Rear Final Drive, Removing and Installing
Rear final drive, removing and installing
Special tools, testers and auxiliary equipment required
- Gearbox lifter VAG 1383 A with universal gearbox mounting VAG 1359/2
Removing
- Remove rear section of exhaust system as from clamp(s):
- Check whether there is a factory marking (paint dot) on drive shaft. If you do not find one, mark the position of the drive shaft flange -arrow A- relative to the rear final drive -arrow B- with a colored dot.
- Remove drive shaft from rear final drive
- Tie drive shaft to exhaust system bracket using a wire.
- Remove heat shields for drive axles at final drive.
- Unscrew drive axles from left and right from the flanges of the rear final drive.
- Place gearbox lifter VAG 1383 A with universal gearbox mounting 1359/2 under rear final drive and secure rear final drive.
- Unscrew securing bolts of mounting bracket of rear fin a I drive (arrows).
- Unscrew nuts -arrows- from left and right of cross piece. - Pull bolts out of subframe as far as possible.
Note: The bolts remain in the subframe.
- Slightly lower the rear section of the final drive.
- Move drive axles clear towards the top.
- Lower the rear section of the final drive.
- If the rear final drive is replaced then remove the rear cross piece arrows-.
Installing
Installation is carried out in the reverse order, note the following:
Notes:
- Always replace self-locking nuts.
- It is essential that the residues of locking fluid are cleaned out from the threaded holes in flange shaft on the rear final drive after removing the drive shaft. Otherwise there is a danger that new bolts will seize and then shear when removing them again.
- The threaded holes can be cleaned with a thread tap.
- Replace drive shaft bolts (self-locking).
- Replace gaskets on flange shaft (detach protective foil and stick gasket onto flange shaft).
- To prevent imbalance, the flanges must be installed so that the paint markings align -arrows A and B-. Install drive shaft.
- When lifting the rear final drive, position drive axle onto flange shaft.
- Lift final drive past the right-hand drive axle until installation position.
Note: All components must move freely.
- Push the rear final drive at the left-hand drive axle upwards -arrows A-.
- While doing so push the constant velocity joint of the drive axle outward until limit stop -arrow B- and lower towards flange shaft -arrow C.
- Unscrew securing bolts of mounting bracket of rear final drive (arrows).
- Push bolts in the subframe into cross piece until limit stop.
- Secure nuts on left and right at cross piece -arrows-.
- Observe the installation instructions
- Replace seal on drive shaft flange and tighten drive shaft to torque onward.
- Attach drive axles.
- Top up gear oil in rear final drive and check oil level.
- Install exhaust system and align stress-free
Part 1:
Part 2:
Tightening torques