Tuesday, September 15, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

Mercedes-Benz AMG C43 2022–2026technical service bulletin

Bulletin LI54.30-P-078529 · NHTSA communication 11036105 · issued Aug 10, 2026

Technical service bulletin
communication type
Electrical System
component
2022–2026
model years
16
vehicle entries

Official summary

Complaint During cold starting, a tortoise symbol may be displayed in the event of reduced engine output. For "non-hybrid vehicles", the thermostat symbol must be displayed. Cause Coding N133/1 IC Instrument cluster Remedy Perform N133/1 IC-Instrument-Cluster manual coding.

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.