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Instruments and controls93
IlluminatesLevel in fuel tank is too low.
Flashes
Fuel used up. Refuel immediately.
Never run the tank dry.
Catalytic converter 3 140.
Bleeding the diesel fuel system
3 187.
Immobiliser d flashes yellow.
Fault in the immobiliser system. The
engine cannot be started.
Exterior light
8 illuminates green.
The exterior lights are on 3 110.
High beam C illuminates blue.
Illuminates when high beam is on or
during headlight flash 3 111 , or when
high beam is on with high beam assist
or intelligent light range 3 114.High beam assist
l illuminates green.
The high beam assist or intelligent
light range is activated 3 112,
3 114.
Adaptive forward lighting
f illuminates or flashes yellow.
Illuminates Fault in system.
Seek the assistance of a workshop.
Flashes
System switched to symmetrical low
beam.
Control indicator f flashes for approx.
4 seconds after the ignition is switched on as a reminder that the
system has been activated 3 113.
Automatic light control 3 111.
Fog light > illuminates green.
The front fog lights are on 3 118.Rear fog light
r illuminates yellow.
The rear fog light is on 3 118.
Cruise control
m illuminates white or green.
Illuminates white
The system is on.
Illuminates green
Cruise control is active.
Cruise control 3 151.
Vehicle detected ahead
A illuminates green.
A vehicle ahead is detected in the
same lane.
Forward collision alert 3 154.
Door open h is indicated as symbol in the Driver
Information Centre when a door or the
boot lid is open.
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102Instruments and controls
■ If a warning message appears inthe Driver Information Centre.
■ If the parking assist detects an object.
■ If unintended lane change occurs.
■ 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 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 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.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 20.
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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Instruments and controls107
Remote door unlock: Changes the
configuration to unlock only the
driver's door or the whole vehicle
whilst unlocking.
Auto relock doors : Activates or
deactivates the automatic relock
function after unlocking without
opening the vehicle.
■ Restore factory settings
Restore factory settings : Resets all
settings to the default settings.
Display settings
Selectable display settings:
■ Day mode : Optimisation for
daylight conditions.
■ Night mode : Optimisation for
darkness.
■ Automatic mode : The display
changes mode when the vehicle
lights are switched on/off.
■ Rear view camera : Changes the
settings for the rear view camera.
■ Picture frame : See description for
Infotainment system in the
Infotainment system manual.Settings in the Colour-Info-
Display CD 600/Navi 650/Navi 950
Press the CONFIG button on the
Infotainment system faceplate to
enter the Configuration menu.
Turn the multifunction knob to scroll
upwards or downwards in the list.
Press the multifunction knob
(Navi 950 / Navi 650: press the outer
ring) to select a menu item.
■ 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.
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108Instruments and controls
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 3 165.
■ 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 level
of the cabin airflow of the climate
control in automatic mode.
Air Conditioning Mode : Controls the
state of the cooling compressor
when the vehicle is started. Last
setting (recommended) or at
vehicle start either always ON or
always OFF.
Auto Rear Demist : Activates
heated rear window automatically.
■ Comfort and Convenience
Chime Volume : Change the volume
of warning chimes.
Personalisation by Driver :
Activates or deactivates the
personalisation function.
■ Collision Detection Systems
Park Assist : Activate or deactivate
the ultrasonic sensors.
Side Blind Zone Alert : Activates or
deactivates the side blind spot alert system.■ Lighting
Vehicle Locator Lights : Activate or
deactivate the entry lighting.
Exit Lighting : Activate or deactivate
and change the duration of exit lighting.
■ Power Door Locks
Open Door Anti Lock Out : Activate
or deactivate the automatic door
locking function while a door is
open.
Auto Door Lock : Activates or
deactivates the automatic door unlocking function after switching
off ignition. Activates or deactivates
the automatic door locking function after driving-off.
Delay Door Lock : Activate or
deactivate the delayed door locking
function.
■ Remote Lock/Unlock/Start
Remote Lock Feedback : Activate
or deactivate the hazard warning
light feedback whilst locking.
Remote Unlock Feedback : Activate
or deactivate the hazard warning flasher feedback whilst unlocking.
Page 112 of 247
110LightingLightingExterior lighting.......................... 110
Interior lighting ........................... 119
Lighting features ........................121Exterior lighting
Light switch
Turn light switch:
7=lights off8=sidelights9=headlights
Control indicator 8 3 93.
Light switch with Automatic light
control
Turn light switch:
AUTO=automatic light control:
Headlights are switched
on and off automatically
depending on external
lighting conditions.m=activation or deactivation
of the automatic light
control. Switch turns back
to AUTO .8=sidelights9=headlights
Page 113 of 247

Lighting111
The current status of automatic light
control is displayed In the Driver
Information Centre.
When switching on the ignition,
automatic light control is active.
When headlights are on, 8
illuminates. Control indicator 8
3 93.
Tail lights
Tail lights are illuminated together
with headlights and sidelights.
Additional lights in the boot lid frame
Additional tail light assemblies,
existing of tail lights and hazard
warning flasher lights, are located in
the boot lid frame. They are
illuminated when lights are activated
and the boot lid is open. Additional tail
lights are only intended as position
lights when the boot lid is open. They are not to be used when driving.Automatic light control
When 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 3 114.
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 headlights
are switched on immediately.
Adaptive forward lighting 3 114.
High beam
To switch from low to high beam,
push lever.
To switch to low beam, push lever
again or pull.
Page 114 of 247

112LightingHigh beam assistThis feature allows high beam to
function as the main driving light at
night and when vehicle speed is
faster than 25 mph.
It switches to low beam when: ■ a sensor detects the lights of oncoming or preceding vehicles
■ the vehicle speed is slower than 12 mph
■ it is foggy or snowy
■ driving in urban areas
If there are no restrictions detected,
the system switches back to high
beam.Activation
The high beam assist is activated by
pushing the indicator lever twice at a
speed above 25 mph.
The green control indicator l
illuminates continuously when the
assist is activated, the blue one 7
illuminates when high beam is on.
Control indicator l 3 93.
Deactivation
Push indicator lever once. It is also deactivated when front fog lights are
switched on.
If a headlight flash is activated when the high beam is on, the high beam assist will be deactivated.
If a headlight flash is activated when the high beam is off, the high beam
assist will remain activated.
The latest setting of the high beam
assist will remain after the ignition is
switched on again.
Headlight flash To activate the headlight flash, pull
lever.
Page 115 of 247

Lighting113Headlight range
adjustment
Manual headlight range
adjustment
To adapt headlight range to the
vehicle load to prevent dazzling: turn
thumb wheel ? to required position.
0=front seats occupied1=all seats occupied2=all seats occupied and load
compartment laden3=driver's seat occupied and load
compartment laden.Dynamic automatic headlight
levelling 3 114.
Headlights when driving
abroad
The asymmetrical headlight beam
extends visibility at the edge of the
road at the passenger side.
However, when driving in countries
where traffic drives on the opposite
side of the road, adjust the headlights
to prevent dazzling of oncoming
traffic.
Vehicles with halogen headlight system The headlights do not have to beadjusted.Vehicles with Xenon headlight
system
1. Key in ignition switch.
2. Pull turn signal lever and hold (headlight flash).
3. Switch on ignition.
4. After approx. 5 seconds the control indicator f starts flashing
and an acoustic signal sounds.
Control indicator f 3 93.
Every time the ignition is switched on,
f flashes as a reminder for approx.
4 seconds.