R
Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the
temperature settings on the driver's side
for the front-passenger side as well. The
indicator lamp in the 00D6button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior
when the ignition is switched off. The
residual heat function can only be activated
or deactivated with the ignition switched
off.
R Vehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for three
seconds at the bottom of the screen in the
COMAND display. See also the separate
COMAND operating instructions. You will
see the current settings of the various
climate control functions.
ECO start/stop function During automatic engine switch-off, the ECO
start/stop function only operates at a
reduced capacity. If you require full climate
control capacity, the ECO start/stop function
can be deactivated by pressing the ECO
button (Y page 160). Operating the climate control
systems
Switching climate control on/off
General notes When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could fog up.
Therefore, switch off climate control only
briefly
i Activate climate control primarily using
the 0058 button (Y page 145). Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 155).
X To activating: press the0058button on
the control panel for the climate control.
The indicator lamp in the 0058button lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the 0078button on the control panel
for the climate control.
The indicator lamp in the 0078button goes
out. The previously selected settings are
restored.
X To deactivate: press the0078button.
The indicator lamp in the 0078button 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,
deactivate the cooling with air-
dehumidification function only 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.Operating the climate control systems
143Climate control
Problems with the rear window defroster
Problem Possible causes/consequences and
0050
0050Solutions The rear window
defroster has
deactivated
prematurely or cannot
be activated. The on-board voltage is too low because too many electrical
consumers are switched on.
X Switch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window
defroster can be activated again. Activating/deactivating air-
recirculation mode
General notes 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.
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 155).
X To activate: press the0072button.
The indicator lamp in the 0072button lights
up.
i Air-recirculation mode is automatically
activated at high levels of pollution or at
high outside temperatures. When air-
recirculation mode is activated
automatically, the indicator lamp in the
0072 button is not lit. Outside air is added after about
30 minutes.
X To deactivate: press the0072button.
The indicator lamp in the 0072button 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
General notes 150
Operating the climate control systemsClimate control
The residual heat function is only available on
vehicles for Canada.
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.
Activating/deactivating X
Turn the SmartKey to position 0in the
ignition lock or remove it (Y page 155).
X To activate: press the004Bbutton.
The indicator lamp in the 004Bbutton 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
medium speed.
X To deactivate: press the004Bbutton.
The indicator lamp in the 004Bbutton 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 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, redirect the airflow to
another area of the vehicle interior. G
WARNING
When AIRSCARF is switched on, very hot air
can flow from the vents in the head restraints.
This could result in burns in the immediate
vicinity of the air vents. There is a risk of injury.
Reduce the heater output before it becomes
too hot.
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 You can move the adjusters for the air
vents vertically or horizontally to set the
direction of the airflow.
i For optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position. Setting the center air vents
X
To open the center air vent: turn the
adjuster in one of center air vents 0043
counter-clockwise.
X To close the center air vent: turn the
adjuster in one of center air vents 0043
clockwise until it engages. Setting the air vents
151Climate control Z
i
All vehicles (apart from AMG
vehicles): automatic engine switch-off can
take place a maximum of four times
consecutively (initial stop then repeated
three times). The 00A7symbol is shown in
yellow in the multifunction display after the
engine has been started automatically for
the fourth time. When the 00A7symbol is
shown in green in the multifunction display,
automatic engine switch-off is again
possible.
i AMG vehicles: times which the engine
can be automatically switched off.
i The HOLD function can be activated if the
engine has been switched off
automatically. It is then not necessary to
continue applying the brakes during the
automatic stop phase. When you depress
the accelerator pedal, the engine starts
automatically and the braking effect of the
HOLD function is deactivated.
Automatic engine start The engine starts automatically if:
R
you switch off the ECO start/stop function
by pressing the ECO button.
R in transmission position Dor Nthe brake
pedal is released and the HOLD function is
not active.
R you depress the accelerator pedal.
R you engage reverse gear R.
R you move the transmission out of position
P.
R you switch to drive program S, S+orM
(AMG vehicles).
R you unfasten your seat belt or open the
driver's door.
R the vehicle starts to roll.
R the brake system requires this.
R the temperature in the vehicle interior
deviates from the set range. R
the system detects moisture on the
windshield when the air-conditioning
system is switched on.
R the charge level of the battery is too low.
i Shifting the transmission to position P
does not start the engine.
i If you shift the transmission from Rto D,
the ECO start/stop function is available
again once the 00A7symbol reappears in
green in the multifunction display.
Deactivating/activating the ECO start/
stop function ECO button
Deactivating (except for AMG vehicles)
X
Press button 0043.
Indicator lamp 0044and the 00A7symbol in
the multifunction display go out.
Activating (except for AMG vehicles)
X Press button 0043.
Indicator lamp 0044lights up. If all conditions
for automatic engine switch-off
(Y page 159) are fulfilled, the 00A7symbol
is shown in green in the multifunction
display.
If not all conditions for automatic engine
switch-off (Y page 159) are fulfilled, the
00A7 symbol is shown in yellow in the
multifunction display. If this is the case, the
ECO start/stop function is not available.
i If indicator lamp 0044is off, the ECO start/
stop function has been deactivated 160
DrivingDriving and pa
rking
X
Press 0076to confirm.
X Press the 0064or0063 button to adjust the
brightness to any level from Off
Off toLevel
Level
5
5 (bright).
X Press the 0076or0038 button to save the
setting.
Setting the ambient lighting color
X Press the 0059or0065 button on the
steering wheel to select the Settings
Settings
menu.
X Press the 0064or0063 button to select the
Lights
Lights submenu.
X Press 0076to confirm.
X Press the 0064or0063 button to select the
Ambient Light Color
Ambient Light Color function.
X Press 0076to confirm.
X Press the 0064or0063 button to set the
color to SOLAR
SOLAR ,SOLAR orange SOLAR orange orSOLAR
SOLAR
red
red.
X Press the 0076or0038 button to save the
setting.
Activating/deactivating surround
lighting and exterior lighting delayed
switch-off
X Press the 0059or0065 button on the
steering wheel to select the Sett
Sett menu.
X Press the 0064or0063 button to select the
Lights
Lights submenu.
X Press 0076to confirm.
X Press the 0064or0063 button to select the
Surround Lighting
Surround Lighting function.
When the Surround Lighting Surround Lighting function is
activated, the light cone and the area
around the vehicle are displayed in orange
in the multifunction display.
X Press the 0076button to save the setting. Deactivating delayed switch-off of the
exterior lighting temporarily:
X
Before leaving the vehicle, turn the
SmartKey to position 0in the ignition lock.
X Turn the SmartKey to position 2in the
ignition lock.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the
engine.
If you have activated the Surround
Surround
Lighting Lighting function and the light switch is set
to 0058, the following functions are activated
when it is dark:
R surround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the SmartKey. If you start the engine,
the surround lighting is switched off and
automatic headlamp mode is activated
(Y page 126).
R exterior lighting delayed switch-off: the
exterior lighting remains lit for
60 seconds after the engine is switched off.
If you close all the doors and the trunk lid,
the exterior lighting goes off after
15 seconds.
i Depending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the
following light up:
R Parking lamps
R Low-beam headlamps
R Daytime running lamps
R Side marker lamps
R Surround lighting in the exterior mirrors
Activating/deactivating the interior
lighting delayed switch-off
If you activate the Interior Lighting Interior Lighting
Delay
Delay function, the interior lighting remains
on for 20 seconds after you remove the
SmartKey from the ignition lock. 238
Menus and submenusOn-board computer and displays
X
Press the 0059or0065 button on the
steering wheel to select the Sett
Settmenu.
X Press the 0064or0063 button to select the
Lights
Lights submenu.
X Press 0076to confirm.
X Press the 0064or0063 button to select the
Interior Lighting Delay
Interior Lighting Delay function.
If the Interior
Interior Lighting
LightingDelay
Delayfunction
has been switched on, the vehicle interior
is displayed in orange in the multifunction
display.
X Press the 0076button to save the setting.
Vehicle Activating/deactivating the automatic
door locking mechanism
X Press the 0059or0065 button on the
steering wheel to select the Sett
Sett menu.
X Press the 0064or0063 button to select the
Vehicle Vehicle submenu.
X Press 0076to confirm.
X Press 0064or0063 to select the
Automatic Door Lock
Automatic Door Lock function.
When the Automatic
Automatic Door
DoorLock
Lockfunction
is activated, the left-hand vehicle door is
displayed in orange in the multifunction
display.
X Press the 0076button to save the setting.
If you activate the Automatic Door Lock
Automatic Door Lock
function, the vehicle is centrally locked above
a speed of around 9 mph (15 km/h).
For further information on the automatic
locking feature, see (Y page 90).
Activating/deactivating the acoustic
locking verification signal
If you switch on the Acoustic AcousticLock
Lockfunction,
an acoustic signal sounds when you lock the
vehicle.
X Press the 0059or0065 button on the
steering wheel to select the Sett
Sett menu.
X Press the 0064or0063 button to select the
Vehicle Vehicle submenu. X
Press 0076to confirm.
X Press the 0064or0063 button to select the
Acoustic Lock Acoustic Lock function.
If the Acoustic Acoustic Lock
Lockfunction is activated,
the 0037 symbol in the multifunction
display lights up orange.
X Press the 0076button to save the setting.
Activating/deactivating the radar sensor
system
X Press the 0059or0065 button on the
steering wheel to select the Settings
Settings
menu.
X Press the 0064or0063 button to select the
Vehicle Vehicle submenu.
X Press 0076to confirm.
X Press the 0063or0064 button to select
Radar Sensor (See Oper. Manual):
Radar Sensor (See Oper. Manual): .
You will see the selected setting: Enabled
Enabled
or Disabled
Disabled .
X Press the 0076button to save the setting.
The following systems are switched off when
the radar sensor system is deactivated:
R DISTRONIC PLUS (Y page 186)
R BAS PLUS (Y page 72)
R PRE-SAFE ®
Brake (Y page 77)
R Active Blind Spot Assist (Y page 218)
Convenience Activating/deactivating the EASY-
ENTRY/EXIT feature
G
WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants – particularly children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is
making adjustments, make sure that no one
has any body parts in the sweep of the
steering wheel. Menus and submenus
239On-board computer and displays
Z