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February 25, 2022 Service bulletin

Brake squeal from front axle when braking to a standstill

Mercedes-Benz technical service bulletin LI42.15-P-074455 for 2020-2021 Mercedes-Benz CLA250, 2019-2022 Mercedes-Benz A 220 and 2020-2022 Mercedes-Benz AMG Cla45 and others.

Bulletin number
LI42.15-P-074455
Component
Service brakes, hydraulic
Summary
Complaint Brake squeal from front axle when braking to a standstill. Cause Frictional vibrations between brake lining and brake disk. There is no impact to braking capabilities. Remedy Order and replace A0004202306 Linings of front axle as per parts catalog. It is not necessary to replace the brake disks; see also LI "Brake noises on AMG - vehicles" in design group 42.10.

Owners of these vehicles have filed 7 complaints in the brakes category.

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