affected by this recall were manufactured between 30 June 2020 and 19 September 2023.
Products were found and measures were taken also in
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Published by Rapex
13/12/2024
This notification is purely informative for the vehicle type you have selected. As these deficiencies often relate to specific components (engine type, bodywork, equipment), the recall may not apply to all vehicles of this type. For more detailed information on possible recalls for your vehicle, please get in touch with an authorised workshop (see below at "What the owner should do?").
What should an owner do if there's a recall?
Please note that the recall may not apply to all vehicles produced in a given period. If you think your car might be affected, you should immediately contact a Mercedes-Benz dealer or workshop officially authorised to perform repairs on behalf of the manufacturer and ask for the details. You can use our sample request text. After reporting the vehicle's VIN code, you will find out if the defect is present on your car, or if it has already been resolved by the previous owner if the car was purchased second-hand.
If you wish to know more about the eventual problems of a specific car (e.g. real mileage, potential traffic accident damages, odometer rollback, repairs, etc.), in that case, we suggest going to this page.
Currently 5157 Recalls