Serpentine belt replacement - MBWorld.org Forums

07-27-2023, 01:19 AM

#2

CaliBenzDriver

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MY'14 W212 M276 3.5NA @55kMi

BLT KIT

Quote:

Originally Posted by rumb

2014CLS500 105K miles, time to change the belt. Is it necessary to replace all the pulley also?

Yes, address this job at once with a repair kit:
serpentine BELT
belt TENSIONER
belt IDLERS

The tensioner develops a pigeon-hole, it is then unable to dynamically tension the long belt.
Wobly idler bearing are responsible for side to side belt motions.

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