Mercedes-Benz AMG C43 2020 — technical service bulletin
Bulletin LI32.25-P-061137 · NHTSA communication 10207190 · issued Jan 6, 2022
Technical service bulletin
communication type
Suspension
component
2020
model years
4
vehicle entries
Official summary
Clunking noises on rough roads. especially during short strokes of the damper. Attachments File Description MRA rear noise check.MP3 Noise complaints - Clunking Cause Damage to the thread on the piston in the damper, because of which the piston is not screwed in correctly and can cause noises. Remedy Locate the affected suspension strut or shock absorber by performing a test drive on rough roads. Replace the affected suspension strut or damper.
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.