Mercedes-Benz AMG C43 2023–2024 — service campaign
Bulletin NCU - 2025040004 · NHTSA communication 11017220 · issued Apr 17, 2025
Service campaign
communication type
Electrical System
component
2023–2024
model years
15
vehicle entries
Official summary
Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the engine control unit software may not correspond with current production specifications. There is a possibility that the dynamic driving profile may not be accurately calculated, which could possibly lead to an unsuccessful diagnostic routine for the lambda sensors. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the engine control unit software.
Vehicles covered
- 2023 Mercedes-Benz AMG C43
- 2024 Mercedes-Benz AMG C43
- 2023 Mercedes-Benz AMG C43 4MATIC
- 2023 Mercedes-Benz AMG C63 S
- 2023 Mercedes-Benz AMG C63 S E
- 2024 Mercedes-Benz AMG C63 S E
- 2023 Mercedes-Benz AMG SL43
- 2024 Mercedes-Benz AMG SL43
- 2024 Mercedes-Benz AMG SL53E
- 2023 Mercedes-Benz AMG SL55
- 2023 Mercedes-Benz AMG SL55 4MATIC+
- 2023 Mercedes-Benz AMG SL63
- 2024 Mercedes-Benz AMG SL63 S E
- 2023 Mercedes-Benz C 300
- 2024 Mercedes-Benz C 300
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.