Remove the auto-tensioner.
Remove the tensioner pulley.

Install the tensioner pulley in the reverse order of removal.
Install the auto-tensioner.
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 ...
Instruments and Controls
This section gives information about the controls and displays that contribute
to the daily operation of your vehicle. All the essential controls are within easy
reach. ...
Driving to Your Destination
This section describes how to follow the route guidance to your destination,
and
choose the icons displayed on the map screen. ...