24 00 023 Removing and Installing Automatic Transmission (GA8HP70Z)
24 00 023 Removing and installing automatic transmission (GA8HP70Z) N63Special 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 work:
^ Disconnect battery
^ Secure engine in installation position
^ Remove fan cowl
^ Remove both intake silencer housings
^ Remove exhaust system
^ Remove underbody protection at front and rear
^ Remove reinforcement plate
^ Remove front propeller shaft
^ Remove propeller shaft
Vehicles with Adaptive Drive:
Release screws (1).
Secure line (2) under cross-brace (3).
Remove cover (4).
Release screw (1) and remove crankshaft sensor.
Disengage cable from holder (2).
^ Release 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)
Release screw (1).
Disconnect hydraulic lines (2) to transmission oil cooler.
Installation Note:
Replace sealing rings.
Release screws (1).
Tightening torque 24 00 1AZ.
Crank engine at vibration damper until screw (1) is visible in recess.
Release all 6 screws (1) on torque converter.
Tightening torque 24 40 1AZ.
Press special tool 24 1 380 together and insert into recess in transmission housing.
Release screws.
Tightening torque 22 32 4AZ.
Release screw (1).
Tightening torque 22 32 5AZ.
Remove cross member.
Disconnect connector (1) from transfer box control unit (3) (longitudinal torque module).
Release screw (1).
Remove earth strap (2).
Lower engine with transmission.
Secure engine and transmission in lowered position with engine bridge.
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.
Release screws.
Tightening torque 24 00 1AZ.
Unflange transmission.
Installation Note:
Bore hole (1) in drive plate must be accessible from recess on engine oil sump.
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.
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