cooling MERCEDES-BENZ E-CLASS CABRIOLET 2015 Owners Manual

1, 2, 3 ...
12 V socket see Sockets
360° camera
Cleaning .........................................3 00
Display in the multimedia system .. 194
Function/notes ............................ .192 A
ABS (Anti-lock Braking System) Display message ............................ 230
Function/notes ................................ 62
Important safety notes .................... 62
Warning lamp ................................. 256
Accident
Automatic measures after an acci-
dent ................................................. 49
Activating media mode
General notes ................................ 270
Activating/deactivating air-recir-
culation mode ................................... .131
Activating/deactivating cooling
with air dehumidification ................. 127
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 222
Display message ............................ 242
Function/notes ............................ .203
Towing a trailer .............................. 205
Active Driving Assistance package .. 203
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 222
Display message ............................ 242
Function/notes ............................ .206
Towing a trailer .............................. 208
Active light function ......................... 117
Active Parking Assist
Detecting parking spaces .............. 184
Display message ............................ 243
Exiting a parking space .................. 186
Function/notes ............................ .183
Important safety notes .................. 183
Parking .......................................... 185
Towing a trailer .............................. 187
ADAPTIVE BRAKE ................................. 69 Adaptive Brake Assist
Function/notes ................................ 66
Adaptive brake lights .......................... 66
Adaptive Highbeam Assist Plus
Display message ............................ 237
Function/notes ............................ .117
Switching on/off ........................... 118
AdBlue ®
Display message ............................ 240
Filling capacity ............................... 340
Important safety notes .................. 340
Service indicator ............................ 295
AdBlue ®
service indicator ................ 295
Additional speedometer ................... 223
Additives (engine oil) ........................ 341
Address book
See also Digital Owner's Manual ... 263
Adjusting the volume
COMAND Online ............................ 264
Adjusting volume
Audio 20 ........................................ 264
Air conditioning
General notes ................................ 123
Air filter (white display message) .... 240
Air pressure
see Tyre pressure
Air vents
Glove compartment ....................... 136
Important safety notes .................. 136
Setting .......................................... .136
Setting the blower output of the
AIRSCARF vents ............................ .137
Setting the side air vents .............. .136
Switching AIRSCARF on/off .......... 106
Air-conditioning system
see Climate control
Airbag
Headbag .......................................... 44
Introduction ..................................... 42
PASSENGER AIR BAG OFF indica-
tor lamp .......................................... .38
Airbags
Front airbag (driver, front
passenger) ...................................... .43
Important safety guidelines .............42
Kneebag ........................................... 43
Pelvis airbag .................................... 44 Index
3

Driving tips .................................... 160
HOLD functio
n............................... 177
Important safety notes .................. 160
Parking brake ................................ 159
Warning lamp ................................. 255
Breakdown
Where will I find...? ........................ 304
see Flat tyre
Brightness control (instrument
cluster lighting) ................................... 31
Bulbs
see Replacing bulbs C
Calling up a fault see Display messages
Car
see Vehicle
Car wash (care) ................................. 295
Care
360° camera ................................. 300
AIRCAP .......................................... 298
Automatic car wash ....................... 295
Cabriolet soft top ........................... 298
Carpets .......................................... 303
Display ........................................... 301
Draught stop .................................. 298
Exhaust pipe .................................. 301
Exterior lighting ............................. 300
Gear or selector lever .................... 302
High-pressure cleaner .................... 297
Interior ........................................... 301
Matt paintwork .............................. 297
Note s............................................. 295
Paint .............................................. 297
Plastic trim .................................... 302
Reversing camera .......................... 300
Roof lining ...................................... 303
Seat belt ........................................ 303
Seat cove r..................................... 302
Sensors ......................................... 300
Steering wheel ............................... 302
Trim pieces .................................... 302
Washing by hand ........................... 296
Wheels ........................................... 299
Wind deflector ............................... 298
Windows ........................................ 299 Wiper blades .................................. 299
Wooden trim .................................. 302
CD
See also Digital Owner's Manua l... 263
CD player (on-board computer) ........ 218
Central locking
Automatic locking (on-board com-puter) ............................................. 225
Locking/unlocking (key) .................. 74
Changing bulbs
Main-beam headlamp s................... 120
Child
Restraint system .............................. 50
Child seat
Automatic recognition ..................... 51
Forward-facing restraint system ...... 54
ISOFIX .............................................. 51
On the front-passenger seat ............ 53
Problem (malfunction) ..................... 55
Rearward-facing restraint system .... 54
Recommendations ........................... 58
Suitable positions ............................ 55
Child seat lock ..................................... 50
Child-proof locks
Important safety notes .................... 60
Children
child seat lock .................................. 50
Cigarette lighter ................................ 280
Cleaning
Mirror turn signal ........................... 300
Trailer tow hitch ............................. 301
Climate control
Auxiliary heating/ventilation .......... 132
Controlling automaticall y............... 127
Convenience opening/closing
(air-recirculation mode) ................. 131
Cooling with air dehumidification .. 127
Demisting the windows .................. 129
Demisting the windscreen ............. 129
Indicator lamp ................................ 127
Information on using
THERMOTRONIC automatic cli-
mate control .................................. 125
Overview of systems ...................... 123
Problem with the rear window
heating .......................................... 131
Problems with cooling with air
dehumidification ............................ 127 6
Index

Rear control panel ........................
.124
Setting the air distribution ............. 128
Setting the air vents ..................... .136
Setting the airflow ......................... 129
Setting the climate mode .............. .128
Setting the temperature ................ 128
Setting the temperature,
THERMATIC ................................... 128
Setting the temperature,
THERMOTRONIC ............................ 128
Switching air-recirculation mode
on/off ............................................ 131
Switching on/off ........................... 125
Switching residual heat on/off ...... 132
Switching the rear window heat-
ing on/off ...................................... 130
Switching the ZONE function on/
off ................................................. .129
THERMATIC automatic climate
control (2-zone) ............................ .124
THERMOTRONIC (3-zone) auto-
matic climate control ..................... 124
Cockpit
Overview .......................................... 29
see Instrument cluster
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 221
Display message ............................ 232
Operation/notes .............................. 64
COMAND display
Cleaning ......................................... 301
COMAND Online
Switching on/off ........................... 263
Combination switch .......................... 116
Connecting a USB device
See also Digital Owner's Manual ... 263
Consumption statistics (on-board
computer) .......................................... 216
Controller .......................................... .264
Convenience opening/closing (air-
recirculation mode) ........................... 131
Coolant (engine)
Checking the level ......................... 292
Display message ............................ 238
Important safety notes .................. 341
Temperature gauge ........................ 213
Warning lamp ................................. 259 Cooling
see Climate control
Copyright ............................................. 28
Cornering light function
Display message ............................ 236
Function/notes ............................ .117
Cruise control
Activation conditions ..................... 164
Cruise control lever ....................... 163
Deactivating ................................... 165
Display message ............................ 245
Driving system ............................... 163
Important safety notes .................. 163
LIM indicator lamp ......................... 163
Selecting ........................................ 163
Setting a speed .............................. 165
Storing and maintaining current
speed ............................................. 164
Cup holder
Centre console .............................. 278
Important safety notes .................. 277
Rear compartment ......................... 279 D
Dashboard see Instrument cluster
Data
see Technical data
Data carrier
Selecting ........................................ 218
Data modem mode
Telephone with Bluetooth ®
(SAP
profile) .......................................... .269
Daytime driving lights
Display message ............................ 236
Function/notes ............................ .114
Switching on/off (on-board com-
puter) ............................................. 224
Dealership
see Qualified specialist workshop
Declarations of conformity ................. 26
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 225
Interior lighting .............................. 225
Diagnostics connection ......................26
Diesel .................................................. 339 Index
7

Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise
mist up.
To prevent the windows from misting up:
R switch off climate control only briefly
R activate air-recirculation mode only briefly
R switch on "Cooling with air dehumidification"
R activate the windscreen demisting function
briefly, if required
Climate control regulates the temperature and
the humidity in the vehicle interior and filters
undesirable substances out of the air.
Climate control is only operational when the
engine is running. Optimum operation is only
achieved when the side windows and the roof
are closed.
The "Residual heat" function can only be activa- ted or deactivated with the ignition switched off
(Y page 132).
i Ventilate the vehicle for a brief period during
warm weather. This will speed up the cooling process and the desired interior temperaturewill be reached more quickly.
i The integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odours. A clogged filter reduces the
amount of air supplied to the vehicle interior.
For this reason, you should always observe
the interval for replacing the filter, which is
specified in the Service Booklet. As this
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet.
i It is possible that the residual heat function
may be activated automatically an hour after
the key has been removed. The vehicle is then ventilated for 30 minutes to dry the automaticclimate control. Overview of climate control systems
123Climate control

Control panel for THERMATIC automatic climate control (2-zone)
:
To switch air-recirculation mode on/off (Y page 131)
; To demist the windscreen (Y page 129)
= To switch the ZONE function on/off (Y page 129)
? Display
A To set climate control to automatic mode (Y page 127)
B To activate/deactivate cooling with air dehumidification (Y page 127)
C To switch the rear window heating on/off (Y page 130)
D To switch the climate control on/off (Y page 125)
E To set the temperature, right (Y page 128)
F To set the air distribution (Y page 128)
G To set the airflow (Y page 129)
H To set the temperature, left (Y page 128)Control panel for THERMOTRONIC automatic climate control (3-zone)
Front control panel
: To set climate control to automatic mode (Y page 127)124
Overview of climate control systemsClimate control

;
To demist the windscreen (Y page 129)
= To switch the ZONE function on/off (Y page 129)
? Display
A To switch air-recirculation mode on/off (Y page 131)
B To switch the residual heat on/off (Y page 132)
C To activate/deactivate cooling with air dehumidification (Y page 127)
D To switch the rear window heating on/off (Y page 130)
E To switch the climate control on/off (Y page 125)
F To set the temperature, right (Y page 128)
G To set the climate mode (Y page 128)
H To set the airflow (Y page 129)
I To set the air distribution (Y page 128)
J To set the temperature, left (Y page 128)
Rear control panel
K To increase the temperature (Y page 128)
L Display
M To reduce the temperature (Y page 128)Notes on using the automatic climate
control
Automatic climate control Below, you can find a number of notes and rec-
ommendations to help you use climate control
optimally.
R Activate climate control using the Ãand
¿ buttons. The indicator lamps above the
à and¿ buttons light up.
R Vehicles with THERMOTRONIC: in automatic
mode, you can also set the climate mode
(FOCUS, MEDIUM or DIFFUSE). The MEDIUM
level is recommended.
R Set the temperature to 22 †.
R Only use the "Windscreen demisting" function
briefly until the windscreen is clear again.
R Only use air-recirculation mode briefly, e.g. if
there are unpleasant outside odours or when
in a tunnel. The windows could otherwise mist
up as no fresh air is drawn into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side and the rear compart-
ment as well. The indicator lamp above the
á button goes out.
R Vehicles with THERMOTRONIC: use the resid-
ual heat function if you want to heat or venti-
late the vehicle interior when the ignition is switched off. The residual heat function can
only be activated or deactivated with the igni-
tion switched off.
R If you change the settings of the climate con-
trol system, the climate status display
appears for approximately three seconds at
the bottom of the screen in the multimedia
system display. You will see the current set-
tings of the various climate control functions.
ECO start/stop function During automatic engine switch-off, the climate
control only operates at a reduced capacity. If
you require the full climate control output, you
can switch off the ECO start/stop function by
pressing the ECO button (Y page 143). Operating the climate control system
Switching the climate control on/off
General notes When climate control is switched off, the air
supply and air circulation are also switched off.
The windows could mist up. Therefore, only
switch off climate control briefly.
i Switch on climate control primarily using
the à button (Y page 127). Operating the climate control system
125Climate control

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 mist 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 cooling mode is active. This is normal
and not a sign that there is a malfunction.
Activating/deactivating X
To switch on: press the¿button.
The indicator lamp above the ¿button lights up.
i In vehicles with auxiliary heating, one of the indicator lamps on the auxiliary heating button lights
up when the "Cooling with air dehumidification" function is activated.
X To switch off: 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 Problem
Possible causes/consequences and
M MSolutions The indicator lamp over
the
¿ button flashes
three times or remains
off. The cooling with air
dehumidification func-
tion cannot be activated. The cooling with air dehumidification function has been deactivated
due to a malfunction.
X Consult a qualified specialist workshop. Setting climate control to automatic
mode
General notes In automatic mode, the set temperature is main-
tained automatically at a constant level. The
system automatically regulates the temperature of the dispensed air, the airflow and the air dis- tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode. Automatic control X
Turn the key to position 2in the ignition lock
(Y page 139).
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lamp above the Ãbutton
lights up. Automatic air distribution and air-
flow are activated.
i THERMOTRONIC automatic climate control:
when automatic mode is activated, you can
set the climate mode (Y page 128).
X To switch to manual mode:
THERMATIC automatic climate control: press
air distribution adjustment switch F
(Y page 124). Operating the climate control system
127Climate control

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.
Setting the air distribution X
Turn the key to position 2in the ignition lock
(Y page 139).
X THERMATIC automatic climate control: press
air distribution adjustment switch Fup or
down, until the desired symbol appears in the
display (Y page 124).
X THERMOTRONIC automatic climate control:
press air distribution adjustment switch Iup
or down, until the desired symbol appears in
the display (Y page 124). Setting the airflow
THERMATIC automatic climate control X
Turn the key to position 2in the ignition lock
(Y page 139).
X To increase or reduce: press airflow adjust-
ment switch Gup or down (Y page 124).
THERMOTRONIC automatic climate
control X
Turn the key to position 2in the ignition lock
(Y page 139).
X To increase or reduce: press airflow adjust-
ment switch Hup or down (Y page 124).
If the battery is not charged sufficiently, the
blower output may be reduced. Once the battery
is sufficiently charged again, full blower output
will be available. Switching the ZONE function on/off
X To activate: press theábutton.
The indicator lamp above the ábutton
lights up.
THERMATIC automatic climate control: the
temperature setting for the driver's side is not
adopted for the front-passenger side.
THERMOTRONIC 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 theábutton.
The indicator lamp above the ábutton
goes out.
THERMATIC automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side.
THERMOTRONIC automatic climate control:
the temperature setting for the driver's side is adopted for the front-passenger side and the
rear compartment. Demisting the windscreen
You can use this function to defrost the wind-
screen or to demist the inside of the windscreen and the side windows.
Switch off the windscreen demisting function as
soon as the windscreen is clear again.
X Turn the key to position 2in the ignition lock
(Y page 139).
X To activate: press the¬button.
The indicator lamp above the ¬button
lights up.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windscreen and front
side windows
R air-recirculation mode off
If the battery is not charged sufficiently, the
blower output may be reduced. Once the battery is sufficiently charged again, full blower output
will be available again.
X To deactivate: press the¬button.
The indicator lamp above the ¬button
goes out. The previous settings are reactiva-
ted. Air-recirculation mode remains deactiva- ted. Demisting the windows
Windows misted up on the inside X
Activate the ¿cooling with air dehumidi-
fication function.
X Activate automatic mode Ã. Operating the climate control system
129Climate control

Problems with the rear window heating
Problem
Possible causes/consequences and
M
MSolutions The rear window heating
has switched off prema-
turely or cannot be acti-
vated. 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 heating
can be activated again. Switching air-recirculation mode
on/off
General notes You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle from
outside. The air already inside the vehicle will
then be recirculated.
If you activate air-recirculation mode, the win-
dows can mist up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows misting up.
Activating/deactivating X
Turn the key to position 2in the ignition lock
(Y page 139).
X To activate: press thegbutton.
The indicator lamp above the gbutton
lights up.
X To deactivate: press thegbutton.
The indicator lamp above the gbutton
goes out.
i Air-recirculation mode is deactivated auto-
matically:
R after approximately five minutes at outside
temperatures below approximately 5 †
R after approximately five minutes if cooling
with air dehumidification is deactivated
R after approximately 30 minutes at outside
temperatures above approximately 5 † if
the "Cooling with air dehumidification"
function is activated Convenience opening or closing using
the air-recirculation button G
WARNING
When using convenience closing, you could
become trapped within the sweep of the clos- ing window. There is a risk of injury.
Monitor the entire closing procedure when
using convenience closing. When closing,
make sure that no one has any parts of the
body within the closing area. G
WARNING
During convenience opening parts of the body could be drawn in or become trapped
between the side window and window frame.
There is a risk of injury.
When opening, make sure that nobody is
touching the side window. If someone
becomes trapped, immediately press
the W switch in the door to stop the move-
ment of the side windows. To continue closing
the side window, pull on the Wswitch.
X Convenience closing feature: press and
hold the gbutton until the side windows
are closed.
The indicator lamp above the gbutton
lights up. Air-recirculation mode is activated.
If parts of the body are in the closing area during convenience closing, proceed as follows:
X Press the Wbutton to stop the side win-
dows.
The side windows stop.
X To then open the side windows, press the
W button again.
i Notes on the reversing feature for the side
windows (Y page 85) Operating the climate control system
131Climate control Z

Problems with the auxiliary heating/ventilation
Problem
Possible causes/consequences and
M
MSolutions FAIL
¨ The signal transmission between the transmitter and the vehicle is
faulty.
X
Change your position in relation to the vehicle, moving closer if
necessary. FAIL The auxiliary heating cannot be switched on or has switched itself off.
The starter battery is not sufficiently charged.
X Charge the starter battery. The fuel tank content is below the reserve fuel level.
X Refuel at the nearest filling station. The auxiliary heating or auxiliary ventilation is faulty.
X Have the auxiliary heating or auxiliary ventilation checked at a
qualified specialist workshop. 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.
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 windscreen and
the bonnet free of blockages, such as ice,
snow or leaves.
R never cover the vents or ventilation grilles in
the vehicle interior. Adjusting the air vents
Example
:
Demister vent
; Side air vent
= Thumbwheel for side air vent
X To open or close: turn thumbwheel=up or
down. Adjusting the glove compartment air
vent
! Close the air vent when heating the vehicle.
At high outside temperatures, open the air
vent and activate the "cooling with air dehu-
midification" function. Otherwise, tempera-
ture-sensitive items stored in the glove com-
partment could be damaged. 136
Air ventsClimate control