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Calibrating fuel level sensor system

Danger!

Danger of fire and injury!

NOTE: Calibration is necessary after replacement of the fuel tank, fuel level sensor or instrument cluster.
  1. Remove battery and detach battery cover.
  2. Remove fuel level sensor. Refer to REMOVING AND INSTALLING FUEL PUMP  .
  3. Using a fuel extractor, completely drain the fuel tank through the fuel level sensor opening.
  4. Reinstall the fuel level sensor and, with "ignition off', fill the tank with 12 litres of fuel.
  5. Perform tank calibration with the Porsche System Tester 2.
NOTE:
  • The fuel level sensor system need not be calibrated if the battery was disconnected or a plug connection on the instrument cluster or fuel level sensor was removed. The values remain stored in the instrument cluster.
  • A range on remaining fuel of less than 15 km is not displayed in the instrument cluster.