Driving and operating143Driving and
operatingDriving hints ............................... 144
Control of the vehicle ...............144
Steering ................................... 144
Starting and operating ...............144
New vehicle running-in ............144
Ignition switch positions ...........144
Power button ........................... 145
Power saving mode .................146
Starting the engine ..................147
Overrun cut-off ........................ 148
Stop-start system ....................148
Parking .................................... 151
Engine exhaust .......................... 152
Exhaust filter ............................ 152
Catalytic converter ...................153
AdBlue ..................................... 153
Automatic transmission ..............156
Transmission display ...............156
Selector lever .......................... 157
Manual mode ........................... 157
Electronic driving programmes 158
Fault ........................................ 159
Eco mode ................................ 159Manual transmission ..................159
Brakes ........................................ 160
Antilock brake system .............160
Parking brake .......................... 161
Brake assist ............................. 164
Hill start assist ......................... 164
Ride control systems .................164
Electronic Stability Control and Traction Control system .........164
Descent control system ...........165
Selective ride control ...............167
Driver assistance systems .........169
Cruise control .......................... 169
Speed limiter ........................... 171
Adaptive cruise control ............173
Forward collision alert .............180
Active emergency braking .......181
Front pedestrian protection .....184
Parking assist .......................... 185
Advanced parking assist .........189
Side blind spot alert .................193
Panoramic view system ...........195
Rear view camera ...................197
Lane keep assist .....................198
Driver alert ............................... 201
Fuel ............................................ 202
Fuel for petrol engines .............202
Fuel for diesel engines ............202
Refuelling ................................ 204Trailer hitch................................ 205
General information .................205
Driving characteristics and towing tips .............................. 205
Trailer towing ........................... 206
Towing equipment ...................206
Trailer stability assist ...............209
Driving and operating153Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.Caution
Fuel grades other than those listed on pages 3 202, 3 259 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.
Caution
Avoid contact of the paintwork with AdBlue.
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.
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 possible warning is Top
up emissions additive: Starting
prevented in 2400 km .
Driving and operating1839Warning
Emergency automatic braking is
an emergency crash preparation
feature and is not designed to
avoid crashes. Do not rely on the
system to brake the vehicle.
Emergency automatic braking will
not brake outside of its operating speed range and only responds to
detected vehicles and
pedestrians.
Forward looking brake assist
In addition to emergency automatic
braking, the forward looking brake
assist function makes the brake assist more sensitive. Therefore, pressing
the brake pedal less strongly results in immediate hard braking. This
function helps the driver brake
quicker and harder before the
imminent collision.
9 Warning
Active emergency braking is not
designed to apply hard
autonomous braking or to
automatically avoid a collision. It is designed to reduce the vehicle
speed before a collision. It may not
react to animals. After a sudden
lane change, the system needs a
certain time to detect the next
preceding vehicle.
The complete attention of the
driver is always required while
driving. The driver must always be
ready to take action and apply the brakes and steer to avoid
collisions.
The system is designed to work with
all occupants wearing their seat belts.
Forward collision alert 3 180.
Front pedestrian protection 3 184.
Deactivation Active emergency braking can be
deactivated in the personalisation
menu 3 119. If deactivated, m
illuminates in the instrument cluster
and a warning message is displayed
in the Driver Information Centre.
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 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 lamps are not working
244Vehicle careCaution
Deactivate the driver assistance
systems like active emergency
braking 3 181, otherwise the
vehicle may automatically brake during towing.
Switch the selector lever to neutral.
Release the parking brake.
Caution
Never tow a vehicle equipped with All Wheel Drive (AWD) with the
front or rear tyres on the road. If
you tow a vehicle equipped with
AWD while the front or rear tyres
are rolling on the road, the drive
system in the vehicle could be
severely damaged. When towing
vehicles equipped with AWD, all
four tyres must not be in contact
with the road.
Caution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.
When the engine is not running,
considerably more force is needed to
brake and steer.
To prevent the entry of exhaust gases from the towing vehicle, switch on the
air recirculation and close the
windows.
Vehicles with automatic transmission: The vehicle must be towed facing
forwards, not faster than 80 km/h nor further than 100 km. In all other cases
and when the transmission is
defective, the front axle must be
raised off the ground.
Seek the assistance of a workshop.
After towing, unscrew the towing eye.
Insert cap with the flange into the
recess and fix cap by pushing.
Towing another vehicle
Wrap a cloth around the tip of a flat
screwdriver, for example, to prevent paint damage. Insert the screwdriverin the slot at the lower part of the cap.
Release the cap carefully.
The towing eye is stowed with the vehicle tools 3 228.