Removing and installing or replacing pump unit (GS7D36SG)

IMPORTANT: After completion of work, check GEARBOX OIL LEVEL .
Use only the approved transmission oil.
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 DISCHARGE (ESD PROTECTION) .

Necessary preliminary work:

Remove TWIN-CLUTCH GEARBOX .
Remove CLUTCH .

Removal:

Release screws (1).

Remove oil separator (2).

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Release screw (1).

Release combination sensor (2) from housing.

Disconnect connector (3).

IMPORTANT: Do not where possible release cable (4) from bracket (5).

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IMPORTANT: To disconnect the combination sensor connector:
Press lock together in area (1) and simultaneously detach connector.

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Release screws (1) and (2).

Observe installation position and screw length.

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Release screws (1).

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

Replace flat seal (4).

During reinstallation O-ring remains on return line.

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

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Installation:

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.

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Parts : Replace flat seal (1).

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IMPORTANT: Installation sequence, oil pump:
The centering sleeves must not be damaged or crushed.

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

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IMPORTANT: Tightening sequence for oil pump:

Parts: Replace sealing washer on screw (8).
Position 1 - 8 to final torque
Position: 1, undo once again and to final torque
Position: 1, 2, 5, 6, 7, 8, Tightening torque: 28 10 8AZ
Position: 3, 4 Tightening torque: 28 10 9AZ

Fig 1: Oil Pump Screws Tightening Sequence

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Lock the combination sensor.

Make sure it engages in area (1).

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Parts : Replace screw (1).

Lock connector (3).

Install the combination sensor (2)

Insert and tighten the screw (1).

Tightening torque 28 10 6AZ .

Parts : If the bracket (5) has loosened, replace the aluminium screw (6).

Tightening torque 28 10 11AZ .

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Install oil separator (2).

Insert screws (1) and tighten.

Tightening torque 28 10 7AZ .

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Required follow-up work:

Install the CLUTCH .
Install TWIN-CLUTCH GEARBOX .