23 42 561 Replacing clutch actuator GS6S53BZ (SMG)

WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Before working on hydraulic system:

Reduce pressure in hydraulic system by means of Service Function in DIS Tester
Disconnect hydraulic pump relay in electronics box

Do not reconnect relay for entire duration of repair work

NOTE: After completing work:

Check fluid level in hydraulic system by means of DIS Tester "Service Function" . See 21 53... CHECKING/TOPPING UP FLUID LEVEL IN HYDRAULIC SYSTEM (GS6S37BZ/GS6S53BZ/ SMG) .
Perform "Teach in transmission" service function by means of DIS Tester

Necessary preliminary tasks:

Remove underbody protection
Remove left heat shield

Unlock connector and remove.

Unlock and disconnect line (1).

Installation:

Replace sealing ring.

Release nuts (2) and remove clutch actuator (3).

Tightening torque 21 52 5AZ . See CLUTCH - TIGHTENING TORQUE .

Fig 1: Identifying Clutch Actuator And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: After completing work:

Check fluid level in hydraulic system by means of DIS Tester "Service Function". See 21 53... CHECKING/TOPPING UP FLUID LEVEL IN HYDRAULIC SYSTEM (GS6S37BZ/GS6S53BZ/ SMG) .
Perform "Teach in transmission" service function by means of DIS Tester