RIf you wish to use the driver's side settings on
the front-passenger side and, for vehicles
with rear-compartment air conditioning, for
the rear compartment as well,use the "Syn-
chronization" function. The indicator lamp in
the 0 button comes on when the function
is switched on.
RAfter long journeys, you can use the residual
heat of the engine to heat the stationary vehi-
cle. The residual heat function can only be
switched on or off whilet he ignition is
switched off. The indicator lamp in the Ì
button comes on when the function is
switched on.
Approximatel y60minutes after parking the
vehicle,a utomatic climate control can switch on
automatically ,depending on the outsid etem-
perature. The vehicle is then ventilated for about
30 minutes at low fan setting and the automatic
climate control system is dried out.
During automatic engine switch-off, the climate control system only operates at areduced capa-
city. Further information on the automatic
engine switch-off can be found under "ECO
start/stop function" (
Ypage 122).
Information on rear-compartment air
conditioning
Vehicles with TEMPMATIC air-conditioning
system
Switch the rear-compartment air-conditioning
system on and off using the TEMPMATIC air-
conditioning system control panel. When you
switch on the rear-compartment heating, the
settings for temperature ,airflow and air distri-
bution are automatically adopted on the control
panel for the rear-compartment heating.
The indicator lamp in the /button comes on
when the rear-compartment air-conditioning is
switched on (
Ypage 108).
Vehicles with automatic climate control
To operate the rear-compartment air condition-
ing, use the control panel of the automatic cli-
mate control system. When you switch on the
rear-compartment air conditioning, you can set
the temperature and airflow separately on the
control panel .The airflow setting is automati-
cally adopted for the rear-compartment air con-
ditioning. When automatic climate control is in
à automatic mode, the air distribution of the
rear-compartment air conditioning is also auto-
matically adjusted. When you set the temperature and airflow of the
rear-compartment air conditioning, the indica-
tor lamp of the
/button (
Ypage 109)
flashes. When the rear-compartment air condi-
tioning is switched on, the indicator lamp on
the / button lights up.
For optimum climate control, set the tempera-
ture to 72 ‡(22 †) and switch on Ãauto-
matic mode. Only change the temperature in
small increments.
Operating the climate control system
Switching the climate control on/off
Important safety notes
When the climate control is switched off, air
intake and air circulation also stop. Only use this
setting for abrief period.O therwise,the win-
dows could fog up.
Air-conditioning system
XTurn the key to position 2in the ignition lock.
XTo switch on: turn airflow control Aclock-
wise to at least level 1–(Ypage 108).
XTo switch off: turn airflow control Acoun-
ter-clockwise to position 0.
Automatic climate control
XTurn the key to position2in the ignition lock.
XTo switch on: press theÃbutton.
The indicator lamp in the Ãbutton and the
display are switched on. The climate control is
automatically adjusted depending on the set
temperature (
Ypage 112).
or
XPress the Kbutton and set blower setting
1ora bove.
The blower settings are shown in the display
as ab ar graph.
XTo switch off: press theIbutton and,
after reaching the lowest blower speed,p ress
it again.
The control panel display goes off.
Preferably switch on climate control using the
à button.
110Operating the climatec ontrol system
Climate control
Clearing condensation from thewin-
dows
Windows fogged up on th einside
Air-conditioning system
You should only selectt hiss ettin guntil th ewin-
dows are clear again.
XSwitch on th erear window defroste rifnec-
essary (Ypage 115).
XSwitch on climate control (Ypage 110).
XSwitch off air-recirculation mode
(Ypage 115).
XTurn temperatur econtrol :clockwise to a
higher temperatur eand air flow control Ato
ab lower speedb etween3and 6
(
Ypage 108).
XIf possible, only selectt he¯ settingofthe
air distribution (Ypage 113).
Only th eindicator lamp in the ¯button
lightsu p.
XSwitch on th ecoolingw ithair dehumidifica-
tio nfunction (Ypage 111).
XIf th ewindows still fog up, set th eclimate
control functionsasd escribedfor defrosting
of th ewindshield (
Ypage 114).
Automatic climat econtrol
You should only selectt hiss ettin guntil th ewin-
dows are clear again.
XSwitch on th erear window defroste rifnec-
essary (Ypage 115).
XSwitch on climate control (Ypage 110).
XSwitch off air-recirculation mode
(Ypage 115).
XSwitch on th ecoolingw ithair dehumidifica-
tio nfunction (Ypage 111).
XSwitch on automatic mod e(Ypage 112).
XIf thewindows continue to fog up, switch on
th ew indshield defrostin gfunction
(
Ypage 114).
Windows fogged up on th eoutside
You should only selectt hiss ettin guntil the
windshield is clear again.
XSwitch on th ewindshield wipers
(Ypage 101).
XSwitch on climate control (Ypage 110).
XIn warm and damp weather,don otallow cold
air to flow onto th ewindows. Close th eside
air vents if required (
Ypage 116).
Switching th erearw indow defroster
on/off
General notes
The rear window defroste rconsume salot of
power.Y ou should therefor eswitch off th erear
window defroste rassoon as th erear window is
clear.
XTurn th ekeyto position 2in th eignition lock.
XPress the ¤buttonont hecontrol panel.
If th eindicator lamp in the ¤buttonlights
up, th erear window defroste risswitched on.
The rear window defroste rswitches off auto-
maticall yafter afew minutes.
Problemsw ith therearw indow
defroster
The rear window defroste rhas switched off pre-
maturely or canno tbeactivated.
The vehicle starter battery is no tsufficiently
charged.
XSwitch off any consumers that are not
required, e.g .reading lamps ,interiorl ighting
or seat heating.
When th ebattery is sufficiently charged, the
rear window defroste rcan be activated again.
Switching air-recirculation mode
on/off
Important safety notes
You can deactivate th eintake of fresh air if
unpleasanto dorsenterthev ehicle from out-
side. The air inside th evehicle will only be cir-
culated.
When you switch on air-recirculation mode, the
side windows and windows coul dfog up more
quickly, in particular at low outside tempera-
tures. Only switch on air-recirculation mod efor
as hort time.
Operatin gthe climatec ontrol system115
Climate control
sufficient distance to the side for other road
users and obstacles.
In particular, the detection of obstacles can be
impaired in the case of:
Rdirt on the sensors or anything else covering
the sensors
Rfog, heavy rain or snow
Rnarrow vehicles, e.g. motorcycles or bicycles
Rvery wide lanes
Rnarrow lanes
Rvehicles not driving in the middle of their lane
Rbarriers or other road boundaries
Vehicles in the monitoring range are then not
indicated.
iUSA only:
This device has been approved by the FCC as
a" Vehicular Rada rSystem". The radar sensor
is intended for use in an automotive radar
system only. Removal, tampering, or altering
of the device will void any warranties, and is
not permitted by the FCC. Do not tamper with,
alter, or use in any non-approved way.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
Monitoring range of the sensors
Blind Spot Assist monitors the area shown in the
diagramupt o118 in (3 m) behind and directly
next to your vehicle.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may be indicated, especially if the vehicles are not driv-
ing in the middle of their lane. This may be the
case if the vehicles are driving on the inner side
of their lane.
Due to the nature of the system:
Rwarnings may be issued in error when driving
close to crash barriers or similars olid lane
borders.
Rwarnings may be interrupted when driving
alongside long vehicles, for example trucks,
for aprolonged time
The two sensors for Blind Spot Assist are inte-
grated into the sides of the rear bumper. Make
sure that the bumper is free of dirt, ice or slush
in the vicinity of the sensors. The radar sensors
must not be covered, for example by rear-moun-
ted cycle racks or overhanging loads. Following
as evere impact or in the event of damage to the
bumper, have the function of the radar sensors
checked at aqualified specialist workshop.
Blind Spot Assist may otherwise not work prop-
erly.
Warning display
Blind Spot Assist is not active at speeds below
approximately 20 mph (30 km/h). Vehicles in
the monitoring range are then not indicated.
If av ehicle is detected within the monitoring
range of Blind Spot Assist at speeds above
approximately 20 mph (30 km/h), warning
lamp :lights up red in the exterior mirror on
the corresponding side. Warning lamp :
always lights up when avehicle enters the blind
spot monitoring range from behind or from the
side. When you overtake avehicle, the warning
only occurs if the difference in speed is less than
7m ph (11 km/h).
If you select reverse gear, Blind Spot Assist is
inactive.
146Driving systems
Driving and parking
If you fail to adapt yourdriving style, Lane Keep-
ing Assist can neither reduce the risk of accident
nor override the law sofphysics. Lane Keeping
Assist cannot take into account road, weather or
traffic conditions. Lane Keeping Assist is only an aid .You are responsible for the distance to the
vehicle in front, for vehicle speed,b raking in
good time and for staying in you rlane.
Lane Keeping Assist does not keep you rvehicle
in its lane.
The system may be impaired or may not function
if:
Rthere is poor visibility, e.g. due to insufficient
illuminatio nofthe road, or due to snow, rain,
fog or spray
Rthere is glare ,e.g. from oncoming traffic, the
sun or reflection from other vehicles( e.g. if
the road surface is wet)
Rthe windshield is dirty, fogged up, damaged or
covered, for instance by asticker, in the vicin-
ity of the camera
Rno, or several ,unclea rlane markings are pres-
ent for one lane, e.g. in aconstruction area
Rthe lane markings are worn away, dark or cov-
ered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too small
and the lane markings thus cannot be detec-
ted
Rthe lane markings change quickly, e.g. lanes
branch off, cross one another or merge
Rthe road is narrow and winding
Rthere are highlyv ariable shade conditions on
the road
Deactivating and activating Lane Keep-
ing Assist
XPress the Çbutton.
If the indicator lamp in the button lights up
and the display shows the Çsymbo linthe status area
,Lane Keeping Assist is switched
on but not ready for use.
If you drive at speedsa bove 40 mph
(60 km/h) and lane markings are detected,
the display shows the highlighted Çsym-
bol in the status area when Lane Keeping
Assist is activated. Lane Keeping Assist is
then ready for use.
Status indicators in the status overview submenu
The display in the Status Overviewsubmenu
of the on-board computer also shows the status
of Lane Keeping Assist (
Ypage 183). If Lane
Keeping Assist is activated but not ready for use,
the display shows the boundary lines in the sym-
bol as dashed :.IfLane Keeping Assist is ready
for use, the boundary lines in the symbo lare
shown as solid lines ;.
Setting the sensitivity of Lane Keeping
Assist
XIn theAssist.menu on the on-board com-
puter, select the Lane Keeping Assist:
function (Ypage 184).
XSelectStandardorAdaptive.
In the setting Standard
,now arning vibration
occurs if:
Ryou operate the turn signal in the correspond-
ing direction. In this event, the warnings are
suppressed for acertain period of time.
Rad riving safety system, such as ABS, BAS or
ESP®,i ntervenes or performs acontrol
action.
When Adaptive
is selected, there is also no
warning vibratio nwhen:
Ryou accelerate hard, e.g. kickdown.
Rbrake sharply
Ryou steer actively ,e.g. swerve to avoid an
obstacle or change lanes quickly.
Ryou cut the corner on asharp bend.
In order that you are warned only when neces-
sary and in good time if you cross the lane mark-
148Driving systems
Driving and parking
The rear view camera may show obstacles in
perspectival distortion, incorrectly or not at all.
The rear view camera cannot display all objects
located very near and/or under the rear
bumper. It does not warn you ofacollision, per-
sons or objects.
Under the following circumstances, the rear
view camera will not function, or will function in
al imited manner:
Rif the tailgate or rear door is open
Rif it is raining very heavily or snowing, or it is
foggy.
Rat night or in very dark places
Rif the camera is exposed to very bright light.
White lines may appear in the camera image.
Rif the area is lit by fluorescent light or LED
lighting. The camera image may flicker.
Rif the camera lens fogs up, e.g. when driving
into aheated garage in winter, causing arapid
change in temperature.
Rif the camera lens is dirty or obstructed.
Observe the notes on cleaning (Ypage 257).
Rif the rear of the vehicle is damaged. In this
case, have the camera position and setting
checked at aqualified specialist workshop.
Do not use the rear view camera in these situa-
tions. You could otherwise injure others or dam-
age object sand the vehicle while parking and
maneuvering.
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, rear-mounted bicycle
rack).
Guide lines are alwayss hown at road level. In
trailer mode, the guide lines are shown at the
level of the trailer coupling.
If you change wheel size, make sure they corre-
spond to the correctw heel size category
(
Ypage 267). If the category is changed without
recoding the control units in the vehicle, the rear
view camera cannot be precisely calibrated. The
guide lines at road level or at the level of the
trailer tow hitch will not be displayed correctly.
In vehicles with atailgate, the rear view camera
is protected from raindrops and dust by means
of aflap. When the rear view camera is activa-
ted, this flap opens.
The flap closes again when:
Ryou have finished the maneuvering process
Ryou switch off the engine For technical reasons, the flap may remain open
briefly after the rear view camera has been
deactivated.
Switching the rear view camera on or
off
XTo switch on: make sure that the key is in
position 2in the ignition lock.
XShift the transmission to position R.
On vehicles with atailgate, the rear view cam-
era flap opens. The audio display shows the
area behind the vehicle. The rear area shown
is divided by guide lines.
In vehicles with atrailer coupling installed, the
function mode of the rear view camera can be
switched over when the trailer is reached. The
rear view camera then changes the viewing
angle and shows alocating aid for the ball cou-
pling of the trailer tow hitch to help reach the
drawbar.
XTo switch function mode: select and con-
firm "Reverse parking" function :or "Cou-
pling up atrailer“ function ;using the audio
system control knob.
Information on the audio system control knob
can be found in the separate operating
instructions.
The symbol of the selected function is high-
lighted.
XTo switch off: shift the transmission to posi-
tion Nor D.
The dynamic guide lines are hidden and after
about 15 sthe rear view camera switches
itself off.
or
XDrive forwards more than about 30 ft (10 m).
or
XDrive forwards faster than 6mph (10 km/h) .
Driving system s159
Driving an dparking
Z
Using the steering wheel buttons
XPress=or; to select the Settingsmenu.
XPress:or9 to select Inst. Clus‐ter.
XPressato confirm.
XPress :or9 to select PermanentDisplay:.
XPressato confirm.
The displays hows the current selection of
Outside Temp.
or Speedom..
XPress ato change the setting.
Clock/Date submenu
Setting the time
Using the steering wheel buttons
XPress =or; to select the Settingsmenu.
XPress:or9 to select Time/Date.
XPressato confirm.
XPress :or9 to select the Time:func-
tion.
The displays hows the current time.
XTo set the time: pressaagain.
XPress =or; to switch between hours
and minutes.
XPress :or9 to set the hours or
minutes.
XThen press ato confirm.
The displays hows the updated time.
Setting the date
Using the steering wheel buttons
XPress=or; to select the Settingsmenu.
XPress:or9 to select Time/Date.
XPressato confirm.
XPress :or9 to select the Date:func-
tion.
The displays hows the current date.
XTo set the date: pressaagain.
XPress =or; to switch between day,
month and year.
XPress :or9 to set the day, month or
year.
XThen press ato confirm.
The displays hows the updated date.
Lights submenu
Activating/deactivating the surround
lighting and exterior lighting delayed
switch-off
If you activate the Locator Lightingfunction
and the light switch is turned to the Ãposi-
tion, the following functions are activated when
it is dark:
RSurround lighting: the exterior lighting
remains on for 40 seconds after the doors are
unlocked. When you start the engine, the sur-
round lighting is deactivated and the auto-
matic headlamp feature is activated
(
Ypage 93).
RExterior lighting delayed switch-off: the
exterior lighting remains on for 60 seconds
after the engine is switched off. If you close all
the doors and the tailgate/rear doors, the
exterior lighting switches off after
15 seconds.
Using the steering wheel buttons
XPress =or; to select the Settingsmenu.
XPress:or9 to select Lights.
XPressato confirm.
XPress :or9 to select the LocatorLightingfunction.
The current status is shown.
XTo activate/deactivate: pressaagain.
If you change the setting, conversion does not
take place until the next time the vehicle is
stationary.
Temporarilyd eactivating the exterior lighting
delayed switch-off:
XBefore leaving the vehicle, turn the key to
position 0in the ignition lock.
XTurn the key to position 2in the ignition lock.
The exterior lighting delayed switch-off is
deactivated until the next time the engine is
started.
With surround lighting and exterior lighting
delayed switch-off, the following light up
depending on the vehicle's equipment:
RParking lamps
RFog lamps
RLow-beam headlamps
RDaytime running lamps
186On-board computer (vehicles with steering wheelb uttons)
On-board computer and displays
Display messagesPossible causes/consequences andMSolutions
b
CheckLeftFogLamporCheck Right FogLam p
The left-han dorright-hand fron tfog lamp is faulty.
XVisit aqualified specialist workshop .
b
RearFog Lam p
The rear fog lamp is faulty.
XChange th ebulb (Ypage 98).
b
Chk .Front L. Park‐ing Lam porChk .Front R. Parkin gLamp
The fron tleftorf rontright parking lamp or standing lamp is faulty.
XChange th ebulb (Ypage 98).
b
Backup Light
The lef torright-hand backup lamp is faulty.
XChange th ebulb (Ypage 98).
b
Check Lef tTailLam porCheck RightTai lLamp
The lef torright-hand tai llamp is faulty.
XChange th ebulb (Ypage 98).
b
Malfunction
The exterio rlighting is faulty.
XVisit aqualified specialist workshop .
Vehicles withtrailer to whitch :af usem ay be defective.
XChec kthe fuses and if necessar yreplace any blown fuses (see th e
"Fus eallocation "supplement) .
XIf thedisplay message does no tdisappear ,consul taqualified spe -
cialist workshop .
b
Chk.L.DayRunnin gLgt.orChk .R.D ayRunningLgt.
The lef torright-hand daytime runnin glamp is faulty.
XChange th ebulb (Ypage 98).
196Display message s(vehicles withou tsteering wheelbuttons)
On-board computera nd displays
Display messagesPossible causes/consequences andMSolutions
b
Switch Off Lights
The lights are still switched on when you leav ethe vehicle. An addi-
tional warning tone sounds.
XTurn th eligh tswitch to Ãor$.
b
CheckLef tFogLamporCheck Right FogLam p
The left-han dorright-hand fron tfog lamp is faulty.
XVisit aqualified specialist workshop .
b
RearFog Lam p
The rear fog lamp is faulty.
XChange th ebulb (Ypage 98).
b
Check Front Lef tParkingLampor
Check Front Right
Parkin gLamp
The fron tleftorf rontright parking lamp or standing lamp is faulty.
XChange th ebulb (Ypage 98).
b
Backup Light
The lef torright-hand backup lamp is faulty.
XChange th ebulb (Ypage 98).
b
Check Lef tTailLam porCheck RightTai lLamp
The lef torright-hand tai llamp is faulty.
XChange th ebulb (Ypage 98).
b
Malfunction SeeOperator' sManual
The exterio rlighting is faulty.
XVisit aqualified specialist workshop .
Vehicles withtrailer to whitch :af usem ay be defective.
XChec kthe fuses and if necessar yreplace any blown fuses (see th e
"Fus eallocation "supplement) .
XIf thedisplay message does no tdisappear ,consul taqualified spe -
cialist workshop .
b
Check LeftDaytim eRunnin gLightor
Check Rt. Daytim e
RunningLight
The lef torright-hand daytime runnin glamp is faulty.
XChange th ebulb (Ypage 98).
210Display message s(vehicles wit hsteering whee lbuttons)
On-board computera nd displays