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:
Icon for real-time traffic reports
...
Notes for 4MATIC vehicles
Vehicles with 4MATIC must not be towed with either the front or the rear axle
raised, as doing so will damage the transmission.
If the vehicle has transmission damage or damage to the front or r ...
Other status indicators of the navigation system
• : you have reached the
destination or
an intermediate destination.
• New Route... or Calculating Route: a
new route is being calculated.
• Off Map or Off Mapped Road: the vehicle
position ...
