24 00 039 Removing and installing automatic transmission (GA8HP50Z with AWD)

WARNING: This page is about a different car, the 2018 BMW 330i xDrive and 2017 BMW 330i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required :

00 2 030
00 9 120
00 9 130
11 8 910
23 4 050
24 2 390
24 4 160
24 4 161
24 4 164
11 6 480
24 1 110

CAUTION: 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.

CAUTION:

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

CAUTION: After completion of repair work, check TRANSMISSION OIL LEVEL .
Use only the APPROVED TRANSMISSION OIL .
Failure to comply with this requirement will result in serious damage to the automatic transmission!

Necessary preliminary work:

Clamp off battery earth lead .
Remove FRONT UNDERBODY PROTECTION
Remove REAR UNDERBODY PROTECTION
Remove REINFORCEMENT PLATE .
Remove EXHAUST SYSTEM .
Remove heat shields.
Remove STARTER MOTOR .
Partially remove PROPELLER SHAFT .
- Disconnect propeller shaft at transmission.
- Release center mount.
- Tie up the propeller shaft to the vehicle underbody.
Attention:

Bending the propeller shaft by an excessive angle can cause premature damage to the joint/propeller shaft!
Support engine with lifter when removing transmission.

Removal:

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Release positive battery cable (1) from the clamps (2) and lay to one side.

Slacken nut (1).

Release screw (2).

Loosen screws (3).

Remove holder (4).

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Pull off cotter pins (1).

Remove acoustic cover (2).

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Release screws (1).

Remove holder (2).

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Release screw (1).

Remove heat shield (2).

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Supporting transmission:

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

Secure transmission to mounting with tensioning strap (1).

Tasks are described in GEARBOX HOLDER .

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Release screws (1).

Release transmission cross-member from body.

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Release screw (1).

Remove transmission cross-member (2).

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Disconnect connector (2) from transfer case control unit (longitudinal torque distribution) (3).

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Slacken nut (1).

Release ground strap (2) from body.

Unscrew nut (3).

Remove holder (4).

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Release screw (1).

Disconnect hydraulic lines (2) to transmission oil cooler.

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Crank engine with special tool 11 6 480 at the vibration damper in direction of rotation until screw (1) is visible in the recess.

Release all 6 bolts of torque converter with special tool 24 1 110.

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Prepare special tool (1) 24 4 161 (A) with the shaped element (2) 24 4 164 as shown.

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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).

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Unlock and disconnect connector (1) by turning.
Do not touch pins.
Loosen all cable clips.
Insert special tool 24 2 390 in the sealing sleeve.

Operations are described in: NOTES ON MECHATRONICS .

CAUTION: Read and comply with important note.

Insert special tool 24 2 390 in the sealing sleeve.

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Fig 1: Torque Converter Screws Loosening Sequence

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Release remaining screws.

Installation:

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Installation:

Bore hole (1) in drive plate must be accessible from recess for the starter.

Check dowel sleeves (2) and (3) for correct seating.

Replace damaged fitting sleeves.

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

Fig 2: Torque Converter Screws Tightening Sequence

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Insert screws and tighten.

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Install heat shield (2).

Tighten screw (1).

Tightening torque

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Install holder (2).

Tighten screws (1).

Tightening torque 18 20 2AZ .

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Install acoustic cover (2).

Install cotter pins (1).

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Feed in holder (4) and install.

Tighten down screws (3).

Tightening torque 18 31 3AZ

Tighten screw (2).

Tighten nut (1).

Tightening torque 18 31 4AZ .

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Feed positive battery cable (1) into clamps (2) and install.

Fig 3: Torque Converter Screws Tightening Sequence

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Tighten the screws.

Tightening torque 24 00 1AZ .

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Unscrew screw (1) and screw (2).

Remove special tool 24 4 160 from the recess on the transmission housing.

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Parts: Replace screws.

Crank engine with special tool 11 6 480 at the vibration damper in direction of rotation until screw (1) is visible in the recess.

Tighten all 6 bolts of torque converter with special tool 24 1 110.

Tightening torque 24 40 1AZ .

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Remove special tool 24 2 390 from sealing sleeve.

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Push on plug connector (1) and lock by turning.

Operations are described in: NOTES ON MECHATRONICS .

CAUTION: Read and comply with important note.

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CAUTION: It is mandatory to use the screw with washer M6x20, also refer to the appropriate BMW parts catalogue.

Parts: Replace sealing rings.

Install hydraulic lines (2) on transmission.

Tighten screw (1).

Tightening torque 17 22 1AZ .

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Install ground strap (2).

Tighten screw (1).

Tightening torque 24 11 7AZ .

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Connect connector (2) from transfer case control unit (longitudinal torque distribution) (3).

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Install the transmission cross member (2).

Tighten screw (1).

Tightening torque 22 32 6AZ .

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Insert screws (1) and tighten.

Tightening torque 22 32 3AZ .

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Remove special tool 23 4 050, 00 2 030 and mounting from the transmission.

Remove the tensioning strap (1) from the mounting.

Required follow-up work:

Install PROPELLER SHAFT .
Install STARTER .
Install heat shields.
Install EXHAUST SYSTEM .
Install REINFORCEMENT PLATE .
Install FRONT UNDERBODY PROTECTION
Install REAR UNDERBODY PROTECTION
Connect vehicle battery .