21 52 500 Removing and installing/replacing clutch master cylinder

WARNING: This page is about a different car, the 2010 BMW M6, 2009 BMW M6, 2008 BMW M6, 2007 BMW M6, and 2006 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: After completing work, bleed clutch hydraulic system. See 21 00 006 Bleeding clutch hydraulic system .

Necessary preliminary tasks:

Remove trim panel for pedal assembly. See 51 45 185 REMOVING AND INSTALLING/REPLACING PANEL FOR PEDALS .
Remove microfilter housing on left. See 64 31 061 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT MICROFILTER HOUSING LOWER SECTION .
Remove light module. See 61 35 285 REMOVING AND INSTALLING (REPLACING) LIGHT MODULE .

Draw off brake fluid up to supply hose of clutch hydraulic system (1). For this purpose, use only a vacuum pipe that is exclusively used for removing brake fluid.

Detach supply hose (1) from expansion tank.

Fig 1: Identifying Expansion Tank Supply Hose

G04725957

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect spring (1).

NOTE: Illustration shows component removed.

Fig 2: Identifying Spring

G04957321

Courtesy of BMW OF NORTH AMERICA, INC.

Detach retainer (1) with a screwdriver (2).

NOTE: Do not foul carpet with brake fluid.

Detach hydraulic line from clutch master cylinder.

Fig 3: Removing Retainer Using Screwdriver

G04725960

Courtesy of BMW OF NORTH AMERICA, INC.

Remove retainer (1) using screwdriver and press out pin.

Fig 4: Identifying Retainer And Pin

G04957322

Courtesy of BMW OF NORTH AMERICA, INC.

Detach retainer (1) with a screwdriver (2).

NOTE: Do not foul carpet with brake fluid.

Detach hydraulic line from clutch master cylinder.

Fig 5: Identifying Hydraulic Line From Clutch Master Cylinder

G04725960

Courtesy of BMW OF NORTH AMERICA, INC.

Remove lock (1) from pin with aid of screwdriver (2).

Lever out pin (3) with aid of screwdriver.

Remove clutch master cylinder.

Installation:

Replace pin.

Press in pin until lock (1) can be seen to snap into place.

Fig 6: Identifying Lock And Pin

G04957324

Courtesy of BMW OF NORTH AMERICA, INC.

Detach supply hose (1) from clutch master cylinder.

IMPORTANT: Do not pull supply hose completely into interior.

Fig 7: Identifying Supply Hose From Clutch Master Cylinder

G04725961

Courtesy of BMW OF NORTH AMERICA, INC.

Lever out shift element (1) from clutch master cylinder (2) with screwdriver.

Release plug connection (3) and disconnect plug (4) from shift element (1).

Fig 8: Identifying Clutch Switch Module And Clutch Master Cylinder

G04753407

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Shift element is secured against incorrect installation.

Shift element must snap audibly into place.

Fig 9: Identifying Shift Element

G04725963

Courtesy of BMW OF NORTH AMERICA, INC.