climate control MERCEDES-BENZ GL 2014 User Guide

yTo switch rear-compartment climate control on/off (Ypage 154)
zTo reduce the airflow (Ypage 158)
Canada only
Front control panel
CTo set the temperature, left (Ypage 157)
DTo defrost the windshield (Ypage 159)

yTo switch rear-compartment climate control on/off (Ypage 154)
zTo reduce the airflow (Ypage 158)
Control panel for 3-zone automatic climate control with additional rear-
compartment climate control
USA only
Front control panel
CTo set the temperature, left (Ypage 157)
DTo defrost the windshield (Ypage 159)

uTo set the temperature (Ypage 157)
vTo set rear-compartment climate control to automatic (Ypage 156)
wTo direct the airflow through the rear air vents (Ypage 158)
xTo direct the airflow through the footwell vents (Ypage 158)
yTo switch rear-compartment climate control on/off (Ypage 154)
zTo reduce the airflow (Ypage 158)
Canada only
Front control panel
CTo set the temperature, left (Ypage 157)
DTo defrost the windshield (Ypage 159)

tTo increase the airflow (Ypage 158)
uTo set the temperature (Ypage 157)
vTo set rear-compartment climate control to automatic (Ypage 156)
wTo direct the airflow through the rear air vents (Ypage 158)
xTo direct the airflow through the footwell vents (Ypage 158)
yTo switch rear-compartment climate control on/off (Ypage 154)
zTo reduce the airflow (Ypage 158)
Information about using 3-zone
automatic climate control
The following contains instructions and
recommendations to enable you to get the
most out of your automatic climate control.
RActivate climate control using theXand
Z/Vbuttons. The indicator lamps
above theXandZ/Vbuttons
light up.
RIn automatic mode, you can also use the

Activating/deactivating
XTurn the SmartKey to position2in the
ignition lock (Ypage 167).
XTo activate:press theXbutton.
The indicator lamp in theXbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
XPress thexbutton.
The indicator lamp in thexbutton goes
out. The previously selected settings are
restored.
XTo deactivate:press thexbutton.
The indicator lamp in thexbutton lights
up.
Activating/deactivating cooling with
air dehumidification
General notes
If you deactivate the "Cooling with air-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
only deactivate the "Cooling with air-
dehumidification" function briefly.
The "Cooling with air dehumidification"
function is only available when the engine is
running. The air inside the vehicle is cooled
and dehumidified according to the
temperature selected.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a
malfunction.
Activating/deactivating
Example:Zbutton
XTo activate:press theZ/Vbutton.
The indicator lamp in theZ/V
button lights up.
XTo deactivate:press theZ/V
button.
The indicator lamp in theZ/V
button goes out. The "Cooling with air
dehumidification" function has a delayed
switch-off feature.
Operating the climate control systems155
Climate cont rol

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andPPSolutions
The indicator lamp in
theZ/Vbutton
flashes three times or
remains off. The
"Cooling with air
dehumidification"
function cannot be
switched on.
Cooling with air dehumidification has been deactivated due to a
malfunction.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
If you deactivate the "Cooling with air-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
only deactivate the "Cooling with air-
dehumidification" function briefly.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
Automatic mode will achieve optimal
operation if cooling with air dehumidification
is also activated. If necessary, cooling with air
dehumidification can be deactivated.
In the rear compartment, you can also switch
climate control for the rear seats to automatic
mode using theXbutton.
Activating/switching
XTurn the SmartKey to position2in the
ignition lock (Ypage 167).
XSet the desired temperature.
XTo activate:press theXbutton.
The indicator lamp in theXbutton lights
up. Automatic air distribution and airflow
are activated.
XTo switch to manual mode:press the

XTo open/close:turn thumbwheelDto the
left or right.
B-pillar air vent in the headliner
CRear air vent
DThumbwheel for rear air vent
XTo open/close:turn thumbwheelDup or
down.
Third row of seats
B-pillar air vent in the headliner
CRear air vent
DThumbwheel for rear air vent
XTo open/close:turn thumbwheelDup or
down.
164Setting the air vents
Climate control

Example:
RTreadwear grade:200
RTraction grade:AA
RTemperature grade:A
All passenger car tires must conform to the
statutory safety requirements in addition to
these grades.
iThe actual values for tires are vehicle-
specific and may deviate from the values in
the illustration.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
U.S. government course. For example, a tire
graded 150 would wear one and one-half
times as well on the government test track as
a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm, due to variations in driving habits,
service practices and differences in road
characteristics and climate conditions.
Traction
GWARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
!Avoid wheelspin. This can lead to damage
to the drive train.
The traction grades, from highest to lowest,
are AA, A, B, and C. Those grades represent
the tire's ability to stop on a wet surface as
measured under controlled conditions on
specified government test surfaces of asphalt
and concrete. A tire marked C may have poor
traction performance.
The safe speed on a wet, snow covered or icy
road is always lower than on dry road
surfaces.
You should pay special attention to road
conditions when temperatures are around
freezing point.
Mercedes-Benz recommends a minimum
tread depth of