Front Crankshaft Seal: Service and Repair

Crankshaft seal - ribbed belt side, replacing





Special tools, testers and auxiliary items required
^ Seal remover 3203
^ Counter-holder tool 3415
^ Assembly tool T10053
^ Torque wrench V.A.G 1331
^ Torque wrench V.A.G 1332

Removing
- Remove ribbed belt and tensioner.
- Remove toothed belt.





- Remove toothed belt crankshaft sprocket. To do this, lock toothed belt gear using counter support 3415.





- To guide Seal Remover 3203, thread center bolt into crankshaft by hand until stop.
- Remove inner portion of seal remover 3203 nine rotations (approx. 20 mm) from outer portion and secure with knurled-head screw.





- Lubricate threaded head of seal remover 3203, position and screw into oil seal as far as possible with forced pressure.
- Loosen knurled screw and turn inner portion against crankshaft until oil seal is pulled out.

Installing

Note: Phased in introduction of PTFE sealing rings (Distinguishing features: without ring spring, sealing lip designed wider). The sealing lip of this sealing ring may not be oiled or greased. An oil seal of the old version (with ring spring) can be replaced by a PTFE seal - but not the other way around.

- Before installing, remove oil remains from end of crankshaft with a clean cloth.





- Position guide sleeve T10053/1 on crankshaft pin.
- Slide sealing ring over guide sleeve onto crankshaft pin.





- Press in oil seal using pressure sleeve T10053 and bolt T10053/2 (M16 x 1.5 x 60) up to stop.





- Install toothed belt crankshaft sprocket and lock with counter support 3415.
- Tighten new center bolt to 90 Nm and turn an additional 90° (1/4 turn, additional turn may occur in several stages).

Note: The threads and shoulder must be free of oil and grease.

Install toothed belt and adjust valve timing.
- Installing ribbed belt and tensioner.