Mercedes EQB 2022–2023 — technical service bulletin
Bulletin LI08.10-P-075764 · NHTSA communication 10231022 · issued Jan 13, 2023
Technical service bulletin
communication type
Power Train
component
2022–2023
model years
8
vehicle entries
Official summary
Complaint Noises when reversing slowly < 4 mph (squeaking) Cause There is a seal in the electric drivetrain that seals off the coolant system from the electric motor. This seal is moistened with coolant during forward travel. As a result of the change in rotational direction when reversing slowly, it may be the case that this sealing ring is no longer moistened. Squeaking noises may occur as a result of the so-called "stick-slip effect". This behavior does not impact the function or durability of the sealing ring and electric drivetrain. Remedy Do not replace any parts. Explain the cause of th
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.