Removing and installing automatic transmission (GA8HP75Z) (X5 M)

Special tools required:

00 2 030
11 8 910
23 4 050
24 2 390
24 4 131
24 4 138
24 1 380

IMPORTANT: To prevent heavy damage to the engine block, the protruding thread of the transmission bolts absolutely must be checked for damage and corrosion before removal.
If there are signs of corrosion, the rust must be removed and the threads must be cleaned before removal.
Replace rusted, damaged screws.

Failure to comply with this instruction will result in serious damage to the engine block and transmission.

IMPORTANT:

Avoid contact with transmission oil and inhalation of transmission oil vapors under all circumstances.
Wear protective gloves.
Ensure adequate ventilation

IMPORTANT: After completing work:
Check TRANSMISSION OIL LEVEL .

Use only the approved transmission oil. See the Fluid Capacities tab for the selected vehicle.

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

Necessary preliminary tasks:

Disconnect NEGATIVE BATTERY CABLE .
Remove FAN COWL .
Remove INTAKE SILENCER HOUSING .
Remove REINFORCEMENT PLATE .
Remove UNDER/BODY PROTECTION (FRONT) and REAR ENGINE UNDERCOVER .
Remove EXHAUST SYSTEM .
Remove FRONT PROPELLER SHAFT .
Partially remove PROPELLER SHAFT .
- Disconnect propeller shaft at transmission.
- Release center mount.
- Tie up propeller shaft to underbody.
  NOTE: Bending the propeller shaft by an excessive angle can cause premature damage to the joint/propeller shaft!
Remove heat shields.
Support engine with lifter when removing transmission.

Removal:

Release screws (1).

Remove panel (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Vehicles with Adaptive Drive:

Remove cover (1).

Unfasten screws (2).

Secure line (3) under cross-brace.

Courtesy of BMW OF NORTH AMERICA, INC.

Release cable from holder (1) and from transmission.

Release screw (2) and remove crankshaft sensor.

Unlock and disconnect connector (3).

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect connector (1) by turning.
Do not touch pins.
Release cable from brackets.

IMPORTANT: Read and comply with important note.

Operations are described in: NOTES ON MECHATRONICS .

Courtesy of BMW OF NORTH AMERICA, INC.

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

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Disconnect hydraulic lines (2) to transmission oil cooler.

Courtesy of BMW OF NORTH AMERICA, INC.

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

Release all 6 screws (1) on torque converter.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Replace screws for torque converter.

Observe tightening sequence.

The torque converter must always be screwed to the vertically arranged, elongated hole (1) first.
Turn the torque converter until the elongated hole (1) is visible in the opening.
Tighten down screw.
Tightening torque 24 40 1AZ .
Observe the tightening sequence of the additional five screws (torque converter on flywheel).
→ For this purpose, see the following figure

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening sequence 1-4-3-6-5-2

Screw connection 1 = vertically arranged, elongated hole in torque converter

Tightening torque 24 40 1AZ .

Fig 1: Torque Converter Screws Tightening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

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

Courtesy of BMW OF NORTH AMERICA, INC.

Remove seal plug (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Supporting transmission:

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

Secure transmission to mounting with tensioning strap (1).

Repair work is are described in GEARBOX HOLDER .

After completion of work, Check TRANSMISSION OIL LEVEL .

Courtesy of BMW OF NORTH AMERICA, INC.

Loosen screws.

Release screw (1).

Remove transmission cross member.

Lower transmission.

Courtesy of BMW OF NORTH AMERICA, INC.

Release and detach connector (1) from transfer box control unit.

Remove bolt (2) and ground cable from transfer box.

Courtesy of BMW OF NORTH AMERICA, INC.

Undo the Torx screws.

Disconnect transmission.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check that fitting sleeves (2) are correctly fitted.

Replace damaged fitting sleeves.

Courtesy of BMW OF NORTH AMERICA, INC.

Transmission flange-mount.

Insert screws and tighten.

Tightening torque 24 00 1AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Install seal plug (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 24 1 380.

Courtesy of BMW OF NORTH AMERICA, INC.

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

Insert and tighten all 6 screws (1) of torque converter.

Tightening torque 24 40 1AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Install hydraulic lines (2).

Insert screw (1) and tighten.

Parts: Replace sealing rings.

Tightening torque 17 22 1AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 24 2 390.

Insert plug connector (1) and lock by turning.

Courtesy of BMW OF NORTH AMERICA, INC.

Install cable at transmission and holder (1).

Install crankshaft sensor.

Fit bolt (2) and tighten.

Lock connector (3).

Courtesy of BMW OF NORTH AMERICA, INC.

Lock connector (1).

Install ground strap.

Fit nut (2) and tighten.

Tightening torque 24 11 7AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Install the transmission cross member.

Insert screws and tighten.

Tightening torque 22 32 11AZ .

Insert screw (1) and tighten.

Tightening torque 22 32 6AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 23 4 050 00 2 030.

Courtesy of BMW OF NORTH AMERICA, INC.

Vehicles with Adaptive Drive:

Install line (3).

Insert screws (2) and tighten.

Install cover (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Install panel (2).

Insert screws (1) and tighten.

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work:

Install FRONT PROPELLER SHAFT .
Install PROPELLER SHAFT .
Install heat shields.
Install EXHAUST SYSTEM .
Install REINFORCEMENT PLATE .
Install UNDER/BODY PROTECTION (FRONT) and REAR ENGINE UNDERCOVER .
Install FAN COWL .
Install INTAKE SILENCER HOUSING .
Connect BATTERY EARTH LEAD .