Clutch Release Bearing: Service and Repair

21 51 500 - Removing and installing or replacing clutch release bearing/lever

Note:
(transmission removed)





New version (except M models)
Release bearing and release lever have been combined to form a single release module.
Do not disassemble the release module. Otherwise there is a risk of the release module being incorrectly reassembled.





Installation:
Make sure that the correct cam (1) of the release bearing is on the sliding surface (2) of the release lever.
The positioning in relation to each other is identified by white dots on the cam (1) and the sliding surface (2).

Note:
Do not grease sliding surfaces (2).





Fig. A: Cam (1) of release bearing (A=12 mm) is on sliding surface of release lever.
Version: 4-cylinder petrol/gasoline engines.
Fig. B: Cam (1) of release bearing (A=7 mm) is on sliding surface of release lever.
Version: 6-cylinder petrol/gasoline engines and diesel engines.





Remove release module (1) from spring wire clip.
Remove release module.





Withdraw release lever (4) from spring wire clip (5) and remove.

Installation Note:
Clean release lever.

Note:
Illustration similar.





Installation Note:
Check spring wire clip (5) and ball pin (6) for damage and replace if necessary.
Apply a thin coating of grease to ball pin (6).
Grease, refer to BMW Service Operating Fluids.
Illustration similar.





Clean guide sleeve (7).

Installation:
Do not grease guide sleeve.
If guide sleeve is greased, the release lever can stick on the guide sleeve.

Note:
Illustration similar.