
1, 2, 3 ...
115 V socket ...................................... 321
12 V socket see Sockets
360° camera
Cleaning .........................................3 46
Function/notes ............................. 220
4ETS
see ETS/4ETS (Electronic
Traction System)
4MATIC (permanent four-wheel
drive) .................................................. 208A
ABS (Anti-lock Braking System) Display message ............................ 258
Function/notes ................................ 67
Important safety notes ....................67
Warning lamp ................................. 288
Activating/deactivating cooling
with air dehumidification .................149
Active Blind Spot Assist Activating/deactivating (on-
board computer) ............................ 248
Display message ............................ 276
Function/informatio n.................... 230
Active Driving Assistance package .230
Active Lane Keeping Assist Activating/deactivating (on-
board computer) ............................ 248
Display message ............................ 275
Function/informatio n.................... 233
Active light function .........................133
Active multicontour seat Adjusting (on the seat) ..................113
Active Parking Assist
Detecting parking spaces ..............213
Display message ............................ 276
Exiting a parking space ..................215
Function/notes ............................. 212
Important safety notes ..................212
Parking .......................................... 214
ADAPTIVE BRAKE ................................. 75
Adaptive Brake Assist Function/notes ................................ 71
Adaptive Damping System (ADS) ..... 205Adaptive Highbeam Assist
Display message ............................ 269
Function/notes ............................. 133
Switching on/off ........................... 134
Additives (engine oil) ........................422
Air bags Display message ............................ 265
Front air bag (driver, front
passenger) ....................................... 44
Important safety notes ....................42
Knee bag .......................................... 45
PASSENGER AIR BAG OFF
indicator lamp .................................. 48
Pelvis air bag ................................... 46
Safety guidelines ............................. 41
Side impact air bag ..........................45
Window curtain air bag ....................47
Air-conditioning system
see Climate control
Air filter (display message) ..............272
AIRMATIC Display message ............................ 273
Function/notes ............................. 204
Air vents
Glove box ...................................... .156
Important safety notes ..................155
Rear ............................................... 156
Setting ........................................... 155
Setting the center air vents ...........155
Setting the side air vents ...............155
Alarm system
see ATA (Anti-Theft Alarm system)
Ambient lighting
Setting the brightness (on-board
computer) ...................................... 250
Setting the color (on-board
computer) ...................................... 250
AMG adaptive sport suspension
system ................................................ 206
Anti-lock braking system see ABS (Anti-lock Braking System)
Anti-theft alarm system
see ATA (Anti-Theft Alarm system)
Ashtray ............................................... 318
Assistance display (on-board
computer) .......................................... 2464
IndexProCarManuals.com

Child seat
LATCH-type (ISOFIX) child seat
anchors ............................................ 63
Top Tether ....................................... 64
Cigarette lighter ................................ 319
Cleaning Mirror turn signal ........................... 345
Climate control
Automatic climate control (3-zone) 147
Controlling automatically ...............150
Cooling with air dehumidification ..149
Defrosting the windows .................153
Defrosting the windshield ..............152
Dual-zone automatic climate
control ........................................... 145
Important safety notes ..................144
Indicator lamp ................................ 150
Information about using dual-zone
automatic climate control ..............146
Information on using dual-zone
automatic climate control ..............148
Maximum cooling .......................... 153
Overview of systems ......................144
Problems with cooling with air
dehumidification ............................ 150
Problem with the rear window
defroster ........................................ 154
Rear control panel .........................147
Refrigerant ..................................... 425
Refrigerant filling capacity .............425
Setting the air distribution .............151
Setting the airflow .........................152
Setting the air vents ......................155
Setting the climate mode .............. .150
Setting the temperature ................151
Setting the temperature with 3-
zone automatic climate control .....151
Setting the temperature with dual-
zone automatic climate control .....151
Switching air-recirculation mode
on/off ............................................ 154
Switching on/off ........................... 148
Switching residual heat on/off ......154
Switching the rear window
defroster on/off ............................ 153
Switching the ZONE function on/
off .................................................. 152
Coat hooks ......................................... 309Cockpit
Overview .......................................... 30
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 412
see Emergency spare wheel
COLLISION PREVENTION ASSIST
Activating/deactivating the
distance warning function .............. 247
Display message ............................ 261
Operation/notes .............................. 70
COMAND
see separate operating instructions
COMAND display
Cleaning ......................................... 347
Combination switch ..........................131
Combined cargo cover and net ........308
Consumption statistics (on-board
computer) .......................................... 241
Convenience box ............................... 309
Convenience closing feature ..............99
Convenience opening feature ............99
Coolant (engine) Checking the level .........................339
Display message ............................ 269
Filling capacity ............................... 424
Important safety notes ..................423
Temperature (on-board computer) .253
Temperature gauge ........................ 238
Warning lamp ................................. 293
Cooling
see Climate control
Copyright ............................................. 28
Cornering light function Display message ............................ 266
Function/notes ............................. 133
Crash-responsive emergency
lighting ............................................... 136
Cruise control Activation conditions .....................190
Cruise control lever .......................190
Deactivating ................................... 191
Display message ............................ 279
Driving system ............................... 189
Function/notes ............................. 189
Important safety notes ..................189 Index
7ProCarManuals.com

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 Read the information on qualified
specialist workshops: (Y page 26).Overview of climate control systems
Important safety notes
Observe the settings recommended on the
following pages. The windows could
otherwise fog up.
To prevent the windows from fogging up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air
dehumidification function
R switch on the defrost windshield 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 can only be operated when
the engine is running. Optimum operation is
only achieved with the side windows and roof
closed.
The residual heat function can only be
activated or deactivated with the ignition
switched off (Y page 154).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature (Y page 99).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly. i
The integrated filter filters out most
particles of dust and soot and completely
filters out pollen. It also reduces gaseous
pollutants and odors. 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
Maintenance Booklet. As it depends on
environmental conditions, e.g. heavy air
pollution, the interval may be shorter than
stated in the Maintenance 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 automatic climate control. 144
Overview of climate control systemsClimate control
ProCarManuals.com

Control panel for dual-zone automatic climate control
Canada only
:
Activates/deactivates air-recirculation mode (Y page 154)
; Defrosts the windshield (Y page 152)
= Switches the ZONE function on/off (Y page 152)
? Display
A Sets climate control to automatic (Y page 150)
B Switches cooling with air dehumidification on/off ( Ypage 149)
C Switches the rear window defroster on/off (Y page 153)
D Switches climate control on/off (Y page 148)
E Sets the temperature, right (Y page 151)
F Sets the air distribution (Y page 151)
G Sets the airflow (Y page 152)
H Sets the temperature, left (Y page 151)USA only
:
Sets climate control to automatic (Y page 150)
; Defrosts the windshield (Y page 152)
= Switches the ZONE function on/off (Y page 152)
? Activates/deactivates air-recirculation mode (Y page 154)
A Switches maximum cooling on/off (Y page 153)
B Switches cooling with air dehumidification on/off ( Ypage 149) Overview of climate control systems
145Climate control
ProCarManuals.com

Control panel for 3-zone automatic climate control
Canada only
Front control panel
: To set climate control to automatic (Y page 150)
; To defrost the windshield (Y page 152)
= To switch the ZONE function on/off (Y page 152)
? Display
A To activate/deactivate air-recirculation mode (Y page 154)
B To switch the residual heat function on/off (Y page 154)
C To switch cooling with air dehumidification on/off (Y page 149)
D To switch the rear window defroster on/off (Y page 153)
E To switch climate control on/off (Y page 148)
F To set the temperature, right (Y page 151)
G To adjust the climate mode settings (Y page 150)
H To set the airflow ( Ypage 152)
I To set the air distribution (Y page 151)
J To set the temperature, left (Y page 151)
Rear control panel
K To increase the temperature (Y page 151)
L Display
M To increase the airflow (Y page 152) Overview of climate control systems
147Climate control
ProCarManuals.com

Activating/deactivating
X
Turn the SmartKey to position 2in the
ignition lock (Y page 159).
X To switch on: press theÃbutton on
the control panel for the climate control.
The indicator lamp above the Ãbutton
lights up. Airflow and air distribution are set
to automatic mode.
or
X Press the ^button.
The indicator lamp above the ^button
goes out. The previously selected settings
are restored.
X To switch off: press the^button.
The indicator lamp above the ^button
lights up. 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 fog 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 it is in cooling mode. This is
normal and not a sign that there is a
malfunction. Activating/deactivating X
To activate: press the¿button.
The indicator lamp above the ¿button
lights up.
i When the "Cooling with air
dehumidification" function is activated,
one of the indicator lamps on the auxiliary
heating button will light up on vehicles with
auxiliary heating.
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. Operating the climate control systems
149Climate control
ProCarManuals.com

Problems with the "Cooling with air dehumidification" function
Problem Possible causes/consequences and
M
MSolutions The indicator lamp in
the
¿ 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 159).
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lamp above the Ãbutton
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 150).
X To switch to manual mode: Dual-zone automatic climate control: press
air distribution adjustment button
F(Y
page 145).
3-zone automatic climate control: press air
distribution adjustment button
I(Y page 147).
The indicator lamp above the Ãbutton
goes out.
or
X Dual-zone automatic climate control: press
airflow adjustment button G(Ypage 145).
3-zone automatic climate control: press
airflow adjustment button H(Ypage 147).
The indicator lamp above the Ãbutton
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 150
Operating the climate control systemsClimate control
ProCarManuals.com

are restored. Air-recirculation mode
remains deactivated.
or
X Press the Ãbutton.
The indicator lamp above the ¬button
goes out. Airflow and air distribution are set
to automatic mode.
or
X Dual-zone automatic climate control: press
temperature selection switch EorH up
or down (Y page 145).
3-zone automatic climate control: press
temperature selection switch ForJ up
or down (Y page 147).
or
X Dual-zone automatic climate control: press
airflow switch Gup or down
(Y page 145).
3-zone automatic climate control: press
airflow switch Hup or down
(Y page 147). 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 theÙbutton.
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 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 ¬ "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 adjustment button Fup or
down (Y page 145), until the Por
O symbol appears in the display.
X 3-zone automatic climate control: press air
distribution adjustment button Iup or
down (Y page 147), until the Por
O symbol appears in the display.
X Adjust the side air vents so 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 159).
X Press the ¤button.
The indicator lamp above the ¤button
lights up or goes out. Operating the climate control systems
153Climate control
ProCarManuals.com