Activating/deactivating
X
Select key position 0048with the Start/Stop
button (Y page 111).
X Press the 006Crocker switch up or down.
The indicator lamp above the 006Crocker
switch lights up or goes out.
Problems with the rear window defroster Problem
Possible causes/consequences and
0050
0050Solutions The rear window
defroster has deactiva-
ted prematurely or can-
not be activated. The battery has not been sufficiently charged.
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. Switching air-recirculation mode
on/off
General notes You can also temporarily deactivate the flow of
fresh air manually if unpleasant odors are enter-
ing the vehicle from outside. The air already
inside the vehicle will then be recirculated.
If you switch on air-recirculation mode, the win-
dows can fog up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from fog-
ging up.
Activating/deactivating X
Select key position 0048with the Start/Stop
button (Y page 111).
X To activate: press the0072rocker switch up
or down.
The indicator lamp above the 0072rocker
switch lights up.
Air-recirculation mode switches on automati-
cally:
R at high outside temperatures
R in a tunnel (vehicles with a navigation system
only)
The indicator lamp above the 0072rocker
switch is not lit when automatic air-recirculation
mode is activated. Outside air is added after
about 30 minutes. X
To deactivate: press the0072rocker switch
up or down.
The indicator lamp above the 0072rocker
switch goes out.
Air-recirculation mode deactivates automati-
cally:
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 dehumidification"
function is activated 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 out-
lets. If necessary, redirect the airflow to
another area of the vehicle interior. Air vents
107Climate control Z
R
the engine and the transmission are at a suf-
ficient temperature for the ECO start/stop
function
R the set temperature for the vehicle interior
has been reached
R the battery is sufficiently charged
R the system detects that the windshield is not
fogged up when the air-conditioning system is switched on
R the hood is closed
R the driver's door is closed and the driver's
seat belt is fastened
All of the vehicle's systems remain active when
the engine is stopped automatically.
The HOLD function can also 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 switch to drive program RACE,S+orS
(Y page 116)
R you switch to manual mode M(Y page 121)
R in transmission position 005B, the brake pedal
is released and the HOLD function is not
active
R you depress the accelerator pedal
R you engage reverse gear 005E
R you move the transmission out of position 005D
R you unfasten your seat belt or open the driv-
er's door
R the vehicle starts to roll
R the brake system requires this
R the temperature in the vehicle interior devi-
ates from the set range
R the system detects moisture on the wind-
shield when the air-conditioning system is
switched on
R the battery's condition of charge is too low
Shifting the transmission to position 005Ddoes
not start the engine. Deactivating or activating the ECO
start/stop function
X
To deactivate: press ECO button 0043.
Indicator lamp 0044goes out.
X To activate: press ECO button 0043.
Indicator lamp 0044lights up.
If indicator lamp 0044is off, the ECO start/stop
function has been deactivated manually or as
the result of a malfunction. The engine will then
not be switched off automatically when the vehi- cle stops.
The ECO start/stop function is deactivated, if:
R switch to drive program RACE,S+orS
(Y page 116)
R you switch to manual mode M(Y page 121) AMG sports exhaust system
You can choose between different AMG sports
exhaust system volumes using the position of
the exhaust flap.
Each time you start the engine with the Smart-
Key or the Start/Stop button, the quietest set-
ting is activated. 114
DrivingDriving an
d parking
