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Home >> BMW >> 2015 >> Z4 sDrive28i, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 318 (Clutch - Repair (N54)) >> 2151 cLUTCH RELEASE CONTROLLER WITH LEVER >> 21 51 500 Removing and installing or replacing clutch release bearing/lever

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

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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.

NOTE: Do not grease sliding surfaces (2).
Fig 1: Identifying Release Bearing And Lever Surface
G05502328Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Cam (1) of release

bearing (A=12 mm) is on sliding surface of release lever.

Version: 4-cylinder petrol/gasoline engines.

Fig 2: Cam (1) of release bearing (A=7 mm) is on sliding surface of release lever.

Version: 6-cylinder petrol/gasoline engines and diesel engines.

Fig 2: Identifying Release Bearing And Lever Surface
G05502329Courtesy of BMW OF NORTH AMERICA, INC.

Remove release module (1) from spring wire clip.

Remove release module.

Fig 3: Removing Release Module From Spring Wire Clip
G05502330Courtesy of BMW OF NORTH AMERICA, INC.

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

Installation: 

Clean release lever.

NOTE: Illustration similar.
Fig 4: Removing Release Lever From Spring Wire Clip
G04725952Courtesy of BMW OF NORTH AMERICA, INC.

Installation 

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 CLUTCH - OPERATING FLUIDS .

Illustration similar.

Fig 5: Identifying Spring Wire Clip And Ball Pin
G04725954Courtesy of BMW OF NORTH AMERICA, INC.

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.
Fig 6: Identifying Guide Sleeve
G04725955Courtesy of BMW OF NORTH AMERICA, INC.