Infrared reflective windshield
The infrared reflecting glass prevents the vehicle interior from becoming too hot. It also blocks radio waves up into the gigahertz range.

In order to operate radio-controlled equipment, e.g. toll recording systems, areas 1 on the windshield are permeable to radio waves. In these areas, you can install radio-controlled systems.
These areas can best be seen from outside the vehicle by observing the light reflected off the windshield.
See also:
Locking and unlocking centrally
The SmartKey centrally locks/unlocks:
the doors
the tailgate
the fuel filler flap
1 Locks the vehicle
2 Opens/closes the tailgate
3 Unlocks the vehicle
When unlocking, the turn sign ...
Socket in the rear-compartment center console
Socket in the rear-compartment center console
Pull cover 2 out by its top
edge.
Lift up the cover of socket 1. ...
Cleaning the wheels
Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
Do not park the vehicle for an extended
period straight after cleaning it, ...
