Checking Front Door Window Coating

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.

Fig 1: Identifying Front Door Window

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Spray water using an atomiser spray bottle and check the hydrophobic coating based on the size of the drops that form on the window.

Drop size on hydrophobic coating - OK

Fig 2: Identifying Drop Size On Hydrophobic Door Window (Coating OK)
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Drop size on hydrophobic coating - worn

Fig 3: Identifying Drop Size On Hydrophobic Door Window (Coating Worn)
Courtesy of PORSCHE CARS NORTH AMERICA, INC.