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The segments in the speedometer indicate
which speed range is available.
RCruise control activated (Ypage 181):
The segments light up from the stored
speed to the type-tested maximum speed.
RDISTRONIC PLUS activated (Ypage 183):
One or two segments in the set speed
range light up.
RDISTRONIC PLUS detects a vehicle in front
that is driving at a slower speed than the
stored speed:
The segments between the speed of the
vehicle in front and the stored speed light
up.
Tachometer
!
Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached.
Outside temperature display
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
Bear in mind that the outside temperature
display indicates the temperature measured
and does not record the road temperature.
The outside temperature display is in the mul-
tifunction display (
Ypage 241).
Changes in the outside temperature are dis-
played after a short delay.
Coolant temperature display
GWARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
!A display message is shown if the coolant
temperature is too high.
If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolant temperature display is in the
lower section of the tachometer (
Ypage 33).
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 248 ‡ (120 †).
Operating the on-board computer
:Multifunction display
;Right control panel
=Left control panel
XTo activate the on-board computer: turn
the SmartKey to position 1in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using
Displays and operation239
On-board computer and displays
Z
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the buttons on the multifunction steering
wheel.
Left control panel
òROpens the menu list
9
:Press briefly:
RScrolls in lists
RSelects a menu or function
RIn theRadioorMediamenu:
opens the track or station list
and selects a station, an audio
track or a video scene
RIn the Telephonemenu:
switches to the phone book and
selects a name or a telephone
number
9
:Press and hold:
RScrolls quickly through all lists
RIn the RadioorMediamenu:
selects a station, audio track or
video scene using rapid scrolling
RIn the Telephonemenu: starts
rapid scrolling if the phone book is open
aRIn all menus: confirms the selec-ted entry in the list
RIn the RadioorMediamenu:
opens the list of available radio
sources or media
RIn the Telephonemenu:
switches to the phone book and
starts dialing the selected num-
ber
ñRVehicles with Audio 20:
Switches off voice-operated con-
trol for navigation (see manufac-
turer's operating instructions)
RVehicles with COMAND:
Switches off the Voice Control
System (see the separate oper-
ating instructions)
%Press briefly:
RBack
RIn the RadioorMediamenu:
deselects the track or station list
or list of available radio sources
or media
RHides display messages
RExits the telephone book/redial
memory
%Press and hold:
RCalls up the standard display in
the Trip
menu
Right control panel
~RRejects or ends a call
RExits the telephone book/redial
memory
6RMakes or accepts a call
RSwitches to the redial memory
W
XRAdjusts the volume
8RMute
óRVehicles with Audio 20:
Switches on voice-operated con-
trol for navigation (see manufac-
turer's operating instructions)
RVehicles with COMAND:
Switches on the Voice Control
System (see the separate oper-
ating instructions)
240Displays an doperation
On-boa rd computer and displays
Page 243 of 418

Multifunction display
:Drive program (Ypage 163)
;Transmission position (Ypage 164)
=Additional speedometer (Ypage 255)
?Display
ATime
BOutside temperature
Display panel =shows the selected menu or
submenu and display messages.
XTo open the menu list: press theò
button on the steering wheel.
Display panel =appears in the menu list.
Possible displays in the multifunction dis-
play:
RZ Gearshift recommendation, when shifting
manually (
Ypage 167)
Rj Active Parking Assist (Ypage 201)
RCRUISECruise control (Ypage 181)
R_ Adaptive Highbeam Assist
(
Ypage 127)
Rè ECO start/stop function
(
Ypage 158)
Rë HOLD function (Ypage 194)
RaDISTRONIC PLUS Steering Assist and
Stop&Go Pilot (
Ypage 192)
Head-up display
General notes
The head-up display projects information
from the navigation system and the driver
assistance system above the dashboard into
the driver's field of vision.
A requirement for the display of the contents
is that the following functions are available in
the vehicle and are switched on:
RCruise control
RDISTRONIC PLUS
RTraffic Sign Assist
RNavigation
The head-up display allows the driver to see
all of the information without having to take
his eyes off the road.
Important safety notes
The head-up display is only an aid and is not a
substitute for attentive driving.
The visibility of the head-up display is influ-
enced by the following conditions:
Rthe driver's seat position
Rthe positioning of the display image
Rthe general ambient light
Rsunglasses with polarization filters
Rwet roads
Rblocking of sunlight by objects on the dis-
play cover
In the event of extreme sunlight, sections of
the display may fade. This can be reversed by
switching the head-up display off and on
again.
iVehicles with the head-up display are
equipped with a special windshield. Should
repairs be necessary, have the windshield
replaced at a qualified specialist workshop.
Displays and operation241
On-board computer and displays
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Page 244 of 418
Displaysan doperation
Switching th ehead-up display on/of f
XPress button:.
Whe nth ehead-up display is switched on ,
th edisplay appears in th edriver's field of
vision .
242Displays and operation
On-board computer and displays
Page 245 of 418

Standard displays in the head-up display
The head-up display shows the following contents and information:
:Navigation messages
;Current speed
=Selected DISTRONIC PLUS speed (Ypage 183)
Cruise control set speed (
Ypage 181)
?Detected traffic signs
Setting options
You can adjust the following settings in the
head-up display submenu:
Radjust the position of the head-up display
on the windshield (
Ypage 254)
Radjust the brightness of the displays in the head-up display (
Ypage 255)
Rselect desired displays in the head-up dis-
play (
Ypage 254)
Using the Display Content
function, you
can, depending on your vehicle's equip-
ment, choose between four standard dis-
plays. The selected contents then appear in
the head-up display.
If you select a display with traffic signs,
detected traffic signs from Traffic Sign
Assist appear in the head-up display.
Menus and submenus
Menu overview
Press the òbutton on the steering wheel
to open the menu list.
Operating the on-board computer
(
Ypage 239).
Depending on the vehicle equipment, you can
select the following menu:
RTripmenu (Ypage 244)
RNavimenu (navigation instructions)
(
Ypage 246)
RRadiomenu (Ypage 248)
RMediamenu (Ypage 248)
RTelephonemenu (Ypage 250)
RAssistance Graphicmenu
(
Ypage 251)
RServicemenu (Ypage 252)
RSettingsmenu (Ypage 252)
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On-board computer and displays
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Trip menu
Standard display
XPress and hold the %button on the
steering wheel until the Trip
menu with
trip odometer :and odometer ;
appears.
Displaying the range and current fuel
consumption
XPress the òbutton on the steering
wheel to open the menu list.
XPress :or9 on the steering wheel
to select the Trip
menu.
XPress9or: to select the display
with approximate range :and current fuel
consumption ;.
Approximate range :that can be covered
is calculated according to your current driv-
ing style and the amount of fuel in the tank.
If there is only a small amount of fuel left in
the fuel tank, a vehicle being refueled C
appears instead of approximate range :.Recuperation display
=shows you if
energy has been recuperated from the
kinetic energy in overrun mode and saved
in the battery. Recuperation display =
depends on the engine installed and is
therefore not available in all vehicles.
ECO display
XPress òon the steering wheel to open
the menu list.
XPress the :or9 button on the steer-
ing wheel to select the Trip
menu.
XConfirm by pressingaon the steering
wheel.
XPress the :or9 button to select
ECO display.
If the ignition remains switched off for longer
than four hours, the ECO display will be auto- matically reset.
For more information on the ECO display, see
(
Ypage 177).
244Menus and submenus
On-board computer and displays
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Trip computer "From Start" or "From
Reset"
:Distance
;Driving time
=Average speed
?Average fuel consumption
XPress theòbutton on the steering
wheel to open the menu list.
XPress :or9 on the steering wheel
to select the Trip
menu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select From Start
orFrom Reset.
The values in the From Start
submenu are
calculated from the start of a journey, while
the values in the From Reset
submenu are
calculated from the last time the submenu
was reset (
Ypage 245).
In the following cases the trip computer is
automatically reset From Start
:
Rthe ignition has been switched off for more
than four hours.
R999 hours have been exceeded.
R9,999 miles have been exceeded.
When 9,999 hours or 99,999 miles have been
exceeded, the trip computer is automatically
reset From Reset
.
Digital speedometer
XPress òon the steering wheel to open
the menu list.
XPress the :or9 button on the steer-
ing wheel to select the Trip
menu.
XConfirm by pressingaon the steering
wheel.
XPress the :or9 button to select the
digital speedometer.
Resetting values
XPress the òbutton on the steering
wheel to open the menu list.
XPress the :or9 button on the steer-
ing wheel to select the Trip
menu.
XConfirm by pressingaon the steering
wheel.
XPress the :or9 button to select the
function that you wish to reset.
XPress the abutton.
XPress :to select Yesand confirm with
a.
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You can reset the values of the following func-
tions:
RTrip odometer
R"From Start" trip computer
R"From Reset" trip computer
RECO display
If you reset the values in the ECO display, the
values in the "From Start" trip computer are
also reset. If you reset the values in the "From
Start" trip computer, the values in the ECO
display are also reset.
Navigation system menu
Displaying navigation instructions
In the Navimenu, the multifunction display
shows navigation instructions.
Additional information on navigation can be
found in the separate Audio 20 or COMAND
operating instructions.
XSwitch on Audio 20 or COMAND, see the
separate operating instructions.
XPress the òbutton on the steering
wheel to open the menu list.
XPress :or9 on the steering wheel
to select the Navi
menu.
XConfirm by pressing aon the steering
wheel.
Route guidance not active
:Direction of travel
;Current road
Route guidance active
No change of direction announced
:Distance to the next destination
;Estimated arrival time
=Distance to the next change of direction
?Current road
Change of direction announced with a
lane recommendation
:Road into which the change of direction
leads
;Distance to the change of direction
=Change-of-direction symbol
?Recommended lane and new lane during a
change of direction (white)
APossible lane
BLane not recommended (dark gray)
On multilane roads, new lane recommenda-
tions can be displayed for the next change of
direction if the digital map supports this data.
During the change of direction, new lanes
may be added.
246Menus and submenus
On-board computer and displays