Keys, doors and windows29Operation with the key in case of
a central locking system fault
In case of a fault, e.g. vehicle battery
or remote control/electronic key
battery is discharged, the driver's
door can be locked or unlocked with
the mechanical key.
Manual unlocking
Electronic key: press and hold the
latch to extract the integral key.
Manually unlock the driver's door by
inserting and turning the key in the
lock cylinder.
The other doors can be opened by
pulling the interior handle. The load
compartment and fuel filler flap will
possibly not be unlocked.
By switching on the ignition, the anti- theft locking system is deactivated.
Manual locking
Manually lock the driver's door by
inserting and turning the key in the lock cylinder.
To lock the other doors, first remove
the black cover by inserting a key and turning clockwise.
Insert key into the recess and move
latch sideways.
Remove key and attach the black
cover.
The fuel filler flap and tailgate are
possibly not locked.
Automatic locking Automatic locking after driving off This system allows automatic locking
of the doors as soon as the speed of
the vehicle exceeds 10 km/h.
74Instruments and controlsInstruments and
controlsControls ....................................... 75
Steering wheel adjustment ........75
Steering wheel controls .............75
Heated steering wheel ...............75
Horn ........................................... 76
Windscreen wiper/washer .........76
Rear window wiper/washer .......78
Outside temperature ..................78
Clock ......................................... 79
Power outlets ............................. 79
Inductive charging .....................80
Cigarette lighter ......................... 81
Ashtrays .................................... 81
Warning lights, gauges and indi‐ cators ........................................... 82
Instrument cluster ......................82
Speedometer ............................. 85
Odometer .................................. 86
Trip odometer ............................ 86
Tachometer ............................... 86
Fuel gauge ................................ 87
Fuel selector .............................. 87
Engine coolant temperature gauge ....................................... 88Engine oil level monitor.............89
Service display .......................... 89
Control indicators ......................90
Turn signal ................................. 90
Seat belt reminder .....................90
Airbag and belt tensioners .........91
Airbag deactivation ....................91
Charging system .......................91
Malfunction indicator light ..........91
Service vehicle soon .................92
Stop engine ............................... 92
System check ............................ 92
Brake and clutch system ...........92
Antilock brake system (ABS) .....92
Gear shifting .............................. 93
Lane departure warning ............93
Electronic Stability Control and Traction Control system ...........93
Electronic Stability Control and Traction Control system off ......93
Engine coolant temperature ......93
Preheating ................................. 94
Diesel particle filter ....................94
AdBlue ....................................... 94
Deflation detection system ........94
Engine oil pressure ....................94
Low fuel ..................................... 95
Autostop .................................... 95
Exterior light .............................. 95
High beam ................................. 95High beam assist.......................95
Low beam .................................. 95
Fog light ..................................... 95
Rear fog light ............................. 95
Rain sensor ............................... 95
Cruise control ............................ 95
Speed limiter ............................. 96
Traffic sign assistant ..................96
Door open .................................. 96
Information displays .....................96
Driver Information Centre ..........96
Info display ................................ 98
Head-up display ......................100
Vehicle messages ......................102
Warning chimes .......................102
Battery voltage ........................ 102
Vehicle personalisation ..............103
Telematics service .....................106
OnStar ..................................... 106
Instruments and controls799Warning
The road surface may already be
icy even though the display
indicates a few degrees above
0 °C.
Clock
Date and time are shown in the
Info-Display 3 98.
Setting date and time, see
Infotainment manual.
Power outlets
A 12 Volt power outlet is located in the
centre console.
Another power outlet is located in the console between the front seats.
Do not exceed the maximum power
consumption of 120 watts.
With ignition off, the power outlet is
deactivated. Additionally, the power outlet is deactivated in the event of
low vehicle battery voltage.
Electrical accessories that are
connected must comply with the
electromagnetic compatibility
requirements laid down in
DIN VDE 40 839.
Do not connect any current-delivering
accessories, e.g. electrical charging
devices or batteries.
Do not damage the outlets by using
unsuitable plugs.
Stop-start system 3 138.
USB charging port
One or two USB ports are located in
the centre console. Both USB ports
are prepared for charging devices.
When two USB ports are avilable, the
upper USB port can be used to
connect a phone for phone projection.
Climate control125Climate setting menu can also be
displayed
● by selecting Climate on the 7''
Colour-Info-Display or
● by pressing Í and then selecting
Climate from the menu on the 8''
Colour-Info-Display.
Automatic mode AUTO
Basic settings for automatic control
with maximum comfort:
● Press AUTO to start the air
conditioning automatically.
● Open all air vents to allow optimised air distribution in
automatic mode.
● Set the preselected temperatures for driver and front
passenger using the left and right
control dial. Recommended
temperature is 22 °C.
Temperature is indicated in
displays beside the control dials
and in the climate settings menu.
● Air recirculation mode 4 should
be deactivated. When
deactivated the LED in the button is not illuminated.
Manual settings
Climate control system settings can
be changed by activating the
following functions:Fan speed Z
Adjust the air flow by turning rotary
knob Z to the desired speed. Turn left
to decrease or turn right to increase.
Fan speed can also be changed by
touch buttons in the climate settings
display. Press MENU to enter the
menu.
Turning rotary knob Z anticlockwise:
fan and cooling are switched off.
To return to automatic mode, press
AUTO .
128Climate controlDemisting and defrosting the
windows à
● Press à. The LED in the button
illuminates to indicate activation.
● Temperature and air distribution are set automatically and the fan
runs at high speed.
● Switch on air conditioning by pressing A/C, if required.
● Switch on heated rear window b.
● Switch on heated windscreen ,.
● To return to previous mode press
à again, to return to automatic
mode press AUTO.
Note
If à is pressed while the engine is
running, an Autostop will be inhibited until à is pressed again.
If à is pressed while the engine is in
an Autostop, the engine will restart
automatically.
Stop-start system 3 138.
Deactivation of Electronic climate
control system
Cooling, fan and automatic mode can
be switched off by turning control dial
Z anticlockwise.
Activation by switching on the fan or
pressing AUTO.
Heated rear window, windscreen
and exterior mirrors b
3 39
Heated seats ß
3 47.Auxiliary heater
Air heater
Quickheat is an electric auxiliary air
heater which automatically warms up
the passenger compartment more
quickly.
144Driving and operatingNote
When unscrewing the protective cap from the filler neck, ammonia fumes
may emerge. Do not inhale as the
fumes have a pungent smell. The
fumes are not harmful by inhalation.
It is recommended to fill the AdBlue
tank completely.
The vehicle must be parked on a level surface.
The filler neck for AdBlue is located
behind the fuel filler flap, which is
located at left rear side of the vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked.
1. Remove key from ignition switch.
2. Close all doors to avoid ammonia fumes entering the interior of the
vehicle.
3. Release the fuel filler flap by pushing the flap 3 179.
4. Unscrew protective cap from the
filler neck.
5. Open AdBlue canister.
6. Mount one end of the hose on the
canister and screw the other end
on the filler neck.
7. Lift the canister until it is empty, or
until the flow from the canister has stopped. This can take up to five
minutes.
8. Place the canister on the ground to empty the hose, wait 15
seconds.
9. Unscrew the hose from the filler neck.
10. Mount the protective cap and turn
clockwise until it engages.
Note
Dispose of AdBlue canister
according to environmental
requirements. Hose can be reused
after flushing with clear water before
AdBlue dries out.
180Driving and operating
The fuel filler flap can only be opened
if the vehicle is unlocked. Release the
fuel filler flap by pushing the flap.
Petrol and Diesel refuelling To open, turn the cap slowly
anticlockwise.The fuel filler cap can be attached to the hook on the fuel filler flap.
To refuel, fully insert the pump nozzle
and switch it on.
After the automatic cut-off, the tank can be topped up by operating the
pump nozzle a maximum of two more
times.
Caution
Wipe off any overflowing fuel
immediately.
To close, turn the fuel filler cap
clockwise.
Close the flap and allow it to engage.
Fuel filler cap
Only use genuine fuel filler caps.
Diesel-engined vehicles have special fuel filler caps.
Driving and operating183Swivel the connecting socket
downwards. Remove the sealing plug
from the opening for the coupling ball
bar and stow it.
Checking the tensioning of the
coupling ball bar
● Red marking on rotary knob must
point towards green marking on
coupling ball bar.
● The gap between the rotary knob
and the coupling ball bar must be approx. 6 mm.
● The key must be in position c.
Otherwise, the coupling ball bar must be tensioned before being inserted:● Unlock coupling ball bar by
turning key to position c.
● Pull out rotary knob and turn
clockwise as far as it will go.
Inserting the coupling ball bar
Insert the tensioned coupling ball bar
in the opening and push firmly
upwards until it audibly engages.
The rotary handle snaps back into its
original position resting against the
coupling ball bar without a gap.
9 Warning
Do not touch rotary handle during
insertion.
Lock the coupling ball bar by turning
the key to position e. Remove the key
and close the protective flap.