Setting the time and date
The vehicle must be stationary. Use the buttonsin the instrument cluster.
XPress Èto select the Settingsmenu.
XPress3to select the time and date display.
XPress forg to set the hours and press 3
to confirm.
XPress forg to set the minutes and press
3 to confirm.
XPress forg to set the day and press 3to
confirm.
XPress forg to set the month and press 3
to confirm.
XPress forg to set the year and press 3to
confirm.
The display shows the Settings
menu again.
On-board computer (vehicles with
steering wheel buttons)
Operating the on-board computer
Overview
: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 displays and the settings in the on-board computer using the steering wheel
buttons in left control panels =. Using thesteering wheel buttons in right control panel
;
you can control the functions of the audio sys-
tem and switch on voice-operated control of the
navigation system (see the separate operating
instructions).
Steering wheel buttons
Left control panel on the steering wheel
=
;RCalls up the menu bar in the dis-
play
RSelects a menu
9
:Press briefly:
RScrolls through lists
RSelects a submenu or function
RIn the Audiomenu: opens the
track or station list and selects a
station or an audio track
RIn the Tel(Telephone) menu:
switches to the phone book and
selects a name or a telephone
number
9
:Press and hold:
RQuickly scrolls through all lists
RIn the Audiomenu: selects a sta-
tion or an audio track using rapid
scrolling.
RIn the Tel(telephone) menu:
starts rapid scrolling if the phone
book is open
aRConfirms the display message
RIn all menus: confirms the selected
entry in the list or the display
RIn the Audiomenu: stops the sta-
tion search
RIn the Tel(telephone) menu:
switches to the phone book and
starts dialing the selected number
176On-board computer (vehicles with steering wheel buttons)
On-board computer and displays
In status areaD, the display can show the sta-
tus of the following driving systems:
À ATTENTION ASSIST (
Ypage 150)
à Lane Keeping Assist (
Ypage 148)
V Cruise control (
Ypage 142)
è Rear window wiper (
Ypage 104)
è ECO start/stop function (
Ypage 123)
Menu overview
You can think of the order of the menus as a
circle. Use the =or; steering wheel
buttons to show the menu bar and scroll through
the menus. Use the :or9 steering
wheel buttons to scroll through their submenus and functions.
Operation information can be found under
"Operating the on-board computer"
(
Ypage 176).
Depending on the vehicle equipment, you can
call up the following menus:
RTripmenu (Ypage 178)
RNavimenu (navigation instructions)
(Ypage 180)
RAudiomenu (Ypage 181)
RTel(telephone) menu (Ypage 182)
RAssist.(assistance) menu (Ypage 183)
RServicemenu (Ypage 185)
RSettingsmenu (Ypage 186)
Trip menu
Standard display
Odometer
XPress and hold the %steering wheel but-
ton until the Tripmenu with trip odometer :
and odometer ;appears.
If the display shows the speed in the header, the
outside temperature is additionally displayed on
the lower edge of display panel =.
You can switch the permanent display in the
header (
Ypage 186).
Displaying the range and current fuel
consumption
Using the steering wheel buttons
XPress =or; to select the Tripmenu.
XPress:or9 to select range :and
consumption ;.
Approximate range :is calculated on the basis
of your current driving style and the amount of
fuel in the tank. If there is only a small amount of
fuel left in the fuel tank, the display shows a
vehicle being refueled Ïinstead of the
approximate range.
Recuperation display =shows whether, and, if
so, how much kinetic energy is being trans-
formed into electric current whilst the vehicle is
coasting. The recuperated energy is then stored
in the starter battery. Recuperation display =is
dependent on the engine installed and is there-
fore not available in all vehicles.
178On-board computer (vehicles with steering wheel buttons)
On-board computer and displays
Accepting a call
XPress the6 buttonto answer acall .
If someon ecall syou when you are in th eTel
menu, acorresponding display message
appear sin th emultifunction display.
Rejecting orending a call
XPress th e~ steering whee lbutton.
Dialing a number fr omthe phone book
Using thesteering whee lbuttons
XPress =or; to select th eTelmenu.
XPress :, 9ora to switch to th e
phone book .
XPress:or9 to select names succes-
sively.
If you press and hold th ebutto nfor longer
than on esecond, th enames in th ephone
book are shown rapidly on eafter another.
or
XPress and hold :or9 for longer than
fiv eseconds.
Rapid scrollin g —thenam ethat start swit hth e
next lette ror th eprevious lette rin th ealpha-
bet is displayed. Rapid scrollin gstops when
you release th ebutto nor reac hth een dof th e
list .
XIf only one telephone number is store dfor
a name: press6ora to start dialing.
or
XIf there is mor ethan one number for a
particular name: press the6 ora
butto nto display th enumbers.
XPress :or9 to select atelephon e
number .
XPress6ora to start dialing. or
XTo exit th
ephone book :press ~or%.
Redialing
The on-board computer saves th elast names or
number sdialed in th eredial memory. Using th e
steering whee lbuttons
XPress =or; to select th eTelmenu.
XPress th e6 buttonto switch to th eredial
memory.
XPress :or9 to select names or tele-
phone numbers.
XPress th e6 ora buttonto start dialing.
or
XTo exit th eredial memory :press th e~
or % button.
Assistance menu
Introd uction
Dependin gon th evehicle’s equipment, you hav e
th efollowin goption sin th eAssist .menu:
RDisplaying th estatus overview
(Ypage 184)
RDeactivating or activating ES P®
(Ypage 184)
RActivating or deactivating theCOLLISION
PREVENTION ASSIST distanc ewarning func-
tion (
Ypage 185)
RSetting th eATTENTION ASSIST sensitivit y
(Ypage 185)
RActivating or deactivating Blind Spot Assis t
(Ypage 185)
RSetting th esensitivit yof Lan eKeepin gAssis t
(Ypage 185)
On-board computer (vehicles with steering wheel buttons)183
On-board computer and displays
Z
Display messages (vehicles withoutsteering wheel buttons)
Introduction
Important safet ynotes
GWARNING
If th einstrumen tcluster has failed or malfunctioned, you may no trecogniz efunction restriction s
in systems relevant to safety. The operatin gsafet yof your vehicle may be impaired. There is aris k
of an accident.
Drive on carefully. Hav eth evehicle checke dat aqualified specialis tworkshop immediately.
The on-boar dcompute ronly shows messages or warnings from certain systems in th einstrumen t
cluster display. You should therefore mak esur eyour vehicle is operatin gsafely at all times .If th e
operatin gsafet yof your vehicle is impaired, stop th evehicle as soo nas possible, payin gattention
to road and traffic conditions. The nconsult aqualified specialis tworkshop .
Display messages wit hgraphi csymbols are simplified in th eOperator's Manual and may diffe rfrom
th esymbols in th edisplay. Awarnin gtone sounds wit hcertain display messages.
Please respon din accordance wit hth edisplay messages and follow th eadditional note sin this
Operator's Manual.
You can hide low-priorit ydisplay messages usin gth e3 butto non th einstrumen tcluster. The
display messages are then stored in th emessag ememory. Rectify th
eca
use ofadisplay messag e
as soo nas possible.
High-priorit ydisplay messages canno tbe hidden .These messages will continue to be shown in th e
display until their cause has bee neliminated.
Message memory
The on-boar dcompute rstores certain display messages in th emessag ememory. You can cal lup
th estored display messages. Use th ebuttons in th einstrumen tcluster.
XPress Èto selec tth emessag ememory.
If there are display messages, th edisplay shows th enumber of saved messages.
If there are no display messages, th edisplay shows No Messages
.
XPress3to scroll forwards through th edisplay messages.
Afte rth elast saved display message, th edisplay again shows th emessag ememor ystart scree n
wit hth enumber of saved messages.
Press Èto exit th edisplay messages and jump directl yto th emessag ememor ystart screen.
Display messages (vehicles without steering wheelbu ttons)189
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
Further information on theOccupant Classification Syste m(OCS )can
be found under "Occupant Classification Syste m(OCS)" (Ypage 53).
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
XVisit aqualified specialist workshop .
$(USAonly)
J(Canada only)
Check Brake Fluid
Level
There is insufficien tbrak efluid in th ebrak efluid reservoir .
GWARNING
Braking performance can be impaired.
There is aris kof an accident.
XStop th evehicl eimmediately, payin gattention to roa dand traffic
conditions. Do no tcontinu edrivin gunder any circumstances.
XSecur eth evehicl eto preven tit from rollin gaway (Ypage 133).
XDo no tadd brak efluid. Addin gmor ewill no tremedy th emalfunc -
tion .
XConsult aqualified specialist workshop .
EBD,ABS ,ESP Inop‐erativ e
+
EBDis unavailable due to amalfunction .ABS, BAS, hill start assist and
ES P®as well as it sdrivin gsafet ysystems ,for example, are therefor e
also unavailable .
ATTENTION ASSIST is deactivated and other drivin gsystems could be
automatically deactivated.
GWARNIN G
The brak esystem continues to function normally, but without th e
function slisted above. The wheels could therefor eloc kprematurel yif
you brak ehard, for example.
This causes steerabilit yand braking to be greatl yimpaired. The brak -
ing distanc ecan increas ein emergenc ybraking situations.
If ES P
®is no toperational, ES P®will notstabiliz eth evehicle.
There is an increased ris kof skiddin gand accidents .
XSwitchth eengin eoff ,wait briefl yand start th eengin eagain .
XCheckif th edisplay message has disappeared and ES P®is opera-
tional.
XIf th edisplay message continues to be displayed:
RDrive on wit hcare.
RVisit aqualified specialist workshop immediately.
Display messages (vehicles without steering wheelbu ttons)193
On-board computer and displays
Z
Engine
Display messagesPossible causes/consequences andMSolutions
#An additional warning tone sounds. The battery is not being charged.
Possible causes:
Rfaulty alternator
Rtorn poly-V-belt
Ra malfunction in the electronics
XStop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
!Do not continue driving. The engine could otherwise overheat.
XSecure the vehicle to prevent it from rolling away (Ypage 133).
XConsult a qualified specialist workshop.
?
Stop Vehicle TurnEng. Off
An additional warning tone sounds. The coolant is too hot.
GWARNING
Never drive with an overheated engine. Driving when the engine is
overheated can cause fluids which may have leaked into the engine
compartment to catch fire.
In addition, steam from an overheated engine can cause serious
burns, which can occur just by opening the hood.
There is a risk of injury.
XStop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
XSecure the vehicle to prevent it from rolling away (Ypage 133).
XWait until the engine has cooled down.
XMake sure that the air supply to the radiator is not obstructed, by
frozen slush for example.
XDo not start the engine again until the display message goes out and
the coolant temperature is below the maximum value specified. The
engine could otherwise be damaged.
XPay attention to the coolant temperature gage (Ypage 173).
XIf the temperature increases again, visit a qualified specialist work-
shop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature gage may rise to 248 ‡ (120 †).
?The fan motor is faulty.
XCheck the coolant temperature (Ypage 173).
XIf the coolant temperature is below the maximum value specified
below, you can continue driving to the nearest qualified specialist
workshop.
Avoid heavy loads on the engine, e.g. driving in mountainous terrain,
and stop-and-go traffic.
Under normal operating conditions and with the specified coolant
level, the coolant temperature gage may rise to 248 ‡ (120 †).
198Display messages (vehicles without steering wheel buttons)
On-board computer and displays
Tires
Display messagesPossible causes/consequences andMSolutions
Correct Tire Pres‐sureThe tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
XCheck the tire pressure at the next opportunity (Ypage 284).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 287).
CheckTirePressureSoonAn additional warning tone sounds.
The tire pressure in one or more tires has dropped significantly.
GWARNING
Tire pressure that are too low pose the following hazards:
RThe tires may burst, especially as the load and vehicle speed
increase.
RThe tires may wear excessively and/or unevenly, which may greatly
impair tire traction.
RThe handling as well as steering and braking characteristics may be severely affected.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions while doing so.
XSecure the vehicle to prevent it from rolling away (Ypage 133).
XCheck the tires and, if necessary, change the wheel (Ypage 296).
XCheck the tire pressure (Ypage 284).
XIf necessary, correct the tire pressure.
Caution! Tire Mal‐func.
The tire pressure in one or more tires has dropped suddenly.
GWARNING
Driving with a flat tire poses a risk of the following hazards:
RA flat tire affects the ability to steer or brake the vehicle.
RYou could then lose control of the vehicle.
RContinued driving with a flat tire will cause excessive heat build-up
and possibly a fire.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions while doing so.
XSecure the vehicle to prevent it from rolling away (Ypage 133).
XCheck the tires and, if necessary, change the wheel (Ypage 296).
Displa y messages (vehicles without steering wheelbu ttons)201
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
TirePress.Monito rCurrently Unavail.Due toasource of radi ointerference, no signals can be received from
th ewhee lsensors. The tire pressur emonitor is temporarily malfunc -
tioning .
The tire pressur emonitor restarts automatically as soo nas th eprob-
lem has been solved.
Tir ePress.Monito rInoperativeThe tire pressur emonitor is malfunctioning and switched off .Either
th einstalled wheels do no thav esuitable tire pressur esensor sor th e
system is malfunctioning ,e.g. because atire pressur esensor is faulty.
XInstall wheels wit hsuitable tire pressur esensors.
The tire pressur emonitor is activated automatically after drivin gfor
a few minutes.
or
XVisit aqualified specialist workshop .
Vehicle
Display messagesPossible causes/consequences and MSolutions
ÒThe tailgateis open .
XCloseth etailgate.
ÑThe rear door is open .
XCloseth erear door(s).
ÓAn additional warning tone sounds. The hoo dis open .
GWARNIN G
The open hoo dmay then bloc kyour vie wwhen th evehicl eis in motion .
There is aris kof an accident.
XStop th evehicl eimmediately, payin gattention to roa dand traffic
conditions.
XSecur eth evehicl eto preven tit from rollin gaway (Ypage 133).
XCloseth ehood.
0An additional warning tone sounds while th evehicl eis in motion .The
display shows th eopen door(s).
XClos eall doors.
Ð
Pwr .Steering Mal ‐
funct.+
An additional warning tone sounds. The steering powe rassistanc e
could be malfunctioning .You may need to steer mor eforcefully.
XCarefully continu eto aqualified specialist workshop and hav eth e
steering checke dimmediately.
202Display messages (vehicles without steering wheelbu ttons)
On-board computer and displays