Intake camshaft oil seal, replacing: Installing

WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, and 2003 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Depending on design, radial shaft oil seals with ring spring or socalled PTFE oil seals are used on intake camshaft.

Fig 1: Identifying A PTFE Seal (Teflon) & Inner Coil Spring Type Seal

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Distinguishing features: Conventional shaft oil seal has just one sealing lip - arrow 1 - which is pressed against sealing surface by a ring spring.
PTFE oil seal has a thread-like sealing surface - arrow 2 - , but no ring spring.
The sealing surface of the PTFE oil seal must not be stretched during installation. Consequently, the PTFE oil seal must not be inserted using the guide sleeve used for oil seals with ring spring.
PTFE oil seals must be installed according to the direction of shaft rotation (see - arrow - markings on oil seal). Incorrect direction of rotation results in oil leakage.

Installing PTFE oil seal

Fig 2: Checking Chamfer Edge On End Of Intake Camshaft For Burrs Or Sharp Areas

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Check chamfer edge - arrow - on end of intake camshaft for burrs or sharp areas.
If necessary smooth edges using an oil stone.

NOTE:

Do not oil sealing lip of oil seal.

Carefully push PTFE oil seal onto end of shaft by hand.

Installing oil seal with ring spring

NOTE:

Do not oil sealing lip of oil seal.

Fig 3: Guide Sleeve 3241/2 On Camshaft Pin

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Install guide sleeve 3241/2 onto camshaft journal.
Slide oil seal over guide sleeve.

All models

Fig 4: Pressing In Gasket Up To Stop Using Thrust Sleeve 3241/1 And Bolt 3241/3

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Push in oil seal as far as it will go using thrust sleeve 3241/1. To do so, use bolt 3241/3.
Install CMP sensor.
Install top section of toothed belt guard.
Install lock carrier → Lock carrier, moving to service position .