24 34 564 Replacing mechatronics (GA8HP45Z)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

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 function, an oil reservoir is installed.
After completion of repair work, CHECK TRANSMISSION OIL LEVEL .
Use only APPROVED GEARBOX 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 tasks:

Remove TRANSMISSION OIL SUMP .
Remove OIL RESERVOIR .

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 1: Disconnecting Connector

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

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

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Release screw (1).

Tightening torque 24 30 4AZ .

Unlock sealing sleeve with slide (2).

Fig 3: Removing Sealing Sleeve

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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 4: Pulling Out Sealing Cup

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IMPORTANT: Only vehicles without oil reservoir.

Release all screws (1 and 2).

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

Remove mechatronics.

Installation note:

Fig 5: Identifying Mechatronics Screws

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Replace all screws (1 and 2).

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

IMPORTANT: Only 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 6: Identifying Mechatronics Unit Screws

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Installation note:

Replace gasket (1).

Coat new gasket with automatic transmission fluid and install.

Fig 7: Identifying Automatic Transmission Gasket

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Screw in guide pins 24 1 430 at screw position 4 and 9 (see Fig 11).

Fig 8: Screwing Guide Pins (24 1 430)

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Fit mechatronics unit.

Feed shift dog (2) into gearshift shaft (3).

Fig 9: Installing Shift Dog Into Gearshift Shaft

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

Fig 10: Identifying 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 down screws in order 1...18.

Tightening torque 24 30 4AZ .

Fig 11: 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 screws in the order of 1...16 and 18.
Tightening torque 24 30 4AZ .

Installation note:

Install OIL RESERVOIR if necessary.