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:
"Electronic crumple zone": even more safety in the M-Class
As ever, the best accident is one which does not happen at all. The safety
engineers at the Mercedes Technology Center are working intensively on this
rather simple sounding statement, which in pr ...
Important safety notes
WARNING
For safety reasons, switch off the windshield wipers and remove the key from
the ignition lock before changing the wiper blades (vehicles with KEYLESS-GO: make
sure that the on-board ...
Daytime running lamps
Daytime running lamps in Canada
The daytime running lamps function is
required by law in Canada. It cannot therefore
be deactivated.
•► Turn the light switch to or
.
With the engine run ...
