Mercedes-Benz C 300 2022–2024 — technical service bulletin
Bulletin LI07.70-P-078547 · NHTSA communication 11009552 · issued Nov 1, 2024
Technical service bulletin
communication type
Engine
component
2022–2024
model years
7
vehicle entries
Official summary
Complaint Engine idle fluctuates or stumbles at approximately 5-10 second intervals. No relevant fault codes are stored. Cause Under analysis Remedy Do not replace parts or perform control unit software updates/adaptations. Create a TIPS case and submit to the powertrain team with the below information: -Video showing the tachometer or actual values from XENTRY diagnosis when symptom present -Quick test -N3/10 MRG2 control unit log -N73/3 EZS control unit log
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.