Center Differential, Removing and Installing
Center differential, removing and installing
(Transmission installed)
Special tools and equipment
^ VAG 1383 A engine/transmission lifter with universal transmission holder VAG 1359/2
Removing
- Remove front exhaust system with catalytic converter.
- Remove heat shield for driveshaft from cover for Torsion differential (arrows).
- Unbolt driveshaft -1- from transmission and let rest on heat shield -2-
- Secure driveshaft using wire (arrow) to bracket -3- of fuel lines or support driveshaft using VAG1383A engine/transmission hoist.
- Drain center differential gear oil.
- Loosen mounting bolts -A- and -C- for transfer housing -2- in diagonal sequence and remove.
- Do not remove bolts -B-.
WARNING: Carefully pull center differential housing off of transmission toward rear. The Torsion differential could otherwise fall out of the transmission.
- Pull Torsion differential off output shaft toward rear.
Installing
Installation is reverse of removal, noting the following:
- Check for presence of dowel sleeves (arrows -A- and -B-).
- Install gasket
Note: Lightly coat sealing surface -D- with gear oil to prevent the seal from slipping.
- Slide cleaned magnets into cast holding pocket -1- in intermediate flange.
- Add 200 ml. gear oil to output housing (comparable to gear oil, topping up on removed and disassembled center differential).
- Install Torsion differential onto splines of output shaft and bottom spur gear while turning slowly.
- Check whether installed Torsion differential can be turned by hand.
- Install fully assembled transfer housing with installed spur gears and drive flange/drive shaft onto transmission flange.
- Insert bolts -A- and -C- for transfer housing -2- and tighten to final tightening torque in diagonal sequence in several stages.
- Bolt driveshaft to output flange/driveshaft
go to, Rear Final Drive 01R
- Install front exhaust system with catalytic converter.
- Fill transfer housing with gear oil and check oil level.
Tightening torques