climate control MERCEDES-BENZ E-CLASS CABRIOLET 2012 Owners Manual

Index
....................................................... 4Introduction
......................................... 21 At
ag lance ........................................... 27 Safety
................................................... 39 Opening and closing
...........................75 Seats, steering wheel and mirrors
..107 Lights and windscreen wipers
.........121 Climate control
................................. 139 Driving and parking
..........................157 On-board computer and displays
....227 Stowing and features
.......................285 Maintenance and care
......................305 Breakdown assistance
.....................321 Wheels and tyres
.............................. 339 Technical data
................................... 367 Contents
3

1, 2, 3 ...
12 Vsocket
see Socket A
ABS (Anti-lock Braking System) Display message ............................ 250
Function/notes ................................ 65
Important safety notes ....................65
Warning lamp ................................. 277
Activating/deactivating air-recir-
culation mode .................................... 147
Activating/deactivating cooling
with air dehumidification .................143
Active Blin dSpot Assist
Activating/deactivating (on-
board computer) ............................ 241
Display message ............................ 264
Function/notes ............................. 214
Towing atrailer .............................. 217
Active Driving Assistance package .214
Active Lane Keeping Assist Activating/deactivating (on-
board computer) ............................ 241
Display message ............................ 264
Function/notes ............................. 218
Towing atrailer .............................. 220
Active light function .........................128
Active Service System see ASSYST PLUS
ADAPTIVE BRAKE ................................. 69
Adaptive brake lamps .........................67
Adaptive Highbeam Assist Display message ............................ 259
Function/notes ............................. 129
Adaptive Main-beam Assist
Switching on/off (on-board com-
puter) ............................................. 244
Additional speedometer ...................242
Additives (engine oil) ........................376
Adjusting the headlamp range .........126
Airbag Headbag .......................................... 46Airbags
Front airbag (driver, front
passenger )....................................... 44
Important safety guidelines .............42
Kneebag .......................................... .45
Pelvis airbag .................................... 46
Sidebag ............................................ 45
Triggering ......................................... 41
Windowba g...................................... 47
AIRCAP
Cleaning instructions .....................315
Extending/retracting .....................100
Fitting/removing the wind deflec-
tor .................................................. 101
Important safety notes ..................100
Air-conditioning system
see Climate control
Airf ilter (white display message) ....262
Air pressure see Tyre pressure
AIRSCARF
Setting the vents ........................... 155
Switching on/off ........................... 115
Airv ents
Glove compartmen t....................... 154
Important safety notes ..................153
Rea r............................................... 154
Setting ........................................... 153
Setting the AIRSCARF vents ..........155
Setting the centre air vents ...........154
Setting the side air vents ...............154
Switching AIRSCARF on/off ..........115
Alarm system
see ATA (Anti-Theft Alarm system)
Anti-glare film .................................... 303
Anti-loc kBraking System
see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Aquaplaning ....................................... 181
Ashtray ............................................... 294
Assistance menu (on-board com-
puter) ................................................. .239
ASSYST PLUS Displaying a service message ........311
Hiding a service message ..............311
Notes ............................................. 3114
Index

Changing bulbs
Dipped-beam headlamps ...............134
Important safety notes ..................132
Main-beam headlamps ................... 134
Overview of bul btypes .................. 133
Parking lamps (front) .....................134
Standing lamps .............................. 134
Turn signals (front) ......................... 135
Child-proof locks
Important safety notes ....................63
Children
child seat lock .................................. 55
In the vehicle ................................... 53
Restraint systems ............................ 53
Child seat
Automatic recognition .....................56
ISOFIX .............................................. 57
On the front-passenger sea t............ 55
Problem (malfunction) .....................60
Recommendations ...........................62
Suitable positions ............................ 60
Top Tether ....................................... 58
Child seat lock ..................................... 55
Cigarette lighter ................................ 294
Cleaning Mirro rturn signal ........................... 316
Trailer tow hitch ............................. 317
Climate control
Auxiliary heating/ventilation .......... 149
Controlling automatically ...............144
Convenience opening/closing
(air-recirculatio nmode) ................. 148
Cooling with aird ehumidification..143
Demisting the windows .................. 147
Demisting the windscreen .............146
Important safety notes ..................140
Indicator lamp ................................ 144
Information on using
THERMOTRONIC automatic cli-
mate control .................................. 143
Notes on using THERMATIC auto-
matic climate control .....................141
Overview of systems ......................140
Problems with cooling with air
dehumidification ............................ 144
Problem with the rear window
heating .......................................... 147
Rea rcontrol panel ......................... 142Setting the aird
istribution.............145
Setting the airflow .........................146
Setting the airv ents...................... 153
Setting the climate mode .............. .144
Setting the temperature ................144
Switching air-recirculation mode
on/off ............................................ 147
Switching on/off ........................... 143
Switching residual hea ton/off ......148
Switching the rear window heat-
ing on/off ...................................... 147
Switching the ZONE function on/
off .................................................. 146
THERMATIC automatic climate
control (2-zone) ............................. 141
THERMOTRONIC (3-zone) auto-
matic climate control .....................142
Cockpit
Overview .......................................... 28
see Instrument cluster
COMAND display
Cleaning ......................................... 318
COMAND Online
see separate operating instructions
Combination switch ..........................126
Consumption statistics (on-board
computer) .......................................... 233
Convenience closing feature ..............90
Convenience opening/closing (air-
recirculation mode) ........................... 148
Convenience opening feature ............90
Coolan t(engine)
Checkin gthe level ......................... 310
Display message ............................ 259
Important safety notes ..................376
Temperature gauge ........................ 230
Warning lamp ................................. 281
Cooling
see Climate control
Cornering light function
Display message ............................ 256
Function/notes ............................. 128
Crash-responsive emergency light-
ing ....................................................... 132
Cruise control Activation conditions .....................183
Cruise control leve r....................... 183
Deactivating ................................... 185 Index
7

Fuel
Additives ........................................ 373
Consumptio ninformation ..............374
Consumption statistics ..................233
Displaying the current consump-
tion ................................................ 234
Displaying the range ......................234
Fuel gauge ............................... 30, 229
Grade (petrol) ................................ 372
Important safety notes ..................372
Problem (malfunction) ...................176
Quality (diesel )............................... 373
Refuelling ...................................... .173
Tank content/reserve fuel .............372
Fuel filler flap
Opening/closing ............................ 174
Fuel filte r(white display message) .262
Fuel level Calling up the range (on-board
computer) ...................................... 234
Gauge ...................................... 30, 229
Fuel reserve
see Fuel
Fuel tank
Capacity ........................................ 372
Problem (malfunction) ...................176
Fuse allocation chart (vehicle tool
kit) ...................................................... 323
Fuses Allocation chart ............................. 336
Before changing ............................. 336
Dashboard fuse box .......................336
Fuse box in the boot ......................337
Fuse box in the engine compart-
ment .............................................. 337
Important safety notes ..................336 G
Garage door opener Clearing the memory .....................299
Frequencies ................................... 299
Important safety notes ..................297
Opening/closing the garage door ..299
Programming (button in the rear-
view mirror) ................................... 297
Genuine Mercedes-Benz parts .........368
Glove compartment ..........................287 H
Handbrake see Parking brake
Hazard warning lamps ......................127
Headbag Display message ............................ 255
Operation ........................................ .46
Headlamp
Cleaning system (function) ............128
Cleaning system (notes) ................377
Headlamps
Misting up ...................................... 131
Topping up the cleaning system ....310
see Automatic headlamp mode
Head level heating (AIRSCARF) ........115
Head restraint Lowering manually (rear) ...............111
Head restraints
Adjusting ....................................... 111
Adjusting (electrically). ..................111
Adjusting (manually). .....................111
Adjusting (rear) .............................. 111
see NECK-PR Ohead restraints
Heating
see Climate control
High-pressure cleaners ....................313
Hill start assist .................................. 162
HOLD function Display message ............................ 263
Function/notes ............................. 198 I
Ignition lock see Key positions
Immobiliser .......................................... 71
Indicator and warning lamps Coolant .......................................... 281
DISTRONI CPLUS ........................... 283
Engine diagnostics .........................280
Indicator lamps
Display message ............................ 256
see Warning and indicator lamps
Insectp rotection on the radiator ....308
Inspection see ASSYST PLUS Index
11

Senso
rrang e................................. 200
Trailer towing ................................. 202
Warning displa y............................. 201
PASSENGE RAIRBAG OFF warning
lamp ...................................................... 56
Petrol .................................................. 372
Plastic trim (cleaning instructions) .318
Power windows see Side windows
PRE-SAFE ®
(preventive occupant
safety system) Display message ............................ 253
Operation ........................................ .48
PRE-SAFE ®
Brake
Activating/deactivating .................240
Display message ............................ 253
Function/notes ................................ 69
Warning lamp ................................. 283
Product information ............................21
Program selector button ..................169
Protection of the environment General notes .................................. 21
Pulling away
Automatic transmission .................161
Manual transmission ..................... .161 Q
Qualifie dspecialis tworkshop ...........23 R
Radar sensors Overview ........................................ 382
Radar sensor system
Activating/deactivating .................245
Display message ............................ 263
Radiator cover ................................... 308
Radio Selecting astation ......................... 236
see separate operating instructions
Rain closing feature
Panorama sliding sunroo f.............. 104
Reading lamp ..................................... 131
Rear compartment Setting the airv ents...................... 154
Setting the temperature ................144Rear-compartment seat belt sta-
tus indicator
........................................ 52
Rear foglamp Display message ............................ 258
Switching on/off ........................... 125
Rear seat
Display message ............................ 271
Rear-view mirror
Anti-dazzle mode (automatic) ........119
Dipping (manual) ........................... 117
Rear window blind ............................293
Rear window heating Problem (fault) ............................... 147
Switching on/off ........................... 147
Refuelling
Fuel gauge ............................... 30, 229
Important safety notes ..................173
Refuelling proces s......................... 174
see Fuel
Releasing the parking loc kman-
ually (automatic transmission) ........173
Remote control Auxiliary heating/ventilation .......... 150
Changing the batteries (auxiliary
heating) ......................................... 151
Garage door opener .......................297
Programming (garage door
opener) .......................................... 297
Replacing the battery (auxiliary
heating remote control) .................... 151
Reserve (fuel tank) see Fuel
Reserve fuel
Display message ............................ 261
Warning lamp ................................. 281
Residual heat (climate control) ........148
Restraint system see SRS (Supplemental Restraint
System)
Rev counter ........................................ 231
Reverse gear Engaging (automatic transmis-
sion) ............................................... 168
Engaging (manual transmission) ....167 Index
15

Surround lighting (on-board com-
puter)
.................................................. 244
Switching off the alarm (ATA) ............71 T
Tail lamps Display message ............................ 257
Tank
see Fuel tank
Technical data
Emergency spare wheel .................364
Information .................................... 368
Trailer loads ................................... 381
Tyres/wheels ................................. 350
Vehicle data ................................... 378
Telephone
Accepting acall............................. 238
Display message ............................ 273
Menu (on-board computer) ............238
Number from the phone book ....... .238
Redialling ....................................... 239
Rejecting/ending acall................. 238
Telephone compartment ................287
Temperature
Coolant .......................................... 230
Outside temperature ..................... .231
Setting (climate control) ................144
TEMPOMAT
Function/notes ............................. 182
Theft-deterrent system
ATA (Anti-Theft Alarm system) .........71
Immobiliser ...................................... 71
Through-loading ................................ 288
Through-loading feature ...................288
Time see Separate Owner' smanual
Tiredness Assist
see ATTENTION ASSIST
TIREFIT kit .......................................... 325
Top Tether ............................................ 58
Total distance recorder ....................233
Tow-away protection ..........................71
Towing Important safety notes ..................333
With the rear axle raised ................334Towing
atrailer
Activ eBlind Spot Assist .................217
Active Lane Keeping Assist ............220
Axle load, permissible ....................381
Bulb failure indicator for LED
lamps ............................................. 224
ESP ®
(Electronic Stability Pro-
gram) ............................................... 68
Towing away
Fitting the towing eye. ...................334
Removing the towing eye. ..............334
With both axles on the ground .......335
Tow-starting
Emergency engine starting ............335
Important safety notes ..................333
Removing the towing eye. ..............334
Trailer
Display message ............................ 272
Trailer coupling
see Towing atrailer
Trailer towing
7-pin connector ............................. 225
Blind Spot Assist ............................ 212
Cleaning the trailer tow hitch ......... 317
Coupling up atrailer ...................... 223
Decoupling atrailer ....................... 223
Driving tips .................................... 221
Folding in the ball coupling ............223
Folding out the ball coupling ..........222
Important safety notes ..................220
Lights displa ymessage .................. 256
Mounting dimensions ....................380
Parking Guidance ........................... 206
Parktroni c...................................... 202
Power supply ................................. 224
Shift range ..................................... 169
Trailer loads ................................... 381
Transmission
see Automatic transmission
see Manual transmission
Transporting the vehicle ..................335
Trim pieces (cleaning instructions) .318
Trip computer (on-board com-
puter) ................................................. .233
Trip meter Calling up ....................................... 233
Resetting (on-board computer) ......234 18
Index

Cockpit
Function Page
:
Automatic transmission:
steering wheel gearshift
paddles
170
;
Cruise control lever 183
=
Instrument cluster 30
?
Horn
A
PARKTRONIC warning dis-
play
200
B
Overhead control panel 36
C
Climate control systems 140
D
Ignition lock 159
Start/Stop button
159 Function Page
E
Adjusts the steering wheel
manually 115
F
Adjusts the steering wheel
electrically 115
G
Combination switch 126
H
Parking brake 178
I
Diagnostics connection 23
J
Opens the bonnet 307
K
Releases the parking brake 178
L
Ligh
tswitch 12328
CockpitAt a glance

i
Illustration: Coupé Function Page
:
Overhead control panel 36
;
PARKTRONIC warning dis-
play
200
=
Cruise control lever 183
?
Instrument cluster 30
A
Horn
B
Automatic transmission:
steering wheel gearshift
paddles
170
C
Light switch 123
D
Releases the parking brake
178 Function Page
E
Opens the bonnet 307
F
Diagnostics connection 23
G
Ignition lock 159
Start/Stop button 159
H
Adjusts the steering wheel
manually
115
I
Adjusts the steering wheel
electrically
115
J
Combination switch 126
K
Parking brake 178
L
Climate control systems 140Cockpit
29At a glance

Useful information
............................140
Overview of climate control sys-
tems ................................................... 140
Operating the climate control sys-
tem ..................................................... 143
Adjusting the air vents .....................153 139Climate control

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos-
sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 23). Overview of climate control systems
Important safety notes
G
WARNING
Observe the settings recommended on the
following pages. The windows could other-
wise mist up. This may preven tyou from
observing the traffic conditions, thereby caus-
ing an accident.
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. The system only works
optimally if the side windows and the roof are
closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 148).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 90). This
will speed up the cooling process and the
desired vehicle interior temperature will be
reached more quickly.
i The integrated filter can filter out most
particles of dust and completely filters out
pollen. Aclogged 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 it
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 func-
tion may be activated automatically an hour
after the key has been removed. The vehi-
cle is then ventilated for 30minutes to dry
the air-conditioning system. 140
Overview of climate control systemsClimate control