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:
4ETS (Electronic Traction System)
Observe the "Important safety notes"
section.
Traction control is part of ESP®.
Traction control brakes the drive wheels
individually if they spin. This enables you to
pull away and ...
CLS63 AMG
Even more surprising is the fact that the high-performance AMG is a pretty
good daily driver, too … considering it has 116 more horsepower, a firmer
suspension, tighter steering and loud exhaust. ...
Brake fluid
WARNING
Over a period of time, the brake fluid absorbs
moisture from the air; this lowers its boiling
point.
If the boiling point of the brake fluid is too low,
vapor pockets may form in the ...
