Transmission Housing Separator Seals, Replacing: Procedure

WARNING: This page is about a different car, the 2018 Audi S7, 2017 Audi S7, and 2016 Audi S7. However, it is still accessible from the selected car via links, so may be relevant.

Secure the transmission on the Engine And Transmission Holder:VAS6095 . Refer to SECURING ON ENGINE AND TRANSMISSION HOLDER .

-- Remove the flywheel. Refer to FLYWHEEL, REMOVING AND INSTALLING .

-- Remove the dual clutch. Refer to DSG CLUTCH, REMOVING .

-- Remove the DSG Transmission Mechatronic -J743-. Refer to MECHATRONIC, REMOVING AND INSTALLING .

-- Remove the oil pump and the suction jet pump. Refer to OIL PUMP AND SUCTION JET PUMP, REMOVING AND INSTALLING .

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CAUTION:

Danger of causing damage to the transmission.

In the following procedures, the input shaft surface must not come in contact with hard objects. Damage to the sealing surface on the input shaft will result in leaks.

-- Place a punch on the shaft seal and drive in a small hole -arrow-.

-- Install a screw -arrow- with a large head into the hole in the shaft seal.

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-- Remove the outer shaft seal using a wide screwdriver in direction of -arrow-.

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-- Remove the inner shaft seal the same way.

CAUTION:

There is the danger of causing damage to the roller bearing behind the inner shaft seal.

Do not hit the punch too hard when making the hole in the inner shaft seal otherwise the bearing cage for the roller bearing behind it will get damaged.

NOTE:

Remove both shaft seals from the transmission side using a screwdriver in direction of -arrow- with the transmission disassembled.

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-- Position the new shaft seals for installation.

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NOTE:

The shaft seals -1- and -2- are supplied as one part, and must be coated with MTF before installing.

The spiral spring -arrow A- on the outer shaft seal -1- must face the dual clutch.
The spiral spring -arrow B- on the inner shaft seal -2- must face the transmission.

-- Clip the shaft seals together and install them.

-- Install the shaft seals flush from the clutch side using the Seal Installer - Clutch Housing :T40260 .

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NOTE:

The Seal Installer - Clutch Housing :T40260 can be extended using the Press Piece - 60mm :VW415A .

Installation is performed in reverse order of removal.

-- Install the oil pump. Refer to OIL PUMP AND SUCTION JET PUMP, REMOVING AND INSTALLING .

-- Install the DSG Transmission Mechatronic -J743-. Refer to MECHATRONIC, REMOVING AND INSTALLING .

-- Install the dual clutch. Refer to DUAL CLUTCH, INSTALLING .

-- Install the flywheel. Refer to FLYWHEEL, REMOVING AND INSTALLING .