Flange Shaft and Driveshaft Seal on Rear Final Drive, Final Drive Removed

Flange Shaft and Driveshaft Seal on Rear Final Drive, Final Drive Removed

Special tools, testers and auxiliary items required

• Pressure plate (VW 402)

• Punch (VW 407)

• Punch (VW 412)

• Slide hammer (VW 771)

• Pulling hook (VW 771/37)

• Seal driver-front wheel bearing (40 - 20)

• Retainer (3145)

• Torque Wrench (V.A.G 1576)

• Friction meter (VAS 6222)

• Thrust piece (T10182)

• - 3 - - Kukko 17/2 Separating device

• Sealing grease (G 052 128 A1)

• Thread locking compound (D 154 100 A1)

• 2 Bolts M10 x 25

Removing

- Remove rear final drive. Refer to => [ Rear Final Drive ] Rear Final Drive.

- Set rear final drive on a workbench.

- Before loosening drive pinion nut, measure friction torque.

- Note this value. After the seal is replaced, friction torque must be restored to this value.





Use friction meter (VAS 6222).

- Remove hex nut for flange / driveshaft.





- Secure counterholder (3145) with 2 bolts M10 x 25 to flange/driveshaft - arrows -.

When loosening the nut of the flange/driveshaft, counterhold using counterholder (3145) (2nd technician).

- Mark installation position of flange/driveshaft - arrow A - relative to drive pinion - arrow B -.





- Remove driveshaft flange. Use a slide hammer (VW 771) if it is difficult.

- Pull out seal using slide hammer-complete set (VW 771) and additional part for VW771 (VW 771/37).

- Clean threads for the nut on the drive pinion.

Installing

- Coat outer edge of the seal with axle oil.

- Drive in new shaft seal as far as stop without tilting it.





- Fill area between sealing lip and dust lip halfway with sealing grease (G 052 128 A1).

Before installing flange/driveshaft, check the dust cap for damage. Replace the dust cap if necessary. Refer to => [ Dust Cap for Flange/Driveshaft, Replacing ] Dust Cap For Flange/Driveshaft, Replacing.

- Install flange/driveshaft, being aware of the marking from removal.

- Coat threads on the new nut with locking fluid (D 154 100 A1).

- Tighten new nut for drive pinion until friction torque measured prior to removal is attained.





When tightening the nut of the flange/driveshaft, counterhold using counterholder (3145) (2nd technician).

Increase tightening torque gradually, frequently measuring friction torque. The friction torque measured prior to removal must not be exceeded! Otherwise the rear final drive must be replaced!





- Install rear final drive => [ Installing ] Rear Final Drive.

- Check gear oil level in rear final drive. Refer to => [ Rear Final Drive Axle Oil Level, Checking ] Rear Final Drive Axle Oil Level, Checking.