Instruments and controls123Messages in the Info-DisplaySome important messages appear
additionally in the Info-Display. Some
messages only pop-up for a few
seconds.
Warning chimes
If several warnings appear at the same time, only one warning chime
will sound.
When starting the engine or whilst driving
The warning chime regarding
unfastened seat belts has priority
over any other warning chime.
● If seat belt is not fastened.
● If a door or the tailgate is not fully
closed when starting-off.
● If a certain speed is exceeded with parking brake applied.
● If adaptive cruise control deactivates automatically.
● If approaching a vehicle ahead too closely.●If a programmed speed or speed
limit is exceeded.
● If a warning message appears in the Driver Information Centre.
● If the parking assist detects an object.
● If an unintended lane change occurs.
● If reverse gear is engaged and the rear carrier system is
extended.
● If the exhaust filter has reached the maximum filling level.
When the vehicle is parked and/or
the driver's door is opened
● With exterior lights on.
During an Autostop ● If the driver's door is opened.
● If any condition for an autostart is
not fulfilled.Battery voltage
When the vehicle battery voltage is
running low, a warning message will
appear in the Driver Information
Centre.
1. Switch off immediately any electrical consumers which are
not required for a safe ride, e.g.
seat heating, heated rear window or other main consumers.
2. Charge the vehicle battery by driving continuously for a while or
by using a charging device.
The warning message will disappear
after the engine has been started two
times consecutively without a voltage drop.
If the vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.
124Instruments and controlsVehicle personalisationThe vehicle's behaviour can be
personalised by changing the settings in the Info-Display.
Some of the personal settings for
different drivers can be memorised
individually for each vehicle key.
Memorised settings 3 22.
Depending on vehicle equipment and
country-specific regulations, some of
the functions described below may
not be available.
Some functions are only displayed or
active when the engine is running.
Personal settings 7" IntelliLink Display
Press ;, select Settings and then
Vehicle on the touch-screen.
In the corresponding submenus the
following settings can be changed:
Vehicle ● Climate & Air Quality
Auto Fan Max Speed : Modifies
the fan regulation. Changed
setting will be active after
switching the ignition off and on
again.
Air Conditioning Mode : Activates
or deactivates cooling when
switching on the ignition or uses
the last chosen setting.
Auto Defog : Activates or
deactivates auto defog.
Auto Rear Defog : Automatically
activates heated rear window.
● Collision / Detection Systems
Rear View Camera Guidelines :
Activates or deactivates the rear
view camera guidelines on the
Info Display.
Park Assist : Activates or
deactivates the ultrasonic
parking assist. Activation is
selectable with or without
attached trailer coupling.
Auto Collision Preparation :
Activates or deactivates the
automatic brake functionality of
the vehicle in the event of
imminent collision danger. The
following is selectable: the
system will take over brake
control, warn by chimes only or is
deactivated completely.
Side Blind Zone Alert : Activates
or deactivates side blind zone alert.
● Comfort and Convenience
Chime Volume : Changes the
volume of warning chimes.
130LightingLightingExterior lighting.......................... 130
Light switch .............................. 130
Automatic light control .............131
High beam ............................... 131
High beam assist .....................131
Headlight flash ......................... 132
Headlight range adjustment ....132
Headlights when driving abroad .................................... 133
Daytime running lights .............133
LED headlights ........................ 134
Hazard warning flashers ..........135
Turn lights ................................ 135
Front fog lights ......................... 135
Rear fog light ........................... 136
Parking lights ........................... 136
Reversing lights .......................136
Misted light covers ...................136
Interior lighting ........................... 137
Instrument panel illumination control ..................................... 137
Interior lights ............................ 137
Reading lights .......................... 138
Sunvisor lights ......................... 138Lighting features ........................138
Centre console lighting ............138
Entry lighting ............................ 138
Exit lighting .............................. 138
Battery discharge protection ....139Exterior lighting
Light switch
Turn light switch:
AUTO:automatic light control
switches automatically
between daytime running
light and headlight8:sidelights9:headlights
When switching on the ignition,
automatic light control is active.
Control indicator 8 3 116.
134LightingLED headlights
LED lighting system includes: ● LED headlights for low and high beam
● cornering lights
● town light
● high beam assist
● reverse parking function
● eco mode
● dynamic automatic headlight levelling
LED headlights for low and
highbeam
LED headlights for low and high beam
ensure better visibility under all
conditions.
Operation is the same as for halogen headlights.
Light switch 3 130 , high beam 3 131,
headlight flash 3 132, headlights
when driving abroad 3 133.
Automatic light control 3 131.Cornering lights
On tight bends or when turning off,
depending on the steering angle or
the indicator light signal, an additional left or right reflector is switched on
which illuminates the road in the
direction of travel. It is activated up to
a speed of 70 km/h.
Town light
Activated automatically at a speed upto approx. 55 km/h. In situations with
exterior ambient light both cornering lights are switched on with reduced
intensity. The light is wide and
symmetrical.
High beam assist
3 131
Reverse parking function
To assist driver's orientation when
parking, both corner lights and
reversing light illuminate when
headlights are on and reverse gear is
engaged. They remain illuminated for a short time after disengaging reverse
gear or until driving faster than
7 km/h in a forward gear.
Eco mode If the vehicle stops, e. g. due to traffic lights, an energy saving mode forheadlights is activated.
Dynamic automatic headlight
levelling
To prevent oncoming traffic frombeing dazzled, headlight levelling is
automatically adjusted based on
vehicle inclination information.
Headlights when driving abroad 3 133.
Driving and operating197Driving and
operatingDriving hints ............................... 198
Control of the vehicle ...............198
Steering ................................... 198
Starting and operating ...............198
New vehicle running-in ............198
Ignition switch positions ...........198
Retained power off ..................199
Starting the engine ..................199
Overrun cut-off ........................ 200
Stop-start system ....................201
Parking .................................... 203
Engine exhaust .......................... 204
Exhaust filter ............................ 204
Catalytic converter ...................205
AdBlue ..................................... 206
Automatic transmission ..............209
Transmission display ...............209
Selector lever .......................... 209
Manual mode ........................... 210
Electronic driving programmes 210
Fault ........................................ 211
Interruption of power supply ....211
Manual transmission ..................212Brakes........................................ 213
Antilock brake system .............213
Parking brake .......................... 213
Brake assist ............................. 215
Hill start assist ......................... 215
Ride control systems .................216
Traction Control system ..........216
Electronic Stability Control ......217
Interactive driving system ........218
Driver assistance systems .........219
Cruise control .......................... 219
Speed limiter ........................... 221
Adaptive cruise control ............222
Forward collision alert .............229
Following distance indication ...232
Active Emergency Braking ......233
Parking assist .......................... 234
Side blind spot alert .................237
Rear view camera ...................239
Traffic sign assistant ................240
Lane departure warning ..........244
Fuel ............................................ 245
Fuel for petrol engines .............245
Fuel for diesel engines ............246
Fuel for natural gas operation . 247
Fuel for liquid gas operation ....247
Refuelling ................................ 248
Trailer hitch ................................ 253
General information .................253Driving characteristics and
towing tips .............................. 253
Trailer towing ........................... 253
Towing equipment ...................254
Trailer stability assist ...............256
198Driving and operatingDriving 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 3 201.
Idle boost
If charging of the vehicle battery is
required due to battery condition, the
power output of the generator must be increased. This will be achieved by an idle boost which may be audible.
A message appears in the Driver
Information Centre.
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's 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.
Control indicator c 3 114.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 and the cleaning process of
the exhaust filter may take place more
often. Autostop may be inhibited to
allow for charging of the vehicle
battery.
Exhaust filter 3 204.
Ignition switch positions Turn key:
208Driving and operating1. Continuously drive the vehiclefor 10 minutes making sure that
vehicle speed is always higher
than 20 km/h.
2. If AdBlue refill is detected successfully, AdBlue supply-
driven limitations will disappear.
If AdBlue refill is still not detected, seek the assistance of a workshop.
If AdBlue must be refilled at
temperatures below -11 °C, the
refilling of AdBlue may not be
detected by the system. In this
event, park the vehicle in a space
with a higher ambient temperature
until AdBlue is liquefied.
Note
When unscrewing the protective cap from the filler neck, ammonia fumesmay emerge. Do not inhale as the
fumes have a pungent smell. The
fumes are not harmful by inhalation.
The AdBlue tank should be filled
completely. This must be done if the
warning message regarding
prevention of an engine restart is
already displayed.The vehicle must be parked on a level surface.
The filler neck for AdBlue is located behind the fuel filler flap, which is
located at right rear side of the
vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked.
1. Remove key from ignition switch.2. Close all doors to avoid ammonia fumes entering the interior of the
vehicle.
3. Release the fuel filler flap by pushing the flap 3 248.
4. Unscrew protective cap from the
filler neck.
5. Open AdBlue canister.
6. Mount one end of the hose on the
canister and screw the other end
on the filler neck.
7. Lift the canister until it is empty, or
until the flow from the canister has stopped. This can take up to five
minutes.
8. Place the canister on the ground to empty the hose, wait 15
seconds.
9. Unscrew the hose from the filler neck.
10. Mount the protective cap and turn
clockwise until it engages.
Note
Dispose of AdBlue canister
according to environmental
requirements. Hose can be reused
after flushing with clear water before
AdBlue dries out.
Driving and operating213Brakes
The brake system comprises two
independent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when the brake pedal
is depressed firmly. Considerably
more force is needed for this. The
braking distance is extended. Seek the assistance of a workshop before
continuing your journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has
been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
Control indicator R 3 112.
Antilock brake system
Antilock brake system (ABS)
prevents the wheels from locking.ABS starts to regulate brake pressure as soon as a wheel shows a tendency to lock. The vehicle remains
steerable, even during hard braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that
the pedal is pulsating. Do not reduce
the pressure on the pedal.
After starting off the system performs
a self-test which may be audible.
Control indicator u 3 113.
Adaptive brake light During full braking, all three brake
lights flash for the duration of ABS
control.
Fault9 Warning
If there is a fault in the ABS, the
wheels may be liable to lock due
to braking that is heavier than
normal. The advantages of ABS are no longer available. During
hard braking, the vehicle can no longer be steered and may
swerve.
Have the cause of the fault remedied
by a workshop.
Parking brake
9 Warning
Before leaving the vehicle, check
parking brake status. Control
indicator R (manual parking
brake) or m (electrical parking
brake) must illuminate constantly.