Fig. 79 Metal-coated windscreen for infrared reflection with communication window (blue area)
Insulating glass windscreens have a coating which reflects infrared radiation. There is a non-coated area above the interior mirror (communication window) which ensures that electronic accessories, for example remote controls, can function properly.
The uncoated area may not be covered either from the outside or the inside nor may any stickers be applied to this area as the electronic components may otherwise malfunction.
Volkswagen Touran Owners Manual. Synchronising the vehicle key
First read and observe the introductory information
and safety warnings The vehicle may no longer be able
to be locked or unlocked with the remote control if you press the button
repeatedly outside of the effective
range of the vehicle key. If this is the case, the vehicle key needs to ...
Volkswagen Touran Service Manual. Special Tools
Testing Equipment, Tools and Materials
Commercially Available Tools and Materials
Note
This list outlines the testers, tools and materials required
for expert refrigerant circuit repair work.
Caution
...