24 34 561 Replacing mechatronics (GA6HP26Z)

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required

24 2 390

NOTE: After completing work:

Load specific data version with DIS

IMPORTANT: After completion of work, CHECK TRANSMISSION OIL LEVEL .
Use only the approved transmission fluid: Shell M-1375.4 ; BMW part number 83 22 0 142 516 ; 20 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 ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary tasks:

Remove underbody protection at front and rear. See FRONT UNDERBODY PROTECTION and REAR UNDERBODY PROTECTION .
Remove exhaust system bracket

Remove plates (2).

Fig 1: Identifying Earth Strap And Plates

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Unfasten nut.

Disconnect cable (1).

Installation:

Adjusting cable:

Release nut
Adjust cable by means of holder (2) until spacing A ≥ 1 mm is obtained.
Tighten down nut

Fig 2: Locating Cable Nut
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Secure lever (1) with a cable tie (2) or wire in vertical position.

Fig 3: Securing Lever Using Cable Tie

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IMPORTANT: Mechatronics can be destroyed by static discharges. Therefore the contacts inside the plug must not be touched. Insert special tool immediately after work step.

Unscrew plug (1) and disconnect.

Fig 4: Disconnecting Plug

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

Fig 5: Inserting Special Tool (24 2 390) In Sealing Sleeve

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Remove TRANSMISSION OIL SUMP .

Unlock sealing sleeve with slide (1).

Fig 6: Sliding Sealing Sleeve

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Note position of sealing sleeve.

Pull out sealing sleeve (1).

Installation:

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

Lug on sealing sleeve must not be damaged!

Fig 7: Pulling Out Sealing Sleeve

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NOTE: GA6HP26Z TU

Release all screws (1 and 2).

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

Remove mechatronics.

Fig 8: Identifying Mechatronics Screws

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Installation:

Check gaskets (1 and 2) for damage, replace gaskets if necessary.

Coat new seals with automatic transmission fluid and install.

Fig 9: Identifying Gaskets

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Installation:

Insert screws (3) alternately until contact is made with each screw head.

Insert all further screws contact is made with each screw head.

Fig 10: Identifying Screw Head Screws

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NOTE: GA6HP26Z TU

IMPORTANT: Tighten down screws in order 1...13.
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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