24 00 035 Removing and Installing Automatic Transmission (GA8HP90Z)

24 00 035 Removing And Installing Automatic Transmission (GA8HP90Z) N74

Special tools required:







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







Necessary preliminary tasks:
- Disconnect the battery
- Remove fan cowl
- Remove both intake silencer housings
- Remove catalytic converter, cylinders 7-12







Unfasten ground strap (1).
Remove holder (2).







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).







Release screws (1).
Tightening torque 18 31 3AZ.
Remove holder (2).







Release monitoring sensor (1) for catalytic converter, cylinders 1-6 with special tools 11 7 030 and 11 9 150.
Tightening torque 11 78 1AZ.
Remove monitoring sensor (1).

IMPORTANT: When using special tool 11 7 030 in conjunction with 11 9 150, it is essential to reduced the prescribed Tightening torque by 3 Nm.







Disconnect connector (1) from oil level sensor.
Release cable (2) from retaining clips.
When disconnecting the transmission, pay attention to installation position of rubber plugs (3).







Release screw (1) and remove crankshaft sensor.
Disengage cable from holder (2).







Release screws (1).
Tightening torque 24 00 1AZ.
Remove cover (2).







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

These tasks are described in Notes on mechatronics
(IMPORTANT: Observe important note)







Release screw (1).
Tightening torque 17 22 1AZ.
Release oil cooler line (2).

Installation note:
Replace sealing rings.







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.







Insert special tool 24 4 131 and 24 4 138 into recess in transmission housing.
Twist special tool and secure torque converter.







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.







Screw on special tool 11 8 910.







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: N74 37 mm







Release screws (1).
Tightening torque 22 32 3AZ.
Unfasten screws (2).
Tightening torque 22 32 4AZ.
Remove transmission cross member.







- Remove propeller shaft
- IMPORTANT: Bending the propeller shaft by an excessive angle can cause premature damage to the joint/propeller shaft.

- Support engine with lifter when removing transmission.

Lower engine with transmission.
Secure engine and transmission in lowered position with engine support beam.
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 Transmission bracket.
After completion of work, check transmission fluid level.







Release screws.
Tightening torque 24 00 1AZ.
Unflange transmission.







Installation note:
Check that fitting sleeves (2) are correctly fitted.
Replace damaged fitting sleeves.







Installation note:
Rotate torque converter until bore hole in torque converter is flush with bore hole in drive plate.
Flange-mount transmission to engine.