Rear Axle (All Wheel Drive), Servicing

Shock absorbers/springs, removing and installing
^ Remove wheel.





^ Counter-hold guide pins and remove attachment bolts from brake caliper housing.





^ Remove clamp -3- for stabilizer bar -2-.
1. Axle beam
4. Eccentric bolt





^ Remove coupling rod -1- from stabilizer bar.





^ Unscrew bolt -2- for link -1-.





^ Unscrew hex bolts (arrows) for shock absorber from body.





^ Unscrew bolt -3- for shock absorber on link -1- and remove shock absorber.
^ To remove shock absorber, pull wheel bearing housing down a little.

Installing
Installation is reverse of removal.
Bonded rubber bushings can only be turned to a limited extent. The bolted connections should only be tightened when vehicle is standing on ground.
Otherwise, rubber bushing will be stressed and have a shortened service life.

Tightening torques:
Stabilizer bar clamp to axle beam 25 Nm
Coupling rod to stabilizer bar 50 Nm
Link to wheel bearing housing 70 Nm + 90°
Shock absorber to body 45 Nm
Shock absorber to link 70 Nm + 90°

Always use new bolts.
Brake caliper to bracket 30 Nm

Always use new bolts.

Explanation of weight codes (Part numbers)
For improved alignment, spring assignment is divided into weight Production Relevant numbers.
Spring combination installed in vehicle is indicated by corresponding Part number on vehicle data sticker.





Example of a vehicle data sticker
^ A- shows Part No. for front axle
^ B- shows Part No. for rear axle
Vehicle data sticker is located in spare tire well.
Use Part No. to locate appropriate spring combination in Parts Supplier.





Part No. for suspension versions is shown in figure see (arrow).
1BA = standard suspension
1BE = sport suspension
1BD = Audi S6 sport suspension
1BP = rough terrain suspension 1 (trim position as in 1 BA, however with limited compression)
1BT = rough terrain suspension 1+ (about 7 mm raised position)
1BB = rough terrain suspension 2 (about 20 mm raised position)
1BG = suspension with level control system
1BH = USA
1BC = special-purpose vehicles
1BJ = suspension for light armor
Vehicles with special suspension (1BC) have the same expected values for wheel alignment as standard suspension (1 BA).
1BY = suspension for Allroad (all wheel drive air suspension)