Mercedes-Benz AMG C43 2021–2025 — technical service bulletin

Bulletin OTA - 20250725 · NHTSA communication 11020951 · issued Jul 25, 2025

Technical service bulletin

communication type

Electrical System

component

2021–2025

model years

vehicle entries

Official summary

Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has updated driver assistance system software available for certain subject vehicles. The updated software improves system stability and enhances the robustness of the driver assistance system. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customer’s vehicle free of charge and do not require a dealer visit.

Vehicles covered

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.