24 00 033 Removing and installing automatic transmission (GA8HP45Z)

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

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:

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

IMPORTANT: After completion of repair work, check transmission oil level. Refer to CHECKING TRANSMISSION FLUID LEVEL .
Use only the approved transmission oil. Refer to APPROVED AUTOMATIC TRANSMISSION FLUIDS FOR INITIAL FILLINGS AND CORRECTING FLUID LEVELS .
Failure to comply with this requirement will result in serious damage to the automatic transmission!

IMPORTANT: For vehicles with N54/N55 engine up to production date 09/2012, aluminum bolts for the for the securing of the transmission are also installed.
As of production date 09/2012, only steel bolts are installed for the securing of the transmission.

NOTE: Aluminum screws/bolts must be replaced each time they are released .
Aluminum screws/bolts are permitted with and without color coding (blue).
For reliable identification:
Aluminum screws/bolts are not magnetic .
Jointing torque and angle of rotation must be observed without fail (risk of damage) .
The aluminum bolts can be optionally replaced by steel bolts.

Necessary preliminary tasks

Disconnect the battery . See 61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD or 61 20... INFORMATION ON AGM BATTERY
Remove FAN COWL
Detach both charge air hoses on charge air cooler
Remove underbody protection . See 51 47 490 REMOVING AND INSTALLING/REPLACING UNDERBODY PROTECTION (FRONT) or 51 47 491 REMOVING AND INSTALLING/REPLACING REAR UNDERBODY PROTECTION at front and rear
Remove EXHAUST SYSTEM
Remove PROPELLER SHAFT
Release MONITORING SENSOR on catalytic converter
Support engine with jack when removing gearbox

Remove upper part of cable duct (1).

Fig 1: Identifying Upper Part Of Cable Duct

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Unfasten ground strap (1).

Remove retaining plates (2).

Fig 2: Identifying Ground Strap And Retaining Plates

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Release cable (1) from holder (2).

Fig 3: Identifying Cable And Holder

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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 4: Identifying Screw, Cable And Lever
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Release screw (1).

Disconnect hydraulic lines (2) to transmission oil cooler.

Tightening torque 17 22 1AZ .

Installation note:

Replace sealing rings.

IMPORTANT: Keep to installation sequence.
Failure to observe this sequence will result in leaks.

1. Lower hydraulic line.
2. Upper hydraulic line.

Fig 5: Identifying Screw And Hydraulic Lines

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Release coolant hose (1) from holder (2) and lay to one side.

Fig 6: Identifying Coolant Hose And Holder

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

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

Installation note:

Replace converter screws. Remove any remaining adhesive residue from the thread.

Tightening torque 24 40 1AZ .

Fig 7: Identifying Vibration Damper And Screw

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Release nuts (1) and (2).

Tightening torque 18 20 1AZ .

Fig 8: Identifying Nuts

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Release screws (3), (4) and (9).

NOTE: Aluminum screws must be replaced.

Tightening torque 24 00 2AZ .

Fig 9: Identifying Screws Of Exhaust System Holder

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

Fig 10: Preparing Special Tool (24 4 161)

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

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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 sleeve.

Operations are described in:

NOTES ON MECHATRONICS

IMPORTANT: Read and comply with important note.

Fig 12: Disconnecting Connector

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Release screw (1) on left and right of axle.

Remove cover plate (2) on left and right of axle.

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

Tightening torque 31 10 1AZ .

Fig 13: Identifying Screw, Cover Plate And Bolt

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Screw on special tool 11 8 910 .

Fig 14: 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:
N55 38.5 mm

Fig 15: Identifying Distance Between Cross Bar And 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).

Tasks are described in Gearbox holder. Refer to UNIVERSAL BMW TRANSMISSION TAKE-UP .

After completion of work, check transmission fluid level.

Fig 16: Securing Transmission To Mounting Tensioning Strap

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Unscrew nut (1) and bolts (2).

Remove gearbox cross member (3).

Tightening torque 22 32 3/4AZ .

Fig 17: Identifying Nut, Bolts And Gearbox Cross Member

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Release screws.

Remove exhaust system holder.

Installation note:

Observe screw fastening sequence without fail.

Tightening torque, steel screws 24 00 1AZ .

Aluminum screws must be replaced.

Tightening torque and angle of rotation, aluminum screws/bolts 24 00 2AZ (7, 8, 9, 10, 11).

Fig 18: Identifying Screws Of Exhaust System Holder

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Installation note:

Tighten down screws/bolts to specified torque.

Attach special tool 00 9 120 for angle of rotation with magnet 00 9 130 to vehicle underbody and screw down blue aluminum screws/bolts in accordance with angle of rotation.

Angle of rotation 24 00 2AZ .

Fig 19: Attaching Special Tool (00 9 120) For Angle Of Magnet

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Installation note:

Bore hole (1) of drive plate must be accessible from recess on engine oil sump. Check fitting sleeves (2...3) for correct seating.

Replace damaged fitting sleeves.

NOTE: Graphic representation similar.

Fig 20: Identifying Bore Hole And 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.