96Instruments and controlsInstruments and
controlsControls ....................................... 97
Steering wheel adjustment ........97
Steering wheel controls .............97
Heated steering wheel ...............97
Horn ........................................... 98
Windscreen wiper/washer .........98
Rear window wiper/washer .......99
Outside temperature ................100
Clock ....................................... 100
Power outlets ........................... 101
Cigarette lighter .......................102
Ashtrays .................................. 102
Warning lights, gauges and indi‐ cators ......................................... 103
Instrument cluster ....................103
Speedometer ........................... 103
Odometer ................................ 103
Trip odometer .......................... 103
Tachometer ............................. 104
Fuel gauge .............................. 104
Fuel selector ............................ 105
Engine coolant temperature gauge ..................................... 107
Service display ........................ 107Control indicators ....................108
Turn signal ............................... 110
Seat belt reminder ...................111
Airbag and belt tensioners .......111
Airbag deactivation ..................112
Charging system .....................112
Malfunction indicator light ........112
Brake and clutch system .........112
Operate pedal .......................... 113
Electric parking brake ..............113
Electric parking brake fault ......113
Antilock brake system (ABS) ...113
Gear shifting ............................ 114
Power steering ........................ 114
Following distance ...................114
Lane departure warning ..........114
Electronic Stability Control off . 114
Electronic Stability Control and Traction Control system .........114
Traction Control system off .....114
Preheating ............................... 115
Diesel particle filter ..................115
AdBlue ..................................... 115
Tyre pressure monitoring system .................................... 115
Engine oil pressure ..................115
Low fuel ................................... 116
Immobiliser .............................. 116
Exterior light ............................ 116
High beam ............................... 116High beam assist.....................116
LED headlights ........................ 116
Fog light ................................... 116
Rear fog light ........................... 116
Cruise control .......................... 116
Adaptive cruise control ............117
Vehicle detected ahead ...........117
Speed limiter ........................... 117
Traffic sign assistant ................117
Door open ................................ 117
Information displays ...................117
Driver Information Centre ........117
Info display .............................. 121
Vehicle messages ......................122
Warning chimes .......................123
Battery voltage ........................ 123
Vehicle personalisation ..............124
Telematics service .....................125
OnStar ..................................... 125
Instruments and controls107Seek the assistance of a workshop in
the event of all other faults.Caution
Repairs and adjustments may only be made by trained specialists in
order to maintain the safety and
warranty on the LPG system.
Liquid gas is given a particular odour
(odorised) so that any leaks can be
detected easily.
9 Warning
If you smell gas in the vehicle or in
the immediate vicinity, switch to petrol mode immediately. No
smoking. No naked flames or
ignition sources.
If the gas odour persists, do not start
the engine. Have the cause of the
fault remedied by a workshop.
When using underground car parks,
follow the instructions of the operator
and local laws.
Note
In the event of an accident, switch off
the ignition and lights.
Fuel for liquid gas operation 3 248.
Engine coolant temperature gauge
Number of LEDs displayed shows the coolant temperature.
up to 3 LEDs:engine operating
temperature not
yet reached4 to 6 LEDs:normal operating
temperaturemore than 6
LEDs:temperature too
highCaution
If engine coolant temperature is
too high, stop vehicle, switch off
engine. Danger to engine. Check
coolant level.
Service display
The engine oil life system informs
when to change the engine oil and
filter. Based on driving conditions, the interval at which an engine oil and
filter change will be indicated can vary
considerably.
110Instruments and controlsOverviewOTurn signal 3 110XSeat belt reminder 3 111vAirbag and belt tensioners
3 111VAirbag deactivation 3 112pCharging system 3 112ZMalfunction indicator light
3 112RBrake and clutch system 3 112mElectric parking brake 3 113jElectric parking brake fault
3 113-Operate pedal 3 113uAntilock brake system (ABS)
3 113RGear shifting 3 114EFollowing distance 3 114cPower steering 3 114)Lane departure warning 3 114nElectronic Stability Control off
3 114bElectronic Stability Control and
Traction Control system 3 114kTraction Control system off
3 114!Preheating 3 115%Diesel particle filter 3 115YAdBlue 3 115wTyre pressure monitoring
system 3 115IEngine oil pressure 3 115YLow fuel 3 116dImmobiliser 3 1168Exterior light 3 116CHigh beam 3 116fHigh beam assist 3 116fLED headlights 3 134>Fog light 3 116rRear fog light 3 116mCruise control 3 116 / Adaptive
cruise control 3 117CAdaptive cruise control 3 117AVehicle detected ahead 3 117LSpeed limiter 3 117LTraffic sign assistant 3 117hDoor open 3 117
Turn signal
O illuminates or flashes green.
Illuminates briefly
The parking lights are switched on.
Flashes
A turn signal or the hazard warning flashers are activated.
Rapid flashing: failure of a turn signal light or associated fuse, failure of turn
signal light on trailer.
Bulb replacement 3 268, Fuses
3 275.
Turn signals 3 135.
Instruments and controls121Remaining oil life
Indicates an estimate of the oil's
useful life. The number in percentage
means the current remaining oil life
and indicates when to change the
engine oil and filter 3 107.
Tyre pressure
Tyre pressures of all wheels are
displayed on this page during driving
3 284.
Tyre load
The tyre pressure category according to the actual tyre inflation pressure
can be selected 3 284.
Following distance
Displays the distance in seconds to a preceding moving vehicle 3 233. If
Adaptive cruise control is active this
page shows the following distance
setting instead.
Traffic sign assistant
Displays the detected traffic signs for
the current route section 3 241.Economy information menu @
Possible pages are: ● economy trend
● economy index
● top consumers
Economy trend
Displays the average consumption
development over a distance of
50 km. Filled segments display the
consumption in 5 km steps and shows the effect of topography or driving
behaviour on fuel consumption.
Graph can be reset by pressing
SET/CLR .
Economy index
The current fuel consumption is
indicated on an economic scale. For
economical driving, adapt driving
style to keep the filled segments
within the Eco area. The more
segments are filled, the higher the
fuel consumption.
Simultaneously, the average
consumption value is indicated.
Top consumers
List of top comfort consumers
currently switched on is displayed in descending order. Fuel saving
potential is indicated.
During sporadic driving conditions,
the engine will activate the heated
rear window automatically to increase
the engine load. In this event, the
heated rear window is indicated as
one of the top consumers, without
activation by the driver.
Info display The Info-Display is located in the
instrument panel near the instrument
cluster.
198Driving and operatingDriving and
operatingDriving hints ............................... 199
Control of the vehicle ...............199
Steering ................................... 199
Starting and operating ...............199
New vehicle running-in ............199
Ignition switch positions ...........199
Retained power off ..................200
Starting the engine ..................200
Overrun cut-off ........................ 201
Stop-start system ....................202
Parking .................................... 204
Engine exhaust .......................... 205
Diesel particle filter ..................205
Catalytic converter ...................206
AdBlue ..................................... 207
Automatic transmission ..............210
Transmission display ...............210
Selector lever .......................... 210
Manual mode ........................... 211
Electronic driving programmes 211
Fault ........................................ 212
Interruption of power supply ....212
Manual transmission ..................213Brakes........................................ 214
Antilock brake system .............214
Parking brake .......................... 214
Brake assist ............................. 216
Hill start assist ......................... 216
Ride control systems .................217
Traction Control system ..........217
Electronic Stability Control ......218
Interactive driving system ........219
Driver assistance systems .........220
Cruise control .......................... 220
Speed limiter ........................... 222
Adaptive cruise control ............223
Forward collision alert .............230
Following distance indication ...233
Active Emergency Braking ......234
Parking assist .......................... 235
Side blind spot alert .................238
Rear view camera ...................240
Traffic sign assistant ................241
Lane departure warning ..........245
Fuel ............................................ 246
Fuel for petrol engines .............246
Fuel for diesel engines ............247
Fuel for natural gas operation . 248
Fuel for liquid gas operation ....248
Refuelling ................................ 248
Fuel consumption - CO 2-
Emissions ............................... 253Trailer hitch................................ 254
General information .................254
Driving characteristics and towing tips .............................. 255
Trailer towing ........................... 255
Towing equipment ...................256
Trailer stability assist ...............258
Driving and operating199Driving 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 3 202.
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 diesel particle filter may take
place more often. Autostop may be
inhibited to allow for charging of the vehicle battery.
Diesel particle filter 3 205.
Ignition switch positions Turn key:
Driving and operating205Note
In the event of an accident with
airbag deployment, the engine is
turned off automatically if the vehicle
comes to a standstill within a certain
time.Engine exhaust9 Danger
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.
Diesel particle filter
Automatic cleaning process
The diesel particle filter system filters
harmful soot particles out of the
exhaust gases. The system includes
a self-cleaning function that runs
automatically during driving without
any notification. The filter is cleaned
by periodically burning off the soot
particles at high temperature. This
process takes place automatically
under set driving conditions and may take up to 25 minutes. Typically it
needs between seven and twelve
minutes. Autostop is not available
and fuel consumption may be higher
during this period. The emission of
smells and smoke during this process is normal.
System requires cleaning
Under certain conditions, e.g. driving
short distances, the system cannot
clean itself automatically.
If cleaning of the filter is required and if previous driving conditions did not
enable automatic cleaning, it will be
206Driving and operatingindicated by illumination of % and a
warning message in the Driver
Information Centre.
% illuminates along with a warning
message when diesel particle filter is
full. Start cleaning process as soon as
possible.
% flashes along with a warning
message when diesel particle filter
has reached the maximum filling
level. Start cleaning process
immediately to avoid damage to the
engine.
Activate self-cleaning process To activate cleaning process,
continue driving, keep engine speed
above 2000 rpm. Shift down if
necessary. Diesel particle filter
cleaning is then started.
Cleaning process is completed more
quickly at high engine speeds and
loads.
Control indicator % extinguishes as
soon as the self-cleaning operation is
complete. Keep on driving until self-
cleaning operation is complete.Caution
If possible, do not interrupt
cleaning process. Drive until
cleaning is completed to avoid the need for service or repair by a
workshop.
Cleaning process not possible
If cleaning is not possible for anyreasons, control indicator Z
illuminates and a warning message
appears in the Driver Information
Centre. Engine power may be
reduced. Seek the assistance of a
workshop immediately.
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.
Caution
Fuel grades other than those listed on pages 3 246, 3 313 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.