24 34 565 Replacing Mechatronics (GA8HP70Z) (N63)

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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

NOTE: After completing repair work:

Load specific data status with the BMW diagnosis system.

IMPORTANT:

On vehicles with automatic start/stop , a hydraulic impulse storage is installed in the Mechatronics.

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.

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary work:

Remove rear UNDERBODY PROTECTION .
Remove exhaust bracket.

Remove panels (2).

Fig 1: Identifying Retaining Plate

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

F01 / F02 as from production date 09/2010

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 necessary distance is obtained: A = at least 1 mm
Tighten down screw (2)

Fig 2: Identifying Screw, Lever And Cable

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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 .

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

Tightening torque: 24 30 4AZ

Fig 5: Removing Sealing Cup

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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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IMPORTANT: Only for vehicles without 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).

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

Fig 7: Identifying Mechatronics Mounting 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).

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

Fig 8: Identifying Sealing Sleeve

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Installation note:

Replace gasket (1).

Coat new seal with automatic transmission fluid and install.

Fig 9: Identifying Gasket

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

Fig 10: Installing Retaining Pins (24 1 430) At Screw Position

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Fit Mechatronics unit.

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

Fig 11: Pressing Release Lever

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

Fig 12: Installing Mechatronics Unit Wing Nuts

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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

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.

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

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