Page 105 of 271
Instruments and controls103Vehicle messages
Messages are indicated mainly in the
Driver Information Centre, in some
cases together with a warning chime.
Press SET/CLR , MENU or turn the
adjuster wheel to confirm a message.
Vehicle messages on Midlevel
display
The vehicle messages are displayed
as code numbers.
No.Vehicle message1Change engine oil3Engine coolant level low4Air conditioning off5Steering wheel is locked7Turn steering wheel, switch
ignition off and then onNo.Vehicle message9Turn steering wheel, start
engine again12Vehicle overloaded13Compressor overheated15Centre high-mounted brake
light failure16Brake light failure17Headlight levelling malfunction18Left low beam failure19Rear fog light failure20Right low beam failure21Left sidelight failure22Right sidelight failure23Reversing light failure24Number plate light failure25Left front turn light failure26Left rear turn light failure27Right front turn light failure
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104Instruments and controlsNo.Vehicle message28Right rear turn light failure29Check trailer brake light30Check trailer reversing light31Check left trailer turn light32Check right trailer turn light33Check trailer rear fog light34Check trailer rear light35Replace battery in radio remote
control48Clean side blind spot alert
system49Lane departure warning
unavailable53Tighten fuel filler cap54Water in diesel fuel filter55Exhaust filter is full 3 14056Tyre pressure imbalance on
front axleNo.Vehicle message57Tyre pressure imbalance on rear axle58Tyres without pressure sensors
detected59Open then close driver window60Open then close front
passenger window65Theft attempted66Service anti-theft alarm system67Service steering wheel lock68Service power steering75Service air conditioning76Service side blind spot alert
system79Top up engine oil81Service transmission82Change engine oil soon84Engine power reduced89Service vehicle soonNo.Vehicle message90Service brake assist94Shift to park before exiting95Service airbag128Bonnet open134Parking assist fault, clean
bumper136Service parking assist145Check washer fluid level151Press clutch to start174Low vehicle battery258Parking assist off
Vehicle messages on Uplevel
display
The vehicle messages are displayed as text. Follow the instructions given
in the messages.
Page 125 of 271

Climate control123Climate controlClimate control systems.............123
Heating and ventilation system 123
Air conditioning system ...........124
Electronic climate control system .................................... 126
Air vents ..................................... 131
Adjustable air vents .................131
Fixed air vents ......................... 131
Maintenance .............................. 131
Air intake ................................. 131
Air conditioning regular operation ................................ 132
Service .................................... 132Climate control systems
Heating and ventilation system
Controls for: ● temperature
● fan speed
● air distribution
Heated rear window Ü 3 33.
Heated windscreen 3 34.
Heated seats ß 3 40.
Heated steering wheel * 3 76.
Temperaturered:warmblue:cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Fan speed
Adjust the air flow by switching the fan
to the desired speed.
Air distribution
M:to head areaL:to head area and foot wellK:to foot well and windscreenJ:to windscreen, front door
windows and foot welll:to windscreen and front door
windows
Intermediate settings are possible.
Page 126 of 271

124Climate controlDemisting and defrosting the
windows
● Set temperature control to warmest level.
● Set fan speed to highest speed.
● Set air distribution control to l.
● Switch on heated rear window Ü.
● Open side air vents as required and direct them towards door
windows.
● For simultaneous warming of the
foot well, set air distribution
control to J.
Air conditioning system
Controls for:
● temperature
● fan speed
● air distribution
n:cooling4:air recirculationÜ:heated rear window 3 33
Heated windscreen 3 34.
Heated seats ß 3 40.
Heated steering wheel * 3 76.
Temperaturered:warmblue:cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Fan speed
Adjust the air flow by switching the fan
to the desired speed.
Air distribution
M:to head areaL:to head area and foot wellK:to foot well and windscreenJ:to windscreen, front door
windows and foot welll:to windscreen and front door
windows (air conditioning is
activated in the background to
help preventing windows from
fogging)
Intermediate settings are possible.
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Climate control125Cooling n
Press n
to switch on cooling. The
LED in the button illuminates to
indicate activation. 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.
Stop-start system 3 136.
Air recirculation system 4
Press 4 to activate air recirculation
mode. The LED in the button
illuminates to indicate activation.
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 towards it. If windscreen
mists up from outside, activate
windscreen wiper and deactivate l.
Maximum cooling
Briefly open the windows so that hot
air can disperse quickly.
Page 131 of 271

Climate control129Fan speed Z
Turn left rotary knob to decrease or
increase fan speed. The fan speed is
indicated in the Info Display.
Turning knob to $: fan and cooling
are switched off.
To return to automatic mode: Press AUTO .
Air distribution
Turn right rotary knob for desired
adjustment. Setting is indicated in the Info Display.
K:to foot well and windscreen9:to windscreen, front door
windows and foot wells:to windscreen and front door
windows (air conditioning is
activated in the background to
help preventing windows from
fogging)M:to head area via adjustable air ventsL:to head area and foot wellReturn to Automatic air distribution:
press AUTO .
Cooling n
Press n to switch on cooling. The
LED in the button illuminates to
indicate activation. 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.
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132Climate controlAir conditioning regularoperation
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
Note
Refrigerant R-134a contains
fluorinated greenhouse gases.
Page 140 of 271

138Driving and operatingOtherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop. See
'Climate control' chapter for further
information 3 126.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 134.
Vehicle battery discharge protection To ensure reliable engine restarts,
several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Power saving measures
During an Autostop, several electrical
features, e.g. the rear window
heating, are disabled or switched into a power saving mode. The fan speed
of the climate control system is
reduced to save power.
Restart of the engine by the driverVehicles with manual transmission
Depress the clutch pedal to restart the
engine.When the engine is restarted, control
indicator D in the Driver Information
Centre extinguishes.
If the selector lever is shifted out of
neutral before depressing the clutch
pedal first, control indicator -
illuminates or is shown as a symbol in
the Driver Information Centre.
Control indicator - 3 93.Vehicles with manual transmission
automated
Release the brake pedal or move
selector lever out of D to restart the
engine.
When the engine is restarted, control
indicator D in the Driver Information
Centre extinguishes.
Restart of the engine by the stop-
start system
The selector lever must be in neutral
to enable an automatic restart.
If one of the following conditions occurs during an Autostop, the
engine will be restarted automatically
by the stop-start system:
● The stop-start system is manually deactivated.
● The bonnet is opened.
● The driver's seat belt is unfastened and the driver's door
is opened.
● The engine temperature is too low.
● The charging level of the vehicle battery is below a defined level.
● The brake vacuum is not sufficient.
● The vehicle is driven at least at walking speed.
● The climate control system requests an engine start.
● The air conditioning is manually switched on.
If the bonnet is not fully closed, a
warning message is displayed in the
Driver Information Centre.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during restart might be noticeable.