Mercedes-Benz AMG GLC43 2017 — technical service bulletin
Bulletin LI35.31-P-066469 · NHTSA communication 10144138 · issued May 24, 2018
Technical service bulletin
communication type
Power Train
component
2017
model years
3
vehicle entries
Official summary
Humming noises in drivetrain in area of rear axle when cornering
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.