Axle Alignment Procedure
Vehicle must only be measured in the control position or curb weight position, refer to TEST PREREQUISITES !
Check which suspension is installed in the vehicle. This information can be found on the vehicle data plate, refer to PRODUCTION CONTROL NUMBER (PR NUMBER) EXPLANATION .
Observe the Following Work Sequence!
- Drive the vehicle onto the alignment rack without tension. Move the vehicle back and forth if necessary to relieve any tension on the axle components.
- The steering wheel must be "evened out" into the center position before beginning the measuring and adjusting. Use Steering Wheel Scales VAS 6458 for this.
- Perform wheel run-out compensation, refer to WHEEL RUN-OUT COMPENSATION .
- Check the maximum steering angle, refer to MAXIMUM STEERING ANGLE, CHECKING .
- Check front axle camber and adjust if necessary, refer to FRONT AXLE CAMBER, ADJUSTING .
- Check rear axle camber and adjust if necessary, refer to REAR AXLE CAMBER, ADJUSTING .
- Check rear axle toe and adjust if necessary, refer to REAR AXLE TOE, ADJUSTING .
- Check the front axle toe angle and adjust if necessary, refer to FRONT AXLE TOE, ADJUSTING .
If the adjustments on the suspension were changed, then perform a zero compensation on the Steering Angle Sensor -G85- with the Vehicle Diagnostic Tester.
Perform a basic setting on the dynamic steering, if equipped, if adjustments on the front and/or rear axles were changed, refer to DYNAMIC STEERING BASIC SETTING .
If the rear axle setting was corrected, then the ACC sensors must be adjusted on vehicles with ACC (refer to ADAPTIVE CRUISE CONTROL (ACC), CALIBRATING ), the lane assist must be calibrated on vehicles with lane assist (refer to DRIVER ASSISTANCE SYSTEMS FRONT CAMERA, CALIBRATING ), the night vision system must be adjusted/calibrated on vehicles with infrared system (refer to INFRARED SYSTEM, CALIBRATING ) and the rearview camera must be calibrated on vehicles with a rearview camera, refer to REARVIEW CAMERA SYSTEM, CALIBRATING .