24 00 023 Removing and installing automatic transmission (GA6HP26Z)

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required

IMPORTANT: After completion of work, check TRANSMISSION OIL LEVEL .
Use only the approved transmission fluid: Shell M-1375.4 ; BMW part number 83 22 0 142 516 ; 20 liters
Failure to comply with this requirement will result in serious damage to the automatic transmission!

Necessary preliminary tasks:

Disconnect the BATTERY
Remove BOTH INTAKE FILTER HOUSINGS
Remove EXHAUST SYSTEM
Remove FRONT PROPELLER SHAFT
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.

Release screws (1).

Remove cover (2).

Fig 1: Identifying Automatic Transmission Cover And Screws

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Unfasten ground strap (1).

Remove panels (2).

(Similar picture)

Fig 2: Identifying Earth Strap And Panels

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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 3: Locating Cable Nut
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Release screw (1) and remove crankshaft sensor.

Disengage cable from holder (2).

Detach connector (3) from oil pressure switch.

Fig 4: Identifying Cable Holder, Oil Pressure Switch Connector And Crankshaft Sensor Screw

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Release screws (1).

Remove cover (2).

Tightening torque 24 00 1AZ .

Fig 5: Identifying Cover And Screws

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When unflanging the transmission, pay attention to installation position of rubber plugs (1).

Fig 6: Identifying Rubber Connectors

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Unlock connector (1) by turning and disconnect
Release cable from brackets
Insert special tool 24 2 390 in sealing cup.

These tasks are described in NOTES ON MECHATRONICS .

(Important: Observe important note)

Fig 7: Disconnecting Connector

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Insert special tool 24 2 390 in sealing sleeve (1).

Fig 8: Inserting Special Tool (24 2 390) In Sealing Sleeve

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Disconnect connector (1) from transfer box control unit (longitudinal torque module) (2).

Fig 9: Identifying Transfer Box Control Unit And Connector

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Release screw (1).

Disconnect hydraulic lines (2) to transmission oil cooler.

Installation note:

Replace sealing rings.

Fig 10: Identifying Hydraulic Lines And Mounting Screw

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Release screw (1).

Release hydraulic lines with holder.

Fig 11: Identifying Hydraulic Lines Mounting Screw

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

Release all 6 screws (1) on torque converter.

Tightening torque 24 40 1AZ .

Fig 12: Identifying Torque Converter Screw

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Press special tool 24 1 380 together and insert into recess in transmission housing.

Fig 13: Inserting Special Tool (24 1 380) Into Recess In Transmission Housing

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

Tightening torque 31 10 1AZ .

Fig 14: Identifying Cover Plate, Bolt And Screws

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Screw on special tool 11 8 910 .

Fig 15: 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:
N63 38 mm

Fig 16: Adjusting Distance Between Cross Bar And Facing Using Nuts

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Lower engine with transmission.

Support engine with lifter when removing 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 fluid level.

Fig 17: Supporting Transmission Using Special Tools (23 4 050 And 00 2 030)

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Release screws.

Tightening torque 22 32 3AZ .

Fig 18: Locating Automatic Transmission Mounting Screws

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Release screws.

Tightening torque 24 00 1AZ .

Unflange transmission.

Fig 19: Locating Transmission Screws

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Installation note:

Check that fitting sleeves (2) are correctly fitted.

Replace damaged fitting sleeves.

Fig 20: 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.