Mercedes-Benz S 500 2022 — technical service bulletin
Bulletin LI32.50-P-074277 · NHTSA communication 10207193 · issued Jan 27, 2022
Technical service bulletin
communication type
Equipment
component
2022
model years
3
vehicle entries
Official summary
Complaint 1. Noises in recovery mode with the vehicle stationary 2. Noises when driving in a straight line on rough terrain 3. Noises when cornering and performing alternate steering movements 4. Non-assignable noises Cause Complaint 1. Noises in recovery mode with the vehicle stationary Complaint 2. Noises when driving in a straight line on rough terrain Cause: These are normal operating noises of the hydraulic high-pressure pumps. Remedy Generally check whether the same noises also occur in ECO mode - in this mode the Preview/ROAD SURFACE SCAN function is deactivated and the high-pressure pu
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.