Instruments and controls125●Comfort
Ambient lighting : Adjusts the
brightness of the ambient
lighting.
Rear wiper in reverse gear :
Activates or deactivates
automatic switching on of the
rear window wiper when reverse
gear is engaged.
● Vehicle
Unlocking boot only : Activation /
deactivation.
Plip action : Driver / all doors.
● Security
Fatigue Detection system :
Activates or deactivates the
driver drowsiness system.
● Driving assistance
Speed recommendation :
Activates or deactivates the
function.Multimedia
Press : to open settings menu.
Unit settings
Select System configuration .
Change units for Distance and fuel
consumption and Temperature .
Language settings
Select Language .
Change language by touching the
respective entry.
Driving function
Press _.
Select Driving function .
In the corresponding submenus the
following settings can be changed:
● Parking sensors : Activates or
deactivates the parking assist sensors.
● Blind spot sensors : Activates or
deactivates side blind spot alert.
● Under-inflation initialization :
Initialises the tyre under-inflation
detection system.
● Diagnostic : Shows alert
messages of the diagnostic
system.
Memorising of preset speeds
This feature enables to define and
memorise up to six speed settings for
cruise control and speed limiter. By
default, a few speeds are already
memorised.
● Press _.
● Select Adjusting speeds .
● Select Cruise control or Speed
limiter .
● Select the speed setting to be changed.
126Instruments and controls●Type the new speed value via the
keypad and confirm with A /
OK .
● Confirm with A / OK once more
to exit the menu.
Vehicle settings
Press _.
Select Vehicle settings .
In the corresponding submenus the following settings can be changed:
● Parking
Prevention of door mirror folding :
Activates or deactivates the
automatic folding of the exterior
mirrors.
Rear wiper in reverse : Activates
or deactivates automatic
switching on of the rear window
wiper when reverse gear is
engaged.
● Headlights
Guide-me-home lighting :
Activates or deactivates the
function and adjusts its duration.Welcome lighting : Activates or
deactivates the function and
adjusts its duration.
Directional headlamps : Activates
or deactivates the cornering
lights.
● Comfort
Mood lighting : Adjusts the
brightness of the ambient
lighting.
● Safety
Speed reading/recommendation :
Activates or deactivates the
speed limit information by traffic sign recognition.
Active safety brake : Activates or
deactivates active emergency
braking, the alert distance for risk of collision can be selected.
Mirror adaptation in reverse :
Adjusts the exterior mirrors if
reverse gear is engaged to
facilitate pavement visibility.
Driver’s attention warning :
Activates or deactivates the
driver drowsiness system.Multimedia Navi
Press : to open settings menu.
Unit settings
Select System settings in the options
menu.
Change units for Distance and fuel
consumption and Temperature .
Confirm with A / OK .
Language settings
Select Languages .
Change language by touching the respective entry.
Confirm with A / OK .
Climate control141Heated exterior mirrors m 3 40.
Heated windscreen 9 3 45.
Air conditioning system
Controls for: ● temperature ñ
● air distribution w, x and y
● fan speed ý
● cooling A/C
● air recirculation q
● heated rear window è or heated
exterior mirrors m
Heated rear window è 3 44.
Heated exterior mirrors m 3 40.
Temperature ñ
Adjust the temperature by turning ñ
to the desired temperature.HI:warmLO:cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Air distribution w, x , y
w:to windscreen and front door
windowsx:to head area via adjustable air
ventsy:to foot well
All combinations are possible.
Fan speed ý
Adjust the air flow by turning ý to the
desired speed.
clockwise:increaseanticlockwise:decreaseCooling A/C
Press A/C to switch on cooling. The
LED in the button illuminates to
indicate activation. Cooling is only
functional when the engine is running and fan is switched on.
Press A/C again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) as soon as the
outside temperature is slightly above
the freezing point. Therefore,
condensation may form and drip from
under the vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons.
146Climate controlAir conditioning A/C
Press A/C to switch on cooling.
Cooling is only functional when the
engine is running and climate control
fan is switched on.
Press A/C again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) when outside
temperature is above a specific level. Therefore condensation may form
and drip from under the vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons.
Manual air recirculation q
Press
q to activate the air
recirculation mode. q is shown in the
display to indicate activation.
Press q again to deactivate
recirculation mode.
9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling, the
air humidity increases, so the
windows may mist up from inside.
The quality of the passenger
compartment air deteriorates,
which may cause the occupants to
feel drowsy.
In warm and very humid ambient air
conditions, the windscreen may mist
up from outside, when cold air is
directed towards it. If windscreen
mists up from outside, activate
windscreen wiper and deactivate w.
Demisting and defrosting the
windows h
●Press h. The LED in the button
illuminates to indicate activation.
152Driving and operatingDriving and
operatingDriving hints ............................... 153
Control of the vehicle ...............153
Steering ................................... 153
Starting and operating ...............153
New vehicle running-in ............153
Ignition switch positions ...........153
Power button ........................... 154
Starting the engine ..................155
Overrun cut-off ........................ 157
Stop-start system ....................157
Parking .................................... 160
Engine exhaust .......................... 161
Exhaust filter ............................ 161
Catalytic converter ...................161
AdBlue ..................................... 162
Automatic transmission ..............165
Transmission display ...............166
Gear selection ......................... 166
Manual mode ........................... 167
Electronic driving programmes 168
Fault ........................................ 168
Manual transmission ..................168Brakes........................................ 169
Antilock brake system .............169
Parking brake .......................... 170
Brake assist ............................. 171
Hill start assist ......................... 171
Ride control systems .................171
Electronic Stability Control and Traction Control system .........171
Selective ride control ...............172
Driver assistance systems .........174
Cruise control .......................... 174
Speed limiter ........................... 177
Adaptive cruise control ............180
Forward collision alert .............187
Active emergency braking .......188
Front pedestrian protection .....191
Parking assist .......................... 192
Side blind spot alert .................194
Panoramic view system ...........196
Rear view camera ...................199
Lane departure warning ..........200
Driver alert ............................... 201
Fuel ............................................ 203
Fuel for diesel engines ............203
Refuelling ................................ 204
Trailer hitch ................................ 205
General information .................205
Driving characteristics and towing tips .............................. 205Trailer towing........................... 206
Towing equipment ...................207
Trailer stability assist ...............210
Driving and operating153Driving hints
Control of the vehicle
Never coast with engine not
running
Many systems will not function in this
situation ( e.g. brake servo unit, power
steering). Driving in this manner is a danger to yourself and others.
All systems function during an
Autostop.
Stop-start system 3 157.
Pedals
To ensure the pedal travel is uninhibited, there must be no mats in the area of the pedals.
Use only floor mats, which fit properly
and are fixed by the retainers on the
driver side.Steering
If power steering assist is lost
because the engine stops or due to a system malfunction, the vehicle can
be steered but may require increased
effort.Starting and operating
New vehicle running-in Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period, fuel and engine oil consumption may be
higher.
Additionally, the cleaning process of
the exhaust filter may take place more
often.
Exhaust filter 3 161.
Ignition switch positions
Turn key:
Driving and operating157Starting the vehicle at lowtemperatures
Starting the engine without additional
heaters is possible down to -25 °С for diesel engines and -30 °C for petrol
engines. Required is an engine oil
with the correct viscosity, the correct fuel, performed services and a
sufficiently charged vehicle battery.
With temperatures below -30 °C the
automatic transmission requires a
warming phase of approx. 5 minutes.
The selector lever must be in position
P .
Turbo engine warm-up
Upon start-up, engine available
torque may be limited for a short time, especially when the engine
temperature is cold. The limitation is
to allow the lubrication system to fully
protect the engine.
Overrun cut-off
The fuel supply is automatically cut off
during overrun, i.e. when the vehicle
is driven with a gear engaged but accelerator pedal is released.Depending on driving conditions, the
overrun cut-off may be deactivated.
Stop-start system
The stop-start system helps to save
fuel and to reduce the exhaust
emissions. When conditions allow, it
switches off the engine as soon as the
vehicle is at a low speed or at a
standstill, e.g. at a traffic light or in a
traffic jam.
Activation The stop-start system is available as
soon as the engine is started, the
vehicle starts-off and the conditions
as stated below in this section are
fulfilled.Without touchscreen
The system is ready to operate when
the LED in the button D is not
illuminated. To activate the system
when the system is deactivated,
press D. If the stop-start system is
temporarily not available and the
button D is pressed, the LED in the
button flashes.With touchscreen
The system can be activated in the
vehicle personalisation 3 124. If the
stop-start system is temporarily not
available, the control indicator D
flashes for a few seconds.
DeactivationWithout touchscreen
Press D to deactivate the stop-start
system. The deactivation is indicated
when the LED in the button
illuminates.
Driving and operating161Engine exhaust9Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
rectified by a workshop.
Avoid driving with an open load
compartment, otherwise exhaust
gases could enter the vehicle.
Exhaust filter
Automatic cleaning process
The exhaust filter system filters soot particles out of the exhaust gases.
The start of saturation of the exhaust
filter is indicated by the temporary
illumination of + or C ,
accompanied by a message in the
Driver Information Centre and a
chime.
As soon as the traffic conditions
permit, regenerate the filter by driving at a vehicle speed of at least 60 km/huntil the control indicator
extinguishes.
Note
On a new vehicle, the first exhaust
filter regeneration operations may
be accompanied by a burning smell,
which is normal. Following
prolonged operation of the vehicle at very low speed or at idle, water
vapour can be emitted at the
exhaust on acceleration. This does
not affect the behaviour of the
vehicle or the environment.
Cleaning process not possible
If + or C stays on, accompanied
by an audible signal and a message,
this indicates that the exhaust filter
additive level is too low.
The reservoir must be topped-up
without delay. Seek the assistance of
a workshop.Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.Caution
Fuel grades other than those listed on page 3 268 could damage the
catalytic converter or electronic
components.
Unburnt petrol will overheat and damage the catalytic converter.
Therefore avoid excessive use of
the starter, running the fuel tank
dry and starting the engine by
pushing or towing.
In the event of misfiring, uneven
engine running, a reduction in engine performance or other unusual
problems, have the cause of the fault
rectified by a workshop as soon as
possible. In an emergency, driving
can be continued for a short period,
keeping vehicle speed and engine
speed low.