Removing and Installing/Replacing Friction Gear

11 28 035 Removing and installing/replacing friction gear (N18)

Special tools required:







Necessary preliminary tasks:
- Remove right wheel arch cover Service and Repair

Pull out friction gear with mechanical unlocking (3) in direction of arrow and lock on locking hook.
Friction gear (1) lifts mechanically off belt drive.







Disconnect plug connection (2) on friction gear.

NOTE: Picture shows friction gear removed.







Move friction gear (2) into service position with max. 50 N.
To secure friction gear in service position, suspend tensioning strap (1) on housing (2).







Secure belt pulley of coolant pump with an oil filter strap (1).
Undo bolts (2) with special tool 11 9 581 and 11 9 583.
Tightening torque: 11 51 2AZ.







Undo bolts (1) with special tool 11 9 583 and 11 9 581.

NOTE: Drive belt does not have to be removed.







Remove friction gear (1) towards bottom.
Disconnect plug connection (2).







Installation note:
Bolt down friction gear in sequence 1 to 3
Tightening torque: 9 Nm.

Installation note:
Slowly retract tensioning strap (1) in direction of arrow.







Plastic ring (2) must engage in friction gear housing.







Assemble engine.

Installation note:
Check cable routing for correct installation position (risk of damage.).