Audi A6 Typ 4G: Wheel Bearing Housing, Removing and Installing
Wheel Bearing Housing, Removing and Installing, FWD Vehicles
Special tools and workshop equipment required
- Torque Wrench 1332 40-200Nm -VAG1332-
- Torque Wrench -VAG1410-
- Grease
Removing
- Remove the rear wheel. Refer to → Chapter "Wheels and Tires".
- Disconnect the connector -2- from the rear speed sensor.
- Remove the bolt -1- and the bracket with the wires from the wheel bearing housing.
Caution
- Make sure the weight of the removed brake caliper cannot crush or damage the brake hose or brake line.
- Do not press the brake pedal whenever the brake caliper is removed.
- Remove the brake caliper and the brake rotor (refer to → Brake System; Rep. Gr.46) and then guide the brake rotor past the suspension and secure it to the body.
- Remove the bolt -1- and the rear speed sensor -2-.
Vehicles with Steel Suspension
- Remove the coil spring. Refer to → Chapter "Spring, Removing and Installing, Coil Spring".
Vehicles with Air Suspension
- Remove air spring → Chapter "Spring, Removing and Installing, Air Spring".
Continuation for All Vehicles
- Mark the installed position of the adjusting screw -1- to the wheel bearing housing -2-.
- Remove the nut -4- and the shim -3-.
- Remove the adjusting screw.
- Remove the bolt -4-.
- Remove the bolt -arrow- and the washer between the wheel bearing housing and the shock absorber.
- Remove the nut -3-.
- Remove the bolt -1- and the spacer -2-.
- Remove the wheel bearing housing.
Installing
Install in reverse order of removal. Note the following:
Note
- Bonded rubber bushings have a limited range of motion. Only tighten suspension bolts when vehicle is in curb weight or control position.
- For lifting the wheel bearing into curb weight position, vehicles with steel suspension. Refer to → Chapter "Wheel Bearing in Curb Weight, Lifting Vehicles with Coil Spring".
- For vehicles with air spring suspension, lift wheel suspension in control position. Refer to → Chapter "Wheel Bearing in Control Position, Lifting Vehicles with Air Suspension".
- Install wheel bearing housing.
- Insert the bolt -1- with the spacer tube -2- and install the nut -3- loosely.
Caution
Do not tighten the threaded connection using the nut -3-.
- Tighten the bolt -1-.
- Install the coil spring (refer to → Chapter "Spring, Removing and Installing, Coil Spring") or air spring (refer to → Chapter "Spring, Removing and Installing, Air Spring").
- Install the brake caliper and the brake rotor. Refer to → Brake System; Rep. Gr.46.
- Install the tie rod. Refer to → Chapter "Tie Rod, Removing and Installing".
- Install the upper transverse link. Refer to → Chapter "Upper Transverse Link, Removing and Installing".
- Install the lower transverse link. Refer to → Chapter "Lower Transverse Link, Removing and Installing".
- Install the speed sensor. Refer to → Brake System.
- Install rear wheel. Refer to → Chapter "Wheels and Tires".
- Axle alignment. Refer to → Chapter "Evaluating Need for Axle Alignment".
The axle alignment must be performed on a VW/Audi approved alignment stand.
Wheel Bearing Housing, AWD, Removing and Installing
Special tools and workshop equipment required
- Torque Wrench 1332 40-200Nm -VAG1332-
- Torque Wrench -VAG1410-
Removing
- Loosen the connection between the drive axle and wheel hub. Refer to → Chapter "Drive Axle Threaded Connection, Loosening and Tightening".
- Remove the rear wheel. Refer to → Chapter "Wheels and Tires".
- Disconnect the connector -1- from the Left Rear ABS Wheel Speed Sensor -G46- or the Right Rear ABS Wheel Speed Sensor -G44-.
- Remove the bolt -2- and the bracket with lines -3-, if equipped.
- Remove the bolt -2- and the rear speed sensor -1-.
Caution
- Make sure the weight of the removed brake caliper cannot crush or damage the brake hose or brake line.
- Do not press the brake pedal whenever the brake caliper is removed.
- Remove the brake caliper and brake rotor from the wheel bearing housing and (refer to → Brake System; Rep. Gr.46), guide them past the suspension and secure them to the body.
- Remove the bolts -1- and the cover plate -2-.
Vehicles with Steel Suspension
- Remove the coil spring. Refer to → Chapter "Spring, Removing and Installing, Coil Spring".
Vehicles with Air Suspension
- Remove air spring → Chapter "Spring, Removing and Installing, Air Spring".
Continuation for All Vehicles
- Mark the installed position of the adjusting screw -1- to the wheel bearing housing -2-.
- Remove the nut -4- and the shim -3-.
- Remove the adjusting screw.
- Remove the bolt -4-.
Note
Ignore -1, 2, 3 and 5-.
- Remove the bolt -arrow- and the washer between the wheel bearing housing and the shock absorber.
- Remove the nut -3-.
- Remove the bolt -1- and the spacer -2-.
- Tip the wheel bearing housing to the side and remove the drive axle from it.
- Remove the wheel bearing housing.
Installing
Install in reverse order of removal. Note the following:
Note
- Bonded rubber bushings have a limited range of motion. Only tighten suspension bolts when vehicle is in curb weight or control position.
- For lifting the wheel bearing into curb weight position, vehicles with steel suspension. Refer to → Chapter "Wheel Bearing in Curb Weight, Lifting Vehicles with Coil Spring".
- For vehicles with air spring suspension, lift wheel suspension in control position. Refer to → Chapter "Wheel Bearing in Control Position, Lifting Vehicles with Air Suspension".
- Install wheel bearing housing.
- Insert the bolt -1- with the spacer tube -2- and install the nut -3- loosely.
Caution
Do not tighten the threaded connection using the nut -3-.
- Tighten the bolt -1-.
- Install the coil spring (refer to → Chapter "Spring, Removing and Installing, Coil Spring") or air spring (refer to → Chapter "Spring, Removing and Installing, Air Spring").
- Install the brake rotor and the brake caliper. Refer to → Brake System; Rep. Gr.46.
- Install the tie rod. Refer to → Chapter "Tie Rod, Removing and Installing".
- Install the upper transverse link. Refer to → Chapter "Upper Transverse Link, Removing and Installing".
- Install the lower transverse link. Refer to → Chapter "Lower Transverse Link, Removing and Installing".
- Install the speed sensor. Refer to → Brake System; Rep. Gr.45.
- Install rear wheel. Refer to → Chapter "Wheels and Tires".
- Tighten the drive axle to wheel hub threaded connection. Refer to → Chapter "Drive Axle Threaded Connection, Loosening and Tightening".
- To determine if an axle alignment is required, see Table. Refer to → Chapter "Evaluating Need for Axle Alignment".
The axle alignment must be performed on a VW/Audi approved alignment stand.
