24 00 030 Removing and Installing Automatic Transmission (GA6HP19Z)

24 00 030 Removing and installing automatic transmission (GA6HP19Z) N54/N55

Special 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!

Important!





Aluminum screws/bolts must be replaced each time they are released.
Aluminum screws/bolts are permitted with and without color coding (blue).
For reliable identification:
Aluminum screws/bolts are not magnetic.
Jointing torque and angle of rotation must be observed without fail (risk of damage).





Necessary preliminary work:
^ Remove underbody protection with holder at front and rear.
^ Remove fan cowl with fan
^ Release the hose connector from the charge air cooler on the left and right.
^ Remove complete exhaust system
^ Remove heat shields
^ Support engine with jack when removing gearbox

Release screws (1).

Remove heat shield (2).

Disconnect connector (3).

Remove holder.








Remove cables (1) from holder (3).

Release screw (2) and remove holder (3).





Release and disconnect plug connectors (1) from brackets.

Unfasten screws (2).

Remove cover plate (3).

Tightening torque 24 11 2AZ.

Note:
Graphic similar

Release aluminum bolt (1) on right next to cable retaining plate.





Aluminum screws must be replaced.

Tightening torque 24 00 2AZ.





Grip clamping bush (1).

Slacken nut (2).

Detach clamp (3) downwards using a screwdriver.

Pull cable (4) out of holder.

Installation note:
Adjust gearshift lever.





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.

Unfasten screws (1) and nuts (2).

Remove transmission cross member.





Tightening torque 24 71 1AZ/2AZ.





Remove propeller shaft.





Release screw (1).

Disconnect hydraulic lines (2) to transmission oil cooler.

Installation note:
Replace sealing rings.

Release nut (1) and holder from transmission oil lines on oil sump.








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

Release all bolts of torque converter with special tool 24 1 110.

Crank engine further and release remaining 5 bolts.

Tightening torque 24 40 1AZ.





Prepare special tool (1) 24 4 161 (A) with shaped element (2) 24 4 165, side (B) to (A).

Insert special tool 24 4 160 into recess of transmission housing and clamp gently with screw (1).





Raise by turning screw (2) and clamp down.

Then tighten down screw (1).





^ Unlock and disconnect connector (1) by turning.
^ Do not touch pins.
^ Release cable from brackets.
^ Insert special tool 24 2 390 in sealing cup.

Repair work is described in Notes on mechatronics

Important!
Read and comply with important note.





Release screws.

Installation note:
Observe screw fastening sequence without fail.

Tightening torque, steel screws 24 00 1AZ.

Aluminum screws must be replaced.

Tightening torque and angle of rotation, aluminum screws/bolts 24 00 2AZ (7,8,9,10,11).





Installation note:
Tighten down screws/bolts to specified torque.

Attach special tool 00 9 120 for angle of rotation with magnet 00 9 130

Secure to vehicle underbody and screw down aluminum screws/bolts in accordance with angle of rotation.

Angle of rotation 24 00 2AZ.





Installation note:
Bore hole (1) in drive plate must be accessible from recess on engine oil sump.





Check that fitting sleeves 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 automatic transmission to engine.

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