24 34 566 Replacing Mechatronics (GA8HP90Z)

24 34 566 Replacing mechatronics (GA8HP90Z)

Special tools required:





Important!
- It is mandatory to avoid skin contact with transmission oil and breathing in transmission oil vapors.
- Wear protective gloves.
- Ensure adequate ventilation





Note:
After completing work:
^ Load specific data status with the BMW diagnosis system





Important!
After completion of work, check gearbox oil level.
Use only approved transmission oil.
Failure to comply with this requirement will result in serious damage to the automatic transmission!





Important!
Read and comply with notes on protection against damage from electrostatic discharge (ESD protection).





Necessary preliminary work:
^ Remove rear underbody protection.





Remove panels (2).





Release screw (2).

Disconnect cable (1).

Installation note:
Adjusting cable:
^ Release screw (2).
^ Adjust cable by means of holder (2) until distance A ≥ 1 mm is obtained.
^ Tighten down nut





Important!
Mechatronics can be destroyed by static discharges. Therefore the contacts inside the connector must not be touched. Insert special tool immediately after operation.

Unscrew connector (1) and disconnect.





Insert special tool 24 2 390 in sealing cup (1).





Remove transmission oil sump.





Remove oil filter (1).

Replace gasket.

Installation note:
Wet seals with transmission oil.





Release screw (1) and unlock sealing cup with slide (2).

Tightening torque 24 30 4AZ.





Note position of sealing cup.

Pull out sealing cup (1).

Installation note:
Fit sealing cup in position (lug on inside).

Turn until lug engages in groove of transmission. Slide in sealing cup.

Lug on sealing cup must not be damaged!





Release all screws (1 and 2).
- 1 = M6 x 59 mm
- 2 = M6 x 20 mm

Remove mechatronics.

Installation note:
Replace O-rings for oil channels and wet with automatic transmission fluid.





Installation note:
Check gasket (1) for damage.

Replace the gasket (1) if necessary.

Coat new seal with automatic transmission fluid and install.





Screw in retaining pins 24 1 430 at screw position 4 and 9.





Fit mechatronics unit.

Fit shift claw (2) in gearshift shaft (3) by pressing release lever (1).





Screw down wing nuts as far as they will go on to the mechatronics unit.





Installation note:
Insert screws until screw heads make contact.

Remove retaining pins and fit remaining screws.

Important!
Tighten down screws in order 1...18.
Failure to comply with this requirement will result in serious damage to the automatic transmission!
Tightening torque 24 30 4AZ.