Porsche 996 TT, Repair Manual

Page: 335 / 2099

Adjusting toe
WARNING
Danger of injury and damage to property due to malfunctions in the PSM control range if the steering angle
sensor is not calibrated or is calibrated incorrectly!
Calibrate steering angle sensor with wheels in straight−ahead position with the Porsche System Tester
2! •
The steering angle sensor actual value must be checked after a suspension alignment which resulted in
no changes being made to the wheel alignment values! •
Note
The steering angle sensor must be calibrated if the previous wheel alignment values (on rear and/or
front axle) were changed! => Steering angle sensor •
Preliminary work:
1. Check whether the steering wheel is displaced with respect to the steering gear.
2. To do this, centre the steering gear as described below.
3. Turn wheels to the straight−ahead
position.
4. Then readjust the front wheel alignment, if necessary, until pin No. −2− in driver No. −1− and the lug on
the steering gear housing No. −4− line up.
No. −3− is the desired breaking point for pins in new steering gears. The (new) pin No. 2 is inserted into
driver No. 1 and lies with its underside within the recess of lug No. 4. This locks the steering gear in the
centre position. After installation of a new steering gear, the lower part of the pin is sheared off (at the desired
breaking point No. −3− ) by turning the steering wheel. The upper part of the pin remains in the driver.
If necessary, reposition the steering wheel. When doing this, seek the best position.
WARNING
A triggering of the airbag (malfunction in the airbag system) caused by improper work on airbag components
cannot be ruled out! In the case of such a malfunction, an unsuitable steering wheel holder could cause injury
or damage!
Use only steering wheel holders which do not project into the area of the airbag unit! •
Observe safety regulations when working with airbag vehicles!’ 69 Passenger protection
•
5. Clamp steering wheel in centre position with steering wheel holder.
Note
einordnung
Adjusting toe 272