24 00 034 Removing and installing automatic transmission (GA8HP70Z) (N63 engine, model years 2013 through 2015)

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:

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 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:

Clamp off BATTERY
Remove both intake silencer housings
Remove underbody protection at front and rear. See REMOVING FRONT UNDERBODY PROTECTION and REMOVING REAR UNDERBODY PROTECTION .
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
Important:
Bending the propeller shaft by an excessive angle can cause premature damage to the joint/propeller shaft!
Support engine with jack when removing transmission

Release screw (1).

Remove cover (2).

Tightening torque, 24 00 1AZ .

Fig 1: Identifying Automatic Transmission Cover And Screws

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

Fig 2: Identifying Rubber Connectors

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Release screw (1) and remove crankshaft sensor.

Disengage cable from holder (2).

Fig 3: Identifying Cable Holder And Crankshaft Sensor Screw

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Slacken nut (1).

Undo hydraulic line and holder.

Fig 4: Identifying Hydraulic Lines Mounting Screw

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Release screw (1).

Disconnect hydraulic lines (2) to transmission oil cooler.

Installation note:

Replace sealing rings.

Keep to installation sequence.

Fig 5: Identifying Hydraulic Lines And Mounting Screw

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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 6: Identifying Torque Converter Screw

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

Fig 7: Preparing Special Tool (24 4 161) With Shaped Element (24 4 166)

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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 8: Inserting Special Tool (24 4 160) Into Recess Of Transmission Housing

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Screw on special tool 11 8 910 .

Tightening torque 31 10 1AZ .

Fig 9: Identifying Special Tool (11 8 910)

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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 10: Adjusting Distance Between Cross Bar And Facing Using Nuts

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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 TRANSMISSION HOLDER .

Fig 11: Supporting Transmission Using Special Tools (23 4 050 And 00 2 030)

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Release screws.

Remove transmission cross-member (1).

Tightening torque 22 32 3/4AZ .

Fig 12: Locating Transmission Cross-Member Mounting Screws

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

Release screw (2).

Remove earth strap (3).

Fig 13: Identifying Earth Strap, Transfer Box Control Unit Connector And Screw

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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 14: Disconnecting Connector

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Lower engine with transmission.
Secure engine and transmission in lowered position with engine support beam.
Then support transmission.

Release screws.

Tightening torque 24 00 1AZ .

Unflange transmission.

Fig 15: Locating Transmission Screws

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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 16: Identifying Driving Plate Bore Hole And Fitting Sleeves

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Installation note:

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

Flange automatic transmission to engine.