Drive Belt Tensioner: Service and Repair

Removing alternator drive belt, refer to Drive Belt, Alternator, Service and Repair.
Remove the belt wheel of the vane pump.





Caution:
The bolt connection (1) of the pulley for the tensioning device for the drive belt has left-hand thread and is peened.
Only change the pulley in conjunction with the tensioning device for the drive belt.





Loosen screws (1).
Loosen the screws (2) and remove with the tensioning device for the drive belt.

Note: If the screw (2) is inaccessible because of the lug (3), lock the tensioning device for the drive belt using Special Tool 11 3 340.





If necessary, apply preload to the tensioning device for the drive belt on the pulley as far as possible and lock with Special Tool 11 3 340.

Caution: The tensioning device for the drive belt is under high spring pressure.

Press Special Tool 11 3 340 in as far as possible.





Unfasten screws (1 and 2).
Remove the tensioning device for the drive belt.