2013 MERCEDES-BENZ M-Class climate control

X
Turn the SmartKey to position 2in the
ignition lock (Y page 157).
X Set the desired temperature.
X To activate: press the0006button.
The indicator lamp in the 0006button lights
up. Automatic air distribution and airflow
are activated.
X To select manually: press the0017
button.
or
X Press the 0018or0019 button.
The indicator lamp in the 0006button goes
out.
3-zone automatic climate control: when
automatic mode is activated, you can select
a climate mode (Y page 146).Adjusting the climate mode settings
You can select the following climate mode
settings in automatic mode:
FOCUS high airflow that is set slightly cooler
MEDIUM medium airflow, standard setting
DIFFUSE low airflow that is set slightly warmer and with less draft X
Turn the SmartKey to position 2in the
ignition lock (Y page 157).
X Press the 0006button.
X Press the 000Cbutton repeatedly until the
desired climate mode appears in the
display. Setting the temperature
Dual-zone automatic climate control Different temperatures can be set for the
driver's and front-passenger sides.
X Turn the SmartKey to position 2in the
ignition lock (Y page 157).
X To increase/reduce: turn control0002or
001D clockwise or counter-clockwise
(Y page 139).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
3-zone automatic climate control Automatic climate control zones
You can select different temperature settings
for the driver's and front-passenger sides as
well as for the rear compartment.
X
Turn the SmartKey to position 2in the
ignition lock (Y page 157).
X To increase/reduce the temperature in
the front: turn control 0002or001D clockwise
or counter-clockwise (Y page 142).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
X To increase/reduce the temperature in
the rear compartment using the front
control panel: press the0004button.
The indicator lamp in the 0004button goes
out.
X Turn control 0002clockwise or counter-
clockwise (Y page 142).146
Operating the climate control systemsClimate control

Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
The temperature setting for the driver's
side is adopted for the rear compartment
and the front-passenger side.
X To increase/decrease the rear
compartment temperature using the
rear control panel: turn control001B
clockwise or counter-clockwise on the rear
control panel (Y page 142).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †). Setting the air distribution
Air distribution settings Front control panel
001C
Directs the airflow through the center
vents
001B Directs air through the footwell air
vents
001D Directs the airflow through the center
and footwell vents
0008 Directs air through the defroster vents
0015 Directs the airflow through the
defroster and center vents (Canada
only)
0014 Directs air through the defroster and
footwell vents
0017 Directs the airflow through the
defroster, center and footwell air vents
(Canada only)
Rear control panel
001A Directs the airflow through the rear
center and rear side air vents
001B Directs air through the footwell air
vents
i Using the rear control panel, you can also
activate both air distribution positions
simultaneously. In order to do this, press
both air distribution buttons. The air is then
routed through all rear air vents. i
Regardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
closed when the controls on the side air
vents are turned downwards.
Adjusting X
Turn the SmartKey to position 2in the
ignition lock (Y page 157).
X Press the 0017button repeatedly until the
desired symbol appears in the display. Setting the airflow
X
Turn the SmartKey to position 2in the
ignition lock (Y page 157).
X To increase: press the0019button.
X To reduce: press the0018button.
i You can use 3-zone automatic climate
control to set the airflow in the rear
compartment separately. Operating the climate control systems
147Climate control

Switching the ZONE function on/off
X
To activate: press the0004button.
The indicator lamp above the 0004button
lights up.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
not adopted for the front-passenger side.
3-zone automatic climate control: the
temperature setting for the driver's side is
not adopted for the front-passenger side
and the rear compartment.
X To deactivate: press the0004button.
The indicator lamp above the 0004button
goes out.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side.
3-zone automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side and
the rear compartment. Defrosting the windshield
You can use this function to defrost the
windshield or to defrost the inside of the
windshield and the side windows.
Switch off the "defrosting" function as soon
as the windshield is clear again.
X Turn the SmartKey to position 2in the
ignition lock (Y page 157).
X To activate: press the0009button.
The indicator lamp in the 0009button lights
up. The climate control system switches to the
following functions:
R
high airflow
R high temperature
R air distribution to the windshield and
front side windows
R air-recirculation mode off
X To deactivate: press the0009button.
The indicator lamp in the 0009button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
X Press the 0006button.
The indicator lamp in the 0009button goes
out. Airflow and air distribution are set to
automatic mode.
or
X Turn controls 0002or001D clockwise or
counter-clockwise:
Dual-zone automatic climate control
(Y page 139)
3-zone automatic climate control
(Y page 142)
or
X Press the 0019or0018 button. MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA. MAX COOL is only operational when the
engine is running.148
Operating the climate control systemsClimate control

X
To activate: press the0001button.
The indicator lamp in the button lights up.
X To activate: press off-road button 0001
again.
The indicator lamp goes out. The previously
selected settings are restored.
Whe nyou activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on Defrosting the windows
Windows fogged up on the inside X
Activate the 0007/0005 cooling with air
dehumidification function.
X Activate automatic mode 0006.
X If the windows continue to fog up, activate
the defrosting function (Y page 148).
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Press the 0017button repeatedly until the
001C or001B symbol appears in the
display.
i You should only select this setting until
the windshield is clear again. Rear window defroster
Activating/deactivating The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the rear window is clear. Otherwise,
the rear window defroster switches off
automatically after several minutes.
If the battery voltage is too low, the rear
window defroster may switch off.
X
Turn the SmartKey to position 2in the
ignition lock (Y page 157).
X Press the 000Dbutton.
The indicator lamp in the 000Dbutton lights
up or goes out. Operating the climate control systems
149Climate control

Problems with the rear window defroster
Problem Possible causes/consequences and
0001 Solutions
The rear window
defroster has
deactivated
prematurely or cannot
be activated. The battery has not been sufficiently charged.
X
Switch off any consumers that are not required, e.g. reading
lamps or interior lighting.
When the battery is sufficiently charged, the rear window
defroster is activated again automatically. Activating/deactivating air-
recirculation mode
If you switch on air-recirculation mode, the
windows can fog up more quickly, in
particular at low temperatures. Only use air-
recirculation mode briefly to prevent the
windows from fogging up. You can deactivate the flow of fresh air if
unpleasant odors are enteringt
he vehicle
from outside. The air already inside the
vehicle will then be recirculated.
The operation of air-recirculation mode is the
same for all control panels.
X Turn the SmartKey to position 2in the
ignition lock (Y page 157).
X To activate: press the0016button.
The indicator lamp in the 0016button lights
up.
i In the event of high pollution levels (3-
zone automatic climate control only) or at
high outside temperatures, air-
recirculation mode is automatically
activated. When air-recirculation mode is activated automatically, the indicator lamp
in the
0016button is not lit.
Outside air is added after about
30 minutes.
X To deactivate: press the0016button.
The indicator lamp in the 0016button goes
out.
i Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below
approximately 41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes at
outside temperatures above
approximately 41 ‡(5 †)if the "Cooling
with air dehumidification" function is
activated Activating/deactivating the residual
heat function
The "residual heat" function is only available
in Canada. 150
Operating the climate control systemsClimate control

It is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the temperature that has
been set.
X To activate: press the0003/0005 button.
The indicator lamp in the 0003/0005
button lights up.
i The blower will run at a low speed
regardless of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
mediums peed.
X To deactivate: press the0003/0005
button.
The indicator lamp in the 0003/0005
button goes out.
Residual heat is deactivated automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R when the auxiliary heating is activated Setting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air
outlets. If necessary, redirec
tthe airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R keep the air inlet grille on the hood and in
the engine compartment on the front-
passenger side free of blockages, such as
ice, snow or leaves.
R never cover the air vents or air intake grilles
in the vehicle interior.
i For virtually draft-free ventilation, adjust
the sliders of the air vents to the center
position. Setting the center air vents
0002
Center air vent, left
0003 Center air vent, right
001F Center vent thumbwheel, right
001E Center vent thumbwheel, left
X To open/close: turn thumbwheels 001F
and 001Eto the right or left. Setting the air vents
151Climate control Z

Setting the side air vents
0002
Side window defroster vent
0003 Side air vent
001F Control for side air vent
X To open/close: turn thumbwheel 001Fup or
down. Setting the glove box air vent
! Close the air vent when heating the
vehicle.
At high outside temperatures, open the air
vent and activate the "cooling with air
dehumidification" function. Otherwise,
temperature-sensitive items stored in the
glove box could be damaged. 0002
Air vent thumbwheel
0003 Air vent
When automatic climate control is activated,
the glove box can be ventilated, for instance
to cool its contents. The level of airflow
depends on the airflow and air distribution
settings. X
To open/close: turn thumbwheel 0002
clockwise or counter-clockwise. Setting the rear-compartment air
vents
Setting the center vents in the rear
compartment Example: center vents with rear control panel
0002
Rear-compartment air vent thumbwheel
0003 Rear-compartment air vent, right
001F Rear control panel
001E Rear-compartment air vent, left
X To open/close: turn thumbwheel 0002up or
down.
Setting the rear-compartment side air
vents 2nd row of seats
0002
B-pillar air vent
0003 Thumbwheel for B-pillar air vent 152
Setting the air ventsClimate control

X
To open/close: turnthumbwheel 0003to the
left or right. Setting the air vents
153Climate control Z