How-To Tuesday: M112 and M113 Upper Pulley and Serpentine Belt Replacement
The C209 and A209 with the M112 and M113 engines have an upper pulley that usually starts to show wear around the 100,000 mile mark, give or take. In this how-to, I’ll show you how to replace it, and save yourself a trip to the dealer’s service drive.
By: Patrick Morgan | March 1, 2016