Page 116 of 299

114Instruments and controlsElectronic Stability Control
off
n illuminates yellow.
The system is deactivated.
Electronic Stability Control
and Traction Control system
b illuminates or flashes yellow.
Illuminates A fault in the system is present.
Continued driving is possible. Driving
stability, however, may deteriorate depending on road surface
conditions.
Have the cause of the fault remedied
by a workshop.
Flashes
The system is actively engaged.
Engine output may be reduced and
the vehicle may be braked
automatically to a small degree.
Electronic Stability Control 3 174,
Traction Control system 3 173.Traction Control system off
k illuminates yellow.
The system is deactivated.
Preheating ! illuminates yellow.
Preheating is activated. Only
activates when outside temperature
is low.
Diesel particle filter
% illuminates or flashes yellow.
The diesel particle filter requires
cleaning.
Continue driving until %
extinguishes. If possible, do not allow engine speed to drop below
2000 rpm.
Illuminates The diesel particle filter is full. Start
cleaning process as soon as
possible.Flashes
The maximum filling level of the filter
is reached. Start cleaning process
immediately to avoid damage to the
engine.
Diesel particle filter 3 162, Stop-start
system 3 159.
AdBlue
Y flashes yellow.
AdBlue level is low. Refill AdBlue
soon to avoid prevention of the
engine start.
AdBlue 3 163.
Tyre pressure monitoring
system
w illuminates or flashes yellow.
Illuminates
Tyre pressure loss. Stop immediately
and check tyre pressure.
Page 122 of 299

120Instruments and controls
Submenus are:
■Shift indication : Current gear is
indicated inside an arrow. The
figure above recommends
upshifting for fuel saving reasons.
Eco index display : The current fuel
consumption is indicated on a segment display. For economical
driving, adapt your driving style to
keep the filled segments within the
Eco area. The more segments are
filled, the higher the fuel
consumption. Simultaneously the
current consumption value is
indicated.
■ Top Consumers : List of top comfort
consumers currently switched on is displayed in descending order. Fuel
saving potential is indicated. A
switched-off consumer disappears from the list and the consumption
value will be updated.
During sporadic driving conditions,
the engine will activate the heated
rear window automatically to
increase the engine load. In that
case, rear window heating is
indicated as one of the top
consumers, without activation by
the customer.■ Economy Trend : Displays the
average consumption development
over a distance of 50 miles. Filled
segments display the consumption
in 5 mile steps and shows the effect of topography or driving behaviour
on fuel consumption.
Page 128 of 299

126Instruments and controls
■ If seat belt is not fastened.
■ If a door or the tailgate is not fully closed when starting-off.
■ If a certain speed is exceeded with parking brake applied.
■ If adaptive cruise control deactivates automatically.
■ If approaching a vehicle ahead too closely.
■ If a programmed speed or speed limit is exceeded.
■ If a warning message or a warning code appears in the Driver
Information Centre (DIC).
■ If the parking assist detects an object.
■ If an unintended lane change occurs.
■ If reverse gear is engaged and the rear end carrier is extended.
■ If the diesel particle filter has reached the maximum filling level.
■ If AdBlue needs to be refilled.When the vehicle is parked and/ or the driver's door is opened ■ When the key is in the ignition switch.
■ With exterior lights on.
During an Autostop ■ If the driver's door is opened.
Battery voltage
When the vehicle battery voltage is running low, a warning message or
warning code 174 will appear in the
Driver Information Centre.
1. Switch off immediately any electrical consumers which are
not required for a safe ride, e.g.
seat heating, heated rear window or other main consumers.
2. Charge the vehicle battery by driving continuously for a while or
by using a charging device.
The warning message or warning
code will disappear after the engine
has been started two times
consecutively without a voltage drop.If the vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.
Page 149 of 299
Climate control147Climate controlClimate control systems ............. 147
Air vents ..................................... 153
Maintenance .............................. 155Climate control systems
Heating and ventilation
system
Controls for: ■ temperature
■ air distribution
■ fan speed
■ demisting and defrosting
Heated rear window Ü 3 32.
Temperature
red=warmblue=coldHeating will not be fully effective until
the engine has reached normal
operating temperature.
Air distributionl=to windscreen and front door
windowsM=to head area via adjustable air
ventsK=to foot well
All combinations are possible.
Fan speed
Adjust the air flow by switching the fan to the desired speed.
Demisting and defrosting ■ Press V: fan automatically
switches to higher speed, the air
distribution is directed towards the
windscreen.
■ Set temperature control to warmest
level.
■ Switch on heated rear window Ü.
■ Open side air vents as required and
direct them towards the door
windows.
Page 150 of 299

148Climate controlAir conditioning system
In addition to the heating and
ventilation system, the air
conditioning system has controls for:
n=cooling4=air recirculation
Heated seats ß 3 42, Heated
steering wheel * 3 97.
Cooling n
Press n to switch on cooling.
Activation is indicated by illumination
of the LED in the button. Cooling is
only functional when the engine is running and climate control fan is
switched on.
Press n again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) as soon as the
outside temperature is slightly above
the freezing point. Therefore
condensation may form and drip from
under the vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons. Activated cooling
may inhibit autostops.
Air recirculation system 4
Press 4 to activate air recirculation
mode. Activation is indicated by the
LED in the button.
Press 4 again to deactivate air
recirculation mode.9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling the air
humidity increases, so the
windows may mist up from inside.
The quality of the passenger
compartment air deteriorates,
which may cause the vehicle
occupants to feel drowsy.
In warm and very humid ambient air conditions, the windscreen may mist
up from outside, when cold air is
directed to it. If windscreen mists up
from outside, activate windscreen
wiper and deactivate l.
Maximum cooling Briefly open the windows so that hotair can disperse quickly.
■ Switch on cooling n.
■ Air recirculation system 4 on.
■ Press air distribution switch M.
■ Set temperature control to coldest level.
■ Set fan speed to highest level.
■ Open all vents.
Page 153 of 299

Climate control151
If the minimum temperature Lo is set,
the climate control system runs at
maximum cooling, if cooling n is
switched on.
If the maximum temperature Hi is set,
the climate control system runs at
maximum heating.
Notice
If n is switched on, reducing the set
cabin temperature can cause the
engine to restart from an Autostop or inhibit an Autostop.
Demisting and defrosting the
windows V
■ Press V. Activation is indicated by
illumination of the LED in the
button.
■ Temperature and air distribution are set automatically and the fan
runs at high speed.
■ Switch on heated rear window Ü.
■ To return to previous mode: press V , to return to Automatic mode:
press AUTO .
Setting of automatic rear window
heating can be changed in the
Settings menu in the Info-Display.
Vehicle personalisation 3 129.
Notice
If V is pressed while the engine is
running, an Autostop will be inhibited
until V is pressed again.
If l is pressed with the fan switched
on and the engine running, an
Autostop will be inhibited until l is
pressed again or until the fan is
switched off.If V is pressed while the engine is
in an Autostop, the engine will restart
automatically.
If l is pressed with the fan switched
on while the engine is in an
Autostop, the engine will restart
automatically.
Stop-start system 3 159.
Manual settings Climate control system settings can
be changed by activating the buttons
and rotary knobs as follows.
Changing a setting will deactivate the Automatic mode.
Page 157 of 299
Climate control155Maintenance
Air intake
The air intake in front of the
windscreen in the engine
compartment must be kept clear to
allow air intake. Remove any leaves,
dirt or snow.
Pollen filter
The pollen filter cleans dust, soot,
pollen and spores from the air
entering the vehicle through the air
intake.
Air conditioning regular
operation In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once a
month, irrespective of the weather
and time of year. Operation with
cooling is not possible when the
outside temperature is too low.
Service
For optimal cooling performance, it is recommended to annually check the
climate control system, starting
three years after initial vehicle
registration, including:
■ functionality and pressure test
■ heating functionality
■ leakage check
■ check of drive belts
■ cleaning of condenser and evaporator drainage
■ performance check
Page 159 of 299

Driving and operating157Starting 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 3 162.Ignition switch positions0=ignition off1=steering wheel lock released,
ignition off2=ignition on, for diesel engine:
preheating3=starting
Retained power off
The following electronic systems can
work until the driver's door is opened
or at the latest for 10 minutes after the
ignition is switched off:
■ power windows
■ power outlets
Power to the Infotainment system will continue to operate for 30 minutes or
until the key is removed from the
ignition switch, regardless of whether
any door is opened.
Starting the engine
Manual transmission: operate clutch.
Automatic transmission: operate
brake and move the selector lever to
P or N.
Do not operate the accelerator pedal.