WF69 – Replacing Positive Crankcase Ventilation Valves – 2015-2016 Porsche Cayenne S & Cayenne GTS

102/15

 

Vehicle Type: Cayenne S (92A)/Cayenne GTS (92A)

Model Year: As of 2015 up to 2016

Equipment: 3.6-liter V6 Turbo engine (engine types CUR/CURA/CXZ/CXZA)

Concerns: Positive crankcase ventilation valves

 

Information:

This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. There is a possibility that positive crankcase ventilation valves that have a burr on their covers due to the use of an incorrect tool were installed on the affected vehicles.

This can cause the bleeder valve diaphragm to tear.

If the diaphragm is torn, this can result in an implausible mass air flow at idle speed, resulting in noises from the engine compartment and activation of the Check Engine light.

(more…)

WF50 – Re-programming Front-end Electronics Control Unit – 2015-2016 Porsche Cayenne S E-Hybrid (92A)

77/15

 

Model Year: As of 2015 up to 2016

Vehicle Type: Cayenne S E-Hybrid (92A)

Concerns: Front-end electronics control unit

 

Information:

This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. The DME control unit and front-end electronics are not switched to sleep mode on the affected vehicles when all the following conditions are met:

  • Ignition is switched off.
  • Filler flap release is actuated.
  • Fuel tank readiness is not yet reached because the pressure in the fuel tank has not yet been reduced. The procedure can take up to 150 seconds, depending on the pressure conditions in the fuel tank (warning in instrument cluster indicates “Establishing tank readiness”).
  • Vehicle is locked within 6 seconds.

This software error in the front-end electronics prevents the control units from entering sleep mode. As a result, the closed-circuit current draw is too high until the ignition is switched on.

(more…)