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:
Brow of hill
When driving up an uphill gradient, slightly reduce pressure on the accelerator
immediately before reaching the brow of the hill. Use the vehicle's own impetus
to drive over the top of the hil ...
Automatic car wash
WARNING
Braking efficiency is reduced after washing
the vehicle. This could cause an accident. For
this reason, you must drive particularly
carefully after washing the vehicle until the
b ...
Change of address or ownership
In the event of a change of address, please
send us the "Change of Address Notice" found in the Service and Warranty
Information Booklet, or simply call the
Mercedes-Benz Customer Assista ...
