28 10 010 Removing and installing or replacing pump unit (GS7D36SG)

WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

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

Failure to comply with this instruction will result in serious damage to the twin-clutch gearbox.

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION) .

Necessary preliminary work

Remove TWIN-CLUTCH GEARBOX
Remove CLUTCH

Release screws (1).

Tightening torque, see 28 10 HOUSING WITH ADD-ON PARTS .

Remove oil separator (2).

Fig 1: Identifying Oil Separator With Screws

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Release screw (1).

Tightening torque, see 28 10 HOUSING WITH ADD-ON PARTS .

Disconnect connector (3).

Release combination sensor (2) from housing.

Fig 2: Identifying Connector And Combination Sensor With Screw

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Release screws (1) and (2).

Tightening torque, see 28 10 HOUSING WITH ADD-ON PARTS .

Installation note:

Observe installation position and screw length.

Replace sealing washer on screw (2).

Fig 3: Identifying Sealing Washer Screws

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Release screws (1).

Tightening torque see 28 10 HOUSING WITH ADD-ON PARTS .

Release oil pump with pressure pipe (2) and return line (3) from housing.

Installation note:

Replace flat seal (4).

During reinstallation O-ring remains on return line.

IMPORTANT: The pressure pipe must not be detached from the pump.

Fig 4: Identifying Return Line, Flat Seal And Pressure Pipe With Screws

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IMPORTANT: Before installing oil pump:
Depending on version, there is a bore hole and a recess for the O-ring (1).
If the bore hole is present, attention must be paid to ensuring the O-ring (1) is in the right installation position and correctly seated behind the pump.

Fig 5: Identifying O-Ring

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IMPORTANT:

Installation sequence, oil pump

Moisten O-ring with transmission oil
Position pump in transmission using centering sleeves.
Gently insert screws (1) with pressure pipe
Press in return line (2) until it audibly snaps into place
Screw in oil pump
The tightening sequence from 1-8 is mandatory

Fig 6: Identifying Return Line With Screws

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Installation note:

Centering sleeves must not be damaged or crushed.

Fig 7: Transmission Oil Pump Bolts Tightening/Loosening Sequence (GS7D36SG)

Courtesy of BMW OF NORTH AMERICA, INC.