Left Flange Shaft Oil Seal, Replacing

Left flange shaft oil seal, replacing
Special tools and workshop equipment required





^ Oil seal extractor lever VW 681
^ Punch 2062
^ Puller T10037
^ Waste fluid container

Removing
^ Transmission installed
^ Remove left front wheel.





^ Loosen bolts and quick-release fasteners -1 3- and take off front and rear sound insulation.





^ If equipped, loosen bolt -1- on sound insulation cover above left drive shaft.
^ Disengage retainer -2- and remove sound insulation cover.
^ If equipped, unbolt heat shield for left drive shaft.
^ Remove left drive shaft
- Place container under transmission.

Note: It is essential to pullout flange shaft evenly and straight, without applying one-sided force, to prevent damage to the needle bearing (polygon bearing) or differential





- Screw lower support of puller T10037 into housing (arrow) and remove flange shaft.





Note: Always replace flange shaft circlip.

^ Clamp flange shaft in vice, using vice clamps. Use new circlip -A- to press old circlip out of groove in flange shaft.





- Pullout flange shaft oil seal with VW 681.

Note: Do not damage seating surfaces for oil seal.





Assembling flange shaft with polygon bearing
1. Flange shaft
2. Needle bearing (polygon bearing)
3. Spacer ring
4. Circlip
5. Spacer ring - not installed

Note:
^ If the polygon bearings do not run smoothly with the flange shaft removed, this does indicate that the bearings are faulty. A test for noisy bearings can only be performed with the bearings installed.
^ Inspect for signs of damage to polygon bearings (such as cracking in outer race).
^ The polygon bearings can only be replaced together with the flange shaft.

Installing
Install in reverse sequence, note the following points
- Lightly lubricate outer circumference and sealing lip of oil seal with gear oil.
^ Installation position: open side of seal toward transmission





- Drive in new oil seal for left-hand flange shaft to a depth of 5.5 mm below outer surface of cover using 2062, keep seal straight when installing.

Note: If the old flange shaft is reinstalled after the repair, the oil seal must be driven in to a depth of approximately 6.5 mm so that the new seal does not run on the same contact surface as the old one.

^ Knock flange shaft in with drift VW 295.
^ Install drive shaft.
^ Check oil level in front final drive.





Tightening torque