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:
Manual interior lighting control
To switch the front interior lighting on/ off: press the
button.
To switch the rear interior lighting on/ off: press the
button.
To switch the reading lamps on/off: press the
button.
...
Multifunction steering wheel
...
4MATIC (permanent four-wheel drive)
4MATIC ensures that all four wheels are
permanently driven. Together with ESP® and
4ETS, it improves the traction of your vehicle
whenever a drive wheel spins due to
insufficient grip.
WARNING&nb ...
