Mercedes-Benz AMG GLC43 2022–2023 — technical service bulletin
Bulletin LI82.62-P-076756 · NHTSA communication 10240159 · issued Jul 28, 2023
Technical service bulletin
communication type
Equipment
component
2022–2023
model years
7
vehicle entries
Official summary
Perceptible volume jumps at 15 and 10 mph. When reducing the speed of the vehicle, the volume is reduced in clearly perceptible jumps. This is particularly perceptible at a moderate basic volume (i.e. lower than typical levels of household noise). Software in sound control unit SND7 (N40/3) Currently no remedy available. Replacing the hardware will not remedy the problem! Remedy will be available with next software version for sound control unit (Q4/2023)
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.