Flywheel: Service and Repair

11 22 500 - Removing and installing or replacing flywheel (N51)





Special tools required:





Important!
Aluminium-magnesium materials.

No steel screws/bolts may be used due to the threat of electrochemical corrosion.

A magnesium crankcase requires aluminium screws/bolts exclusively.

Aluminium screws/bolts must be replaced each time they are released.

Aluminium screws/bolts are permitted with and without

colour coding (blue).

For reliable identification:

Aluminium screws/bolts are not magnetic.

Jointing torque and angle of rotation must be observed without fail (risk of damage).





Necessary preliminary tasks:
- Remove transmission.
- Remove clutch Service and Repair.





Block flywheel (1) with special tool 11 9 260, use an old transmission screw for this purpose.

Installation Note:
Replace aluminium screws.

Unfasten flywheel screws.

Tightening torque: 11 22 1AZ. [1][2][3]11 22 Flywheel

Installation Note:
Flywheel (1) is secured with an alignment pin.

Fit new flywheel screws.

Clean crankshaft thread for flywheel screws.





Secure flywheel with an old transmission screw (1) and special tools 11 9 260 and 11 9 265.

Installation Note:
Replace aluminium screws.

Release flywheel screws with special tool 11 4 180.

Installation Note:
Flywheel is secured with a dowel pin.

Fit new flywheel screws.

Tightening torque: 11 22 2AZ. [1][2][3]11 22 Flywheel





Assemble engine.