Seal for crankshaft (ribbed belt side), replacing

WARNING: This page is about a different car, the 2006 Audi A8, 2005 Audi A8, and 2004 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.

Special tools, testers and auxiliary items required

Fig 1: Thrust Piece T40007

GW00026547

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Thrust Piece T40007

Fig 2: Seal Remover T40019

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Seal remover T40019

Removing

Remove front bumper → 63 - BUMPERS .
Remove lock carrier → 50 - BODY - FRONT .
Toothed belt, removing → Toothed belt, removing and installing .

Fig 3: Removing/Installing Center Bolt For Crankshaft Toothed Belt Gear

GW00026758

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove center bolt - 2 - for crankshaft toothed belt gear - 1 -.
Remove toothed belt gear.
Place inner part of oil seal extractor T40019 flush with outer part and secure using knurled-head screw.

Fig 4: Positioning And With Forced Pressure Bolt Into Oil Seal

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Lubricate threaded head of seal extractor, position and with forced pressure bolt into oil seal as far as possible.
Loosen knurled screw and turn inner portion against crankshaft until oil seal is pulled out.
Secure seal remover in a vise at the flat spots. Remove seal using pliers

Fig 5: Removing/Installing Thrust Washer From Crankshaft

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Mark front surface of thrust washer - arrow - using a waterproof felt pen.
Remove thrust washer from crankshaft.

Installing

Clean running and sealing surface.
Do not oil sealing lip and outer edge of seal before pressing in.

Fig 6: Pressing In Sealing Ring Using Thrust Piece T40007 And Center Bolt

GW00026549

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Press in sealing ring using thrust piece T40007 and center bolt.

Fig 7: Removing/Installing Thrust Washer From Crankshaft

GW00026548

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Rotate thrust washer and install on crankshaft.

NOTE:

The thrust washer is rotated so that the new sealing ring runs on new sealing path.
Marked front surface of thrust washer must now point toward engine.

Fig 8: Removing/Installing Center Bolt For Crankshaft Toothed Belt Gear

GW00026758

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Install toothed belt gear of crankshaft - 1 - with new center bolt - 2 -.

NOTE:

There must be no oil on the contact surface between the toothed belt sprocket and crankshaft.
Do not oil the bolt for crankshaft toothed belt sprocket.

Further installation is in reverse order of removal, note the following:

Install toothed belt (adjust timing) → Toothed belt, removing and installing .
Install lock carrier with attachments → 50 - BODY - FRONT .
Install torque support → Torque support (with torque support valve N382), assembly overview .

Torque specifications

Component		Nm
Toothed belt sprocket to crankshaft		200 + 180° ¹⁾²⁾

¹⁾ Replace bolt
²⁾ 180° Corresponds to one half rotation.