Calibration

Calibration

Checking

Calibration must be performed if one or more of the following situations apply:
* Control unit was replaced.
* Level sensors were replaced.
* Vehicle lies to one side after being raised.

The level sensors are calibrated by determining a correction value (corresponding to the actual height of the vehicle) and storing it permanently in the control unit. Select ]]Level control/PASM[[]]Maintenance/repairs[[ Height sensor system calibration in the Porsche System Tester control unit overview.

Notes on calibration

Information
* Calibration is also required for the "steel spring" variants.
* Prior to calibration, the normal level must be adjusted!
* Ensure that tire pressures have been adjusted to the respective tire specifications.
* The fault memory must be cleared before starting calibration.
* The vehicle is raised and lowered during the height sensor system component test!
* Do not interrupt calibration! If calibration is interrupted, the fault code 000286 "Customer service mode not complete" is entered. A warning appears in the instrument cluster. If this happens, perform calibration again.
* Select ]]Height sensor system component test[[ before starting calibration. Select ]]Level control/PASM[[]]Maintenance/repairs[[ Height sensor system component test in the control unit overview using the Porsche System Tester.
* Switch on the air extraction system while the engine is running.

The nominal values for the nominal heights of the level sensors are stored in the control unit (F1 - Help). The actual values of the respective axle heights, front left, front right, rear left, rear right, have to be measured manually and then entered using the Porsche System Tester. The actual values must be measured on the two axle supports (front axle, rear axle), both on the right and left.

Height measurement point on rear axle

The distance (middle of wheel) between the lower edge of the wing to the middle of the axle -X- is measured.





Dimension X = middle of wheel to lower edge of wing

Height measurement point on front axle





Dimension X = middle of wheel to lower edge of wing (rear axle shown)

The distance (middle of wheel) between the lower edge of the wing to the middle of the axle -X- is measured.

Conditions for carrying out calibration - Procedure

Calibration can only be carried out while vehicle is stationary.

The vehicle must stand "floating" on the measuring platform to avoid straining the axles.

The electric parking brake must be applied.

Close the doors and tailgate.

Select >>Height sensor system component test<< before starting calibration.

The vehicle rises first and then moves to normal level during the height sensor system component test.

Connect the Porsche System Tester and select ]]Level control/PASM[[]]Maintenance/repairs[[ Height sensor system component test in the control unit overview.

Select ]]Level control/PASM[[]]Maintenance/repairs[[ Height sensor system calibration in the control unit overview.

After normal level has been reached, determine the actual value of the axle heights at the measuring points. For the current comparative values for the vehicle height, please refer to the adjustment values for suspension alignment.

The measured values for the vehicle height must correspond to the values specified under Adjustment values for suspension alignment.

If an implausible value is entered (actual value is not accepted), measure the height again and enter the value.