24 00 023 Removing and installing automatic transmission (GA6HP26Z) (X6 50i)

Special tools required:

IMPORTANT: After completion of 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 tasks:

Disconnect BATTERY
Secure engine in INSTALLATION POSITION
If necessary, remove FAN COWL
Remove both INTAKE FILTER HOUSINGS .
Remove EXHAUST SYSTEM .
Remove underbody protection at front and rear. See FRONT UNDERBODY PROTECTION and REAR UNDERBODY PROTECTION .
Remove REINFORCEMENT PLATE
Remove front PROPELLER SHAFT .
Remove PROPELLER SHAFT .

Unfasten nut.

Disconnect cable (1).

Installation note:

Unfasten nut.
Adjust cable by means of holder (2) until spacing A = 1 mm is obtained
Tighten nut.

Fig 1: Locating Cable Nut

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Vehicles with Adaptive Drive:

Release screws (1).

Secure line (2) under cross-brace (3).

Remove cover (4).

Fig 2: Identifying Cross-Brace, Cover And Mounting Screws

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Release screw (1) and remove crankshaft sensor.

Disengage cable from holder (2).

Fig 3: Identifying Crankshaft Sensor Mounting Screw

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Unlock plug (1) by turning and disconnect
Release cable from retainers
Insert special tool 24 2 390 in sealing sleeve

IMPORTANT: Observe important notes:

These tasks are described in NOTES ON MECHATRONICS .

Fig 4: Disconnecting Connector

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Release screw (1).

Disconnect hydraulic lines (2) to transmission fluid cooler.

Installation note:

Replace sealing rings.

Fig 5: Identifying Hydraulic Lines And Mounting Screw

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Release screws (1).

Tightening torque, 24 00 1AZ .

Fig 6: Identifying Screws

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Crank engine at vibration damper until screw (1) is visible in opening.

Release all 6 screws (1) on torque converter.

Tightening torque, 24 00 1AZ .

Fig 7: Identifying Torque Converter Screws

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Press special tool 24 1 380 together and insert in opening of transmission housing.

Fig 8: Inserting Special Tool 24 1 380 In Transmission Housing

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Unlock and detach plugs (1) and (2).

Fig 9: Identifying Plugs

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Release screws.

Tightening torque 22 32 4AZ .

Release screw (1).

Tightening torque 22 32 5AZ .

Remove cross-member.

Fig 10: Removing Crossmember

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Remove PROPELLER SHAFT from transmission.
Release center mount.

NOTE:

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

Lower engine with transmission.

Then support transmission.

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 .

After completion of work, check transmission oil level.

Fig 11: Supporting Transmission

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Release screws.

Tightening torque, 24 00 1AZ .

Unflange transmission.

Fig 12: Locating Transmission Screws

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Installation note:

Bore (1) in driving disk must be accessible from opening on engine oil pan.

Check that adapter sleeves (2) are correctly seated.

Replace damaged dowel sleeves.

Fig 13: 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-mount transmission to engine.