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:
Roof Rack System
WARNING
If something is carried on top of the vehicle that is longer or wider than the
roof rack—like paneling, plywood, or a mattress—the wind can catch it while the
vehicle is being driven. ...
Replacing the windshield wiper blades
Removing the wiper blades
► Remove the SmartKey from the ignition
lock.
► Fold the wiper arm away from the
windshield.
► Press both release clips 2.
► Fold wiper blade ...
Horn
To sound the horn, push the center pad
area of the steering wheel.
WARNING
Do not disassemble the horn. Doing so
could affect proper operation of the supplemental
front air bag system. Tam ...







