11 31 090 

Release chain tensioner (1).
Tightening torque 11 31 7AZ.


Have a cleaning cloth ready. A small quantity of engine oil will emerge after the screw connection has been released.

Make sure no engine oil runs onto belt drive.

Installation note:

Replace sealing ring.

If the chain tensioner is reused, its oil chamber must be drained. Place chain tensioner on a level support and slowly compress.

Repeat process twice.
Assemble engine.