Removing and installing Mechatronics (GS7D36SG)

NOTE: When replacing Mechatronics:

Import present transmission data into new Mechatronics via ISTA/P .

IMPORTANT: It is essential to adhere to conditions of absolute cleanliness.
Any dirty parts must be cleaned before the hydraulic cap is loosened.
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:

Read out transmission data of Mechatronics to be replaced via ISTA/P .
Remove TWIN-CLUTCH GEARBOX .

Removal:

Place twin clutch transmission on a suitable surface.

To prevent the transmission oil from spilling out, make sure that the hydraulic cap points upward.

Remove HYDRAULIC CAP (1).

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Ensure correct installation position.

Press holder (2) together from right and release cable (1).

If fitted: Pull out CPA pin (7) to second locking position.

Release connector lock (6) and at same time detach connector (3) from retaining tabs (5) towards right.

IMPORTANT: Bridge (4) of connector must not break.
Wiring harness must be replaced if bridge breaks.

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CPA (1) in second locking position.

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Fig 1: Mounting Template Screws Loosening Sequence

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Place mounting template over Mechatronics.

Open screws 1-20.

Parts : Replace screws 1-12.

Screws 13-20 remain captive on module.

Remove mounting template.

Lift Mechatronics out of housing.

Remove metal bead gasket.

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IMPORTANT: Check the installation position of the centering pins (1).
The centering pins (1) of the Mechatronics remain in the housing.

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Installation:

Lift Mechatronics into housing.

Parts : Replace the metal bead gasket.

Fit mounting template.

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Fig 2: Mounting Template Screws Tightening Sequence

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IMPORTANT: Adhere without fail to the screwing sequence indicated on the template.
The screw length can be checked by means of the insert pockets shaped in the template.

Insert screws in sequence 1-12 and pre-tighten to 2 Nm.
Tighten down screws 1-12 to tightening torque and angle of rotation 28 60 2AZ .
Tighten down screws in sequence 13-20 to 5 Nm.
Remove mounting template.

Press CPA pin downward until it is flush with the housing.

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Parts : Replace the holder (2).

Install the cable (1).

Install the holder (2), retaining lug must point to the right.

Lock connector (3).

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Install the HYDRAULIC LID (1).

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Required follow-up work:

Install the TWIN-CLUTCH GEARBOX .
Read-in the transmission data of the replaced Mechatronics ISTA/P .