24 00 034 Removing And Installing Automatic Transmission (GA8HP70Z) N63

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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 .
Use only the approved transmission oil .
Failure to comply with this requirement will result in serious damage to the automatic transmission!

Necessary preliminary tasks:

Clamp off battery . See 61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD or 61 20... INFORMATION ON AGM BATTERY .
Remove BOTH INTAKE SILENCER HOUSINGS .
Remove underbody protection at front and rear. See 51 47 490 REMOVING AND INSTALLING/REPLACING UNDERBODY PROTECTION (FRONT) or 51 47 491 REMOVING AND INSTALLING/REPLACING REAR UNDERBODY PROTECTION .
Remove PROPELLER SHAFT .
- NOTE: Bending the propeller shaft by an excessive angle can cause premature damage to the joint/propeller shaft!
Support engine with jack when removing gearbox.

Unfasten ground strap (1).

Remove retaining plates (2).

Fig 1: Ground Strap And Retaining Plates

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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 2: Cable, Release Lever And Screw
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NOTE: The cable (transmission emergency release) is not required for:

F07 from production date 03/2010.
F10/F11 from production date 06/2010.

Release screw (1).

Remove cover (2).

Tightening torque: 24 00 1AZ .

Fig 3: Automatic Transmission Cover And Mounting Screws

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When unflanging the gearbox, pay attention to installation position of rubber connectors (1).

Fig 4: Gearbox Rubber Connectors

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Release screw (1) and remove crankshaft sensor.

Disengage cable from holder (2).

Fig 5: Crankshaft Sensor Screw And Holder

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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 cup.

Operations are described in:

NOTES ON MECHATRONICS .

IMPORTANT: Read and comply with important note.

Fig 6: Disconnecting Automatic Transmission Connector

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Release screw (1).

Undo hydraulic line and holder.

Fig 7: Hydraulic Line And Holder Screw

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Release screw (1).

Disconnect hydraulic lines (2) to transmission oil cooler.

Installation note:

Replace sealing rings.

Keep to installation sequence.

Fig 8: Transmission Oil Cooler Hydraulic Lines And Screw

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

Undo all 6 bolts on torque converter.

Tightening torque: 24 40 1AZ .

Fig 9: Torque Converter Bolts

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Insert special tool 24 4 131 , 24 4 138 into recess in transmission housing.

Lock the torque converter by tightening the special tool.

Fig 10: Inserting Special Tool (24 4 131) Into Transmission Housing

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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 11: Axle Cover Plate, Screw And Bolt

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Screw on special tool 11 8 910 .

Fig 12: 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 13: Cross Bar And Nuts Distance

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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).

Repair work is are described in GEARBOX HOLDER .

After completion of work, check transmission fluid level.

Fig 14: Supporting Transmission Using Special Tools

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Release screws (1) and (2).

Remove transmission cross member.

Tightening torque: 22 32 3/4AZ .

Fig 15: Transmission Cross Member And Screws

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Release screws.

Tightening torque 24 00 1AZ .

Unflange transmission.

Fig 16: Transmission Mounting Screws

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Installation note:

Bore (1) in drive plate must be accessible from opening in transmission housing. Check that fitting sleeves (2) are correctly fitted.

Replace damaged fitting sleeves.

Fig 17: Drive Plate Bore 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.