Page 74 of 229

72Instruments and controls9Warning
When the engine is off,
considerably more force is needed
to brake and steer. During an
Autostop the brake servo unit will still be operational.
Do not remove key until vehicle is stationary, otherwise the steeringwheel lock could engage
unexpectedly.
Keep engine turned off and let the
vehicle be towed to a workshop.
Low fuel 2 illuminates yellow.
Level in fuel tank is too low.
Refuelling 3 157.
Bleeding the diesel fuel system
3 168.
Autostop n illuminates or flashes green.
Illuminates green
Engine is in an Autostop.
Flashes green
Autostop is temporarily unavailable,
or Autostop mode is invoked
automatically.
Stop-start system 3 103.
Exterior light
F illuminates green.
The exterior lights are on 3 80.
Low beam D illuminates green.
Illuminated when low beam is on.
High beam
A illuminates blue.
Illuminates when high beam is on,
during headlight flash 3 81.
High beam assist
B illuminates green.The high beam assist is activated
3 83.
LED headlights C illuminates and a warning
message is displayed in the Driver
Information Centre.
Seek the assistance of a workshop.
Front fog lights
G illuminates green.
The front fog lights are on 3 85.
Rear fog light H illuminates yellow.
The rear fog light is on 3 86.
Rain sensor y illuminates green.
Illuminated when rain sensor position on wiper lever is selected.
Windscreen wiper and washer 3 56.
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Lighting85Hazard warning flashers
Operated by pressing c.
When braking in an emergency, the
hazard warning flashers are switched
on automatically, depending on the
force of deceleration. They are
switched off automatically the first
time you accelerate.
Turn lightsup:right turn lightsdown:left turn lights
A resistance point can be felt when
moving the indicator lever.
Constant flashing is activated when
the indicator lever is being moved
beyond the resistance point. It is
deactivated when the steering wheel
is moved in the opposite direction or
indicator lever is manually moved
back to its neutral position.
Activate temporary flashing by
holding the indicator lever just before
the resistance point. Turn lights will
flash until indicator lever is being
released.
To activate three flashes, tap the
indicator lever briefly without passing
the resistance point.
If you forget to cancel the turn lights
for more than 20 seconds, the volume
of the audible signal will increase if
the speed is above 80 km/h.
Front fog lights
Operated by pressing >.
Page 102 of 229

100Driving and operating0:ignition off: some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was
on previously1:ignition on power mode: ignition
is on, diesel engine is preheating, control indicators illuminate and
most electrical functions are
operable2:engine start: release key after
engine has been started
Steering 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
The electronic key or smart access
device must be inside the vehicle.
Engine start
Operate the clutch pedal (manual
transmission), the brake pedal and
press Start/Stop .Ignition on power mode without
starting the engine
Press Start/Stop without operating
clutch or brake pedal. Control
indicators illuminate and most
electrical functions are operable.Engine and ignition off
Press 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.Emergency shut off during driving
Press Start/Stop for 5 seconds
3 101. Steering wheel locks as soon
as vehicle is stationary.
Steering wheel lock
The steering wheel lock activates
automatically when:
● The vehicle is stationary.
● The ignition has been switched off.
To release steering wheel lock, open
and close driver's door and switch the ignition on power mode or start the
engine directly.
Page 103 of 229

Driving and operating1019Warning
If the vehicle battery is discharged,
the vehicle must not be towed,
tow-started or jump-started as the
steering wheel lock cannot be
disengaged.
Smart access
This function enables the starting of the vehicle via a mobile device. The
vehicle is controlled via an
application.
After entering into the vehicle and
confirming a message, there are
10 seconds to start the vehicle.
When no message pops up, place the smart phone in the designated area.
Operation on vehicles with
electronic key system in case of
failure
If either the electronic key fails or the battery of the electronic key is weak,
a message may be displayed in the
Driver Information Centre.
Hold the electronic key at the marking on the steering column cover as
shown in the illustration.
On vehicles with manual
transmission, select neutral gear,
operate the clutch pedal, the brake
pedal and press Start/Stop.
On vehicles with automatic
transmission, set the selector lever to position P, operate the brake pedal
and press Start/Stop.
This option is intended for
emergencies only. Replace the
electronic key battery as soon as
possible 3 11.
For unlocking or locking the doors,
see fault in radio remote control unit
or electronic key system 3 12.
Starting the engine
Vehicles with ignition switch
Turn key to position 1 to release the
steering wheel lock.
Manual transmission: operate clutch
and brake pedal.
Automatic transmission: operate
brake pedal and move selector lever
to P or N.
Do not operate accelerator pedal.
Page 108 of 229

106Driving and operatingbutton. Turn the steering wheel
until the steering wheel lock is
felt to engage.
● Lock the vehicle.
● Activate the anti-theft alarm system.
● The engine cooling fans may run
after the engine has been
switched off 3 163.
Caution
After running at high engine
speeds or with high engine loads,
operate the engine briefly at a low load or run in neutral for
approx. 30 seconds before
switching off, in order to protect
the turbocharger.
Note
In the event of an accident with
airbag deployment, the engine is
switched off automatically if the
vehicle comes to a standstill within a
certain time.
In countries with extreme low
temperatures it may be necessary to park the vehicle without applied
parking brake. Make sure to park the
vehicle on a level surface.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.
Exhaust filter
Automatic cleaning process
The exhaust filter system filters soot particles out of the exhaust gases.
The start of saturation of the exhaust
filter is indicated by the temporary
illumination of t or C ,
accompanied by a message in the
Driver Information Centre.
Page 112 of 229

110Driving and operating
4. Unscrew protective cap from thefiller 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.
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.Automatic transmission
The automatic transmission permits
automatic gearshifting (automatic
mode) or manual gearshifting
(manual mode).
Manual shifting is possible in manual
mode by pressing M on the selector
wheel and shifting with the paddles
+ and - on the steering wheel.
Manual mode 3 112.
Transmission display
The mode or selected gear is shown
in the Driver Information Centre.
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112Driving and operatingManual modeManual mode M can be activated
from position D in each driving
situation and speed.
Press button M.
Pull steering wheel paddles to select
gears manually.
Pull right paddle + to shift to a higher
gear.
Pull left paddle - to shift to a lower
gear.
Multiple pulls allow gears to be
skipped.
The selected gear is indicated in the
instrument cluster.
If a higher gear is selected when
vehicle speed is too low, or a lower
gear when vehicle speed is too high,
the shift is not executed. This can
cause a message in the Driver
Information Centre.
In manual mode, no automatic
shifting to a higher gear takes place
at high engine revolutions.
Gear shift indication
The symbol Y or Z with a number
beside it is indicated when
gearshifting is recommended for fuel
saving reasons.
Shift indication appears only in
manual mode.
Electronic driving programmes
Following a cold start, the operatingtemperature programme increasesengine speed to quickly bring the
catalytic converter to the required
temperature.
Special programmes automatically
adapt the shifting points when driving
up inclines or down hills.In snowy or icy conditions or on other
slippery surfaces, the electronic
transmission control enables the
driver to select manually first, second or third gear for starting off.
Kickdown
Pressing down the accelerator pedal
beyond the kickdown detent will lead to maximum acceleration
independent of selected driving
mode. The transmission shifts to a lower gear depending on engine
speed.
Drive modes Four different drive modes are
selectable:
● Normal mode
● Comfort mode
● Sport mode
● Eco mode
Each drive mode corresponds to a
different vehicle setting.
Page 123 of 229

Driving and operating121
Activation of the functionalitySetting speed by the driver
Accelerate to the desired speed and
move thumb wheel once briefly to
SET/- . The current speed is stored
and maintained. Accelerator pedal
can be released.
The preset speed can then be
changed by moving thumb wheel to RES/+ to increase or SET/- to
decrease the speed. Move thumb wheel repeatedly to change speed in
small steps, move and hold to change speed in large steps.
Speed value is indicated in the Driver
Information Centre.
Adopting speed by the speed limit
recognition
The intelligent speed adaptation
informs the driver when a speed limit
is detected by the speed limit
recognition. The detected speed limit
can be used as new value for the
cruise control.
Using the camera at the top of the
windscreen, this system detects and
reads speed limit and end of speed
limit signs.
With active cruise control the
recognised speed limit will be
displayed in the Driver Information
Centre and MEM illuminates if the
difference between set speed and
speed limit is more than 9 km/h.
Press MEM on the steering wheel to
request saving of the suggested
speed.
Press MEM on the steering wheel
once more to confirm and save the
new speed setting.
This speed is the new value for the
cruise control.