Mercedes-Benz S 500 2022 — technical service bulletin
Bulletin LI32.50-P-074278 · NHTSA communication 10207194 · issued Jan 27, 2022
Technical service bulletin
communication type
Suspension
component
2022
model years
3
vehicle entries
Official summary
Complaint Warning display message for eSuspension. Cause Various causes are possible. Remedy A general replacement of eABC components - MPE/EHSE (motor pump unit/electrohydraulic high-pressure pump) or suspension struts is not useful. First check and update AFW control unit N51/8 and the four EHSE pump units M67, M67/1, M67/2 and M67/3 with new software. If this does not resolve the issue, then create a PTSS case and attach the following: - Logs for control units N51/8, M67, M67/1, M67/2 and M67/3 with fault freeze frame data. - Actual values for the pressures of the four hydraulic high-pressu
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.