Bringing Vehicle Into Initial Position For Alignment

Bringing vehicle into initial position for alignment
Start position only for toe constant
Suspension 1BA, 1BC, 1 BE, 1BG, 1BH, 1 BP, 1BT, 1BJ

Note: Due to the different alignment platforms, it may be necessary to false the vehicle at the front axle so that it is possible to insert the VAG1925 spacer. After the vehicle is lowered, it should be bottomed out.





^ Put in distance caliber (VAG1925) with the adapters (VAG 1925/3 or VAG 1925/4), and unscrew both thread spindles until...
...they just come to rest against front bolts (arrow) of carrier.
This must not raise the vehicle!
The vehicle must be standing on its wheels!
The vehicle is now in initial position.
^ In vehicles with a level control system, turn on ignition and wait until vehicle height has settled.

Vehicle with sport suspension 1 BE





^ Apply axle lift to front jacking points and raise vehicle.
^ Place VAG1925/6 adapter on VAG1925/3 or VAG1925/4 adapter of spacer.
^ Lower vehicle on adapter.

The vehicle is now in initial position.

Vehicle with 1BB rough terrain suspension and 1 BY 4 - wheel air suspension

Note: Due to the different alignment platforms, it may be necessary to raise the vehicle at the front axle so that it is possible to insert the VAG1925 spacer. After the vehicle is lowered, it should be bottomed out.





^ Insert VAG1925 spacer using VAG1925/3 or VAG1925/4 adapters and VAG1925/6 adapter.
^ Unscrew both thread spindles until...





...they just come to rest against front bolts (arrow) of carrier.
The vehicle may not be raised as a result of this!
The vehicle is now in initial position.

On all suspension versions (except sport suspension)
^ This is the position in which the alignment program checks whether the existing toe-in per wheel corresponds to a specified value of + 10 ± 30' (rough preadjustment). If necessary, correct toe-in by adjusting the length of the tie rod.
Specifications for vehicle alignment page 44-21.
The alignment program only indicates a correction if required.

Raise vehicle. Suspension 1BA, 1BC, 1BE, 1BG, 1BH, 1BP, 1BT, 1BJ, 1BY

Note:
^ During the next step make sure that the wheels do not lose contact with the turntables when the vehicle is raised!
^ If this should happen anyway, the turntables may not be moved. Otherwise, the result of the measurement will be incorrect!

^ Apply axle lift to front jacking points and raise vehicle.

Note: Raise vehicle by 60 mm.





^ Push out cylinder in threaded spindles and fix with safety bolts.
Make sure that the safety bolts (arrows) are correctly positioned!
^ Lower vehicle onto distance caliper VAG1925.

Raise vehicle: Rough terrain suspension 1BB

Note:
^ During the next step make sure that the wheels do not lose contact with the turntables when the vehicle is raised!
^ If this should happen anyway, the turntables may not be moved. Otherwise, the result of the measurement will be incorrect!

^ Apply axle lift to the front jacking points and raise vehicle.

Note: Raise vehicle by 40 mm.

^ Take off adapter VAG1925/6.





^ Push out cylinder in threaded spindles and fix with safety bolts.
^ Remove adapter (VAG1925/6)
^ Lower vehicle on distance caliper.

Vehicles which have been in accidents
Before checking or adjusting the toe or the toe constant "S" on these vehicles, the center steering arm must be in midway position.
^ Put center steering arm in midway position as instructed by wheel alignment computer.

If you are performing an alignment on a vehicle which has been involved in an accident, you must use centering bolt VAG1907.
Left Hand Drive (LHD) vehicles page 48-88
^ Tighten VAG1907 by hand
^ Check whether the steering wheel is mounted as horizontal as possible on the steering column when the "wheels are straight".
^ Reposition steering wheel, if necessary. Otherwise centering of toothed shaft cannot be guaranteed.

Vehicles having an electronic stability program
If the steering wheel is repositioned on these vehicles, the basic setting of the steering angle sensor must be checked!
Repair Manual. Brake System On Board Diagnostic (OBD), Repair Group 01; OBD, electrical test; basic setting: zeroing the steering angle sensor -G85-.

Overview of work sequence for measuring wheel alignment
Observe the following work sequence
1 - Check camber at rear axle and adjust if necessary page 44-46.
2 - Check rear axle toe and adjust if necessary page 44-47.
3 - Check front axle camber and even out if necessary pane 44-50.
4 - If necessary, check behavior of the toe constant "S" on the front axle.

Whether the toe-in/toe constant "S" must be adjusted is described in the table on Page 44-21 and on page 44-37.
5 - Check front axle toe with vehicle in initial position and adjust if necessary page 44-55.
6 - If suspension adjustments were changed, zeroing of the steering angle sensor -G85- must be performed.(only vehicles with ESP)
Repair Manual, Brake System On Board Diagnostic (OBD), Repair Group 01: OBD. electrical test: basic setting: zeroing the steering angle sensor -G85-.