Sealing Flange, Removing And Installing, Belt Pulley Side

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

Special tools and workshop equipment required

Oil Seal Guide Sleeve:T03004
Hand Drill with Plastic Brush Attachment
Protective Eyewear
Sealant. Refer to the Parts Information.

Procedure

-- Remove the vibration damper. Refer to VIBRATION DAMPER, REMOVING AND INSTALLING .

-- Remove the bolts -1 and 2-.

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-- Loosen the hose clamps -arrows- and remove the air duct pipe.

-- Remove the bolts -arrow-.

Fig 1: Ribbed Belt Pulley Side Sealing Flange - Tightening Specifications and Sequence

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-- Loosen the sealing flange from the bond.

Replace the sealing flange after removal.

CAUTION:

Risk of contaminating the lubrication system with sealant residue.

Seal the open section of the cylinder block with a cloth.

Fig 2: Cleaning Sealing Surfaces

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WARNING:

Risk of eye injury.

Wear protective eyewear!

-- Remove sealant residue on the cylinder block -1- with a rotating plastic brush for example.

-- Clean any oil and grease off of the sealing surfaces and crankshaft journal.

Do not apply any additional oil or grease to the sealing lip of the seal in the sealing flange.

Fig 3: Widening Shaft Seal Sealing Lip With T03004

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CAUTION:

There is a risk of damaging the seal in the sealing flange.

So that the seal sealing lip in the sealing flange does not turn outward during installation, the preparation work described in the following is required.

-- Widen the sealing lip of the seal in the sealing flange as shown using the :T03004 .

Small diameter to the seal.

-- After five minutes remove the :T03004 and install it upside down into the shaft seal.

Fig 4: Widening Shaft Seal Sealing Lip With T03004

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Larger diameter to the seal.
The :T03004 must be at the dimension -a- on the inside of the sealing flange.
Dimension -a- = approximately 3 mm.

Be sure to check the expiration date of the sealant.

Fig 5: Cut Tube Nozzle At Front Marking
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-- Cut the tube nozzle at the front marking (tube nozzle diameter: approximately 2 mm).

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CAUTION:

There is a risk that the lubrication system could be blocked by excess sealant.

Do not apply sealant bead thicker than indicated.

-- Apply the sealant bead -A- to the clean sealing surface on the sealing flange.

Sealant bead thickness: 3 mm.
The sealing flange must be installed within five minutes of applying the sealant.

-- Carefully mount the sealing flange using the :T03004 on the crankshaft journal while pressing on the cylinder block at the same time and paying attention to the left and right side of the centering bushing.

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-- Tighten the sealing flange.

-- Install the vibration damper. Refer to VIBRATION DAMPER, REMOVING AND INSTALLING .

Tightening Specifications

Refer to Figure
Refer to OVERVIEW - CHARGE AIR HOSE CONNECTIONS
Refer to OVERVIEW - CHARGE AIR SYSTEM .