Mercedes-Benz AMG C43 2023 — service campaign
Bulletin NCU - 2025030013 · NHTSA communication 11016153 · issued Mar 28, 2025
Service campaign
communication type
Power Train
component
2023
model years
10
vehicle entries
Official summary
Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the powertrain control unit software does not correspond to current production specifications. Consequently, there is a risk that the 48V battery may not charge due to an implausible state-of-charge in the powertrain control unit. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the powertrain control unit software.
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.