Special tools required

WARNING: This page is about a different car, the 2010 BMW 650i, 2009 BMW 650i, 2008 BMW 650i, 2007 BMW 650i, and 2006 BMW 650i. 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 (BMW scan tool)
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. 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 (BMW scan tool)

Mount transmission (1) with special tool 23 0 170 n assembly stand.

Fig 1: Mounting Transmission Using Special Tool (23 0 170)

Courtesy of BMW OF NORTH AMERICA, INC.

Remove sealing cap (1) using a screwdriver (2).

Service opening must not be damaged. Burr can cause the sealing cap to leak.

Installation:

Replace sealing cap.

Fig 2: Removing Sealing Cap Using Screwdriver

Courtesy of BMW OF NORTH AMERICA, INC.

Release fitting screw (1).

Tightening torque 23 31 3AZ .

Installation:

Replace fitting screw (1).

Fig 3: Identifying Fitting Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Remove screws (1) and (2).

Tightening torque 23 41 1/7AZ .

Unlock and detach hydraulic lines (3).

Pull out shift actuator (4)

Installation:

Clean sealing surfaces.

Apply Loctite 574 sealing compound to sealing faces.

Fig 4: Identifying Shift Actuator With Screws And Hydraulic Line

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: After completing work:

Check fluid level in hydraulic system. 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 (BMW scan tool)