24 00 034 Removing and installing automatic transmission (GA8HP70Z) N63 AWD

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

IMPORTANT:

Do not let skin come in contact with transmission oil and do not inhale transmission oil vapors.
Wear protective gloves.
Ensure adequate ventilation

IMPORTANT: After completion of work, check TRANSMISSION OIL LEVEL .
Use only the approved transmission oil. See AUTOMATIC TRANSMISSION -- OPERATING FLUIDS .
Failure to comply with this requirement will result in serious damage to the automatic transmission!

Necessary preliminary work

Clamp off battery . See 61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD or 61 20... (SAFETY) INFORMATION ON AGM BATTERY .
Remove both INTAKE SILENCER HOUSINGS .
Remove underbody protection . See 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION or 51 47 491 REMOVING AND INSTALLING/REPLACING REAR UNDERBODY PROTECTION at front and rear.
Remove reinforcement plate
Important installation notes are described in this job item.
Remove EXHAUST SYSTEM .
Remove front propeller shaft
Detach PROPELLER SHAFT at transfer box, release center mount.
Tie back propeller shaft to underbody
NOTE: Bending the propeller shaft by an excessive angle can cause premature damage to the joint/propeller shaft!
Support engine with jack when removing gearbox.

Release screw (2).

Disconnect cable (1).

Installation note:

Release screw (2).
Bring release lever (3) into contact with selector shaft by pressing slightly.
Distance B=0 mm.
Adjust cable by means of holder until distance A=≥ 1 mm is obtained.
Tighten screw (2).

Fig 1: Identifying Adjusting Gear Lever, Cable And Screw
Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Remove cover (2).

Tightening torque, 24 00 1AZ.

Fig 2: Identifying Cover And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

When unflanging the gearbox, pay attention to installation position of rubber connectors (1).

Fig 3: Identifying Rubber Connectors

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) and remove crankshaft sensor.

Disengage cable from holder (2).

Fig 4: Identifying Cable Holder And Crankshaft Sensor Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Undo hydraulic line and holder.

Fig 5: Identifying Hydraulic Lines Mounting Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Disconnect hydraulic lines (2) to transmission oil cooler.

Installation note:

Replace sealing rings.

Keep to installation sequence.

Fig 6: Identifying Hydraulic Lines And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

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

Undo all 6 bolts on torque converter.

Tightening torque, 24 40 1AZ.

Fig 7: Identifying Torque Converter Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Prepare special tool (1) 24 4 161 (A) with shaped element (2) 24 4 166 as pictured.

Fig 8: Identifying Special Tool (24 4 161) And Shaped Element (24 4 166)

Courtesy of BMW OF NORTH AMERICA, INC.

Insert special tool 24 4 160 into recess of transmission housing and clamp gently with screw (1).

Raise by turning screw (2) and clamp down.

Then tighten down screw (1).

Fig 9: Inserting Special Tool (24 4 160) Into Recess Of Transmission Housing And Clamp

Courtesy of BMW OF NORTH AMERICA, INC.

Screw on special tool 11 8 910 .

Tightening torque 31 10 1AZ .

Fig 10: Identifying Screw Of 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 11: Identifying Gap Dimension Between Transverse Member And Nuts

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 fluid level.

Fig 12: Supporting Transmission Using Special Tools (23 4 050 And 00 2 030)

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws.

Remove transmission cross-member (1).

Tightening torque 22 32 3/4AZ .

Fig 13: Locating Transmission Cross-Member Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

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

Release screw (2).

Remove earth strap (3).

Fig 14: Identifying Transfer Box Control Unit Connector, Earth Strap And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect connector (1) by turning.
Do not touch pins.
Release cable from brackets.
Insert special tool 24 2 390 in sealing cup.

Operations are described in:

Notes on mechatronics

IMPORTANT: Read and comply with important note.

Fig 15: Disconnecting Connector

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws.

Tightening torque 24 00 1AZ .

Unflange transmission.

Fig 16: Locating Transmission Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Bore (1) in drive plate must be accessible from opening in transmission housing. Check that fitting sleeves (2) are correctly fitted.

Replace damaged fitting sleeves.

Fig 17: Identifying Drive Plate Bore And 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 automatic transmission to engine.