2013 MERCEDES-BENZ E-Class SEDAN indicator lamp

Activating/deactivating cooling with
air dehumidification
Points to observe before use G
WARNING
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions
are warm. The windows can fog up
more quickly. This may prevent you from
observing the traffic conditions, thereby
causing an accident.
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.
i The cooling with air dehumidification
function uses refrigerant R134a. This
coolant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer.
Activating/deactivating X
To activate: press the ¿ button.
The indicator lamp above the ¿ button
lights up.
X To deactivate: press the ¿ button.
The indicator lamp above the ¿ button
goes out. The cooling with air
dehumidification function has a delayed
switch-off feature. Problems with the cooling with air
dehumidification function When you press the
¿ button, the
indicator lamp in the button flashes three
times

or remains off. You can no longer switch
on the cooling with air dehumidification
function.
X Visit a qualified specialist workshop. Setting climate control to automatic
G
WARNING
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions

are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
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 desired, cooling with air
dehumidification can be deactivated.
X Turn the SmartKey to position 2 in the
ignition lock.
X Set the desired temperature.
X To activate: press the à button.
The indicator lamp above the à button
lights up. Automatic air distribution and
airflow are activated.
i 3-zone automatic climate control: when
automatic mode is activated, you can
select a climate mode setting
(Y page 144).
X To deactivate: press the air distribution
button.
Dual-zone

automatic climate control: press
button F(Y page 139). Operating the climate control systems
143
Climate control Z

3-zone automatic climate control: press
button
I(Y page 141).
The indicator lamp above the à button
goes out.
or
X Press the airflow button.
Dual-zone
automatic climate control: press
button G(Y page 139).
3-zone automatic climate control: press
button H(Y page 141).
The indicator lamp above the à button
goes out. 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 2 in the
ignition lock.
X Press the à button.
X Press button G
up or down and select the
desired level ( Y page 141)Setting the temperature
Climate control Different temperatures can be set for the
driver's and front-passenger sides.
X
Turn the SmartKey to position 2 in the
ignition lock.
X To increase/reduce: press switch E or
H up or down ( 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 2 in the
ignition lock.
X To increase/reduce the temperature in
the front compartment: press switch F
or J up or down ( Y page 141).
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 the á button.
The indicator lamp above the á button
goes out.
X Press switch F or J up or down
(Y page 141).
Only change the temperature setting in
small increments. Start at

72 ‡ (22 † ).
X To increase/reduce the temperature in
the rear compartment using the rear
control panel: press button K or
O(Y page 141).
Only change the temperature setting in
small increments. Start at

72 ‡ (22 † ).144
Operating the climate control systems
Climate control

Setting the air distribution
Air distribution settings P
Directs air through the center and side
air vents
O Directs the airflow through the
footwell air vents
S Directs the airflow through the center,
side and footwell air vents (USA only)
¯ Directs air through the defroster vents
b Directs the airflow through the
defroster, center and side air vents
(Canada only)
a Directs air through the defroster and
footwell 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.
Climate control X
Turn the SmartKey to position 2 in the
ignition lock.
X Press switch F up or down repeatedly until
the desired symbol appears in the display
(Y page 139).
3-zone automatic climate control X
Turn the SmartKey to position 2 in the
ignition lock.
X Press switch I
up or down repeatedly until
the desired symbol appears in the display
(Y page 141). Setting the airflow
Climate control X
Turn the SmartKey to position 2 in the
ignition lock.
X To increase/reduce: press switch G up
or down ( Y page 139). 3-zone automatic climate control X
Turn the SmartKey to position 2 in the
ignition lock.
X To increase/reduce front-
compartment

airflow: press switch H up
or down ( Y page 141).
X To increase/reduce the rear airflow:
press button M or N(Y page 141). Switching the ZONE function on/off
X To activate: press the á button.
The indicator lamp above the á button
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 the á button.
The indicator lamp above the á button
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. Operating the climate control systems
145
Climate control Z

X
Turn the SmartKey to position 2 in the
ignition lock.
X To activate: press the ¬ button.
The indicator lamp above the ¬ button
lights up.
The
climate control system switches to the
following functions:
R heating with dehumidification on
R high airflow (depending on the outside
temperature)
R high temperature (depending on the
outside temperature)
R air distribution to the windshield and
front side windows
R air-recirculation mode off
X To deactivate: press the ¬ button.
The indicator lamp above the ¬ button
goes out. The previously selected settings
are restored. The heating with air
dehumidification function remains on. Air-
recirculation mode remains deactivated.
or
X Press the à button.
The indicator lamp above the ¬ button
goes

out. Airflow and air distribution are set
to automatic mode.
or
X Automatic climate control: press
temperature button E or H up or down
(Y page 139).
Automatic climate control: press
temperature button F or J up or down
(Y page 141).
or
X Automatic climate control: press switch
G up or down ( Y page 139).
Automatic climate control: press button
H up or down ( Y page 141).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.
X
To activate: press the Ù button.
The indicator lamp in the button lights up.
X To activate: press off-road button Ù
again.
The

indicator lamp goes out. The previously
selected settings are restored.
When you 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 ¿ cooling with air
dehumidification function.
X Activate automatic mode Ã.
X If the windows continue to fog up, activate
the defrosting function

(Y page 145).
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Automatic climate control: press switch
F up or down ( Y page 139) until the
P or O symbol appears in the
display.
X Automatic climate control: press button
I up or down ( Y page 141) until the
P or O symbol appears in the
display.
i You should only select this setting until
the windshield is clear again. 146
Operating the climate control systemsClimate control

Rear window defroster
Activating/deactivating G
WARNING
Clear all windows of ice or snow before setting
off. Otherwise, impaired visibility could
endanger you and others.
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 2 in the
ignition lock.
X Press the ¤ button.
The indicator lamp above the ¤ button
lights up or goes out.
Problems with the rear window
defroster The rear window defroster has deactivated
prematurely or cannot be activated.
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
G
WARNING
At low outside temperatures, only switch over
to air-recirculation mode for brief periods.
Otherwise, the windows could fog up, thus
impairing visibility and endangering yourself
and others. This may prevent you from
observing the traffic conditions and thereby
cause an accident. You can deactivate the flow of fresh air if
unpleasant odors are entering the 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 2 in the
ignition lock.
X To activate: press the g button.
The indicator lamp above the g button
lights up.
i In
the event of high pollution levels 2
or at
high outside temperatures, air-
recirculation mode is automatically
activated. When air-recirculation mode is
activated automatically, the indicator lamp
above the g button does not light up.
Outside air is added after about
30 minutes.
X To deactivate: press the g button.
The indicator lamp above the g button
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 †) Activating/deactivating the residual
heat function
The

residual heat function is only available in
vehicles for Canada with automatic climate
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
2 Automatic climate control only. Operating the climate control systems
147
Climate control Z

the engine has been switched off. The heating
time depends on the temperature that has
been set.
X
To activate: press the Ì button.
The indicator lamp above the Ì 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
medium speed.
X To deactivate: press the Ì button.
The indicator lamp above the Ì button
goes out.
i It is possible that the residual heat
function
may be activated automatically an
hour after the SmartKey is removed. The
vehicle is then ventilated for 30 minutes to
dry the air-conditioning system.
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 cause burns or frostbite to
bare skin in the immediate vicinity of the
vents. Keep bare skin away from these air
vents.

If necessary, direct the airflow away to
a different 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 between the windshield
and the hood free of blockages, such as ice,
snow or leaves.
R never cover the air vents or air intake grilles
in the vehicle interior. Setting the center air vents
: Center air vent, left
; Center air vent, right
= Center vent thumbwheel, right
? Center vent thumbwheel, left
X
To open/close: turn thumbwheels =
and ? up or down. Setting the side air vents
X
To open/close: turn
thumbwheel = up or
down. 148
Setting the air vents
Climate control

KEYLESS-GO
General notes
R
Do
not keep the KEYLESS-GO key together
with:
- electronic devices, e.g. a mobile phone
or another key
- metallic objects, e.g. coins or metal film
R Do not keep the KEYLESS-GO key in metal
objects, e.g. metal cases.
This can affect the functionality of
KEYLESS-GO.
Vehicles with KEYLESS-GO are equipped with
a SmartKey featuring an integrated KEYLESS-
GO start function and a detachable Start/
Stop button.
The Start/Stop button must be inserted into
the ignition lock and the SmartKey must be in
the vehicle.
Pressing the Start/Stop button several times
in succession corresponds to the different
SmartKey positions in the ignition lock. This
is only the case if you are not depressing the
brake pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts
immediately.
The Start/Stop button can be removed from
the ignition lock. Then, you can insert the
SmartKey into the ignition lock.
i You do not have to remove the Start/Stop
button from the ignition lock when you
leave the vehicle. You should, however,
always take the SmartKey with you when
leaving the vehicle. As long as the
SmartKey is in the vehicle:
R the vehicle can be started using the
Start/Stop button and
R electrically powered equipment can be
operated. Key positions with KEYLESS-GO
As soon as the ignition is switched on, all the
indicator

lamps in the instrument cluster light
up. If an indicator lamp does not go out after
starting the engine or lights up while driving,
see ( Y page 277).
X Insert Start/Stop button : into ignition
lock ;.
i When you insert Start/Stop button :
into ignition lock ;, the system needs
approximately

2 seconds' recognition time.
You can then use Start/Stop button :.
Activating power supply
X Position 0:
if Start/Stop button : has not
yet been pressed, this corresponds to the
SmartKey being removed from the ignition.
X Position 1: press Start/Stop button :.
The power supply is switched on. You can
now activate the windshield wipers, for
example.
i If
you then open the driver's door when in
this position, the power supply is
deactivated.
Switching on the ignition
X Position 2 (ignition): press Start/Stop
button : twice.
The ignition is switched on.
i The ignition is switched off when:
R the driver's door is opened and
R you press Start/Stop button : once
when in this position. 154
Driving
Driving and parking

Start/Stop button
=
USA only
? Canada only Starting the engine
Important safety notes G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these
exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces
without sufficient ventilation.
! Do not depress the accelerator pedal
when starting the engine.
General notes i
Vehicles with a gasoline engine: the
catalytic converter is preheated for up to
30

seconds after a cold start. The sound of
the engine may change during this time.
Automatic transmission X
Shift the transmission to position P.
The transmission position display in the
multifunction display shows P.
i You can also start the engine when the
transmission is in position N. Starting procedure with the SmartKey i
To start the engine using the SmartKey
instead of KEYLESS-GO, pull the Start/
Stop button out of the ignition lock.
X To start a gasoline engine: turn the
SmartKey
to position 3 (Y page 153) in the
ignition lock and release it as soon as the
engine is running.
X To start a diesel engine: turn the
SmartKey

to position 2 (Y page 153) in the
ignition lock.
The % preglow indicator lamp in the
instrument cluster lights up.
X When the preglow indicator lamp %
goes out, turn the SmartKey to position 3
(Y page 153) and release it as soon as the
engine is running.
i You
can start the engine without preglow
if the engine is warm.
Using KEYLESS-GO to start the engine G
WARNING
As long as the SmartKey is in your vehicle, the
vehicle
can be started. Therefore, never leave
children unattended in the vehicle, as they
could otherwise accidentally start the engine.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Do
not leave children unattended in the vehicle,
or with access to an unlocked vehicle. A
child's unsupervised access to a vehicle could
result in an accident and/or serious personal
injury.
i The Start/Stop button can be used to
start the vehicle manually without inserting
the SmartKey into the ignition lock. The
Start/Stop button must be inserted into
the ignition lock and the SmartKey must be
in the vehicle. This mode for starting the
engine operates independently of the ECO
start/stop automatic engine start function. Driving
155
Driving and parking Z