132LightingAdaptive forward lighting
The Adaptive forward lighting
functions are only available with Bi-
Xenon headlights. Light range, light
distribution and intensity of light are
variably triggered depending on the
light conditions, weather and road
type.
Some functions of the Adaptive
forward lighting can be deactivated or
activated in the vehicle
personalisation menu. Select the
relevant setting in Settings, I Vehicle
in the Info-Display. Vehicle
personalisation 3 121.
With the light switch in position
AUTO all lighting functions are
available.
The following functions are available
also with light switch in position 9:
● dynamic curve lighting
● corner lighting
● reversing function
● dynamic automatic headlight levellingPlaystreet lighting
Activated automatically at low speed
up to approx. 20 mph. The light beam
is turned at an angle of 8° to the
roadside.
Town lighting Activated automatically at a speed
range between approx. 25 and
34 mph and when street lights are
detected by the light sensor. The light
range is reduced by an extended light
distribution.
Country lighting
Activated automatically at a speed
range between approx. 34 and
70 mph. The beam of light and the
brightness is different between the
left and the right side.
Motorway lighting
Activated automatically at a speed
above approx. 70 mph and minimal
steering movements. It switches on
after a delay or immediately when the vehicle is powerfully accelerated. The
light beam is longer and brighter.Adverse weather lighting
Activated automatically up to a speed
of approx. 43 mph, when the rain sensor recognizes condensation orthe wiper operates continuously. The
range, distribution and light intensity
is regulated variably depending on visibility.
Dynamic curve lighting
The light beam pivots based on
steering wheel angle and speed,
improving lighting in curves.
Control indicator f 3 109.
Corner lighting
134LightingDynamic automatic headlight
levelling
To prevent oncoming traffic from
dazzle, headlight levelling is
automatically adjusted based on
inclination information measured by
front and rear axle, acceleration or
deceleration and vehicle speed.
Fault in Adaptive forward lighting
system
When the system detects a failure in
the Adaptive forward lighting system,
the system moves to a preset position to avoid dazzling of oncoming traffic.
If this is not possible, the affected
headlight will be automatically
switched off. In any case, one
headlight will stay on. A warning is
displayed in the Driver Information Centre.Hazard warning flashers
Operated by pressing ¨.
In the event of an accident with airbag
deployment the hazard warning
flashers are activated automatically.
Turn and lane-change
signalslever up:right turn signallever down:left turn signal
If the lever is moved past the
resistance point, the turn signal is
switched on constantly. When the
steering wheel moves back, the turn
signal is automatically deactivated.
For three flashes, e.g. when changing
lanes, press the lever until resistance
is felt and then release.
140Climate controlClimate controlClimate control systems.............140
Air conditioning system ...........140
Automatic climate control system .................................... 142
Dual automatic climate control system .................................... 147
Auxiliary heater ........................151
Air vents ..................................... 151
Adjustable air vents .................151
Fixed air vents ......................... 152
Maintenance .............................. 152
Air intake ................................. 152
Pollen filter ............................... 152
Air conditioning regular operation ................................ 153
Service .................................... 153Climate control systems
Air conditioning system
Controller and buttons for the
following functions:
● temperature TEMP
● air distribution l M K
● fan speed Z
● cooling A/C
● air recirculation 4
● demisting and defrosting V
Heated rear window Ü 3 42.
Heated seats ß 3 53.
Ventilated seats A 3 53.
Heated steering wheel * 3 85.
Temperature TEMP
Turn controller:
red:warmblue:cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Climate control143
Controller and buttons for the
following functions:
● temperature TEMP
● air distribution l M K
● fan speed Z
● automatic mode AUTO
● cooling A/C
● air recirculation 4
● demisting and defrosting V
● system ON/OFF X
Heated rear window Ü 3 42.
Heated front seats ß 3 53.
Ventilated front seats A 3 53.
Heated steering wheel * 3 85.
Indication
Settings of temperature and fan
speed are indicated in the climate
display.
Each change of settings is shown
briefly in the Info-Display.
The electronic climate control system
is only fully operational when the
engine is running.
Climate control system settings are
saved in the key used to lock the
vehicle.
Automatic mode AUTO
Basic setting for maximum comfort:
● Press AUTO, the air distribution
and fan speed are regulated
automatically. The LED in the
button illuminates to indicate
activation.
● Press A/C to switch on optimal
cooling and demisting. The LED in the button illuminates to
indicate activation.
Climate control147Dual automatic climate
control system
The dual automatic climate control
allows different climatisation
temperatures for driver and front
passenger side.
In Automatic mode, temperature, fan speed and air distribution are
regulated automatically.
Panels and buttons for the following
functions:
● temperature RS
● air distribution l M K
● fan speed R ZS
● automatic mode AUTO
● cooling A/C
● air recirculation 4
● demisting and defrosting V
● system ON/OFF X
● dual zone temperature
synchronisation SYNC
Heated rear window Ü 3 42.
Heated front seats ß 3 53.
Ventilated front seats A 3 53.
Heated steering wheel * 3 85.
IndicationTemperature settings are indicated
separately on the panels for driver
and passenger side.
Each change of settings is shown in
the Info-Display for a few seconds.
The dual automatic climate control
system is only fully operational when
the engine is running.
Climate control system settings are
saved in the key used to lock the vehicle.
Automatic mode AUTO
154Driving and operatingDriving and
operatingDriving hints ............................... 155
Control of the vehicle ...............155
Steering ................................... 155
Starting and operating ...............155
New vehicle running-in ............155
Ignition switch positions ...........155
Power button ........................... 156
Retained power off ..................157
Starting the engine ..................158
Overrun cut-off ........................ 159
Stop-start system ....................159
Parking .................................... 162
Engine exhaust .......................... 163
Diesel particle filter ..................163
Catalytic converter ...................164
AdBlue ..................................... 164
Automatic transmission ..............167
Transmission display ...............167
Selector lever .......................... 168
Manual mode ........................... 169
Electronic driving programmes 170
Fault ........................................ 170
Interruption of power supply ....170Manual transmission ..................171
Drive systems ............................ 172
All-wheel drive ......................... 172
Brakes ........................................ 172
Antilock brake system .............172
Parking brake .......................... 173
Brake assist ............................. 175
Hill start assist ......................... 175
Ride control systems .................175
Traction Control system ..........175
Electronic Stability Control ......176
Interactive driving system ........177
Driver assistance systems .........180
Cruise control .......................... 180
Speed limiter ........................... 182
Adaptive cruise control ............183
Forward collision alert .............190
Following distance indication ...194
Active emergency braking .......194
Parking assist .......................... 196
Side blind spot alert .................202
Lane change alert ....................204
Rear view camera ...................205
Rear cross traffic alert .............207
Traffic sign assistant ................208
Lane departure warning ..........211
Fuel ............................................ 213
Fuel for petrol engines .............213Fuel for diesel engines ............213
Fuel for liquid gas operation ....213
Refuelling ................................ 215
Fuel consumption - CO 2-
Emissions ............................... 220
Trailer hitch ................................ 220
General information .................220
Driving characteristics and towing tips .............................. 221
Trailer towing ........................... 221
Towing equipment ...................222
Trailer stability assist ...............223
Driving and operating155Driving hints
Control of the vehicle
Never coast with engine not
running (except during Autostop)
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,
but there will be a controlled reduction
in power steering assist and vehicle
speed is reduced.
Stop-start system 3 159.
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.
Control indicator c 3 106.Caution
Vehicles equipped with hydraulic
power steering:
If the steering wheel is turned until it reaches the end of its travel, and
is held in that position for more
than 15 seconds, damage may
occur to the power steering
system and there may be loss of
power steering assist.
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 diesel particle filter may take
place more often.
Diesel particle filter 3 163.
Ignition switch positions Turn key:
156Driving and operating0:ignition off: Some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was
on previously1:accessory power mode: Steering wheel lock released, some
electrical functions are operable,
ignition is off2:ignition on power mode: Ignition
is on, diesel engine is preheating.
Control indicators illuminate and
most electrical functions are
operable3:engine start: Release key after
starting procedure beginsSteering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.9 Danger
Never remove the key from
ignition switch during driving as
this will cause steering wheel lock.
Power button
Electronic key must be inside the
vehicle.
Accessory power mode
Press Engine Start/Stop once without
operating clutch or brake pedal. The yellow LED in the button illuminates.
Steering wheel lock is released and
some electrical functions are
operable, ignition is off.Ignition on power mode
Press and hold Engine Start/Stop for
6 seconds without operating clutch or brake pedal. The green LED in the
button illuminates, diesel engine is
preheating. Control indicators
illuminate and most electrical
functions are operable.Engine start
Operate clutch pedal (manual
transmission) or brake pedal
(automatic transmission) and press
Engine Start/Stop once more.
Release button after starting
procedure begins.Ignition off
Press Engine Start/Stop briefly in
each mode or when engine is running and vehicle is stationary. Some
functions remain active until driver's
door is opened, provided the ignition
was on previously.