BMW 7 Owners & Service Manuals

BMW 7 Series: Torque Converter

REMOVING AND INSTALLING/REPLACING TORQUE CONVERTER (GA6HP26Z) (N63)

Notes

IMPORTANT: After completion of work, check TRANSMISSION OIL LEVEL.

Use only approved TRANSMISSION OIL.

Failure to comply with this instruction will result in serious damage to the transmission.

Necessary preliminary tasks

  • Remove AUTOMATIC TRANSMISSION

Pull torque converter (1) by hand out of housing and set down vertically.

NOTE: When torque converter is removed, transmission oil flows out.

Torque Converter
Fig. 98: Identifying Torque Converter

Installation

When installing, do not damage shaft seal and bearing.

If the torque converter is not correctly installed, the driver of the pump impeller may be damaged when the transmission is flanged to the engine.

Installation

Push torque converter through shaft seal onto transmission shaft as far as it will go.

Press torque converter by hand into converter housing and turn in the process. Converter hub opening must snap into place in driver of pump impeller. Torque converter must be felt to slip inwards.

Calculate measurement between contact face and top edge of converter (1) with special tool 00 2 550.

NOTE: Measured value must be min. 25 mm.

Torque Converter
Fig. 99: Calculating Measurement Between Contact Face And Top Edge Of Converter Using Special Tool 00 2 550

REPLACING O-RING ON OIL PUMP (GA6HP19/GA6HP26Z

Notes

IMPORTANT: After completion of work, check TRANSMISSION OIL LEVEL.

Use only approved TRANSMISSION OIL.

Failure to comply with this instruction will result in serious damage to the transmission.

Necessary preliminary tasks

  • Remove AUTOMATIC TRANSMISSION
  • Secure transmission with TRANSMISSION RETAINING BRIDGE on assembly stand
  • Remove TORQUE CONVERTER
  • Remove MECHATRONICS

Remove adapter (1).

Installation: Note installation position.

Torque Converter
Fig. 100: Identifying Adapter

Release screws.

Tightening torque 24 31 2AZ.

Torque Converter
Fig. 101: Identifying Torque Converter Screws

Slide special tool 24 1 184 completely into puller 24 1 180.

Torque Converter
Fig. 102: Sliding Special Tool 24 1 184 Completely Into Puller 24 1 180

Attach special tool 24 1 180 and secure with screw (1).

Insert screw (2) and release oil supply unit from transmission housing.

Torque Converter
Fig. 103: Connecting Transmission Housing Screws Using Special Tool 24 1 180

Release screws.

Tightening torque 24 31 1AZ.

Torque Converter
Fig. 104: Identifying Transmission Housing Screws

Detach cover (1) from pump body (2).

Replace O-rings (3 + 4).

Installation: Pay attention to installation position of gears during disassembly.

Torque Converter
Fig. 105: Identifying Installation Position Of Gears

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