1. Remove the splash shield (RH).
2. Turn the center of the tensioner pulley clockwise to release tension to the drive belt.

3. Remove the drive belt.
4. Reinstall the drive belt or install a new drive belt.
5. Verify that the drive belt auto tensioner indicator mark does not exceeds the limit. (See DRIVE BELT INSPECTION.)
6. Install the splash shield (RH).
Drive belt inspection
Drive belt auto tensioner inspectionMazda 6 Service Manual: Service procedure
Inspection, adjustment
Inspection and adjustment procedures are divided into steps. Important
points regarding the location and contents of the procedures are explained
in detail and shown in the illustrations.
Repair procedure
1. Most repair operations begin with an overview illustr ...
Mazda 6 Service Manual: Location index
INTAKE-AIR SYSTEM
FUEL SYSTEM
Engine Room Side
Fuel tank side
EMISSION SYSTEM
Engine room side
CONTROL SYSTEM
...