24 00 033 Removing and installing automatic transmission (GA8HP45Z) (X6 xDrive 35i)

Special tools required: 

• 23 4 050 
• 00 2 030 
• 24 1 110 
• 2 222 741 
• 24 2 390 

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Attention! 

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.

Attention! 

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

Attention! 

After completion of repair work, check TRANSMISSION OIL LEVEL .

Use only the approved transmission oil, refer to "Fluid Capacities" tab for the selected vehicle.

Failure to comply with this requirement will result in serious damage to the automatic transmission!

Necessary preliminary tasks: 

• Clamp off BATTERY .
• Remove FAN COWL .
• Remove CHARGE AIR DUCT .
• Remove REINFORCEMENT PLATE .
• Remove rear UNDERBODY PROTECTION .
• Remove left UNDERBODY PANELLING .
• Remove CROSS MEMBER .
• Remove EXHAUST SYSTEM .
• Remove heat shields.
• Remove front PROPELLER SHAFT .
• Partially remove PROPELLER SHAFT .
  • Disconnect propeller shaft at transmission.
  • Release center mount.
  • Tie up the propeller shaft to the vehicle underbody.

• Support engine with lifter when removing transmission.

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Release screw (1).

Release holder with hydraulic lines.

Release screw (3).

Disconnect hydraulic lines (2) to transmission oil cooler.

Tightening torque 17 22 1AZ .

Installation note: 

Replace sealing rings.

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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 TRANSMISSION BRACKET .

After completion of work, check transmission fluid level.

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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 .

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Unscrew knurled screw (1) from special tool 2 222 741 (do not remove completely) before inserting in the recess of the transmission housing.

Insert special tool 2 222 741 and shaped element (3) in the recess.

Slightly tighten knurled nut (2).

Screw in knurled screw (1) fully.

• Locating pin (4) must be located between converter and engine.

Move special tool 2 222 741 in the recess until the locating pin (4) rests against the converter.

Use knurled nut (2) to fix special tool 2 222 741 and converter in position.

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

Tasks are described in Gearbox holder.

NOTES ON MECHATRONICS .

Attention! 

Read and comply with important note.

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Loosen screws.

Tightening torque 24 00 1AZ .

Remove transmission.

Installation note: 

Note installation locations of screws.

Aluminum screws/bolts must  be replaced.

Installation note: 

Check that fitting sleeves (1) are correctly seated.

Replace damaged 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.