Mercedes-Benz GL-Class: 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.
Floormat on the driver's side
WARNING
Whenever you are using a floormat, make sure
there is enough clearance and that the
floormat is securely fastened.
The floormat should always be securely
fastened using the fa ...
See also:
Connecting a USB Storage Device or iPod®
The USB Port, located on the instrument panel or in the center console, can be
used to control an iPod or a USB storage device.
To avoid connection problems, extension cords are not recommended. Use ...
When the System Does Not Seem To Work Properly
The RVC system might not work properly or display a clear image if:
The RVC is turned off. See “Turning the RVC System On or Off” earlier
in this section.
It is dark.
The sun or the beam ...
Running out of fuel
Avoid running out of fuel. Doing so can cause damage to the vehicle's engine,
fuel, and emission control systems.
If the vehicle does run out of fuel, a minimum of 1.1 U.S. gallons (4 liters)
...







