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Removing and installing front speed sensors: Installation

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  1. Coat speed sensor and the bore in the wheel carrier with Molykote Longterm 2.
    NOTE: There is no O-ring between speed sensor and wheel carrier. The speed sensors at front and rear axles are the same.
  2. Without using excessive force, insert speed sensor into wheel carrier and tighten the hexagon socket head bolt to 10 Nm (7.5 ftlb.).
  3. If the speed sensor has been removed or replaced due to an ABS fault or Traction Control fault, or because of accident repairs, a functional check should be carried out with the Porsche System Tester 2, via the Actual Values menu, Speed.
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