Page 131 of 329

Instruments and controls129
Vehicle messages on the
Colour-Info-Display Some important messages appear
additionally in the
Colour-Info-Display. Press the
multifunction knob to confirm a
message. Some messages only pop
up for a few seconds.
Warning chimes
When starting the engine or
whilst driving
Only one warning chime will sound at a time.
The warning chime regarding
unfastened seat belts has priority
over any other warning chime.
■ 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 a programmed speed is exceeded.■ If a warning message or a warningcode appears in the Driver
Information Centre.
■ If the parking assist detects an object.
■ If unintended lane change occurs.
■ If the reverse gear is engaged and the rear end carrier extended.
■ If the diesel particle filter has reached the maximum filling level.
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 electric 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 twice consecutively
without a voltage drop.
If the vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.
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132Instruments and controls
Range
Range is calculated from current fuel
tank content and current
consumption. The display shows
average values.
After refuelling, the range is updated
automatically after a brief delay.
When the fuel level in the tank is low,
a message appears on vehicles with
Uplevel-Display or Uplevel-Combi-
Display.
When the tank has to be refuelled
immediately, a warning code or
warning message is displayed on
vehicles with Midlevel- and Uplevel-
Display or Uplevel-Combi-Display.
Additionally the control indicator i in
the fuel gauge illuminates or flashes
3 118.
Average consumption
Display of average consumption. The measurement can be reset at any
time and starts with a default value.
To reset, press the SET/CLR button
for a few seconds.Instantaneous consumption
Display of the instantaneous
consumption.
Average speed
Display of average speed. The
measurement can be reset at any
time.
To reset, press the SET/CLR button
for a few seconds.
Digital speed
Digital display of the instantaneous
speed.
Traffic sign assistant
Indicates detected traffic signs for the current route section 3 206.
Route guidance
Additionally to the navigation
information in the Color-Info-Display,
route guidance is displayed in the
Driver Information Centre.Vehicle personalisation
The vehicle's behaviour can be
personalised by changing the settings in the Info-Display.
Some of the personal settings for
different drivers can be memorised
individually for each vehicle key.
Memorised settings 3 23.
Depending on vehicle equipment and
country-specific regulations some of
the functions described below may
not be available.
Some functions are only displayed or
active when the engine is running.
Personal settings in the
Graphic-Info-Display
CD 300/CD 400/CD400plus
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138Instruments and controls
■Sport Mode Profile
■ Languages
■ Time and Date
■ Radio Settings
■ Phone Settings
■ Navigation Settings
■ Display Settings
■ Vehicle Settings
In the corresponding submenus the
following settings can be changed:
Sport Mode Profile
■ Engine Sport Performance :
Accelerator pedal and gear change
characteristics become more
responsive.
■ Sport Mode Back Lighting :
Change of instrument illumination
colour.
■ Sport Suspension : Damping
becomes harder.
■ Sport Steering : Steering support is
reduced.
Languages
Selection of the desired language.
Time and Date
See Infotainment system manual for
further information.
Radio Settings
See Infotainment system manual for
further information.
Phone Settings
See Infotainment system manual for
further information.Navigation Settings
See Infotainment system manual for
further information.
Display Settings ■ Home Page Menu :
See Infotainment system manual
for further information.
■ Rear Camera Options :
Press to adjust the rear camera
options 3 204.
■ Display Off :
See Infotainment system manual
for further information.
■ Map Settings :
See Infotainment system manual
for further information.
Vehicle Settings ■ Climate and Air Quality
Auto Fan Speed : Modifies the fan
regulation. Changed setting will be active after switching the ignition off
and on again.
Air Conditioning Mode : Activates or
deactivates cooling when switching
Page 143 of 329

Lighting141
In the Driver Information Centre with
Uplevel-Display or Uplevel-Combi-
Display, the current status of the
automatic light control is displayed.
When switching on the ignition,
automatic light control is active.
When low beam is on, 8 lights up.
Control indicator 8 3 118.
Tail lights
Tail lights are illuminated together
with low/high beam and sidelights.
Automatic light controlWhen the automatic light control
function is switched on and the
engine is running, the system
switches between daytime running
light and headlights automatically
depending on the lighting conditions
and information given by the rain
sensor system.
Daytime running light 3 143.
Automatic headlight activation
During poor lighting conditions the
headlights are switched on.
Furthermore the headlights are
switched on if the windscreen wipers
have been activated for several
wipes.
Tunnel detection When a tunnel is entered the
headlights are switched on
immediately.
Adaptive forward lighting 3 143.High beam
To switch from low to high beam,
push lever.
To switch to low beam, push lever
again or pull.
High beam assist This feature allows high beam as
main driving light by night and when
vehicle speed is faster than 25 mph.
Page 155 of 329
Climate control153Climate controlClimate control systems ............. 153
Air vents ..................................... 160
Maintenance .............................. 161Climate control systems
Heating and ventilation
system
Controls for: ■ Temperature
■ Air distribution
■ Fan speed
■ Demisting and defrosting
Heated rear window Ü 3 35.
Temperature
red=warmblue=coldHeating will not be fully effective until
the engine has reached normal
operating temperature.
Air distributions=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.
Page 156 of 329
154Climate control
Demisting and defrosting
■Press button 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.
Air 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 47, Heated
steering wheel * 3 101.
Cooling n
Press button
n to switch on cooling.
Activation is indicated by the LED in
the button. Cooling is only functional
when the engine is running and
climate control fan is switched on.
Press button 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.
Page 158 of 329

156Climate control
Demisting and defrosting the
windows V
■
Press button V: fan automatically
switches to higher speed, the air distribution is directed towards the
windscreen.
■ Switch cooling n on.
■ 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.
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 3 165.
Electronic climate control
system
The dual zone climate control allows
different climatisation temperatures
for driver and front passenger side.
In Automatic mode temperature, fan
speed and air distribution are
regulated automatically.
Controls for:
■ Temperature on driver side■ Air distribution
■ Fan speed
■ Temperature on front passenger side
n=coolingAUTO=automatic mode4=manual air recirculationV=demisting and defrosting
Heated rear window Ü 3 35, Heated
seats ß 3 47, Heated steering wheel
* 3 101.
Page 159 of 329
Climate control157
Each change of settings is shown in
the Info-Display for a few seconds.
The electronic climate control system
is only fully operational when the
engine is running.
Automatic mode AUTO
Basic setting for maximum comfort:
■ Press AUTO button, the air
distribution and fan speed are
regulated automatically.
■ Open all air vents to allow optimised air distribution in
automatic mode.
■ Press n to switch on optimal
cooling and demisting. Activation is indicated by the LED in the button.
■ Set the preselected temperatures for driver and front passenger using
the left and right rotary knob.
Recommended temperature is
22 °C.
The fan speed regulation in automatic mode can be changed in the menu
Settings .
Vehicle personalisation 3 132.
Temperature preselection
Set temperatures to the desired
value.