Wheel Bearing At Standard Vehicle Height, Lifting Vehicles With Air Suspension

Special tools and workshop equipment required

Engine and Gearbox Jack:VAS6931

Fig 1: Engine and Gearbox Jack VAS6931 or VAG1383A
Courtesy of AUDI OF AMERICA, LLC
Support Device:VAS6931/1 , not illustrated
Tensioning Strap:T10038

Fig 2: Identifying Tensioning Strap T10038
Courtesy of AUDI OF AMERICA, LLC

All chassis component bolts with bonded rubber bushings must be tightened at standard vehicle height. Refer to STANDARD VEHICLE HEIGHT FOR AXLE ALIGNMENT ON VEHICLES WITH AIR SUSPENSION, CHECKING .

Bonded rubber bushings have a limited range of rotation. Axle components with bonded rubber bushings must be brought into the position they will be in when driving before they are tightened (standard vehicle height).
Otherwise, the bonded rubber bushing will have tension, which will reduce the service life.
By raising the corresponding suspension using the Engine and Gearbox Jack:VAS6931 and Support Device:VAS6931/1 , this position can be simulated on the hoist.

Procedure

-- Note the measurement. This will be needed when tightening the bolts/nuts.

CAUTION:

There is a risk of accident from the spring force of the air suspension if the vehicle slides off the hoist.

When lifting the vehicle on the hoist, the spring force of the air suspension remains in full effect.

- Before raising the wheel bearing at standard vehicle height, reduce the spring force of the air suspension by completely bleeding the system.

Before the respective suspension is lifted, the vehicle must be tied down to the hoist lifting arms with the Tensioning Strap:T10038 .

-- Bleed the air suspension system. Refer to AIR SUSPENSION SYSTEM, FILLING AND BLEEDING .

-- Remove the wheel. Refer to WHEELS AND TIRES .

-- Install the Support Device:VAS6931/1 -A- to the brake rotor -1- using two wheel bolts -2-.

Courtesy of AUDI OF AMERICA, LLC

-- Position the Engine and Gearbox Jack:VAS6931 -B- on the support device.

-- Lift the wheel bearing housing, until the dimension -a- has been reached.

Fig 3: Determining Height Dimension -a-

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

There is a risk of an accident when lowering or lifting the vehicle when the engine and gearbox jack is underneath it.

- Never lift or lower the vehicle when the engine and gearbox jack is underneath it.

- Never leave the engine and gearbox jack under the vehicle any longer than necessary.

-- Tighten the applicable bolts and nuts.

-- Lower the wheel bearing housing.

-- Move the Engine and Gearbox Jack:VAS6931 to the side

-- Fill the air suspension system. Refer to AIR SUSPENSION SYSTEM, FILLING AND BLEEDING .

The vehicle may be removed from the vehicle hoist only after the air springs have been filled again.