86LightingLight switch in position AUTO:
switching on front fog lights will switch headlights on automatically.
Rear fog light
Operated by pressing H.
Light switch in position AUTO:
switching on rear fog light will switch
headlights on automatically.
Light switch in position 8: rear fog
light can only be switched on with
front fog lights.
The vehicle rear fog light is
deactivated when towing a trailer or a
plug is connected with the socket,
e.g. when a bicycle carrier is used.
Parking lights
When the vehicle is parked, the
parking lights on one side can be
activated:
1. Switch off ignition.
2. Move the lever all the way up (right parking lights) or down (left
parking lights).
Confirmed by a signal and the
corresponding turn lights control
indicator.
Reversing lights
The reversing light comes on when
the ignition is on and reverse gear is
selected.
Misted light covers
The inside of the light housing may
mist up briefly in poor, wet and cold weather conditions, in heavy rain or
after washing. The mist disappears
quickly by itself. To help, switch on the headlights.
98Driving and operatingDriving and
operatingDriving hints ................................. 99
Control of the vehicle .................99
Steering ..................................... 99
Starting and operating .................99
New vehicle running-in ..............99
Ignition switch positions .............99
Power button ........................... 100
Starting the engine ..................101
Overrun cut-off ........................ 103
Stop-start system ....................103
Parking .................................... 105
Engine exhaust .......................... 106
Exhaust filter ............................ 106
Catalytic converter ...................107
AdBlue ..................................... 107
Automatic transmission ..............110
Transmission display ...............110
Gear selection ......................... 111
Manual mode ........................... 112
Electronic driving programmes 112
Fault ........................................ 113
Interruption of power supply ....113
Manual transmission ..................114Brakes........................................ 115
Antilock brake system .............115
Parking brake .......................... 115
Brake assist ............................. 118
Hill start assist ......................... 118
Ride control systems .................118
Electronic Stability Control and Traction Control system .........118
Driver assistance systems .........120
Cruise control .......................... 120
Speed limiter ........................... 122
Adaptive cruise control ............124
Active emergency braking .......132
Forward collision alert .............135
Front pedestrian protection .....137
Parking assist .......................... 138
Advanced parking assist .........141
Side blind spot alert .................146
Panoramic view system ...........148
Rear view camera ...................150
Traffic sign assistant ................151
Lane keep assist .....................152
Driver alert ............................... 154
Fuel ............................................ 155
Fuel for petrol engines .............155
Fuel for diesel engines ............156
Refuelling ................................ 157
Trailer hitch ................................ 158
General information .................158Driving characteristics and
towing tips .............................. 159
Trailer towing ........................... 159
Driving and operating107As soon as the traffic conditions
permit, regenerate the filter by driving
at a vehicle speed of at least 60 km/h until 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 t 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 pages 3 155, 3 207 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.
AdBlue
General information
The selective catalytic reduction
(BlueInjection) is a method to
substantially reduce the nitrogen
oxides in the exhaust emission. This
is achieved by injecting a Diesel
Exhaust Fluid (DEF) into the exhaust
system. The ammonia released by
the fluid reacts with nitrous gases
(NO x) from the exhaust and turns it
into nitrogen and water.
The designation of this fluid is
AdBlue ®
. It is a non-toxic, non-
flammable, colourless and odourless
fluid which consists of 32% urea and
68% water.9 Warning
Avoid contact of your eyes or skin
with AdBlue.
In case of eye or skin contact,
rinse off with water.
108Driving and operatingCaution
Avoid contact of the paintwork withAdBlue.
In case of contact, rinse off with water.
AdBlue freezes at a temperature of
approx. -11 °C. As the vehicle is
equipped with an AdBlue pre-heater,
the emissions reduction at low
temperatures is ensured. The AdBlue
pre-heater works automatically.
Note
Frozen and again liquefied AdBlue is usable without quality loss.
The typical AdBlue consumption is
approx. 0.85 l per 1000 km, but can
also be higher depending on driving
behaviour (e.g. high load or towing).
Level warnings
Depending on the calculated range of AdBlue, different messages are
displayed in the Driver Information
Centre. The messages and the
restrictions are a legal requirement.
1. The first warning level is entered when the estimated AdBlue range
is between 2400 km and 800 km.
When switching on the ignition,
this warning will show up once
briefly with the calculated range.
Additionally, control indicator u
will illuminate and a chime will
sound. Driving is possible without
any restrictions.
2. The next warning level is entered when the estimated AdBlue rangeis below 800 km. The message
with the current range will always
be displayed when ignition is
switched on. Additionally, control
indicator u will flash and a chime
will sound. Refill AdBlue before
entering the next warning level.
3. The next warning level is entered with a range below 100 km. The
message with the current range
will always be displayed when
ignition is switched on.
Additionally, control indicator u
will flash and a chime will sound.
Refill AdBlue as soon as possible
before the AdBlue tank iscompletely empty. Otherwise, a
restart of the engine will not be
possible.
4. The last warning level is entered when the AdBlue tank is empty.
Restart of the engine is not
possible.
A message appears in the Driver
Information Centre. Additionally,
control indicator u will flash and
a chime will sound.
Refill the tank to a level of at least
5 l of AdBlue, otherwise restarting
of the engine is not possible.
High emission warnings In the event of a fault with the
emissions control system, different messages are displayed in the Driver Information Centre.
The messages and the restrictions
are a legal requirement. The warning
messages are accompanied by the
control indicators u, C and W.
Additionally, a chime will sound.
Follow the instructions of the warning
messages. If starting is prevented,
seek the assistance of a workshop.
Driving and operating113
To seletct the respective drive mode,
use the shown toggle switch.
Normal mode
The settings in this mode are set by
default. Everytime the ignition is
switched on, this mode is selected.
Comfort mode
Allows more comfortable driving and softer suspension.
Sport mode
The settings in this mode allow more
dynamic driving. The vehicle's
dynamic parameters can be
displayed in the Driver Information
Centre.
Eco mode
Reduces fuel consumption by
optimising the operation of the
heating and air conditioning and,
depending on version, the accelerator
pedal, the automatic gearbox and the gear shifting indicator.
Fault
In the event of a fault, C illuminates
a message is displayed in the Driver
Information Centre.
Vehicle messages 3 76.
Electronic transmission control
enables only third gear. The
transmission no longer shifts
automatically.
Do not drive faster than 100 km/h.
Have the cause of the fault remedied by a workshop.
Interruption of power supply In the event of an interruption of
power supply, the selector lever
cannot be moved out of the P
position.
Towing the vehicle 3 192.If the vehicle battery is discharged,
start the vehicle using jump leads
3 191.
If the vehicle battery is not the cause
of the fault, seek the assistance of a
workshop.
130Driving and operating● Do not use the adaptive cruisecontrol when towing a trailer.
● Do not use the adaptive cruise control on roads with an incline of
more than 10%.
As the radar's field of detection is
quite narrow, it is possible that the
system may not detect:
● vehicles of reduced width, e.g. motorcycles, scooters
● vehicles not running in the middle
of the lane
● vehicles entering a corner
● vehicles suddenly pulling out
Bends
The adaptive cruise control calculates
a predicted path based on the
centrifugal force. This predicted path
considers the current bend
characteristic, but cannot consider a
future bend change. The system may lose the current vehicle ahead or
consider a vehicle which is not in the
actual lane. This can happen when
entering or exiting a bend or if the
bend gets stronger or weaker. If it no
longer detects any vehicle ahead,
then w will extinguish.
If the centrifugal force is too high in a
bend, the system slows down the
vehicle slightly. This braking level is
not designed to avoid spinning-off the
bend. The driver is responsible for
reducing the selected speed before
entering a bend and in general to
adapt the speed to the road type and
to existing speed limits.
Motorways
On motorways, adapt the set speed
to the situation and the weather.
Always consider that adaptive cruise
control has a limited visibility range, a
limited braking level and a certain
reaction time to verify if a vehicle is on
the driving path or not. Adaptive
cruise control may not be able to
brake the vehicle in time to avoid a
collision with a much slower vehicle or after a lane change. This is
particularly true while driving fast or if the visibility is reduced due to weather
conditions.
While entering or exiting a motorway,
adaptive cruise control may lose the
vehicle ahead and accelerate up to
the set speed. For this reason,
decrease the set speed before the
exit or before the entry.
Vehicle path changes
If another vehicle enters your driving
path, adaptive cruise control will first
consider the vehicle when it is
completely in your path. Be ready to
134Driving and operating9Warning
Smart brake assist may increase
vehicle braking in situations when
it may not be necessary. You
could block the flow of traffic. If this occurs, take your foot off the brakepedal and then apply the brakes
as needed.
Forward collision alert 3 135.
Front pedestrian protection 3 137.
System limitations In some cases, the active emergencybraking system may provide an
automatic braking in situations that
seem to be unnecessary, for instance
in parking garages, due to various
types of objects, i.e., traffic signs or
vehicles in another lane. This is
normal operation, the vehicle does
not need service. Firmly apply the
accelerator pedal to override the
automatic braking if the situation and
the surroundings permit.
In the following cases, active
emergency braking performance
might be limited:
● driving on winding or hilly roads
● detecting vehicles with a trailer, tractors, muddy vehicles, etc.
● detecting a vehicle when weather
limits visibility, such as in fog,
rain, or snow
● driving during nighttime
● the sensor in the windscreen or the radar unit behind the front
bumper are blocked by snow, ice,
slush, mud, dirt etc.
● the windscreen is damaged or affected by foreign objects, e.g.
stickers
the bumper is damaged or
affected by foreign objects, e.g.
license plate support
Complete attention is always required
while driving, and you should be
ready to take action and apply the
brakes and / or steer the vehicle to
avoid crashes.We recommend to deactivate the
system in the vehicle personalisation
in the following cases:
● when towing a trailer or caravan
● when carrying long objects on roof bars or a roof rack
● when the vehicle is being towed with the engine running
● when the vehicle is fitted with snow chains
● when a spare wheel is fitted that is smaller than the other wheels
● before using an automatic car wash with the engine running
● before placing the vehicle on a rolling road in a workshop
● if the windscreen has been damaged close to the camera
● if the front bumper has been damaged
● if the brake lights are not working
Fault
In case the system requires a service,
a message is displayed in the Driver
Information Centre.
Driving and operating145Deactivation by the driver or by the
system during manoeuvring will be
indicated on the display. Additionally,
a chime sounds.
The system is switched off
automatically when towing an
electrically connected trailer, bicycle
carrier, etc.
Contact your dealer to switch off the
system for a prolonged period.
Fault
In the event of a fault, a message is
displayed in the Colour Info Display,
accompanied by an acoustic signal.
In the event of a fault in the power
steering, C illuminates and a
message is displayed in the Driver
Information Centre.9 Warning
Under certain circumstances,
various reflective surfaces on
objects or clothing as well as
external noise sources may cause the system to fail to detect
obstacles.
Special attention must be paid to
low obstacles which can damage
the lower part of the bumper.Caution
Performance of the system can be reduced when sensors are
covered, e.g. by ice or snow.
Performance of the parking assist
system can be reduced due to
heavy loading.
Special conditions apply if there
are taller vehicles in the vicinity
(e.g. off-road vehicles, mini vans,
vans). Object identification and correct distance indication in the
upper part of these vehicles
cannot be guaranteed.
Objects with a very small reflection
cross-section, e.g. objects of
narrow size or soft materials, may
not be detected by the system.
Parking assist systems do not
detect objects outside the
detection range.
Note
It is possible that the sensor detects a non-existing object caused by
echo disturbance from external
acoustic noise or mechanical
misalignments (sporadic false
warnings may occur).
Make sure that the front number
plate is properly mounted (not bent
and no gaps to the bumper on the left
or right side) and the sensors are
firmly in place.
Advanced parking assist system
may not respond to changes in the
available parking space after
initiating a parking manoeuvre. The
system may recognize an entry, a
gateway, a courtyard or even a crossing as a parking slot. After
selecting reverse gear the system
will start a parking manoeuvre. Take care regarding the availability of the
suggested parking slot.
Surface irregularities, e.g. on construction zones, are not detected
by the system. The driver accepts
responsibility.