Lifting The Front Axle To The Curb Weight Position
Special Tools And Workshop Equipment Required
- Engine and Gearbox Jack:VAS6931
- Tensioning Strap:T10038
- Engine/Gearbox Jack Adapter - Wheel Hub Support:T10149
All bolts at suspension parts with bonded rubber bushings must always be tightened in curb weight position (unloaded condition).
Bonded rubber bushings have a limited range of motion.
Axle components with bonded rubber bushings must be brought into the position they will be in during driving before tightening (curb weight position).
Otherwise, the bonded rubber bushing will have tension, which will reduce the service life.
By raising appropriate suspension using Engine and Gearbox Jack:VAS6931 and Engine/Gearbox Jack Adapter - Wheel Hub Support:T10149 , this position can be simulated on the hoist.
Before Lifting the Axle on One Side, the vehicle Must Be Secured on Both Sides to the Lift Arms of the Lift Using Tensioning Strap:T10038 .
The vehicle could fall off the hoist if it is not secured.
-- Turn the wheel hub until one of the holes for the wheel bolts is on top.
-- Install Engine/Gearbox Jack Adapter - Wheel Hub Support:T10149 with wheel bolt on wheel hub.
Tightening of the Respective Bolts/Nuts Must Then Only Occur After Dimension -a- Between The Wheel Hub Center and the Lower Edge of Wheel Housing Has Been Attained.
Dimension -a- is dependent on standing height of installed suspension:
| Chassis (1) | Standing Height -a- in mm | ||
|---|---|---|---|
| Steel spring shock absorber 1BA/1BE | 478 ± 10 mm | ||
| Steel spring shock absorber 1BB | 488 ± 10 mm | ||
| Air spring shock absorber 1BK/1BY | 475 ± 10 mm | ||
| Air spring shock absorber 2MA | 450 ± 10 mm | ||
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-- Lift the wheel bearing housing using the Engine and Gearbox Jack:VAS6931 until dimension -a- is reached.
- Do not lift or lower vehicle with the engine and gearbox jack still under the vehicle.
- Do not leave the Engine and Gearbox Jack:VAS6931 under the vehicle any longer than necessary.
-- Tighten the bolts and nuts.
-- Lower the wheel bearing housing.
-- Remove the Engine and Gearbox Jack:VAS6931 from under the vehicle.
-- Remove Engine/Gearbox Jack Adapter - Wheel Hub Support:T10149 .