24 00 034 Removing and installing automatic transmission (GA8HP70Z) (N63)

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 transmission oil vapors.
Wear protective gloves.
Ensure adequate ventilation.

IMPORTANT: After completion of repair work, check TRANSMISSION OIL LEVEL .

Use only approved TRANSMISSION OIL .

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 rear UNDERBODY PROTECTION .
Remove complete EXHAUST SYSTEM .
Remove CROSS MEMBER .
Remove heat shields.
Remove front PROPELLER SHAFT .
Disconnect PROPELLER SHAFT at transfer box, release center mount.
Tie up the propeller shaft to the vehicle underbody.
NOTE: Bending the propeller shaft by an excessive angle can cause premature damage to the joint/propeller shaft! Support engine with lifter when removing transmission.

These tasks are described in NOTES ON MECHATRONICS

Unlock connector (1) by turning and disconnect

Release cable from brackets

Insert special tool 24 2 390 in sealing cup.

Fig 1: Disconnecting Connector

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Release screw (1).

Disconnect hydraulic lines (2) to transmission oil cooler.

Installation note:

Replace sealing rings.

Fig 2: Identifying 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.

Installation note:

Replace screws for torque converter. Remove any remaining adhesive residue from the thread.

Tightening torque 24 40 1AZ .

Fig 3: Identifying Torque Converter Screw

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

Fig 4: Inserting Special Tool 24 1 380 In Transmission Housing

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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 described in GEARBOX HOLDER .

After completion of work, check transmission fluid level.

Fig 5: Supporting Transmission Using Special Tools (23 4 050/00 2 030)

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Disconnect connector (3) from transfer box control unit (longitudinal torque module).

Release screw (2).

Remove earth strap (1).

Fig 6: Identifying Transfer Case Control Unit Connector, Ground Strap And Screw

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Release bolts and remove transmission.

Tightening torque 24 00 1AZ .

Installation note:

Screws have different lengths.

Note installation position.

Fig 7: Locating Transmission Screws

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Installation note:

Bore hole (1) of driving plate must be accessible from recess on engine oil sump.

Check that fitting sleeves (2) are correctly fitted.

Replace damaged fitting sleeves.

Fig 8: Identifying 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 automatic transmission to engine.