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90Instruments and controlsPreheating and diesel
particle filter ! illuminates or flashes yellow.
Illuminates Preheating activated. Only activates
when outside temperature is low.
Flashes Control indicator ! flashes if the
diesel particle filter requires cleaning
and previous driving conditions did
not permit automatic cleaning.
Continue driving and if possible do
not allow engine speed to drop below
2000 rpm.
The control indicator ! goes off as
soon as the self-cleaning operation is complete.
Diesel particle filter 3 127.
Deflation detection system
and tyre pressure
monitoring system
w illuminates or flashes red or yellow.Control indicator illuminates red
Tyre pressure loss. Stop immediately
and check tyre pressure. A maximum speed of 50 mph is permitted for run-
flat tyres 3 172.
Control indicator illuminates
yellow
Fault in system or tyre without
pressure sensor mounted (e.g. spare
wheel). Consult a workshop.
Flashes
Flashes three times to indicate system initialisation.
Deflation detection system 3 175,
tyre pressure monitoring system
3 174.
Interactive driving system, continuous damping
control, sport mode IDS+ illuminates yellow.
Illuminates for approximately
10 seconds after the driver's door is
opened. Illumination whilst drivingindicates a fault in the system. The
system switches to the harder chassis setting for reasons of safety. Have the
cause of the fault remedied by a workshop.
IDS Plus
3 140, Continuous damping
control 3 141, Sport mode 3 140.
Engine oil pressure I illuminates red.
Illuminates when the ignition is
switched on and goes out shortly after
the engine starts.
Illuminates when the engine isrunningCaution
Engine lubrication may be
interrupted. This may result in
damage to the engine and/or
locking of the drive wheels.
1. Depress clutch.
2. Select neutral gear, set selector lever to N.
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Instruments and controls91
3. Move out of the flow of traffic asquickly as possible without
impeding other vehicles.
4. Switch off ignition.9 Warning
When the engine is off,
considerably more force is needed
to brake and steer.
Do not remove key until vehicle is stationary, otherwise the steering
wheel lock could engage
unexpectedly.
Check oil level before seeking the
assistance of a workshop 3 153.
Low engine oil level
S illuminates yellow.
Engine oil level is checked
automatically.
Illuminates when the engine is
running
Low engine oil level. Check engine oil
level and top up as necessary
3 153.
Low fuel Y illuminates or flashes yellow.
Illuminates Level in fuel tank too low.
Flashes
Fuel used up. Refuel immediately.
Never run the tank dry.
Catalytic converter 3 128.
Bleeding the diesel fuel system
3 157.
Open&Start system
0 illuminates or flashes yellow.
Flashes The electronic key is no more within
the reception range of the vehicle interior. The engine cannot bestarted. Hold the Start/Stop button
depressed a bit longer to switch off
the ignition.
or
Failure of the electronic key.
Operation is yet only possible via
emergency operation.
Illuminates
Fault in system. Try to operate with
the spare key, the remote control or
through emergency operation. Hold
the Start/Stop button depressed a bit
longer to switch off the ignition. Seek the assistance of a workshop.
or
The steering wheel lock is still
engaged. Move the steering wheel
slightly and press the Start/Stop
button.
Open&Start system 3 28.
Apply footbrake
j illuminates yellow.
Page 96 of 217
94Instruments and controls
Select using the left adjuster wheel onthe steering wheel:
Press the adjuster wheel to open the
BC menu. In the BC menu press to
operate the stop watch or restart
measurement and calculation.
Turn the adjuster wheel to call up the required function.
System settings
Press the Settings button of the
Infotainment system. Menu item
Audio then opens.
Call up System with the left arrow
button and select with the OK button.
Automatic time synchronisation
The RDS signal of most VHF
transmitters automatically sets the
time. This can be identified by } in the
display.
Some transmitters do not send a
correct time signal. In such cases, we recommend to switch off automatic
time synchronisation.
Deactivate ( Clock Sync.Off ) or
activate ( Clock Sync.On ) automatic
time synchronisation with the arrow
buttons.
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96Instruments and controlsGraphic-Info-Display,
Colour-Info-Display
Displays time, outside temperature,
date or Infotainment system (when it
is on) and electronic climate control
system.
The Color-Info-Display displays the
information in colour.
The type of information and how it is
displayed depend on the equipment
of the vehicle and the settings made.
Selecting functions
Functions and settings of the
Infotainment system and electronic
climate control system are accessed via the display.
Selections are made via the menus
and buttons, the multifunction control
of the Infotainment system or the left
adjuster wheel of the steering wheel.
Selecting with the Infotainment
system buttonsSelect menu items via the menus and
using the Infotainment system
buttons. The OK button is used to
select the highlighted item or confirm
a command.
To exit a menu, press the right or left arrow button until Return or Main
appear and select.
Selecting with the multifunction
control
Turn the multifunction control to
highlight menu items or commands
and to select function areas.
Page 99 of 217
Instruments and controls97
Press the multifunction control to
select the highlighted item or confirm
a command.
To exit a menu, turn the multifunction control until Return or Main appear
and select.
Selecting with the left adjuster wheel
on the steering wheel
Turn to select a menu item.
Press the adjuster wheel to select the
highlighted item or confirm a
command.
Function areas
For each function area there is a main
page (Main), which is selected at the
top edge of the display (not with
Infotainment system CD 30 or the
Mobile Phone Portal):
■ Audio,
■ Navigation,
■ Telephone,
■ Trip computer.
System settings
Press the Main button of the
Infotainment system.
Press the Settings button on the
Infotainment system. For
Infotainment system CD 30, no menu may be selected.
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102Instruments and controls
If there is a considerable loss of
pressure, a corresponding message
appears indicating the tyre.
Steer out of flow of traffic as quickly as possible without endangering
other vehicles. Stop and check the
tyres. Mount the spare wheel 3 180.
If run-flat tyres are fitted, maximum
speed is 50 mph. Information 3 172.
Tyre pressure monitoring system
3 174.
Washer fluid level
Low washer fluid level. Top up
washer fluid 3 155.
Trip computer
Trip computer in Board-Info-Display
Access the data by pressing the BC
button on the Infotainment system or
the left adjuster wheel on the steering wheel.
Some information appears in the
display in an abbreviated form.
Once an audio function has been
selected, the lower row of the trip
computer function is displayed
furthermore.Instantaneous consumption
Displays the instantaneous
consumption. At low speeds,
consumption per hour is displayed.
Average consumption
Displays average consumption. The
measurement can be reset at any
time.
Absolute consumption
Displays fuel consumed. The
measurement can be reset at any
time.
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Instruments and controls103
Average speed
Displays average speed. The
measurement can be reset at any
time.
Stoppages in the journey with the
ignition off are not included in the
calculations.
Distance Displays distance travelled. The
measurement can be reset at any
time.
RangeRange is calculated from current fuel
tank content and current
consumption. The display shows
average values.
After refuelling, the range updates automatically after a brief delay.
When the fuel level in the tank is low,
the message Range appears in the
display.
When the fuel tank is nearly empty,
the message Refuel! appears in the
display.
Stop watchSelect the function. Press the OK
button or the left adjuster wheel on the
steering wheel to start or stop the stop watch.
Restart trip computer
The measurement or calculation of
the following trip computer
information can be restarted:
■ Average consumption,
■ Absolute consumption,
■ Average speed,
■ Distance,
■ Stop watch.
Select the desired trip computer
information 3 93 . To restart, press the
OK button or the left adjuster wheel
on the steering wheel for approx.
2 seconds.
Page 106 of 217

104Instruments and controlsTrip computer in Graphic-
Info-Display or Colour-
Info-Display
The main page of the trip computer
provides information on range,
current consumption and average
consumption of BC 1.
To display other trip computer data, press the BC button on the
infotainment system, select the trip
computer menu from the display or
press the left adjuster wheel on the
steering wheel.
Select BC 1 or BC 2 from the trip
computer menu.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,
the message Range appears in the
display.
When the fuel tank is nearly empty,
the message Please refuel! appears
in the display.
The navigation system will support
you in finding the nearest gas station. See Infotainment manual for further
information.
Instantaneous consumption Display of the instantaneous
consumption. At low speeds,
consumption per hour is displayed.