24 34 565 Replacing mechatronics (GA8HP70Z)

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. 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 version with ISTA.

IMPORTANT: In vehicles with Automatic Start/Stop , an oil reservoir is installed in the mechatronics.
After completion of repair work, CHECK TRANSMISSION OIL LEVEL .
Use only approved gearbox oil. See AUTOMATIC TRANSMISSION -- OPERATING FLUIDS .
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 rear underbody protection . See 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION or 51 47 491 REMOVING AND INSTALLING/REPLACING 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 GA8HP70 the transmission for:

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

Fig 2: Identifying Adjusting Gear Lever, Cable And Screw
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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 Cup

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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: Sliding 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 sleeve 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 (Vehicles Without Oil Reservoir)

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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 Mechatronics Screws (Vehicles With Oil Reservoir)

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Installation note:

Replace sealing sleeve (1).

Coat new seal with automatic transmission fluid and install.

Fig 9: Identifying Sealing Sleeve

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

Fig 10: Identifying Guide Pins Position

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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 By Pressing Release Lever

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

Fig 12: Screwing Down Wing Nuts On Mechatronics Unit

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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.