Overview - Drive Axle: Notes

Fig 1: Drive Axle Exploded View

Courtesy of AUDI

1. Cap
   • Carefully drive off using a drift
   • Replace if damaged
   • Adhesive surface must be free of oil and grease
   • Coat the sealing surface with Sealant:D 454 300 A2  before installing on CV joint. Refer to Inner CV Joint, Installing .
2. Circlip
   • Replace after removing
   • Insert in shaft groove
3. Inner CV Joint
   • Only replace completely
   • Check using the Vehicle Diagnostic Tester. Refer to INNER CV JOINT, CHECKING .
   • Grease quantity and type. Refer to Grease Quantity and Type .
   • The adhesive surfaces must be free of oil and grease.
   • When installing the CV joint, thinly coat the profile shaft splines with the grease used in the joint.
4. CV Boot
   • Without vent hole
   • Remove the cap carefully using a drift.
   • Check for tears and scuffing
   • Check the inner CV joint for damage. Refer to INNER CV JOINT, CHECKING .
   • The metal cap/CV joint sealing surfaces must be free of grease when installing.
5. Backing Plate
6. Bolts
   • M8: 30 Nm +90°
   • M10: 50 Nm + 90°
   • Replace after removing
7. Clamp
   • Replace after removing
   • Tensioning. Refer to Fig 2.
8. Drive Axle
   • Removing and installing. Refer to DRIVE AXLE, REMOVING AND INSTALLING .
9. Clamp
   • Replace after removing
   • Tensioning. Refer to Fig 2.
10. CV Boot
    • Without vent hole
    • Check for tears and scuffing
    • Check the outer CV joint for damage. Refer to OUTER CV JOINT, CHECKING .
    • The outer CV boot/metal cap sealing surfaces must be free of grease when installing
    • The CV boot/drive axle sealing surfaces must be free of grease when installing
11. Clamp
    • Replace after removing
    • Tensioning. Refer to Fig 2.
12. Circlip
    • Replace after removing
    • Insert into ring groove of shaft before installation (not visible on installed joint)
    • Before installing the CV joint, align the circlip centered to the opening facing upward.
13. Outer CV Joint
    • Only replace completely
    • Check using the Vehicle Diagnostic Tester. Refer to OUTER CV JOINT, CHECKING .
    • Removing. Refer to DRIVE AXLE, DISASSEMBLING AND ASSEMBLING, OUTER CV JOINT .
    • Installing: Drive onto shaft with a plastic mallet until compressed circlip rebounds.
    • Circlip must lie in joint chamfer when guiding in, guide with pliers if necessary.
    • Grease quantity and type. Refer to Grease Quantity and Type .
    • The CV boot/outer CV joint sealing surfaces must be free of grease when installing.
    • When installing the CV joint, thinly coat the profile shaft splines with the grease used in the joint.
14. Bolt
    • Replace after removing
    • Clean the threads in the CV joint with a thread tap.
    • Drive Axle Threaded Connection, Loosening and Tightening. Refer to DRIVE AXLE THREADED CONNECTION, LOOSENING AND TIGHTENING .

Clamp, Tensioning using Clamping PliersV.A.G 1682A

Fig 2: Tension the Clamp Using the : VAG1682A.

Courtesy of AUDI

-- Attach the Clamping Pliers:V.A.G 1682A  as shown.

• The jaws on the pliers must be centered -arrow- on the clamp -2-.

-- Tension the clamp by turning the spindle -1- with the torque wrench. Do not tilt the clamping pliers during this.

• Tightening specification: 20 Nm.