Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Porsche Boxster (987) F6-2.9LFACTORY OEM SERVICE PROCEDURE
Wheel Alignment Values
Wheel alignment values
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 9718.
--> Keep the front wheels in straight-ahead position on the measuring platform during calibration.
--> Check the actual value of the steering-angle sensor after suspension alignment where no changes were made to the wheel alignment values.
Information
^ The following values relate to the empty weight, i.e. full fuel tank, vehicle with tools but without driver or additional weights.
^ The toe-difference angle value is also influenced by the vehicle height. For this reason the measured result must be evaluated accordingly. No action is necessary in the case of small deviations from the toe-difference angle's required value as long as the value to the right and left is almost the same.
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 9718.
--> Keep the front wheels in straight-ahead position on the measuring platform during calibration.
--> Check the actual value of the steering-angle sensor after suspension alignment where no changes were made to the wheel alignment values.
Information
^ The following values relate to the empty weight, i.e. full fuel tank, vehicle with tools but without driver or additional weights.
^ The toe-difference angle value is also influenced by the vehicle height. For this reason the measured result must be evaluated accordingly. No action is necessary in the case of small deviations from the toe-difference angle's required value as long as the value to the right and left is almost the same.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.