Remove the auto-tensioner.
Remove the tensioner pulley.

Install the tensioner pulley in the reverse order of removal.
Install the auto-tensioner.
Locking/Unlocking the Doors from the Inside
Using the Lock Tab
■ Locking a door
Pull the lock tab rearward.
■ Unlocking a door
Push the lock tab forward.
Models with remote transmitter
When you lock the door using the lock ...
Rear Door Rear Sash Trim Replacement
NOTE: Take care not to scratch the door or related parts.
Remove the door quarter inner trim.
Remove the screw securing the trim to the door quarter.
...
Mercedes-Benz C-Class Coupe review
The Mercedes C-Class Coupe encapsulates all the excellence of the sedan, packaged in an attractive exterior. Discover why it stands out as one of the most desirable mid-size coupes with our expert r ...