Adjust Front Axle Toe

WARNING: This page is about a different variant/trim than selected.

Remove brake air spoiler -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Brake air spoiler
1. 1.1 Cut tie-wrap -2- and pull brake air spoiler -1- off the tie-rod ball.
Information

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Steering wheel alignment gauge (example)
- For fast and reliable steering wheel alignment in centre position, use a > VAS 6826 - Steering wheel balance (with integrated angle measurement box).
Fix the steering wheel -A- in the centre position with the steering wheel lock. Use only steering-wheel holders that do not project into the area of the airbag unit -B- . Shorten the guide rod of the steering-wheel holder at the top if necessary -Arrow- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Steering wheel holder (example)
Adjust front axle toe.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Front axle tie rod
1. 3.1 Check toe value.
  > 4495TW SETTING VALUES FOR SUSPENSION ALIGNMENT
  CAUTION:
  Electrically moved components
  - Danger of limbs being trapped
    → Switch off electric power to drive motor.
    
    → Make sure it does not switch on again.
    
    → Check that there is no electric charge.
  Information
  
  The PDCC system can be active when the ignition is switched on (even when the vehicle is stationary). To avoid injury/crushing, only work near the anti-roll bar, lower trailing arm and bellows of the steering gear when the ignition is switched off and always allow for the run-on time of 60 seconds.
2. 3.2 Loosen lock nut -1- and counter at the tie-rod ball -2- while doing this.
  Information
  
  Make sure that the bellows are not twisted after turning the tie rods!
3. 3.3 Adjust the toe at the left and right wheel at the hexagon -3- .
  > 4495TW SETTING VALUES FOR SUSPENSION ALIGNMENT
4. 3.4 Tighten lock nut -1- to > Tightening torque 80 Nm (59 ftlb.) and counter at the tie-rod ball -2- while doing this.
5. 3.5 Check toe value again.
Install brake air spoiler -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Brake air spoiler
1. 4.1 Push brake air spoiler -1- onto the tie-rod ball and fit new tie-wraps -2- in the brake air spoiler -1- .
2. 4.2 Tighten tie-wrap -2- using > VAS 6927 - tie-wrap pliers .

Subsequent work

WARNING: Steering-angle sensor not calibrated or calibrated incorrectly

Unexpected vehicle handling
Steering-angle sensor does not function
Malfunction in steering-angle sensor
→ After working on wheel suspension parts, when replacing the steering-angle sensor, and after changing the wheel alignment values, calibrate the steering-angle sensor using the PIWIS Tester .

→ Keep the front wheels in straight-ahead position on the measuring platform during calibration.

→ For vehicles with electromechanical steering, also re-teach the electric steering lock settings.

If the previous wheel alignment values (on rear and/or front axle) were changed, the following subsequent work must be performed:

Calibrate steering-angle sensor for PSM.
> 456005 INITIALIZE AND CALIBRATE STEERING-ANGLE SENSOR
Teaching power steering gear.
> 489025 TEACHING POWER STEERING GEAR
If installed: Calibrate distance measuring sensor control unit.
> 278515 ADJUST DISTANCE MEASURING SENSOR CONTROL UNIT
If installed: Calibrate front camera.
> 963855 REPLACE FRONT CAMERA
If installed: Calibrate infrared camera.
> 908019 REMOVE AND INSTALL INFRARED CAMERA
Teach headlight beam adjustment.
1. 6.1 Connect the PIWIS Tester to vehicle, turn on the Tester.
2. 6.2 Switch on ignition.
3. 6.3 Start diagnostics.
4. 6.4 Select "front-end electronics" control unit.
5. 6.5 Select Maintenance/repairs tab.
6. 6.6 Select menu item "Teach headlight beam adjustment" and press F12 to continue.
7. 6.7 Follow the instructions on the Tester.