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Home >> BMW >> 2011 >> Z4 35is >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 26 (Automatic Transmission - Repair (N52)) >> 2434 Shift Valves, Parking Lock >> 24 34 562 Replacing mechatronics (GA6HP19Z)

24 34 562 Replacing mechatronics (GA6HP19Z)

WARNING: This page is about a different variant/trim than selected.
NOTE: After completing work:
IMPORTANT: After completion of work, CHECK TRANSMISSION OIL LEVEL .
Use only 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 ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary tasks 

Brace clamping bush (1) and loosen nut (2).

Detach retainer (3) downwards using a screwdriver.

Pull cable (4) out of holder.

Installation: 

ADJUST SELECTOR LEVER .

Fig 1: Identifying Clamping Bush Cable, Retainer With Nut
G04726075Courtesy of BMW OF NORTH AMERICA, INC.
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 2: Disconnecting Plug
G04726084Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 3: Inserting Sealing Sleeve Using Special Tool (24 2 390)
G04726133Courtesy of BMW OF NORTH AMERICA, INC.

Remove TRANSMISSION OIL SUMP  .

Unlock sealing sleeve with slide (1).

Fig 4: Removing Sleeve With Slide
G04726136Courtesy of BMW OF NORTH AMERICA, INC.

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 5: Pulling Out Sealing Cup
G04726137Courtesy of BMW OF NORTH AMERICA, INC.

Release all screws (1 and 2).

Remove mechatronics.

Fig 6: Identifying Mechatronics Screws
G04726149Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

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

Coat new seals with automatic transmission fluid and install.

Fig 7: Identifying Gaskets
G04726152Courtesy of BMW OF NORTH AMERICA, INC.

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 8: Identifying Screw Head Screws
G04726153Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: GA6HP19Z 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 9: Automatic Transmission Valve Body (Mechatronics) Screws Tightening/Loosening Sequence
G06175576Courtesy of BMW OF NORTH AMERICA, INC.