Mercedes-Benz AMG C43 2021–2024 — technical service bulletin

Bulletin OTA - 25P5497844 · NHTSA communication 11020674 · issued Jul 11, 2025

Technical service bulletin

communication type

Electrical System

component

2021–2024

model years

vehicle entries

Official summary

Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the instrument cluster software does not correspond to current production specifications. MBUSA will conduct an OTA service campaign. The instrument cluster will receive an OTA software update that increases the robustness and system stability for the instrument cluster as well as the head-up display. Additionally, the software update allows for the “Automatic Lane Change” function to be installed via a subsequent software update and modifies the acoustic warning of the “Traffic Sign

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.