Sealing Flange With Crankshaft Seal, Belt Pulley Side, Removing And Installing

WARNING: This page is about a different variant/trim than selected.

Special tools and workshop equipment required

Wrench - Pin Type 3212
Seal Installer - Crankshaft T40048
Hand drill with plastic brush attachment
Protective eyewear
Sealant.

Procedure

Fig 1: Counterhold Coolant Pump Ribbed Belt Pulley Using Pin Wrench 3212

Courtesy of AUDI OF AMERICA, LLC

-- Remove the ribbed belt. Refer to RIBBED BELT, REMOVING AND INSTALLING .

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

-- Remove the bolts -arrows- for the coolant pump ribbed belt pulley using a Wrench - Pin Type 3212 to counterhold.

-- Remove the bolts and remove the ribbed belt pulley.

-- Loosen and remove the bolts -arrows- in a diagonal sequence.

Fig 2: Front Sealing Flange Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Loosen the sealing flange on the ribbed belt side from the bond and then remove it.

NOTE:

Replace the ribbed belt side sealing flange.

CAUTION:

Risk of contaminating the lubricating system.

Cover open parts of engine.

WARNING:

Danger of eye injury.

Wear protective eyewear.

Fig 3: Cleaning Remaining Sealant With Rotating Plastic Brush

Courtesy of AUDI OF AMERICA, LLC

-- Remove the sealant residue on the cylinder block and the upper section of the oil pan, for example using a rotating plastic brush.

-- Clean the sealing surfaces; they must be free of oil and grease.

NOTE:

Note the expiration date of the sealing compound.

Fig 4: Cut Tube Nozzle At Front Marking

Courtesy of AUDI OF AMERICA, LLC

-- Cut the tube nozzle at the front marking (nozzle diameter: about 1.5 mm).

CAUTION:

The lubrication system could be plugged with excess sealant.

Do not apply sealant bead thicker than indicated.

-- Apply the sealant bead -arrow- to the clean sealing surface on the ribbed belt side sealing flange as shown in the illustration.

Fig 5: Applying Bead Of Sealant To Clean Sealing Surface Of Sealing Flange

Courtesy of AUDI OF AMERICA, LLC

The groove of sealing surface must be completely filled with sealant.
The sealant bead must be 1.5 to 2.0 mm above the sealing surface.

NOTE:

The ribbed belt side sealing flange must be installed within 5 minutes of applying the sealant.

-- Place the Assembly Device T40048/1 on the Pull Sleeve T40048/2 and slide the sealing flange -1- onto the pull sleeve.

Fig 6: Inserting Assembly Device T40048/1 Onto Pull Sleeve T40048/2 And Sliding Sealing Flange Onto Pull Sleeve

Courtesy of AUDI OF AMERICA, LLC

-- Remove the assembly device.

-- Then position the sealing flange with the Pull Sleeve T40048/2 installed on the crankshaft.

Fig 7: Placing Sealing Flange With Inserted Pull Sleeve T40048/2 Onto Crankshaft

Courtesy of AUDI OF AMERICA, LLC

-- Without tipping, push the sealing flange onto engine sealing surface and fasten. Refer to Figure.

Install in reverse order of removal. Note the following:

-- Install the coolant pump ribbed belt pulley. Refer to OVERVIEW - COOLANT PUMP AND THERMOSTAT .

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