2014 MERCEDES-BENZ E-Class CABRIOLET light

Problems with the "Cooling with air dehumidification" function
Problem Possible causes/consequences and
0001 Solutions
The indicator lamp in
the
0005 button
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.
X
Visit a qualified specialist workshop. Setting climate control to automatic
General notes 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.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If necessary, cooling
with air dehumidification can be deactivated.
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.
Activating/switching
X
Turn the SmartKey to position 2in the
ignition lock (Y page 165).
X Set the desired temperature.
X To activate: press the0004button.
The indicator lamp above the 0004button
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 (Y page 154).
X To switch to manual mode: Dual-zone automatic climate control: press
air distribution adjustment button
0017(Y
page 149).
3-zone automatic climate control: press air
distribution adjustment button
001B(Y page 151).
The indicator lamp above the 0004button
goes out.
or
X Dual-zone automatic climate control: press
airflow adjustment button 0018(Ypage 149).
3-zone automatic climate control: press
airflow adjustment button 001A(Ypage 151).
The indicator lamp above the 0004button
goes out. Adjusting the climate mode settings
The "Set climate mode" function is only
available with 3-zone automatic climate
control.
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 154
Operating the climate control systemsClimate control

Setting the air distribution
X
Turn the SmartKey to position 2in the
ignition lock (Y page 165).
X Dual-zone automatic climate control: press
air distribution adjustment button 0017up or
down, until the desired symbol appears in
the display (Y page 149).
X 3-zone automatic climate control: press air
distribution adjustment button 001Bup or
down, until the desired symbol appears in
the display (Y page 151). Setting the airflow
Dual-zone automatic climate control X
Turn the SmartKey to position 2in the
ignition lock (Y page 165).
X To increase/reduce: press airflow switch
0018 up or down (Y page 149).
3-zone automatic climate control X
Turn the SmartKey to position 2in the
ignition lock (Y page 165).
X To increase/reduce: press airflow switch
001A up or down (Y page 151).
If the battery is not sufficiently charged,
blower output may be reduced. As soon as
the battery is sufficiently charged, full blower
output will be available. Switching the ZONE function on/off
X To activate: press the0003button.
The indicator lamp above the 0003button
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 the0003button.
The indicator lamp above the 0003button
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 "Windshield defrosting"
function as soon as the windshield is clear
again.
X Turn the SmartKey to position 2in the
ignition lock (Y page 165).
X To activate: press the0009button.
The indicator lamp above 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
If the battery is not sufficiently charged,
blower output may be reduced. Once the
battery is sufficiently charged again, full
blower output will be available again.
X To deactivate: press the0009button.
The indicator lamp above the 0009button
goes out. The previously selected settings
are restored. Air-recirculation mode
remains deactivated.
or 156
Operating the climate control systemsClimate control

X
Press the 0004button.
The indicator lamp above the 0009button
goes out. Airflow and air distribution are set
to automatic mode.
or
X Dual-zone automatic climate control: press
temperature selection switch 0016or001A up
or down (Y page 149).
3-zone automatic climate control: press
temperature selection switch 0017or001C up
or down (Y page 151).
or
X Dual-zone automatic climate control: press
airflow switch 0018up or down
(Y page 149).
3-zone automatic climate control: press
airflow switch 001Aup or down
(Y page 151). 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 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.
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 0005cooling with air
dehumidification function.
X Activate automatic mode 0004.
X Adjust the side air vents so that the warmed
air is directed to the side windows.
X If the windows continue to fog up, activate
the 0009 "Windshield defrosting" function.
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Dual-zone automatic climate control: press
air distribution adjustmen tbutton 0017up or
down (Y page 149), until the 0018or
0017 symbol appears in the display.
X 3-zone automatic climate control :press air
distributio nadjustment button 001Bup or
down (Y page 151), until the 0018or
0017 symbol appears in the display.
X Adjust the side air vent sso that no air is
directed to the side windows. Rear window defroster
General notes 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.
Activating/deactivating
X
Turn the SmartKey to position 2in the
ignition lock (Y page 165).
X Press the 000Dbutton.
The indicator lamp above the 000Dbutton
lights up or goes out. Operating the climate control systems
157Climate 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, 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 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.
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.
The operation of air-recirculation mode is the
same for all control panels.
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 165).
X To activate: press the0013button.
The indicator lamp above the 0013button
lights up.
i Dual-zone automatic climate control: air-
recirculation mode is automatically
activated at high outside temperatures.
3-zone automatic climate control: 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 above the 0013
button does not light up. Outside air
is added after about 30 minutes.
X To deactivate: press the0013button.
The indicator lamp above the 0013button
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 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 vehicle
for approximately 30 minutes after the engine
has been switched off. The heating time
depends on the temperature that has been
set.
Coupe: optimum operation of the residual
heat function is only achieved with the side158
Operating the climate control systemsClimate control

windows and panorama roof with power tilt/
sliding panel closed.
Cabriolet: optimum operatio nofthe residual
heat function is only achieved when the soft
top is closed.
Activating/deactivating X
Turn the SmartKey to position 0in the
ignition lock or remove it (Y page 165).
X To activate: press the0002button.
The indicator lamp above the 0002button
lights up.
i If the residual heat function is activated,
the windows may fog up on the inside.
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 the0002button.
The indicator lamp above the 0002button
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.T his 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. 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
0002
Center air vent, left
0003 Center air vent, right
0023 Center vent thumbwheel, right
0022 Center vent thumbwheel, left
X To open/close: turn thumbwheels 0023
and 0022up or down. Setting the side air vents
0002
Defroster vent
0003 Side air vent
0023 Control for side air vent Setting the air vents
159Climate control Z

Key positions with KEYLESS-GO
As soo
nas 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 0002into ignition
lock 0003.
i When you insert Start/Stop button 0002
into ignition lock 0003, the system needs
approximately two seconds recognition
time. You can then use Start/Stop
button 0002.
Activating power supply
X Position 0: if Start/Stop button 0002has not
yet been pressed, this corresponds to the
SmartKey being removed from the ignition.
X Position 1: press Start/Stop button 0002.
The power supply is switched on. You can
now activate the windshield wipers, for
example.
Switching on the ignition
X Position 2(ignition): press Start/Stop
button 0002twice.
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 0002once
when in this position. Start/Stop button
0023
USA only
0022 Canada only Starting the engine
Important safety notes G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shift the automatic transmission out of
parking position P.
R starting the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children. 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 166
DrivingDriving and parking

Deactivating/activating the ECO start/
stop function
ECO button
X
To switch off: press button0002.
Indicator lamp 0003and the 000Csymbol in
the multifunction display go out.
X To switch on: press button0002.
Indicator lamp 0003lights up. If all conditions
fo ra utomatic engine switch-off
(Y page 169) are fulfilled, the 000Csymbol
is shown in green in th emultifunction
display.
If not all conditions for automatic engine
switch-off (Y page 169) are fulfilled, the
000C symbol is shown in yellow in the
multifunction display. If this is the case, the
ECO start/stop function is no tavailable.
i If indicator lamp 0003is 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 vehicl estops. 170
DrivingDriving an
d parking

Problems with the engine
Problem Possible causes/consequences and
0001 Solutions
The engine does not
start. The starter motor
can be heard. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
X Before attempting to start the engine again, turn the SmartKey
in the ignition back to position 0or press the Start/Stop button
repeatedly until all indicator lamps in the instrumen tcluster go
out.
X Try to start the engine again (Y page 166). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak
or discharged.
X
Jump-star tthe vehicle (Y page 334).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. The engine is not
running smoothly and
is misfiring. There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it. The coolant
temperature gauge
shows a value above
248 ‡ (120 †). The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 315). Observe the warning
notes as you do so and add coolant if necessary. Driving
171Driving and parking Z