21 21 500 Removing and installing/replacing clutch (SAC)

WARNING: This page is about a different car, the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, and 2007 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 9 260
11 9 263
11 9 264
11 9 265
21 2 141
21 2 170
21 2 180
21 2 201
21 2 230
21 2 250

Necessary preliminary tasks:

Remove transmission, see 23 00 019 REMOVING AND INSTALLING TRANSMISSION (GS6-37BZ N52K) .

Installation:

N52/N53

Screws must be replaced.

Jointing torque and angle of rotation must be observed without fail.

M54/M57/N52/N53/S54 only:

Block flywheel with special tools 11 9 260 and 11 9 265 .

Fig 1: Special Tools 11 9 260 And 11 9 265

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N62 only:

Block flywheel with special tools 11 9 260 , 11 9 263 and 11 9 264 .

Fig 2: Special Tools 11 9 260, 11 9 263 And 11 9 264

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Release screws and remove clutch from flywheel.

Installation:

Clean flywheel and check for wear and damage.

Replace damaged flywheel.

IMPORTANT: Always replace clutch plates fouled e.g. by oil, cleaning agent.

Fig 3: Locating Screws

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Observe the following procedure when installing the removed clutch and clutch plate.

Installation:

N52

Screws must be replaced.

Jointing torque and angle of rotation must be observed without fail.

Insert special tool 21 2 180 in clutch.

Press special tool 21 2 180 together at handles (1) as far as it will go and tighten down knurled screws (2).

Adjustment ring of clutch is now secured in its original position (wear position).

Fig 4: Special Tool 21 2 180 And Handles

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NOTE: Locking hooks (1) of special tool 21 2 180 must engage in openings of pressure spring.

Fig 5: Locking Hooks Of Special Tool 21 2 180

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Fit special tool 21 2 170 and tighten down at knurled screw (1).

Screw in spindle (2) until diaphragm spring (3) is tensioned on stop.

Fig 6: Special Tool 21 2 170, Spindle And Diaphragm Spring

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NOTE: Insert special tool 21 2 170 only in area of bores for dowel pins.

Centre clutch plate (1) with special tool in dual-mass flywheel.

IMPORTANT: Install clutch plate in correct position.
Note designation for "engine side" / "transmission side".
Handle clutch plate with care. Do not touch surfaces of friction linings.

Special tool Transmission

21 2 201 GS6-37BZ

21 2 230 GS6-53DZ/BZ

21 2 141 S5D 390Z

21 2 250 GS6-17BG

Fig 7: Clutch Plate And Special Tool

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Fit clutch (1) to flywheel.

Tightening torque: 1AZ, see 21 21 CLUTCH DISC AND DRIVE PLATE .

NOTE: Clutch (1) must be secured by way of dowel pins (2).

Fig 8: Clutch And Dowel Pins

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Release spindle (1) until load is fully removed from diaphragm spring. Remove special tools 21 2 170 and 21 2 180 .

Fig 9: Releasing Spindle

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Withdraw special tool from clutch plate with aid of accompanying screw (1).

Fig 10: Special Tool

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Installing removed clutch with new clutch plate:

Installation:

N52

Screws must be replaced.

Jointing torque and angle of rotation must be observed without fail.

IMPORTANT: Before installing a used clutch with a new clutch plate, always reset adjustment ring in new position.

Set clutch down on a clean surface.

Insert special tool 21 2 180 in clutch (1).

Fig 11: Special Tool 21 2 180 And Clutch

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NOTE: Locking hooks (1) of special tool 21 2 180 must engage in openings in clutch.

Fig 12: Locking Hooks Of Special Tool 21 2 180

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Fit special tool 21 2 170 and tighten down at knurled screw (1).

NOTE: Insert special tool 21 2 170 only in area of bores for dowel pins.

Fig 13: Special Tool 21 2 170, Spindle And Diaphragm Spring

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Screw in spindle (1) until adjustment ring of clutch (2) can be turned with special tool 21 2 180 at handles (3).

Press special tool 21 2 180 together at handles (3) as far as it will go and grip firmly.

At same time tighten down knurled screws (2).

Adjustment ring of clutch is now secured in new position.

Screw in spindle (1) until diaphragm spring is tensioned on stop.

Fig 14: Screwing In Spindle

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Centre clutch plate (1) with special tool.

IMPORTANT: Install clutch plate in correct position.
Note designation for "engine side" / "transmission side".

Handle clutch plate with care. Do not touch surfaces of friction linings.

Special tool Transmission

21 2 201 GS6-37BZ

21 2 230 GS6-53DZ/BZ

21 2 141 S5D 390Z

21 2 250 GS6-17BG

Fig 15: Clutch Plate And Special Tool

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Fit clutch (1) to flywheel.

Tightening torque: 1AZ, see 21 21 CLUTCH DISC AND DRIVE PLATE .

IMPORTANT: Clutch (1) must be secured by way of dowel pins (2).

Fig 16: Clutch And Dowel Pins

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Release spindle (1) until load is fully removed from diaphragm spring (2)

Remove special tools 21 2 170 and 21 2 180 .

Fig 17: Releasing Spindle

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Withdraw special tool from clutch plate with aid of accompanying screw (1).

Fig 18: Special Tool

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Installing new clutch

IMPORTANT: Locking piece may only be removed clutch is screwed down!

Installation:

N52

Screws must be replaced.

Jointing torque and angle of rotation must be observed without fail.

Centre clutch plate (1) with special tool.

IMPORTANT: Install clutch plate in correct position.
Note designation for "engine side" / "transmission side".
Handle clutch plate with care. Do not touch surfaces of friction linings.

Special tool Transmission

21 2 201 GS6-37BZ; GS 6-17BG

21 2 230 GS6-53DZ/BZ

21 2 141 S5D 390Z

21 2 250 GS6-17BG

Fig 19: Clutch Plate And Special Tool

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Fit clutch to flywheel.

Tightening torque: 1AZ, see 21 21 CLUTCH DISC AND DRIVE PLATE .

IMPORTANT: Clutch must be secured by way of dowel pins (1).

Fig 20: Dowel Pins

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Carefully unscrew locking piece (1) clockwise or counterclockwise with a 14 mm WAF hexagon socket wrench (2).

NOTE: A slight snapping of the plate spring while unscrewing the lock is possible.

Fig 21: Unscrewing Locking Piece Clockwise Or Counterclockwise

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Withdraw special tool from clutch plate with aid of accompanying screw (1).

Fig 22: Special Tool

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