Axle Shaft With Constant Velocity Joint, Servicing
Grease quantity and type
Constant velocity joints are packed with grease G 000 603:
Inner joint
NOTE: If necessary, re-grease joint when replacing CV joint boot.
1. 2 Self-locking 12-point nut
- Tightening
- Any paint residue and/or corrosion on thread of outer joint must be removed before nut is installed.
CAUTION: The vehicle must be standing on its wheels when loosening or tightening the 12-point nut. Otherwise there is a risk of an accident.
3. Axle shaft, right and left (tube shaft)
- Left axle shaft is shorter!
4. Bolt
- Always replace
- M8 x48: 20 Nm (15 ft. lbs.) + 90°
- M10x52: 50 Nm (37 ft. lbs.) + 45°
- The initial tightening torque of the bolts M8 and M10 must be carried out in two steps. First apply a torque of 10 Nm and then the corresponding torque.
5. Plate
6. Hose clip
- Tightening see Fig. 9
- Always replace
7. Protective boot for inner CV joint
- Material: Hytrel (Polyelastomer)
- No vent hole
- Check for tears and chafing
- Drive off CV joint using drift
- Before installing on CV joint, coat sealing surface with D 454 300 A2.
8. Protective boot for inner CV joint
- Material: Rubber
- With vent hole
- Check for tears and chafing
- Drive off CV using drift
- Installation position for left axle shaft see Fig. 6
- Installation position for right axle shaft see Fig. 7
- Before installing on CV joint, coat sealing surface with D 454 300 A2.
9. Spring washer
- Installation position see Fig. 3
10. Inner CV joint
- Only replace complete
- Pressing off see Fig. 2
- Pressing on see Fig. 5
- Greasing
- Checking
11. Gasket
- Always replace
- Adhesive surface on constant velocity joint must be free of oil and grease!
- Remove protective foil and stick gasket on joint.
12. Circlip
- Use VW161A to remove and install
13. Axle shaft, left (solid shaft)
14. Clamp
- Tensioning see Fig. 9
- Always replace
15. CV joint boot
- Check for tears and chafing
- Material: Hytrel (polyelastomer)
16. Vibration damper
- Applies only for some vehicle versions
17. Hose clip
- Tensioning with pliers VAG 1682 see Fig. 8
- Always replace
18. Spring washer
- Installation position see Fig. 4
19. Bolt
- 35 Nm (26 ft. lbs.)
20. Heat shield
21. Thrust washer
- Installation position see Fig. 4
22. Circlip
- Insert in shaft groove
- Always replace
23. Outer CV joint
- Only replace complete
- Removing see Fig. 1
- Installing: drive on shaft to stop with plastic hammer
- Greasing
- Checking
Fig. 1 Outer CV joint, removing
- Drive joint off axle shaft with firm blow from aluminum hammer.
Fig. 2 Inner CV joint, pressing off
NOTE:
- Support ball hub while pressing off
- Use drift to remove boot
Fig. 3 Spring washer on inner joint, installation position
1. Spring washer
Fig. 4 Spring washer and thrust washer on outer joint, installation position
1. Spring washer
2. Thrust washer
Fig. 5 Inner CV joint, pressing on
- Press CV joint on to stop.
- Insert circlip.
NOTE: Chamfer on ball hub inner diameter (splines)faces contact shoulder on axle shaft.
Fig. 6 CV joint boot (left axle), installation position
Dimension -a- = 17 mm (0.67 in.)
NOTE: Before installing boot mark position, dimension -a-, (for example: paint or adhesive tape). Do not damage paint surface.
Fig. 7 Boot for CV joint (right axle), installation position
- Vent chamber -A- must seat on tube.
B - Vent hole
Fig. 8 Clamp for CV joint boot (outer), tightening
- Install VAG 1682 CV joint boot clamp tool, as shown in illustration. Ensure jaws of pliers seat in corners (arrow B) of clamp.
- Tighten clamp by turning spindle with torque wrench (do not twist pliers).
NOTE:
- Due to hard material, it is only possible to tighten clamp with VAG 1682 pliers. Tightening torque: 20 Nm (15 ft. lbs.). Use torque wrench -C- with 5 - 50 Nm (5 - 40 ft. lbs.) range (e.g. VAG 1331).
- Ensure spindle -A- is not tight. If necessary lubricate with MOS 2 grease. If it's tight e.g. dirty, required torque for clamp will not be achieved in spite of correct torque settings.
Fig. 9 Clamp for CV joint boot (inner, small dia.), tightening