cooling MERCEDES-BENZ E-Class WAGON 2012 W212 Owner's Manual

1, 2, 3 ...
115 V socket ...................................... 295
12 V socket see Sockets
4ETS
see ETS/4ETS (Electronic
Traction System)
4MATIC (permanent four-wheel
drive) .................................................. 192
4MATIC off-road system ................... 192
A
ABS (Anti-lock Braking System) Display message ............................ 235
Function/notes ................................ 64
Important safety notes ....................64
Warning lamp ................................. 264
Activating/deactivating cooling
with air dehumidification ................. 134
Active Blind Spot Assist Activating/deactivating (on-
board computer) ............................ 225
Function/information ....................207
Active Driving Assistance package . 206
Active Lane Keeping Assist Activating/deactivating (on-
board computer) ............................ 225
Display message ............................ 250
Function/information ....................210
Active Light System
Display message ............................ 244
Active multicontour seat .................. 102
Active service system PLUS see ASSYST PLUS service interval
display
ADAPTIVE BRAKE ................................. 69
Adaptive Highbeam Assist Display message ............................ 245
Function/notes ............................. 118
Switching on/off (on-board
computer) ...................................... 227
Additives (engine oil) ........................ 388
Air bags Display message ............................ 241
Front air bag (driver, front
passenger) ....................................... 41
Important safety notes ....................40
Knee bag .......................................... 42
PASSENGER AIRBAG OFF
indicator lamp .................................. 44
Pelvis air bag ................................... 43
Safety guidelines ............................. 39
Side impact air bag ..........................42
Window curtain air bag ....................44
Air-conditioning system
see Climate control
Air filter (display message) .............. 248
AIRMATIC Display message ............................ 249
Function/notes ............................. 189
Air pressure
see Tire pressure
Air vents
Glove box ....................................... 141
Important safety notes ..................140
Rear ............................................... 141
Setting ........................................... 140
Setting the center air vents ...........141
Setting the side air vents ...............141
Alarm system
see ATA (Anti-Theft Alarm system)
Alertness Assistant
see ATTENTION ASSIST
Ambient lighting (on-board
computer) .......................................... 227
AMG adaptive sport suspension
system ................................................ 190
AMG menu (on-board computer) ..... 230
Anti-lock Braking System see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Anti-theft system
ATA (Anti-Theft Alarm system) .........72
Ashtray ............................................... 292
Assistance menu (on-board
computer) .......................................... 224
ASSYST PLUS see ASSYST PLUS service interval
display 4Index

C
California Important notice for retail
customers and lessees ....................23
Calling up a malfunction
see Display messages
Capacities
see Technical data
Car
see Vehicle
Care
Carpets .......................................... 320
Car wash ........................................ 314
Display ........................................... 318
Exterior lights ................................ 317
Gear or selector lever ....................319
Matte finish ................................... 316
Night View Assist Plus ...................318
Notes ............................................. 313
Paint .............................................. 316
Plastic trim .................................... 319
Power washer ................................ 315
Rear view camera .......................... 318
Roof lining ...................................... 320
Seat belt ........................................ 320
Seat cover ..................................... 320
Sensors ......................................... 317
Steering wheel ............................... 319
Tail pipes ....................................... 318
Trim pieces .................................... 319
Washing by hand ........................... 315
Wheels ........................................... 315
Windows ........................................ 317
Wiper blades .................................. 317
Wooden trim .................................. 319
Cargo compartment cover ............... 282
Cargo compartment enlargement ... 280
Cargo compartment floor ................. 286
Cargo net ........................................... 284
Attaching ....................................... 284
Cargo tie down rings ......................... 281
Car wash (care) ................................. 314
CD player/CD changer (on-board
computer) .......................................... 222
Cell phone see Mobile phone Center console
Lower section .................................. 33
Lower section (AMG vehicles) ..........34
Upper section .................................. 32
Central locking
Automatic locking (on-board
computer) ...................................... 228
Locking/unlocking (SmartKey) ........74
Changing bulbs
High-beam headlamps ...................123
Important safety notes ..................121
Infrared lamp ................................. 123
Low-beam headlamps ....................122
Overview of bulb types ..................122
Parking lamps ................................ 123
Standing lamps (front) ...................123
Turn signals (front) ......................... 124
Child-proof locks
Important safety notes ....................61
Rear doors ....................................... 61
Children
In the vehicle ................................... 56
Restraint systems ............................ 56
Child seat
LATCH-type (ISOFIX) child seat
anchors ............................................ 59
Special seat belt retractor ...............59
Top Tether ....................................... 60
Cigarette lighter ................................ 293
Climate control Automatic climate control (3-
zone) .............................................. 133
Controlling automatically ...............135
Cooling with air dehumidification ..134
Defrosting the windows .................138
Defrosting the windshield ..............138
Dual-zone automatic climate
control ........................................... 131
Important safety notes ..................130
Indicator lamp ................................ 135
Maximum cooling .......................... 138
Notes on using automatic climate
control ................................... 132, 134
Overview of systems ......................130
Problems with cooling with air
dehumidification ............................ 135
Problem with the rear window
defroster ........................................ 1396Index

Rear control panel .........................133
Refrigerant ..................................... 388
Setting the air distribution .............137
Setting the airflow .........................137
Setting the air vents ......................140
Setting the climate mode ............... 136
Setting the temperature ................136
Switching air-recirculation mode
on/off ............................................ 139
Switching on/off ........................... 134
Switching residual heat on/off ......140
Switching the rear window
heating on/off ............................... 139
Switching the ZONE function on/
off .................................................. 137
Coat hooks ......................................... 284
Cockpit Overview .......................................... 28
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 332
see Emergency spare wheel
COMAND
see separate operating instructions
Combination switch .......................... 117
Combined cargo cover and net ........ 283
Compass Calibrating ..................................... 306
Calling up ....................................... 305
Setting ........................................... 305
Consumption statistics (on-board
computer) .......................................... 219
Convenience closing feature .............. 91
Convenience opening feature ............ 91
Coolant (engine) Checking the level .........................311
Display message ............................ 245
Notes ............................................. 389
Temperature (on-board computer) . 230
Temperature gauge ........................ 214
Warning lamp ................................. 268
Cooling
see Climate control
Cornering light function
Display message ............................ 242
Function/notes ............................. 118
Crash-responsive emergency
lighting ............................................... 121Cruise control
Cruise control lever .......................176
Deactivating ................................... 177
Display message ............................ 254
Driving system ............................... 175
Function/notes ............................. 175
Important safety notes ..................175
LIM indicator lamp .........................176
Setting a speed .............................. 176
Storing and maintaining current
speed ............................................. 176
Cup holder
Center console .............................. 289
Important safety notes ..................289
Rear compartment .........................290
Customer Assistance Center (CAC) ... 25
Customer Relations Department ....... 25
D
Dashboard see Cockpit
Data
see Technical data
Daytime running lamp mode
see Daytime running lamps
Daytime running lamps
Display message ............................ 244
Switching on/off (on-board
computer) ...................................... 227
Switching on/off (switch) ..............115
DEF
Adding ........................................... 165
Display message ............................ 248
Delayed switch-off
Exterior lighting (on-board
computer) ...................................... 227
Interior lighting .............................. 228
Diesel particle filter .......................... 171
Digital speedometer ......................... 219
DIRECT SELECT lever see Automatic transmission
Display (cleaning instructions) ........ 318
Display messages Calling up (on-board computer) .....234
Driving systems ............................. 249
Engine ............................................ 245
General notes ................................ 234
Index7

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops ( Y page 25).
Overview of climate control systems
Important safety notes
GWARNING
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled replacement interval. A clogged
filter will reduce the air volume to the interior
and the windows could fog up, impairing
visibility and endangering you and others.
Have a blocked filter replaced at a Mercedes-
Benz Center as soon as possible.
GWARNING
Follow the recommended settings for heating
and cooling given on the following pages.
Otherwise, the windows could fog up,
impairing visibility and endangering you and
others.
The automatic climate control adjusts the
temperature and the humidity of the vehicle
interior and filters undesired substances from
the air.
The automatic climate control is only
operational when the engine is running. 15
Optimum operation is only achieved if you
drive with the side windows and sliding
sunroof/panorama roof with power tilt/
sliding panel closed.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature ( Y page 91).
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. 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 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
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.15 Automatic climate control: the residual heat function can only be activated/deactivated when the ignition
is switched off.130Overview of climate control systemsClimate control

Control panel for dual-zone automatic climate control
Canada only
:To activate/deactivate air-recirculation mode (Y page 139);To defrost the windshield ( Y page 138)=To switch the ZONE function on/off ( Y page 137)?DisplayATo set climate control to automatic ( Y page 135)BTo activate/deactivate cooling with air dehumidification ( Y page 134)CTo switch the rear window defroster on/off ( Y page 139)DTo switch climate control on/off ( Y page 134)ETo set the temperature, right ( Y page 136)FTo set the air distribution ( Y page 137)GTo set the airflow ( Y page 137)HTo set the temperature, left ( Y page 136)
USA only
:To set climate control to automatic ( Y page 135);To defrost the windshield ( Y page 138)=To switch the ZONE function on/off ( Y page 137)?To activate/deactivate air-recirculation mode ( Y page 139)ATo switch maximum cooling MAX COOL on/off ( Y page 138)BTo activate/deactivate cooling with air dehumidification ( Y page 134)Overview of climate control systems131Climate controlZ

Control panel for 3-zone automatic climate control
Canada only
Front control panel:To set climate control to automatic (Y page 135);To defrost the windshield ( Y page 138)=To switch the ZONE function on/off ( Y page 137)?DisplayATo activate/deactivate air-recirculation mode ( Y page 139)BTo activate/deactivate the residual heat function ( Y page 140)CTo activate/deactivate cooling with air dehumidification ( Y page 134)DTo switch the rear window defroster on/off ( Y page 139)ETo switch climate control on/off ( Y page 134)FTo set the temperature, right ( Y page 136)GTo set climate control to automatic (FOCUS/MEDIUM/DIFFUSE) ( Y page 135)HTo set the airflow ( Y page 137)ITo set the air distribution ( Y page 137)JTo set the temperature, left ( Y page 136) Rear control panelKTo increase the temperature ( Y page 136)LDisplayMTo increase the airflow ( Y page 137)Overview of climate control systems133Climate controlZ

NTo reduce the airflow (Y page 137)OTo reduce the temperature ( Y page 136)Notes on using 3-zone automatic
climate control
The following contains instructions and
recommendations to enable you to get the
most out of your automatic climate control.
R Activate climate control using the à and
¿ buttons. The indicator lamps above
the à and ¿ buttons light up. You
can also set the airflow and air distribution
of the automatic climate control to one of
three levels (FOCUS/MEDIUM/DIFFUSE).
You can set the desired level using button
G . The MEDIUM level is recommended.
R Set the temperature to 72 ‡ (22 †).
R Only use the "defrosting" function briefly
until the windshield is clear again.
R Only use "air-recirculation" mode briefly,
e.g. if there are unpleasant outside odors
or when in a tunnel. The windows could
otherwise fog up as, in air-recirculation
mode, no fresh air is drawn into the vehicle.
R Use the ZONE function to adopt the
temperature settings on the driver's side
for the front-passenger side and the rear
compartment as well. The indicator lamp
above the á button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior
when the ignition is switched off. The
"residual heat" function can only be
activated or deactivated with the ignition
switched off.Operating the climate control system
Activating/deactivating climate
control
Important information
GWARNING
When the climate control system is
deactivated, the outside air supply and
circulation are also deactivated. Only choose
this setting for a short time. Otherwise the
windows could fog up, impairing visibility and
endangering you and others.
i Switch on climate control primarily using
the à button ( Y page 135).
Activating/deactivating
XTurn the SmartKey to position 2 in the
ignition lock.XTo switch on: press the à button.
The indicator lamp above the à button
lights up. Airflow and air distribution are set
to automatic mode.
or
XPress the ^ button.
The indicator lamp above the ^ button
goes out. The previously selected settings
come into effect again.XTo switch off: press the ^ button.
The indicator lamp above the ^ button
lights up.
Activating/deactivating cooling with
the air dehumidification function
Important information
The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and
134Operating the climate control systemClimate control

dehumidified according to the temperature
selected.GWARNING
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.
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
XTo activate: press the ¿ button.
The indicator lamp above the ¿ button
lights up.XTo 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
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.
XConsult a qualified specialist workshop.
Setting climate control to automatic
GWARNING
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.XTurn the SmartKey to position 2 in the
ignition lock.XSet the desired temperature.XTo 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 136).
XTo deactivate: press the air distribution
button.
Dual-zone automatic climate control: press
button F(Y page 131).
3-zone automatic climate control: press
button I(Y page 133).
The indicator lamp above the à button
goes out.
or
XPress the airflow button.
Dual-zone automatic climate control: press
button G(Y page 131).
3-zone automatic climate control: press
button H(Y page 133).
The indicator lamp above the à button
goes out.Operating the climate control system135Climate controlZ

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.
i You should only select the defrosting
function until the windshield is clear again.
XTurn the SmartKey to position 2 in the
ignition lock.XTo activate: press the ¬ button.
The indicator lamp above the ¬ button
lights up.
The climate control system switches to the
following functions:
R cooling with air dehumidification on
R high airflow 18
R high temperature 18
R air distribution to the windshield and
front side windows
R air-recirculation mode offXTo switch off: press the ¬ button.
The indicator lamp above the ¬ button
goes out. The previously selected settings
come into effect again. The cooling with air
dehumidification function remains on. Air-
recirculation mode remains deactivated.
or
XPress the à button.
The indicator lamp above the ¬ button
goes out. Airflow and air distribution are set
to automatic mode.
or
XAutomatic climate control: press
temperature button E or H up or down
( Y page 131).
Automatic climate control: press
temperature button F or J up or down
( Y page 133).orXDual-zone automatic climate control:
press switch G up or down ( Y page 131).
3-zone automatic climate control: press
button H up or down ( Y page 133).
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.
When you activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on
XTo activate: press the Ù button.
The indicator lamp above the button lights
up.XTo deactivate: press the Ù button
again.
The indicator lamp goes out. The previously
selected settings come into effect again.
Defrosting the windows
Windows fogged up on the inside
XActivate the cooling with air
dehumidification function ¿.XActivate automatic mode Ã.XIf the windows continue to fog up, activate
the defrosting function ( Y page 138).
i
You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside
XSwitch on the windshield wipers.XAutomatic climate control: press switch
F up or down ( Y page 131) until the18
Depending on the outside temperature.138Operating the climate control systemClimate control

iAir-recirculation mode deactivates
automatically:
R after approximately five minutes if
outside temperatures are less than about
41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes if outside
temperatures are over about
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
the engine has been switched off. The heating
time depends on the temperature that has
been set.
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.
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.
XTurn the SmartKey to position 0 in the
ignition lock or remove it.XTo activate: press the Ì button.
The indicator lamp above the Ì button
lights up.XTo switch off: press the Ì button.
The indicator lamp above the Ì button
goes out.i Residual heat is deactivated
automatically:
R after about 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R if the coolant temperature is too low
Setting the air vents
Important safety notes
GWARNING
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature). This
could cause burns or frostbite to unprotected
skin in the immediate area of the air vents.
Always keep sufficient distance between
unprotected parts of the body and the air
vents. If necessary, use the air distribution
adjustment to direct the air to air vents in the
vehicle interior that are not in the immediate
area of unprotected skin.
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 grille
in the vehicle interior.
i For virtually draft-free ventilation, adjust
the sliders of the air vents to the center
position.
140Setting the air ventsClimate control