Steering Rack Centring; Front Camber And Toe Adjustments - Audi RS 3 LMS SEQ User Manual

Steering rack centring

As the steering rack is electric, the steering angle sensor has to be electronically aligned with the wheels at
the aligning time.
Before aligning, it is necessary fix the steering wheel. To do it, it is recommended to use straps fixed between
the roll cage and the steering wheel.
The use of a rack centring stopper tool is not recommended because it is difficult to get the steering angle
sensor at 0 deg. The most important is to obtain the toe alignment with the sensor at 0 deg.
Proceed as following:

Switch on main and ignition switches.

Turn left and right to get the steer angle signal initialized.

Fix the steering wheel when the steer angle is 0 deg.

Switch off the ignition and main.

Proceed now with the alignment jobs.
Note:

With this process the steering angle signal will be 0 deg with the wheels aligned. This is very
important for the steering assistance behaviour.

Front camber and toe adjustments

The front suspension is very special on this car due its kinematic characteristics. To reach the front
suspension set-up value is recommended to proceed as following:
1. Car ride height: put the ride height at your choice through damper/spring adjustments.
2. Camber: to change the camber is recommended to move the steering rod first. The camber will
change quickly.
3. Toe: to change the toe enlarge or reduce the wishbone adjustment.
4. Check: adjust a second time if necessary.
Note:

Although this process seems strange, it is the best and faster way to obtain the camber and toe
adjustments.
Underneath the front wishbone there is a bolt to control the adjustment movement. Unblock the four screws
that are fixing the camber regulator plate and proceed to the adjustment.
Notes:

After any intervention, fix the wishbone regulator plate bolts in the right tighten.

Maintain the wishbone regulation plate clean and oiled between plates.
Front regulation table:
30