Mercedes-Benz AMG C43 2023–2025 — technical service bulletin

Bulletin LI91.10-P-079346 · NHTSA communication 11021154 · issued Jul 31, 2025

Technical service bulletin

communication type

Seats

component

2023–2025

model years

vehicle entries

Official summary

Complaint The customer complains about squeaking/creaking noises on uneven roadways, on bends or when moving in their seat. Cause Noise in the backrest adjustment mechanism Remedy The adjustment mechanism is treated with dry lubricant spray A000 989 35 60 to rectify the noise. To do this, proceed as follows: • Move the seat to the front position and put the backrest into a lying position. • Due to the risk of soiling on the left and right under the adjustment mechanism, cover and protect the area. • Spray into the gap of the left and right adjustment mechanism with dry lubricant spray from abo

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.