Removing automatic transmission (all-wheel drive vehicle) (GA8HP75Z)

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WARNING: Hot fluids .
Risk of scalding!

Conduct all work in the vehicle wearing appropriate personal protective equipment only.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

NOTE: TECHNICAL INFORMATION
Grease the threads of new oxygen sensors thinly and evenly.
For oxygen sensors that are reused, the following should be observed:
Thinly and evenly grease the oxygen sensor on the thread only. Do not clean the part of the oxygen sensor that does not protrude into the exhaust line (sensor ceramics) and do not grease.
For additional information see: 11 00... OVERVIEW OF CONSUMABLES IN APPLICABLE BMW PARTS CATALOGUE .

Preliminary work

Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
Refer to REMOVING THE REAR DIFFUSER .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING THE STIFFENING PLATE .
Removing the undershield on the left fuel tank.

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- Loosen screws (1).
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- Loosen screws (2).
- Remove the undershield (1) at the fuel tank on the left.
Refer to REMOVING UNDERSHIELD ON THE FUEL TANK ON THE RIGHT .
Refer to REMOVING REINFORCEMENT STRUT .
Removing rear tunnel connecting support.

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- Loosen screws (1).
- Loosen screws (2).
- Removing rear tunnel connecting support(3).
Refer to REMOVING EXHAUST SYSTEM .
Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
Removing the cover of the rear right engine compartment.

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- Loosen the lock (1).
- Remove the cover (2).
Covering the vehicle battery
CAUTION:
Unprotected battery terminals.
Risk of short circuits! Risk of fire!
- Cover the vehicle battery
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NOTE: The following step(s) must be performed if the listed component(s) is/are installed.
- Cover the vehicle battery with the special tool 2 452 007 as shown.
Refer to REMOVING LEFT AND RIGHT WIPER ARM .
Refer to REMOVING THE COWL COVER .
Refer to REMOVING TRAILING LINK AT SPRING BOLT .
Refer to REMOVING THE COWL UPPER PART IN THE CENTER .
Refer to REMOVING THE COVER PANEL OF THE MASTER DME CONTROL UNIT .
Refer to REMOVING THE COVER PANEL OF THE SLAVE DME CONTROL DEVICE .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING THE LAMBDA OXYGEN SENSOR FOR THE CYLINDERS 1 TO 4 .
Refer to REMOVING LAMBDA OXYGEN SENSOR FOR THE CYLINDERS 5 TO 8 .
Refer to REMOVING COOLANT EXPANSION TANK .
Refer to REMOVING HOLDER OF DME CONTROL UNIT FOR CYLINDERS 5 TO 8 .
Refer to REMOVING EXPANSION TANKS FOR THE CHARGE AIR COOLERS .
Refer to LIFTING THE HEAT SHIELD AT THE SIDE .
Refer to REMOVING THE OXYGEN SENSOR MONITOR OF CYLINDER BANK 1 .
Refer to REMOVING THE OXYGEN SENSOR MONITOR OF CYLINDER BANK 2 .
Removing conduit from bank 1.

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- Loosen screws (1).
- Slide conduit (2) downwards.
Refer to REMOVING THE WIRING HARNESS FROM THE CYLINDER BANK 2 .
Refer to REMOVING UPPER HEAT SHIELD .
Refer to REMOVING CATALYTIC CONVERTER NEAR ENGINE UNDER CYLINDER BANK 1 .
Refer to REMOVING THE CATALYTIC CONVERTER NEAR THE ENGINE AT BOTTOM OF CYLINDER BANK 2 .
Refer to REMOVING THE HEAT SHIELDS .
Refer to PARTIALLY LOOSENING THE PROPELLER SHAFT .
Refer to RELEASING THE FRONT PROP SHAFT ON THE FRONT AXLE TRANSMISSION .

CAUTION: Materials harmful to health .
Contact with fluids harmful to health!

Note and follow safety instructions on containers.
Conduct all work in appropriate personal protective equipment only.

NOTE: RISK OF DAMAGE
Damage to the engine block .
Serious damage to the engine block and transmission due to damaged and corroded screws .

It is imperative that protruding threads of the transmission bolts are checked for corrosion and damage prior to removal.
It is imperative that all rust is removed from corroded threads and that they are cleaned prior to removal.
Replace rusted and damaged bolts.

NOTE: RISK OF DAMAGE
Damage of components in the engine compartment .
When removing the transmission, the tilting of the engine may cause damage to components in the engine compartment .

Before removing the transmission: Support the engine.
Protect engine from tipping movements.
Follow the specifications in the repair instructions.

NOTE: RISK OF DAMAGE
Damage to the transmission .
Damage to the transmission due to unapproved transmission oil .

Use only the approved transmission oil.
Check the transmission oil level after completing the repair.

Release lines

Loosen screws (1).
Remove the heat shield (2).

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Loosen screw (1).
Loosen screw (2).
Lay lines (3) to one side.

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Support transmission .

Support the transmission with special tools 0 495

498 (23 4 050) and 2 219 012 .

NOTE: TECHNICAL INFORMATION
Notes on universal transmission support are a fundamental requirement for these repair instructions and must be complied with at all times.

Secure transmission to mounting with tensioning strap (1).

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Detach transmission cross member

Loosen screws (1).
Lower transmission cross member (2) with transmission.

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Loosen ground strap from transmission

Release the screw (1) and release the ground strap (2).

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Disconnecting the connector from VTG control unit

Disconnect the connector (1) from VTG control unit (2).

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Disconnect hydraulic lines to transmission oil cooler

Loosen screw (1).
Disconnect hydraulic lines (2) to transmission oil cooler.

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Loosen screw (1).
Disconnect hydraulic lines (2) to transmission oil cooler.

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Release converter bolt

Remove sealing cap (1).

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Crank the engine on the vibration damper in the direction of rotation until the screw (1) is visible in the recess.
Release all 6 screws (1) the torque converter.

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Securing the torque converter

Prepare special tool 0 494 451 (24 4 160) (1) with the shaped part 0 494 622 (24 4 164) (2) as shown.

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Remove sealing cap (1).

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Insert special tool 0 494 451 (24 4 160) into the recess of the transmission housing and apply slight tension using the screw (1).
Screw the bolt (2) in to the stop.
Tighten down screw (1).

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Disconnecting the connector from the sealing sleeve

NOTE: TECHNICAL INFORMATION
Notes on mechatronics are a fundamental requirement for these repair instructions and must be complied with at all times.
For additional information see: NOTES ON MECHATRONICS 24 34... Notes on mechatronics (GA8HP50Z/GA8HP51Z/GA8HP75Z/GA8

Unlock the connector (1) by turning and disconnect.

Do not touch pins.

Loosen all cable clips.
Insert the special tool 0 494 213 (24 2 390) in the sealing sleeve (1) in arrow direction.

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Notes on mechatronics

CAUTION: Materials harmful to health .
Contact with fluids harmful to health!

Note and follow safety instructions on containers.
Conduct all work in appropriate personal protective equipment only.

NOTE: RISK OF DAMAGE
Damage to the automatic transmission after removal of the mechatronics .
Serious damage to the automatic transmission due to non-compliance with the following tasks:

Load specific data status with the diagnostic system.
Use only approved transmission oil.
After completion of repair work, check the transmission oil level.

NOTE: RISK OF DAMAGE
Electrostatic discharge .
Damage to or destruction of electrical components .

Leave the electrical components in their original packaging until they are being installed. Only use the original packaging for returning the product. Always package removed components straight away.
Read and comply with user information on using the associated special tool 12 7 060.
Only tap the housings of electrical components. Do not tap pins or multi-pin connectors directly.
Wear electrically conductive clothing and antistatic shoes (with ESD symbol).
For additional information see: 61 35... NOTES ON ESD (ELECTROSTATIC DISCHARGE) PROTECTION .

Undo remaining Torx screws

Support the engine.
Loosen the screws (arrows) and remove the transmission.

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