ECO start/stop function
During automatic engine switch-off,the climate
control system only operate satareduced capa-
city. If you require full climate control capacity,
th eE CO start/sto pfunction can be deactivated
by pressingt heECO button (
Ypage 119).
Operating th eclimat econtrol sys-
tems
Activating/deactivatin gclimat econ-
trol
General notes
When th eclimate control is switched off ,the air
supply and air circulation are also switched off.
The windows coul dfog up. Therefore, switch off
climate control only briefly
iActivate climate control primarily usingt he
à button(Ypage 108).
Air-conditioning system
XTurn th eSma rtKey to position 2in th eignition
lock(Ypage 115).
XTo switch on: turna irflow control Cclock-
wise to th edesired position (excep tposition
0)(
Ypage 103).
XTo switch off: turna irflow control Ccoun-
ter-clockwise to position 0(Ypage 103).
3-zone automatic climat econtrol
XTurn th eSma rtKey to position 2in th eignition
lock(Ypage 115).
XTo switch on: pressthe à button.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto-
matic mode.
or
XPress the ^button.
The indicator lamp in the ^button goes
out.T he previously selecte dsettings are
restored.
XTo switch off: pressthe ^ button.
The indicator lamp in the ^button lights
up.
Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate th e"Coolingw ith air-dehumid-
ification" function,t heair inside th evehicle will
no tbec ooled. The air inside th evehicle will also
no tbed ehumidified. The windows can fog up
mor equickly. Therefore, deactivate th ecooling
with air-dehumidification function only briefly.
The "Coolingw ith air dehumidification"f unction
is only availabl ewhen th eengine is running. The
air inside th evehicle is cooled and dehumidified
according to th etem peratur eselected.
Condensation may drip from th eundersid eof
th ev ehicle when it is in cooling mode. This is
normal and no tasign that there is amalfunc-
tion.
Activating/deactivating
XTo activate: pressthe ¿ orÁ button.
The indicator lamp in the ¿orÁ button
lightsu p.
XTo deactivate: pressthe ¿ orÁ but-
ton.
The indicator lamp in the ¿orÁ button
goes out.T he "Coolingw ith air dehumidifica-
tion" function has adelayed switch-off fea-
ture.
Operating th eclimate control systems107
Climate control
Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andMSolutions
The indicator lamp in the
¿orÁ button
flashes three times or
remains off. The "Cool-
ing with air dehumidifi-
cation" function cannot
be switched on.Cooling with air dehumidification has been deactivated due to amal-
function.
XVisit aqualified specialist workshop.
Setting climate control to automatic
General notes
Automatic mode is only available with dual-zone
automatic air conditioning.
In automatic mode, the set temperature is main-
tained automatically at aconstant level. The
system automatically regulates the temperature
of the dispensed air, the airflow and the air dis-
tribution.
The automatic mode functions optimally when
the "Cooling with air dehumidification" function
is activated. If necessary, cooling with air dehu-
midification can be deactivated.
If you deactivate the "Cooling with air-dehumid- ification" function, the air inside the vehicle will
not be cooled. The air inside the vehicle will also
not be dehumidified.T he windows can fog up
more quickly. Therefore, deactivate the cooling
with air-dehumidification function only briefly.
Automatic control
XTurn the SmartKey to position 2in the ignition
lock (Ypage 115).
XSet the desired temperature.
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow are
activated.
XTo switch to manualm ode:press the _
button.
or
XPress the IorK button.
The indicator lamp in the Ãbutton goes
out.
Setting the temperature
Air-conditioning system
XTurn the SmartKey to position 2in the ignition
lock (Ypage 115).
XTo increase or reduce: turn control:
clockwise or counter-clockwise (Ypage 103).
Only change the temperature settingins mall
increments. Start at 72 ‡(22 †).
iIf you turn control :counter-clockwise to
the lowest temperature setting, air-recircula-
tion mode may activate automatically,
depending on the outside temperature.
3-zone automatic climate control
Differentt emperatures can be set for the driv-
er's and front-passenger sides.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 115).
XTo increase or decrease: turn control:or
B clockwise or counter-clockwise
(
Ypage 105).
Only change the temperature settingins mall
increments. Start at 72 ‡(22 †).
iIf you turn controls :and Bcounter-
clockwise to the lowest temperature setting,
air-recirculation mode may activate automat-
ically, depending on the outside temperature.
108Operating the climate control systems
Climatec ontrol
The climate control system switches to the
following functions:
Rhigh airflow
Rhigh temperature
Rair distribution to the windshield and front
side windows
Rair-recirculation mode off
XTo switch off:press the¬button.
The indicator lamp in the ¬button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
X3-zone automatic climate control: press the
à button.
The indicator lamp in the ¬button goes
out. Airflow and air distribution are set to
automatic mode.
MAX COOL maximum cooling
The MAX COOL function is only availableinv ehi-
cles for the USA.
MAX COOL is only operational when the engine
is running.
XTo activate: press theÙbutton.
The indicator lamp in the button lights up.
XTo deactivate: press theÙbutton.
The indicator lamp in the button goes out. The
previously selected settings are restored.
When you activate MAX COOL, climate control
switches to the following functions:
Rmaximum cooling
Rmaximum airflow
Rair-recirculation mode on
Defrosting the windows
Windows fogged up on the inside
XActivate the ¿orÁ cooling with air
dehumidification function.
XDual-zon eautomatic air conditioning: acti-
vate the Ãmode button.
XIf the windows continue to fog up, activate the
¬ "Windshield defrosting" function.
iYou should only select this setting until the
windshield is clear again.
Windows fogged up on the outside
XActivate the windshield wipers.
XAir-conditioning system: press the Por
O button.
XDual-zon eautomatic air conditioning: press
the _ button until the PorO sym-
bol appears in the display.
iYou should only select this setting until the
windshield is clear again.
Rear window defroster
General notes
The rear window defroster has ahigh current
draw. You should therefor eswitch 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
XTurn the SmartKey to position 2in the ignition
lock (Ypage 115).
XPress the ¤button.
The indicator lamp in the ¤button lights
up or goes out.
110Operating the climate control systems
Climate control
Problems with the rear window defroster
ProblemPossible causes/consequences andMSolutions
The indicator lamp on
the¤ button flashes.
The rear window
defroster has deactiva-
ted prematurely or can-
not be activated.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch 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.
The roof is open.
XClose the roof.
When the roof is closed, the rear window defroster can be activated
again.
Switching air-recirculation mode
on/off
General notes
If you switch on air-recirculation mode, the win-
dows can fog up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from fog-
ging up.
Switching on/off
XTurn the SmartKey to position 2in the ignition
lock (Ypage 115).
XTo switch on: press thegbutton.
The indicator lamp in the gbutton lights
up.
iAir-recirculation mode is automatically acti-
vated at high levels of pollution (dual-zone
automatic climate control only) or at high out-
side temperatures. When air-recirculation
mode is activated automatically, the indicator
lamp in the gbutton is not lit. Outside air
is added after about 30 minutes.
XTo switch off: press thegbutton.
The indicator lamp in the gbutton goes
out.
iAir-recirculation mode deactivates auto-
matically:
Rafter approximately five minutes at outside
temperatures below approximately 41 ‡
(5 †)
Rafter approximately five minutes if cooling
with air dehumidification is deactivated
Rafter approximately 30 minutes at outside
temperatures above approximately 41 ‡
(5 †) if the "Cooling with air dehumidifica-
tion" function is activated
Switching the residual heat on or off
General notes
The residual heat function is only available on
vehicles for Canada.
It is possible to make use of the residual heat of
the engine to continue heating the stationary
vehicle for up to 30 minutesafter the engine has
been switched off. The heating time depends on
the set interior temperature.
Activating/deactivating
XTurn the SmartKey to position 0in the ignition
lock or remove it (Ypage 115).
XTo activate: press theÌorÁ button.
The indicator lamp in the ÌorÁ button
lights up.
iThe blower will run at alow speed regardless
of the airflow setting.
Operating the climate control systems111
Climatec ontrol
brake system and prevents the brakes from
overheating and wearing too quickly.
Use cruise control only if road and traffic con-
ditionsmake it appropriate to maintain asteady
speed for aprolonged period. You can stor eany
road speed above 20 mph (30 km/h).
Important safetyn otes
If you fail to adapt your driving style, cruise con-
trol can neither reduce the risk of an accident
nor override the laws of physics. Cruise control
cannot take intoaccountt he road, traffic and
weather conditions. Cruise control is only an
aid. You are responsible for the distance to the
vehicle in front, for vehicle speed, for brakin gin
good time and for staying in lane.
Do not use cruise control:
Rin road and traffic condition swhich do not
allow you to maintain aconstan tspeed e.g. in
heavy traffic or on winding roads
Ron slippery road surfaces.B raking or accel-
eratin gcould cause the drive wheels to lose
traction and the vehicle could then skid
Rwhen ther eispoor visibility, e.g. due to fog,
heavy rain or snow
If ther eisac hangeofd rivers, advise the new
driver of the speed stored.
Cruise control lever
:Stores the currents peed orahigher speed
;Storing the currents peed or calling up the
last stored speed
=Stores the currents peed oralower speed
?Deactivatin gcruise control
When you activate cruise control, the stored
speed is shown in the multifunction display for
five seconds. The speed is then permanently
displayed in the status indicator together with
the ¯ symbol. On vehicles with
asegmentr ing in the speed-
ometer, the segments from the currently saved speed to the end of the segmentr ing light up.
Storing, maintaining and calling up a
speed
Storing and maintainingaspeed
XAcceleratet he vehicle to the desired speed.
XBriefly press the cruise control lever up :or
down ?.
XRemove your foot from the accelerator pedal.
Cruise control is activated. The vehicle auto-
matically maintains the stored speed.
You can stor ethe currents peed if you are driv-
ing faster than 20 mph (30 km/h).
iCruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient
evens out. Cruise control maintains the
stored speed on downhill gradient sbyauto-
matically applying the brakes.
Storing or calling up aspeed
GWARNING
If you call up the stored speed and it differs
from the currents peed, the vehicle acceler-
ates or decelerates. If you do not know the
stored speed, the vehicle could accelerateo r
brake unexpectedly. There is arisk of an acci-
dent.
Pay attention to the road and traffic condi-
tion sbefore calling up the stored speed. If you
do not know the stored speed, stor ethe
desired speed again.
XBriefly pull the cruise control lever towards
you =.
XRemove your foot from the accelerator pedal.
The first time cruise control is activated, it
stores the currents peed or regulates the
speed of the vehicle to the previously stored
speed.
Driving systems139
Driving and parking
Z
Under the following circumstances, the rear
view camera will not function, or will function in
alimited manner:
Rif the trunk lid is open
Rin heavy rain, snow or fog
Rat night or in very dark places
Rif the camera is exposed to very bright light
Rif the area is lit by fluorescent bulbsorL ED
lighting (the displaym ay flicker)
Rif there isasudden change in temperature,
e.g. when driving into aheated garage in win-
ter
Rif the camera lens is dirty or obstructed
Observe the notes on cleaning
(
Ypage 240)
Rif the rear of your vehicle is damaged. In this
event, have the camera position and setting
checked at aqualified specialist workshop
The field of vision and other functions of the rear
view camera may be restricted due to additional
accessories on the rear of the vehicle (e.g.
license plate holder, bicycle rack).
For technical reasons, leaving the standard
height can result in inaccuracies in the guide
lines on vehicles with aheight-adjustable chas-
sis.
iThe rear view camera is protected from rain-
drops and dust by means of aflap. When the
rear view camera is activated, this flap opens.
The flap closes againw hen:
Ryou have finished the maneuvering process
Ryou switch off the engine
Ryou open the trunk
Observe the notes on cleaning (
Ypage 240).
For technical reasons, the flap may remain
open briefly after the rear view camera has
been deactivated.
Activating/deactivating the rear view camera
XTo activate: make sure that the SmartKey is
in position 2in the ignition lock.
XMake sure that the Activation byRgearfunction is selected in the multimedia system;
see the Digital Operator's Manual.
XEngage reverse gear.
The rear view camera flap opens. The multi-
media system shows the area behind the vehi-
cle with guide lines. The image from the rear view camera is avail-
able throughout the maneuvering process.
To deactivate: the rear view camera deacti-
vates if you shift the transmission to Por after
driving forwards ashort distance.
Displays in the multimedia system
The rear view camera may show adistorted view
of obstacles, show them incorrectly or not at all.
The rear view camera does not show objects in
the following positions:
Rvery close to the rear bumper
Runder the rear bumper
Rin close range above the handle on the trunk
lid
!Objects not at ground level may appeart o
be further awayt han they actually are, e.g.:
Rthe bumper ofaparked vehicle
Rthe drawbarofat railer
Rthe ball coupling of atrailer tow hitch
Rthe rear section of an HGV
Ras lanted post
Use the guidelines only for orientation.
Approach objects no further than the bottom-
most guideline.
:Yellowg uide line at adistance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
;White guide line without turning the steering
wheel, vehicle width including the exterior
mirrors (static)
=Yellowg uide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic)
?Yellowl ane marking tires at current steering
wheel angle (dynamic)
Driving systems155
Driving and parking
Z