Camshaft seals, 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: Seal Remover 3240

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Seal remover 3240

Fig 2: Seal Installer 3241

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Seal installer 3241

Removing

Toothed belt, removing → Toothed belt, removing and installing .
Remove camshaft gears.

NOTE:

If shaft seal leaks, replace seals on both cylinder heads.

Align inner part of seal extractor 3240 flush with outer part.

Left cylinder head:

Remove inner part of seal extractor 2 rotations and lock using knurled-head screw.

Right cylinder head:

Remove inner part of seal extractor 7 rotations and lock using knurled-head screw.

Continued for both sides:

Fig 3: Identifying Seal Extractor 3240 Installed

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Lubricate threaded head of seal extractor 3240 , position and forcefully screw into oil seal as far as possible.
Loosen knurled bolt and turn inner part against camshaft until seal is removed.
Secure seal remover in a vise at flat spots. Remove seal using pliers
Clean running and sealing surface.

Installing

Slide oil seal onto cone of camshaft.

Fig 4: Pressing In Seal Until Stop Using Thrust Sleeve 3241/1 And Bolt 3241/6

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Press in seal until stop using thrust sleeve 3241/1 and bolt 3241/6.
Install toothed belt (adjust timing) → Toothed belt, removing and installing .