This bulletin was released by Porsche, applying to 2008 and later Cayenne models concerning oil ingress into the engine wiring harness.

If oil is found in the engine wiring harness during a repair or service, the wiring harness and all of the affected components (including the oil pump control valve) must be replaced. 

Hey, if the customer can afford a Porsche, they can afford the repairs.

Inspect for signs of oil in the engine wiring harness.

Inspect for signs of oil in the engine wiring harness.

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