Preliminary Work
WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
- Remove rear wiper motor → Removing wiper motor for rear window wiper system
- Switch on ignition and set air conditioning to air recirculation mode.
- Seal the ventilation flaps on the body (in the rear side panel area and on the front side member) so that they are as airtight possible for the duration of the fault finding procedure if necessary.