Mercedes-Benz GLC : Replacing the windshield wiper blades / Removing the wiper blades
Fold the wiper arms away from
the windshield.

Hold the wiper arm with one
hand. With the
other hand, turn the wiper blade away from
the wiper arm in the direction of arrow
as
far as it will go.
Slide catch
in the direction of arrow
until it engages in the removal position.
Remove the wiper blade from the
wiper arm
in the direction of arrow
.
Switch the ignition on and then
off again
immediately.
Within around 15 seconds, press
and hold
the button on the combination
switch for approximately three seconds...
Insert the new wiper blade into
the wiper
arm in the direction of arrow .
Slide catch
in the direction of arrow
until it engages in the locking position...
Other information:
To preserve the engine during the first
1000 miles (1500 km):
Drive at varying road speeds and engine
speeds.
Do not drive at speeds greater than 85 mph
(140 km/h).
Drive the vehicle in drive program
or.
Shift to the next highest gear at the very latest
when the needle reaches the last third
before the red area in the tachometer...
Adjusting the front air vents
WARNING Risk of burns and frostbite
due to being too close to the air vents
Very hot or very cold air can flow from the air
vents.
Make sure that
all vehicle occupants
always maintain a sufficient distance
from the air vents...