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Home >> BMW >> 2015 >> Z4 sDrive28i, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Clutch - Repair (N54) -- Z4_E89) >> Clutch Release Bearing And 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

WARNING: This page is about a different variant/trim than selected.
NOTE: (gearbox 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 note: 

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 Bearing And Lever Sliding Surface
G05502328Courtesy of BMW OF NORTH AMERICA, INC.

image A: Cam (1) of release bearing (A=12 mm)  is on sliding surface of release lever.

Type: N43, N45, N46 

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

Version for all other engines 

Fig 2: Checking Distance Between Release Bearing Cam And Release Lever Sliding 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 wire spring clip (5) and remove.

Installation note: 

Clean release lever.

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

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: Esso UNIREX S2, part number 83 23 9 416 138 (40 g tube).

Illustration similar.

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

Clean guide sleeve (7).

Installation note: 

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.