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Home >> BMW >> 2014 >> M6 2D Convertible, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 813 (Automatic Transmission - Repair) >> Shift Valves, Parking Lock >> 24 34 565 Replacing Mechatronics (GA8HP70Z)

24 34 565 Replacing Mechatronics (GA8HP70Z)

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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,  an oil reservoir is installed in the mechatronics.
After completion of repair work, CHECK TRANSMISSION OIL LEVEL .
Use only approved transmission oil .
Failure to comply with this requirement will result in serious damage to the automatic transmission!

Necessary preliminary tasks: 

Remove panels (2).

Fig 1: Ground Strap And Retaining Plates
G06889433Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: The cable is not required for the transmission GA8HP70:
  • 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.
  • F12/F13.
Fig 2: Cable, Release Lever And Screw
G08487991Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (2).

Disconnect cable (1).

Installation note: 

Adjusting cable:

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 Automatic Transmission Connector
G09848209Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 4: Inserting Special Tool (24 2 390) In Sealing Sleeve
G09848385Courtesy of BMW OF NORTH AMERICA, INC.

Remove TRANSMISSION OIL SUMP .

Remove oil reservoir  . See 24 30 100 REPLACING OIL ACCUMULATOR (GA8HP45Z)  or 24 30 101 REPLACING OIL RESERVOIR (GA8HP70Z) .

Release screw (1) and unlock sealing cup with slide (2).

Tightening torque: 24 30 4AZ .

Fig 5: Sealing Cup And Screw
G08488059Courtesy of BMW OF NORTH AMERICA, INC.

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 6: Pulling Sealing Cup
G09848440Courtesy of BMW OF NORTH AMERICA, INC.

Only for vehicles without oil reservoir  .

Release all screws (1 and 2).

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: Mechatronics Screw
G08488061Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Only for vehicles with oil reservoir.

Release all screws (1 and 2).

Carefully remove mechatronics.

Installation note: 

Replace all screws (1 and 2).

Fig 8: Mechatronics Screws
G08488062Courtesy of BMW OF NORTH AMERICA, INC.

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

Installation note: 

Replace sealing cup (1).

Coat new gasket with automatic transmission fluid and install.

Fig 9: Sealing Cup
G08488063Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 10: Guide Pins (24 1 430)
G08488064Courtesy of BMW OF NORTH AMERICA, INC.

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
G08488065Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 12: Special Tool (24 1 430)
G08488066Courtesy of BMW OF NORTH AMERICA, INC.

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
G08488067Courtesy of BMW OF NORTH AMERICA, INC.
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.