2434563 Replacing mechatronics (GA6L45R)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2010 BMW 328xi, 2010 BMW 328i, and 2010 BMW 323i. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: After completing the repair work:

Load specific data status with ISTA.

IMPORTANT: After completion of the repair work, CHECK GEARBOX OIL LEVEL .

Use only the approved transmission fluid: Dexron VI automatic transmission fluid ; BMW part number 83 22 0 397 114 (4 liters)

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 heat shields.
Support the automatic transmission with hydraulic lifting equipment.
Remove TRANSMISSION CROSS MEMBER .

Grip clamping bush (1).

Loosen nut (2).

Detach the clamp (3) towards bottom using a screwdriver.

Pull cable (4) out of holder.

Installation note:

ADJUST GEARSHIFT LEVER .

Fig 1: Identifying Clamping Bush, Cable, Retainer And Nut

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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 2: Turning Plug

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

Fig 3: Inserting Sealing Sleeve Using Special Tool (24 2 390)

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Remove TRANSMISSION OIL SUMP .

Unlock sealing sleeve with slide (1).

Fig 4: Identifying Sealing Sleeve

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Note position of sealing cup.

Pull out sealing cup (1).

Installation note:

Screw in sealing sleeve partially (lug in upper area). Turn until lug engages in groove of transmission. Slide in sealing cup.

Lug on sealing cup must not be damaged!

Fig 5: Pulling Out Sealing Cup

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Release all bolts (1) using special tool 24 4 350 .

Remove mechatronics.

Fig 6: Identifying Bolts

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Prior to installation of the new mechatronics:

The transmission position switches and the input and output speed sensor must be converted to the new mechatronics.

Unlock and disconnect the connector (1).

Release screw (2).

Remove and convert the transmission position switch (3).

Fig 7: Identifying Connector, Screw And Transmission Position Switch

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Tightening torque 24 30 1AZ .

Unlock and disconnect the connector (1).

Unfasten screws (2).

Detach and convert the input and output speed sensor from mechatronics.

Tightening torque 24 30 4AZ .

Fig 8: Identifying Input And Output Speed Sensor Plug With Screws

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Installation note:

Replace gasket (1).

Coat new gaskets with automatic transmission fluid and install.

Fig 9: Identifying Automatic Transmission Gasket

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Installation note:

Replace gaskets (1).

Coat new gaskets with automatic transmission fluid and install.

Fig 10: Identifying Automatic Transmission Gaskets

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IMPORTANT: Tighten down bolts in sequence (1 to 6).
Failure to comply with this requirement will result in serious damage to the automatic transmission!
Tightening torque 24 30 1AZ .

Fig 11: Automatic Transmission Valve Body (Mechatronics) Screws Tightening/Loosening Sequence

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