24 34 565 Replacing mechatronics (GA8HP70Z)

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Special tools required:

IMPORTANT:

Do not let skin come in contact with transmission oil and do not inhale fuel vapors.
Wear protective gloves.
Ensure adequate ventilation.

NOTE: After completing repair work:

Load specific data status with the BMW diagnosis system

IMPORTANT: In vehicles with Automatic Start/Stop , an oil reservoir is installed in the mechatronics.
After completion of repair work, check transmission oil level. Refer to CHECKING TRANSMISSION FLUID LEVEL .
Use only approved gearbox oil. Refer to APPROVED AUTOMATIC TRANSMISSION FLUIDS FOR INITIAL FILLINGS AND CORRECTING FLUID LEVELS .
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). Refer to 61 35... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) .

Necessary preliminary tasks

Remove rear UNDERBODY PROTECTION .
Remove exhaust bracket.

Remove panels (2).

Fig 1: Identifying Ground Strap And Retaining Plates

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IMPORTANT: The cable is not required for the transmission GA8HP70:

F01/F02 as from production date 09/2010
F04 Production date from 04/2010
F07 from production date 03/2010
F10/F11 as from production date 06/2010
F12/F13

Fig 2: Identifying Screw, Cable And Lever

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Release screw (2).

Disconnect cable (1).

Installation note:

Adjusting cable:

Release screw (2).
Bring release lever (3) into contact with selector shaft by pressing slightly. Distance B=0 mm.
Adjust cable (1) by means of holder until distance A ≥ 1 mm is obtained.
Tighten screw (2).

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.

Fig 3: Disconnecting Connector

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

Fig 4: Inserting Special Tool (24 2 390) In Sealing Sleeve

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Remove TRANSMISSION OIL SUMP .

Remove oil reservoir . See 24 30 100 REPLACING OIL ACCUMULATOR (GA8HP45Z) or 24 30 101 REPLACING OIL RESERVOIR (GA8HP70Z) .

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

Tightening torque 24 30 4AZ .

Fig 5: Removing Screw And Sealing Cup With Slide

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Note position of sealing cup.

Pull out sealing cup (1).

Installation note:

Replace sealing cup (1).

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!

Fig 6: Pulling Out Sealing Cup

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Only for vehicles without oil reservoir.

Release all screws (1 and 2).

1 = M6 x 59 mm
2 = M6 x 20 mm

Remove mechatronics.

Installation note:

Replace all screws (1 and 2).

Replace O-rings for oil ducts on the mechatronics unit and wet with automatic transmission fluid.

Fig 7: Identifying Mechatronics Screws

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IMPORTANT: Only for vehicles with oil reservoir.

Release all screws (1 and 2).

1 = M6 x 59 mm
2 = M6 x 20 mm

Carefully remove mechatronics.

Installation note:

Replace all screws (1 and 2).

Fig 8: Identifying Mechatronics Screws

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Replace O-rings for oil ducts on the mechatronics unit and wet with automatic transmission fluid.

Installation note:

Replace sealing cup (1).

Coat new gasket with automatic transmission fluid and install.

Fig 9: Identifying Gasket

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

Fig 10: Identifying Guide Pins (24 1 430)

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Fit mechatronics unit.

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

Fig 11: Fitting Shift Claw In Gearshift Shaft

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

Fig 12: Identifying Special Tool (24 1 430)

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Observe different screw lengths.

Failure to comply with this requirement will result in serious damage to the automatic transmission!

Installation note:

Insert screws 8 and 14 until screw heads make contact.

Remove guide pins and fit remaining screws.

Tighten screws in sequence 1....18.

Tightening torque 24 30 4AZ .

Fig 13: Automatic Transmission Valve Body (Mechatronics) Screws Tightening/Loosening Sequence

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IMPORTANT: In vehicles with an oil reservoir, the screw 17 (M6 x 59 mm) must be secured with the oil reservoir.

Tighten in the order of 1...16 and 18.

Tightening torque 24 30 4AZ .

Installation note:

Install OIL RESERVOIR if necessary.