24 00 023 Removing and installing automatic transmission (GA6HP26Z) (N63 engine, model years 2009 through 2012)

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750Li xDrive, and 2015 BMW 740Li xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

IMPORTANT:

After completing work, check TRANSMISSION OIL LEVEL .

Use only approved TRANSMISSION OIL .

Failure to comply with this instruction will result in serious damage to the transmission!

Necessary preliminary tasks:

Disconnect the BATTERY
Remove BOTH INTAKE FILTER HOUSINGS .
Remove EXHAUST SYSTEM .
Remove FRONT PROPELLER SHAFT .
REMOVE propeller shaft from transmission.
Release center mount.
Note:
Bending the propeller shaft by an excessive angle can cause premature damage to the joint/propeller shaft!
Tie up propeller shaft to underbody.
Support engine with lifter when removing transmission.

Release screws (1).

Remove cover (2).

Fig 1: Identifying Automatic Transmission Cover And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten ground strap (1).

Remove panels (2).

(Similar picture)

Fig 2: Identifying Earth Strap And Panels

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten nut.

Disconnect cable (1).

Installation note:

Unfasten nut.
Adjust cable by means of holder (2) until spacing A ≥ 1 mm is obtained.
Tighten nut.

Fig 3: Locating Cable Nut
Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) and remove crankshaft sensor.

Disengage cable from holder (2).

Detach connector (3) from oil pressure switch.

Fig 4: Identifying Cable Holder, Oil Pressure Switch Connector And Crankshaft Sensor Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove cover (2).

Tightening torque 24 00 1AZ .

Fig 5: Identifying Cover And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

When unflanging the transmission, pay attention to installation position of rubber plugs (1).

Fig 6: Identifying Rubber Plugs

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock connector (1) by turning and disconnect
Release cable from brackets
Insert special tool 24 2 390 in sealing cup.

These tasks are described in NOTES ON MECHATRONICS .

(IMPORTANT: Observe important note)

Fig 7: Disconnecting Connector

Courtesy of BMW OF NORTH AMERICA, INC.

Insert special tool 24 2 390 in sealing sleeve (1).

Fig 8: Inserting Special Tool (24 2 390) In Sealing Sleeve

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect connector (1) from transfer box control unit (longitudinal torque module) (2).

Fig 9: Identifying Transfer Box Control Unit And Connector

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Disconnect hydraulic lines (2) to transmission oil cooler.

Installation note:

Replace sealing rings.

Fig 10: Identifying Hydraulic Lines And Mounting Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Release hydraulic lines with holder.

Fig 11: Identifying Hydraulic Lines Mounting Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Crank engine at vibration damper in direction of rotation until screw (1) is visible in recess.

Release all 6 screws (1) on torque converter.

Tightening torque 24 40 1AZ .

Fig 12: Identifying Torque Converter Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Press special tool 24 1 380 together and insert into recess in transmission housing.

Fig 13: Inserting Special Tool (24 1 380) Into Recess In Transmission Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Remove bolt (3) on left and right of axle.

Tightening torque 31 10 1AZ .

Fig 14: Identifying Cover Plate, Bolt And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Screw on special tool 11 8 910 .

Fig 15: Identifying Special Tool (11 8 910)

Courtesy of BMW OF NORTH AMERICA, INC.

Adjust distance (1) between cross bar and facing using nuts (2).

Nuts (2) must be screwed down in opposite direction after distance has been adjusted.

IMPORTANT: Distance:
N63 38 mm

Fig 16: Adjusting Distance Between Cross Bar And Facing Using Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Lower engine with transmission.

Support engine with lifter when removing transmission.

Then support transmission.

Supporting transmission

Support transmission with special tools 23 4 050 , 00 2 030 .

Secure transmission to mounting with tensioning strap (1).

Tasks are described in TRANSMISSION HOLDER .

Fig 17: Supporting Transmission Using Special Tools (23 4 050 And 00 2 030)

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws.

Tightening torque 22 32 3AZ .

Fig 18: Locating Automatic Transmission Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws.

Tightening torque 24 00 1AZ .

Unflange transmission.

Fig 19: Locating Transmission Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Check that fitting sleeves (2) are correctly fitted.

Replace damaged fitting sleeves.

Fig 20: Identifying Driving Plate Bore Hole And Fitting Sleeves

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Rotate torque converter until bore hole in torque converter is flush with bore hole in drive plate.

Flange-mount transmission to engine.