Mercedes-Benz EQS 450+ 2022–2025 — technical service bulletin
Bulletin LI08.10-P-076885 · NHTSA communication 11023137 · issued Sep 15, 2025
Technical service bulletin
communication type
Power Train
component
2022–2025
model years
6
vehicle entries
Official summary
Complaint High-frequency sound/high-frequency whistling at speeds between 100 km/h and 120 km/h (62-74 mph) or between 60 km/h and 80 km/h (37-50mph) Cause Noises of 26th engine order from the transmission gearing Remedy Replacing parts does not provide a remedy; the noise is state of the art
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.