22Keys, doors and windows
FaultIf the central locking cannot be
operated or the engine cannot be
started, the cause may be one of the
following:
■ Fault in electronic key
■ Electronic key out of reception range
■ Battery voltage too low,
■ Overload of the central locking system by operating at frequent
intervals, the power supply is
interrupted for a short time
■ Interference from higher-power radio waves from other sources.
To rectify the cause of the fault,
change the position of the electronic
key.
Manual unlocking 3 22.
Memorised settings Whenever the ignition is switched off,
the following settings are
automatically memorised by the
remote control unit or the electronic
key:■ Automatic climate control
■ Lighting
■ Infotainment system
■ Central locking system
■ Sport mode settings
■ Comfort settings
The saved settings are automatically
used the next time the ignition is
switched on with the memorised key
with remote control unit 3 152 or
electronic key 3 21.
A precondition is that Personalisation
by Driver is activated in the personal
settings of the Info-Display. This must
be set for each remote control unit or
electronic key which is used.
Also memorised are the adjustments
of the driver's seat and exterior
mirrors, independent of the memory
positions 3 49.
Power seat automatically moves into
the saved position when unlocking
and opening the driver's door with the
memorised remote control or
electronic key and Auto Memory
Recall in the Info-Display is activated.Vehicle personalisation 3 121.
Central locking system
Unlocks and locks doors, load
compartment and fuel filler flap.
A pull on an interior door handle
unlocks the respective door. Pulling
the handle once more opens the door.
Notice
In the event of an accident in which
airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
Notice
A short time after unlocking with the
remote control the doors are locked
automatically if no door has been
opened.
24Keys, doors and windows
Unlocking and opening the tailgate4-door Saloon, Country Tourer,
Sports Tourer with power tailgate
Press button x when the ignition is
off until tailgate opens automatically.
The doors remain locked.
Power tailgate 3 28.
Confirmation
Operation of central locking system is
confirmed by the hazard warning
flashers.
Electronic key system operation
The electronic key must be outside
the vehicle, within a range of approx. one metre of the relevant door side.
Unlocking
Press the button on any exterior door
handle and pull the handle.
Unlocking mode can be set in the
vehicle personalisation menu in the
Colour-Info-Display. It can be
configured as follows:
■ all doors, load compartment and fuel filler flap are unlocked by
pressing a button on any exterior
handle once,
or
■ only the driver's door, load compartment and fuel filler flap are
unlocked by pressing the button on driver`s door exterior handle once.To unlock all doors, press buttontwice.
Select the relevant setting in Settings,
I Vehicle in the Colour-Info-Display.
Colour-Info-Display 3 117.
Vehicle personalisation 3 121.
The setting can be saved for the
electronic key being used.
Memorised settings 3 22.
Keys, doors and windows25
Locking
Press the button on any exterior door
handle.
All doors, load compartment and fuel
filler flap are locked.
The system only locks if ■ it has been more than 5 seconds since unlocking, or
■ twice unlocking presses have been
within 5 seconds, or
■ any door has been opened and then all doors are closed.
If the driver's door is not closed
properly or the electronic key remains in the vehicle and the ignition is not
off, locking will not be permitted and a warning tone sounds three times.
If there have been two or more
electronic keys in the vehicle and the
ignition was on once, the doors will be
locked even if just one electronic key
is taken out of the vehicle.
Unlocking and opening the tailgate
The tailgate and the doors can be
unlocked by pressing the button
under the tailgate moulding when
electronic key is in range.
Passive Locking
See Automatic locking 3 26.
Confirmation
Operation of central locking system is
confirmed by the hazard warning
flashers.Central locking buttons
Locks or unlocks all doors, the load
compartment and fuel filler flap from
the passenger compartment by a
switch in the driver's door panel.
Press the e button to lock.
Press the c button to unlock.
26Keys, doors and windows
Fault in radio remote control unitor electronic key system
Manual unlocking
Manually unlock the driver's door by
turning the key in the lock. Switch on
the ignition and press the central
locking button c to unlock all doors,
load compartment and fuel filler flap.
By switching on the ignition, the anti-
theft locking system is deactivated.
Manual locking
Manually lock the driver's door by
turning the key in the lock.
Fault in central locking system
Manual unlocking
Manually unlock the driver's door by
turning the key in the lock. The other
doors can be opened by pulling the
interior handle twice. The load
compartment and fuel filler flap
cannot be opened. To deactivate the
anti-theft locking system, switch on
the ignition 3 33.
Manual locking
Push inside locking knob of all doors
except driver's door. Then close the driver's door and lock it from the
outside with the key. The fuel filler flap and tailgate cannot be locked.
Automatic locking
Automatic locking after driving
off This security feature can be
configured to automatically lock all
doors, load compartment and fuel
filler flap after driving off and
exceeding a certain speed.When at a standstill after driving, the
vehicle will be unlocked automatically
as soon as the key is removed from
the ignition switch, or with electronic
key system when the ignition is
switched off.
Activation or deactivation of
automatic locking can be set in the
menu Settings , I Vehicle in the
Colour-Info-Display.
Colour-Info-Display 3 117.
Vehicle personalisation 3 121.
The setting can be saved for the
remote control or electronic key being used 3 22.
Automatic relock after unlocking This feature can be configured to
automatically lock all doors, load
compartment and fuel filler flap a
short time after unlocking with the
remote control or electronic key,
provided no door has been opened.
Activation or deactivation of
automatic relock can be set in the
menu Settings , I Vehicle in the
Colour-Info-Display.
110Instruments and controls
Illuminates green
Speed limiter is active. Set speed is
indicated near L symbol.
Speed limiter 3 174.
Traffic sign assistant
L displays detected traffic signs as
control indicator.
Traffic sign assistant 3 200.
Door open h illuminates red.
A door or the tailgate is open.Information displays
Driver Information Centre The Driver Information Centre (DIC)
is located in the instrument cluster.
Depending on the version and the
instrument cluster, the Driver
Information Centre is available as
Baselevel display, Midlevel display or Uplevel display.
DIC indicates depending on the
equipment:
■ overall and trip odometer
■ vehicle information
■ trip/fuel information
■ economic information
■ performance information
■ vehicle and warning messages
■ audio and infotainment information
■ phone information
■ navigation information
■ vehicle settingsBaselevel display
The menu pages of the Baselevel
display are selected by pressing the
MENU button on the turn signal lever.
Main menu symbols are indicated in
the top line of the display:
■ W Info Menu
■ X Settings Menu
■ s Economic Menu
Some of the displayed functions differ between vehicle driving and standstilland some functions are only active
when the vehicle is driving.
112Instruments and controls
Press p to open main menu page.
Select a main menu page with Q or
P .
Confirm a main menu page with 9.
Once a main menu page is selected, press Q or P to select subpages.
Press q to open a next folder of the
selected subpage.
Press Q or P to select functions or
to set a numeric value if required.
Press 9 to select and confirm a
function.
If the Driver Information Centre (DIC) requests the driver to confirm a
function or message by pressing H
(Select), confirm by pressing 9.
Once a main menu page is selected,
this selection remains stored until
another main menu page is selected.
This means once the Info Menu page
is selected, you can change the
subpages just by pressing P or Q.
Vehicle and service messages are
popped up in the DIC if required.
Confirm messages by pressing the 9 button. Vehicle messages 3 119.
Info Menu The following list contains all possible Info Menu pages. Some may not be
available for your particular vehicle. Depending on the display some
functions are symbolised.
Turn the adjuster wheel or press Q
or P to select a page:
■ Trip odometer 1/A Average consumptionAverage speed
■ Trip odometer 2/B Average consumption
Average speed
■ Digital speed
■ Fuel range
■ Fuel range LPG version
■ Instantaneous consumption
■ Remaining oil life
■ Tyre pressure
■ Gasoline fuel level LPG fuel level
■ Timer
■ Used fuel
■ Traffic sign assistant
■ Following distance
■ Coolant temperature
■ Battery voltage
■ Eco page: Top consumers
■ Economy trend
■ Eco index
■ Oil temperature
■ Oil pressure
Climate control139
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons. Activated cooling
might inhibit Autostops.
Stop-start system 3 156.
Demisting and defrosting the
windows V
■
Press button V: fan automatically
switches to higher speed, the air distribution is directed towards the
windscreen.
■ Set temperature controller TEMP to
warmest level.
■ Switch on heated rear window Ü.
■ Open side air vents as required and
direct them towards the door
windows.
Notice
If the V button is pressed while the
engine is running, an Autostop will
be inhibited until the V button is
pressed again.
If the V button is pressed while the
engine is in an Autostop, the engine
will restart automatically.
Stop-start system 3 156.
Maximum cooling
Briefly open the windows so that hot
air can disperse quickly.
■ Switch on cooling A/C.
■ Press button M for air distribution.
■ Set temperature controller TEMP to
coldest level.
■ Set fan speed controller Z to
highest level.
■ Open all vents.Air recirculation system 4
Press button 4 to activate air
recirculation mode. Activation is
indicated by the LED in the button.
Select air recirculation to assist in
cooling the interior or in blocking
outside odors or exhaust. When
recirculation is selected, a partial
ventilation to refresh the interior air
will occur every 10 minutes.
Press button 4 again to deactivate
recirculation mode.
In warm and very humid ambient air
conditions, the windscreen might mist
up from outside, when cold air is
directed to it. If windscreen mists up
from outside, activate windscreen
wiper and deactivate l.
Air distribution to l: Air recirculation
is deactivated.
Automatic climate control
system
In Automatic mode temperature, fan
speed and air distribution are
regulated automatically.
152Driving and operatingStarting 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 3 159.
Ignition switch positions
Turn key:0=Ignition off: some functions
remain active until key is
removed or driver's door is
opened, if ignition was on
previously.1=Accessory power mode: Steering
wheel lock released, some
electrical functions are operable,
ignition is off.2=Ignition on power mode: Ignition
is on, diesel engine is preheating.
Control indicators light up and the
most electrical functions are
operable.3=Engine start . Release key after
starting procedure begins.Steering wheel lock
Remove key from the ignition switch
and turn steering wheel until it
engages.
Power button
Electronic key must be inside the
vehicle.
Accessory power mode: press
Engine Start/Stop button 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.