ECU MERCEDES-BENZ C-CLASS COUPE 2015 Owner's Guide

Electric parking brake
General notes G
WARNING
If you leave childre nunattende dinthevehi-
cle ,the ym ay be able to set th evehicle in
motion if, for example, they:
R release th eparking brake
R shif tthe automatic transmission out of park
position Por shif tmanual transmission into
neutral
R start th eengine
In addition ,the ym ay operate vehicle equip-
men tand become trapped. Ther eisarisk of
an acciden tand injury.
When leavin gthe vehicle ,always tak ethe key
with you and loc kthe vehicle .Never leave
childre nunattende dinthevehicle.
The function of th eelectric parking brak eis
dependen tontheon-board voltage. If th eon-
boar dvoltage is low or if there is amalfunction
in th esystem, it may no tbepossible to apply the
released parking brake.
X If this is th ecase, only park th evehicle on
leve lground and secure it to prevent it from
rolling away.
X Vehicles with automatic transmission:
shif tthe automatic transmission to position
P .
X Vehicles with manua
ltra nsmission:
engage first gear.
It may no tbepossible to release an applied
parking brak eiftheon-board voltage is low or if
there is amalfunctio ninthesystem. Contac ta
qualified specialist workshop.
The electric parking brak ecarries out afunction
check at regular intervals when th eengine is
switched off .Noises that occur are normal. Applying or releasin
gmanually X
To apply: push handle :.
When th eelectric parking brak eisapplied,
th er ed ! indicator lamp light supinthe
instrumen tcluster.
The electric parking brak ecan also be applied
when th ekeyis removed.
X To release: pull handle:.
The red !indicator lamp in th einstrument
cluste rgoes out.
The electric parking brak ecan only be released:
R when th ekeyis in position 1or 2in th eigni-
tio nlock( Ypage 145) or
R if th eignition was switched on usin gthe
Start/Sto pbutton
Applying automatically (vehicles with
automatic transmission) The electric parking brak
eisautomatically
applied when th etransmission is in position P
and:
R thee ngine is switched off or
R thed river is no twearin gaseat belt and the
driver' sdoor is opened
To prevent th eelectric parking brak efromb eing
automaticall yapplied ,pull handle :.
The electric parking brak eisalso applied auto-
maticall yif:
R DISTRONIC PLU Sbrings th evehicle to a
standstil lor
R theH OLDf unction is keepin gthe vehicle sta-
tionary
R Activ eParking Assist is keepin gthe vehicle
stationary 174
ParkingDriving and parking

Cruise control lever
:
To store th ecurren tspee dorah igher speed
; LIM indicator lamp
= To store th ecurren tspee dorc alling up the
last store dspeed
? To store th ecurren tspee doral ower speed
A To switch between cruise control and varia-
ble SPEEDTRONIC
B To deactivate cruise control
You can operate cruise control and variable
SPEEDTRONIC wit hthe cruise control lever.
The LIM indicator lamp on th ecruise control
leve rindicates whic hsystem you have selected:
R LIM indicator lam poff:cruise control is
selected
R LIM indicator lam pon:variable SPEED-
TRONIC is selected
When you activat ecruise control, th estored
spee diss hown in th emultifunction display for
fiv es econds. In addition ,the é symbol
appear sinthemultifunction display.
Speedometer with segments: when cruise
control is activated, th esegments from the
store dspee dtot hemaximum permitted speed
light up.
Selecting cruise control X
Chec kwhether LIM indicator lamp ;is off.
If it is off ,cruise control is alread yselected.
If it is not, pres sthe cruise control leve rinthe
direction of arrow A.
LIM indicator lamp ;in th ecruise control
leve rgoes out .Cruis econtrol is selected. Storing and maintaining th
ecurrent
speed You can store th
ecurren tspee dify ou are driv-
ing faster than 30 km/h.
X Accelerat ethe vehicle to th edesired speed.
X Briefl ypres sthe cruise control leve rup:or
down ?.
X Remove your foo tfro mt heaccelerato rpedal.
Cruis econtrol is activated. The vehicle auto-
maticall ymaintain sthe speed.
i Cruis
econtrol may be unable to maintain
th es toreds pee donu phill gradients .The
store dspee disr esumed when th egradient
evens out .Cruis econtrol maintain sthe
store dspee dond ownhill gradients by auto-
maticall ybraking th evehicle.
i Vehicle swithm anual transmission:
R Always driv eatadequate, but no texces-
sive, engin espeeds.
R Change gear in good time.
R If possible, do no tchang ed own several
gear satat ime.
Storing th ecurren tspeed or callin gup
th el ast stored speed G
WARNING
If you call up th estoreds pee dand it is lower
than th ecurren tspeed, th evehicle deceler-
ates. If you do no tkno wt he store dspeed, the
vehicle coul ddecelerate unexpectedly. There
is ar iskofana ccident.
Pay attentio ntotheroad and traffic condi-
tions before calling up th estoreds peed. If you
do no tknowt he store dspeed, store the
desired spee dagain.
X Briefl ypull th ecruise control leve rtow ards
you =.
X Remove your foo tfro mt heaccelerato rpedal.
The first tim ecruise control is activated, it
store sthe curren tspee dorr egulate sthe
spee doft hevehicle to th epreviously stored
speed. Driving systems
181Driving and parking Z

Stopping
G
WARNING
When leaving the vehicle, even if it is braked
only by DISTRONIC PLUS, it could roll away if:
R there is amalfunction in the system or in
the voltage supply.
R DISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by avehi-
cle occupant or from outside the vehicle.
R the electrical system in the engine com-
partment,t he battery or the fuses have
been tampered with.
R the battery is disconnected.
R the accelerator pedal has been depressed,
e.g. by avehicle occupant.
There is arisk of an accident.
If you wish to exit the vehicle, always turn off
DISTRONIC PLUS and secure the vehicle
against rolling away.
Further information on deactivating DISTRONIC PLUS (Y page 190).
If DISTRONIC PLUS detectst hat the vehicle in
front is stopping, it brakes your vehicle until it is stationary.
Once your vehicle is stationary, it remains sta-
tionary and you do not need to depress the
brake.
i After
ashort period, the vehicle is secured
by the electric parking brake, thus relieving
the service brake.
i Depending on the specified minimum dis-
tance, your vehicle will come to astandstill at
as ufficient distance behind the vehicle in
front.T he specified minimum distance is set
using the control on the cruise control lever.
When DISTRONIC PLUS is activated, the trans-
mission is shifted automatically to position Pif:
R the driver's seat belt is not fastened and the
driver's door is open
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function The electric parking brake secures the vehicle
automatically if DISTRONIC PLUS is activated
when the vehicle is stationary and:
R as ystem fault occurs
R the power supply is insufficient
If af ault occurs, the transmission may also shift
into position Pautomatically.
Setting aspeed X
Press the cruise control lever up :for a
higher speed or down Afor alower speed.
X Keep the cruise control lever pressed until the
desired speed is reached.
X Release the cruise control lever.
The new speed is stored. DISTRONIC PLUS is
activated and adjusts the vehicle's speed to
the new speed stored.
X To adjust the set speed in
1km/h incre-
ments: briefly press the cruise control lever
up : or down Ato the pressure point.
The last stored speed increases or decreases
in 1k m/h increments.
X To adjust the set speed in 10 km/h incre-
ments: briefly press the cruise control lever
up : or down Abeyond the pressure point.
The last stored speed increases or decreases in 10 km/h increments.
i If you accelerate to overtake, DISTRONIC
PLUS adjusts the vehicle's speed to the last
speed stored after you have finished overtak-
ing.
Setting the specified minimum distance You can set the specified minimum distance for
DISTRONIC PLUS by varying the time span
between one and two seconds. With this func-
tion, you can set the minimum distance that
DISTRONIC PLUS maintains to the vehicle in
front,d ependent on vehicle speed. You can see
this distance in the multifunction display
(Y page 189).
i Make sure that you maintain the minimum
distance to the vehicle in front as required by law. Adjust the distance to the vehicle in front
if necessary. 188
Driving systemsDriving and parking

You will see the stored speed for approximately
five seconds when you activate DISTRONIC
PLUS.
Deactivating DISTRONIC PLUS There are several ways to deactivate
DISTRONIC PLUS:
X Briefly press the cruis econtrol lever forwards
=.
or
X Brake, unless the vehicle is stationary.
or X Briefly press the cruis econtrol lever in the
direction of arrow ;.
Variable SPEEDTRONIC is selected. LIM indi-
cator lamp :in the cruis econtrol lever lights
up.
When you deactivate DISTRONIC PLUS ,you will
see the DISTRONI CPLUS off
DISTRONI CPLUS off messageinthe
multifunction display for approximately five sec-
onds.
i The last speed stored remain
sstored until
you switc hoff the engine.
i DISTRONIC PLUS is not deactivate
difyou
depres sthe accelerator pedal.
DISTRONIC PLUS is automatically deactivated
if: R you apply the electric parking brak eorifthe
vehicle is automatically secured with the elec- tric parking brake
R ESP ®
intervenes or you deactivate ESP ®
R the transmission is in the P,Ror Nposition
R you pull the cruis econtrol lever towards you
in order to pull away and the front-passenger door or one of the rear doors is open
R the vehicle is skidding
R you activate Activ eParking Assist If DISTRONIC PLUS is deactivated, you will hear
aw arnin gtone. You will see the DISTRONIC
DISTRONIC
PLUS off PLUS off messageinthe multifunction display
for approximately five seconds.
Tip sfor driving with DISTRONIC PLUS General notes
Pay particular attention in the followin gtraffic
situations:
R Cornering, enterin gand exiting abend: the
ability of DISTRONIC PLUS to detec tvehicles
when cornering is limited. Your vehicle may
brak eunexpectedly or late.
R Driving on adifferen tline: DISTRONIC PLUS
may not detec tvehicles which are not driving
in the middle of their lane. The distance to the
vehicle in fron twill be too short.
R Other vehicles changing lane: DISTRONIC
PLUS has not detected the vehicle cuttin gin
yet. The distance to this vehicle will be too
short.
R Narro wvehicles: DISTRONIC PLUS has not
yet detected the vehicle in fron tonthe edge
of the carriageway because of its narrow
width. The distance to the vehicle in fron twill
be too short.
R Obstacles and stationar yvehicles:
DISTRONIC PLUS does not brak efor obsta-
cles or stationar yvehicles. If, for example, the
detected vehicle turn sacorner and reveals an
obstacle or stationar yvehicle, DISTRONIC
PLUS will not brak efor these.
R Crossin gvehicles: DISTRONIC PLUS may mis-
takenly detec tvehicles that are crossin gyour
lane. Activatin gDISTRONIC PLUS at traffic
light swith crossin gtraffic ,for example, could
cause your vehicle to pull away unintention-
ally.
In such situations ,brak eifn ecessary.
DISTRONIC PLUS is the ndeactivated. 190
Driving systemsDriving and parking

Important safety notes
G
WARNING
When leaving th evehicle, it can still rol laway
despit ebein gbraked by th eHOLDfunction if:
R there is amalfunction in th esystem or in
th ev oltag esupply
R theH OLDf unction is deactivated by the
accelerato rpedal bein gdepressed, e.g. by
av ehicl eoccupant
R thee lectrical system in th eenginec om-
partment, th ebattery or th efuses are tam-
pered with
R theb attery is disconnected
Ther eisar iskofana ccident.
Before leaving th evehicle, always deactivate
th eH OLDf unction and secure th evehicle
from rollin gaway.
! When DISTRONI
CPLUSort heHOLD func-
tion is activated, th evehicl ebrakes automat-
ically in certain situations.
To avoi ddamag etothevehicle, deactivate
DISTRONI CPLUSa nd th eHOLDf unction in
th ef ollowin gorsimilar situations:
R when towin gaway
R in ac ar wash
Deactivating th eHOLDf unction (Y page 193).
Activation conditions You can activat
ethe HOLD function if all of the
followin gconditi onsa re fulfilled:
R thev ehicl eiss tationary
R thee ngineisr unnin gorifith as been auto-
matically switched off by th eECO start/stop
function
R thed river' sdoor is closed or your seat belt is
fastened
R thee lectric parking brak eisreleased
R vehicles wit hautomatic transmission :the
transmission is in position D,Ror N
R DISTRONI CPLUSisd eactivated Activating th
eHOLD function X
Mak esuret hatthe activation condition sare
met.
X Depress th ebrak epedal.
X Quickly depress th ebrak epedal further
until :appear sinthemultifunction display.
The HOLD function is activated. You can
release th ebrak epedal.
i If depressing th
ebrak epedal th efirst time
does no tactivat ethe HOLD function ,wait
briefly and then tr yagain.
Deactivating th eHOLD function The HOLD function is deactivated automatically
if:
R you accelerate .Onvehicles wit hautomatic
transmission :onlyw hen th etransmission is in
position Dor R.
R thet ransmission is in position Pon vehicles
wit ha utomatic transmission.
R you depress th ebrak epedal again wit hacer-
tai na moun tofpressur euntil display :dis-
appear sfromt hemultifunction display.
R you secure th evehicl eusin gthe electric park-
ing brake.
R you activat eDISTR ONICPLUS.
i Afte
ras hort period, th evehicl eiss ecured
by th eelectric parking brake, thus relieving
th es ervic ebrake.
Vehicles with automatic transmission Driving systems
193Driving and parking Z

When the HOLD function is activated, the trans-
mission is shifted automatically to position Pif:
R the driver's seat belt is not fastened and the
driver's door is open
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function
The electric parking brake secures the vehicle
automatically if the HOLD function is activated,
the vehicle is stationary and:
R as ystem fault occurs
R the power supply is insufficient
If am alfunction occurs ,then the transmission
may also be shifted into position Pautomati-
cally.
Vehicles with manual transmission
The electric parking brake secures the vehicle
automatically if the HOLD function is activated
and:
R the driver's seat belt is not fastened and the
driver's door is open
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function
R as ystem fault occurs
R the power supply is insufficient
The Brake immediately
Brake immediately message may also
appear in the multifunction display.
X Immediately depress the brake pedal firmly
until the warning message in the multifunc-
tion display goes out.
The HOLD function is deactivated.
Ah orn will sound at regular intervals if you turn
off the engine, take off your seat belt or open the driver's door when the HOLD function is activa-ted. The horn alerts you to the fact that the
HOLD function is still activated. If you attempt to
lock the vehicle, the toneb ecomes louder. The
vehicle cannot be locked until you have deacti-
vated the HOLD function.
i Oncey
ou have switched off the engine, you
cannot restart it until you have deactivated
the HOLD function. RACE START
Important safety notes i
RACE START must not be used on normal
roads. RACE START must only be activated
and used on dedicated road circuits, outside
of public road use.
i RACE START is only available in
Mercedes‑ AMG vehicles.
RACE START enables optimum acceleration
from astandin gstart .For this, asuitably high-
grip road surface is required, along with the
tyres and vehicle being in good condition. G
WARNING
If you use RACE START, individual tyres may
get into aspin and the vehicle could skid.
Dependin gonthe selected ESP ®
mode, there
is an increased risk of skidding and having an accident .Make sure that no persons ,animals
or obstacles are within range of the vehicle.
i Observe the safety notes on driving safety
systems (Y page 66).
Be sure to read the safety notes and informa-
tion on ESP ®
(Y page 71).
Activation conditions You can activat
eRACE START if:
R the doors are closed
R the engine is running and it has reached an
operating temperature of approximately
71 †. This is the case when the oil tempera-
ture gauge in the multifunction display is
shown in white.
R the drive program S,S+ orRace is selected
(Y page 154)
R the steerin gwheel is in the straight-ahead
position
R the vehicle is stationary and the brake pedal is
depressed (left foot)
R the transmission is in position D
Activating RACE START i
When manual mode (Y
page 163) is active,
the transmission automatically shifts up to
RACE START in the drive program. This func-
tion supports maximum acceleration with 194
Driving systemsDriving and parking

Active Parking Assist will onl
ydetect parking
spaces:
R parallel or at right angle stothe direction of
travel
R tha tare parallel to the direction of travel and
ar eatl east1.5mw ide
R tha tare parallel to the direction of travel and
at leas t1.0ml onger tha nyourv ehicle
R tha tare at right angle stothe direction of
travel and at leas t1.0mw ider than your vehi-
cle
i Not
ethat Activ eParking Assist cannot
measure the size of aparking space if it is at
right angles to the direction of travel. You will need to judge whether your vehicle will fit in
the parking space.
When drivin gatspeeds below 30 km/h, you will
see parking symbol ;asas tatus indicator in
the instrumen tcluster. When aparking space
has been detected, an arrow towards the right or the left also appears. Activ eParking Assist only
displays parking spaces on the front-passenger
side as standard. Parking spaces on the driver's side are displayed as soon as the turn signal onthe driver's side is activated. When parking on
the driver's side, this must remain activated
until you confirm the use of Activ eParking Assist
by pressing the abutton on the multifunc-
tion steerin gwheel. The system automatically
determines whether the parking space is paral-
lel or at right angles to the direction of travel.
Ap arking space is displayed while you are driv-
ing past it, and until you are approximately 15 m
away fro mit.
Parking G
WARNING
If you leave the vehicle when it is only being
braked by Activ eParking Assist it could roll
away if:
R there is amalfunction in the system or in
the voltage supply.
R the electrical system in the engin ecom-
partment, the battery or the fuses are tam-
pered with.
R the battery is disconnected.
R the vehicle is accelerated, e.g. by avehicle
occupant. There is
arisk of an accident.
Before leavin gthe vehicle, always secur eit
against rollin gaway.
i Vehicles with automatic transmission:if
PARKTRONIC detect sobstacles, Activ ePark-
ing Assist brakes automatically durin gthe
parking process. You are responsible for brak- ing in good time.
X Stop the vehicle when the parking symbol
shows the desired parking space in the instru-
men tcluster.
X Vehicles with manua ltra nsmission: shift
to reverse gear.
Vehicles with automatic transmission:
shift int oposition R.
The Start Start Park ParkAssist?
Assist? Yes:
Yes:OK
OKNo:
No:%
message appears in the multifunction display.
X To cancel th eprocedure: press the %
button on the multifunction steerin gwheel or
pull away.
or
X To park using Active Parking Assist: press
the a button on the multifunction steering
wheel.
The Park Assist active Accelerate Park Assist active Accelerate
and brake
and brake Observe surroundings
Observe surroundings mes-
sage appears in the multifunction display.
X Release the multifunction steerin gwheel.
X Revers ethe vehicle, being ready to brak eat
all times. When reversing, drive at aspeed
below 10 km/h .Otherwise, Activ eParking
Assist will be cancelled.
Vehicles with automatic transmission:
Activ eParking Assist brakes the vehicle to a
standstill when the vehicle approaches the
rear border of the parking space.
Manoeuvrin gmay be require dintightparking
spaces.
X Vehicles with manua ltra nsmission: stop
as soon as PARKTRONIC sound sthe contin-
uous warnin gtone, if not before.
Manoeuvrin gmay be require dintightparking
spaces.
Vehicles with automatic transmission: the
Park Assist active Select D Park Assist active Select D Observe
Observe
surroundings
surroundings message appears in the multi-
function display.
Vehicles with manua ltra nsmission: the
Park Park Assist
Assist active
activeEngage
Engageforward
forward gear
gear Driving systems
203Driving and parking Z

R
as plit-screen with to pview and th eimage
from th efront camera or
R as plit-screen with to pview and th eimage
from th ereversing camera
X To switch off: pressbutton :.
Switching on th e360° camera using
revers egear You can show image
sfromt he360° camera
automatically by engagin grevers egear.
X Mak esure that th ekeyis in position 2in the
ignition lock.
X Mak esure that the ActivationbyRgear
Activatio nbyRgear
function is selecte dinthemultimedia system
(see th eDigital Owner' sManual).
X To show th e360° camera image: engage
revers egear.
The multimedia system show sthe area
behin dthe vehicle in split-screen mode .You
see th etop view of th evehicle and th eimage
from th ereversing camera.
Selecting th esplit-screen view or full
screen mode Switching between split screen views:
X To switch to th eline with th evehicle icons:
slide 5thec ontroller.
X To selec tavehicle icon: tur nthe controller.
Switching to full screen mode:
X 180 °v iew
180 °v iew Turn and pres sthe controller.
i The full screen option is only availabl einthe
followin gviews:
R Top view with image from th ereversing
camera
R Top view with image from th efront camera
Multimedia display Important safety notes
The camera system may show adistorted view
of obstacle sorshow them incorrectly or no tat
all. Obstacle sare no tshow nbyt hesystem in the
followin glocations:
R unde rthe fron tand rear bumpers
R ver yclose to th efront and rear bumpers
R in th earea immediately abov ethe handle on
th eb oot lid R
ver yclose to th eexterio rmirrors
R in th etransitional areas between th evarious
cameras in th evirtual to pview
! Object
snotat ground leve lmay appear to
be further away than they actually are, e.g.:
R theb umpe rofap arked vehicle
R thed rawbar of atrailer
R theb all coupling of atrailer to whitch
R ther ear sectio nofanHGV
R as lante dpost
Use th eguidelines only for orientation.
Approac hobject snof urther than th ebottom-
mos tguideline.
Top view with image from th ereversing
camera :
Yellow guide line at adistanc eofapprox-
imately 4. 0mfromt herear of th evehicle
; Symbol for th esplit-screen settin gwith top
view and reversing camera image
= Guide line for th emaximum steering angle
? Yellow lane markin gthe course th etyres will
tak eatt hecurren tsteering wheel angle
(dynamic)
A Yellow guide line for th evehicle width
includin gthe exterio rmirrors, for current
steering wheel angle (dynamic) 212
Driving systemsDriving and parking

ATTENTION ASSIST
Genera lnotes ATTENTION ASSIST help
syou during long,
monotonous journeys suc hasonmotorways
and trunk roads. It is active in th e60km/ hto
20 0k m/ hspee drange. If ATTENTION ASSIST
detects typical indicators of fatigue or increas-
ing lapse sinconcentratio nonthepart of the
driver ,itsuggest staking abreak.
Important safety notes ATTENTION ASSIST is only an aid. It may not
always detec tfatigue or lapse sinconcentration
until to olate, or may no tdetec tthe mata ll. The
system is no tasubstitut efor aw ell-reste dand
attentive driver.
The functionalit yofATTENTION ASSIST is
restricted, and warning smay be delaye dornot
occur at all:
R if th elengt hoft hejourney is less than approx-
imately 30 minutes
R if th eroad condition is poor ,e.g.ift hesurface
is uneven or if there are potholes
R if there is astron gs ide wind
R if you hav eadopted asport ydrivin gstyle with
high cornering speeds or high rates of accel-
eration
R if you are predominantly drivin gataspeed
belo w60k m/horabov e200 km/h
R if you are drivin gwitht he active Steer Assist
of DISTRONI CPLUS
R if th etimeh as been set incorrectly
R in active drivin gsituations, suc haswhen you
chang elanes or chang eyour speed
The ATTENTION ASSIST tiredness assessment
is delete dand restarte dwhen continuing the
journey, if:
R you switch off th eengine
R you tak eoff your seat belt and open th edriv-
er' sd oor ,e.g.f or ac hang eofd riversorto
tak eab reak Displaying th
eattention level You can hav
ecurren tstatus information dis-
played in th eassistanc emenu( Ypage 244) of
th eo n-bo ard computer.
X Selec tthe assistanc egraphic sdisplay for
ATTENTION ASSIST usin gthe on-board com-
puter (Y page 243).
The followin ginformation is displayed:
R thel engt hoft hejourney since th elast break
R thea ttention level determine dbyATTENTION
ASSIST (Attention level Attention level), displayed in a
bar display in fiv elevels from high to low
R if ATTENTION ASSIST is unable to calculate
thea ttention level and canno tissue awarn-
ing ,the System suspended System suspended message
appears. The bar display then changes the
display, e.g. if you are drivin gataspeedbelow
60 km/h or abov e200 km/h.
Activating ATTENTION ASSIST X
Activat eATTEN TION ASSIST usin gthe on-
boar dcom puter (Y page 246).
The system determine sthe attention level of
th ed river depending on th esetting selected:
If Standard Standard is selected: th esensitivit ywith
whic hthe system determine sthe attention level
is set to normal.
If Sensitive
Sensitive is selected: th esensitivit yisset
higher. The attention level detecte dbyATTEN-
TIO NA SSIS Tisa dapted accordingly and the
driver is warned earlier.
When ATTENTION ASSIST is deactivated, the
é symbol appear sinthemultifunction dis-
play in th eassistanc egraphic display.
When ATTENTION ASSIST has been deactivated, it is automatically reactivated after th eengine
has been switched off .The sensitivit yselected Driving systems
215Driving and parking Z

corresponds to the last selectio
nactivated
(standard/sensitive).
Warning in the multifunctio ndisplay If fatigu
eorincreasing lapse sinconcentration
are detected, awarning appears in the multi-
function display: ATTENTIONASSIST
ATTENTIO NASSIST Take a
Take a
break!
break!.
In addition to the messag eshown in the multi-
function display ,you will then hea rawarning
tone.
X If necessary, take abreak.
X Confirm the messag ebypressing the a
button on the steering wheel.
On long journeys, take regula rbreaks in good
time that allow for adequate recuperation. If you do not take abreak and ATTENTION ASSIST still
detects increasing lapse sinconcentration, you
will be warned agai nafter1 5m inutes at the
earliest. Thi swillo nly happe nifATTEN-
TION ASSIST stil ldetects typica lindicator sof
fatigu eorincreasing lapse sinconcentration.
Vehicles with COMAND Online: ifaw arning is
outpu tinthe multifunction display ,aservice
station search is performe dinCOMAND Online.
You can select aservice station and navigation
to this service station will then begin. Thi sfunc-
tion can be activate dand deactivated in
COMAND Online (se ethe separate operating
instructions). Traffic Sig
nAssist
General notes Traffic Sign Assist display
sthe maximum speed
permitted and overtaking restrictions to the
driver in the instrument cluster. Driving onto a
section of roa dinthe wrong direction triggers a warning. Traffic Sign Assist detects traffi
csigns
with multifunction camera :attached at the
top of the windscreen. The data and general
traffi cregulations store dinthe navigation sys-
tem are also used to determine the current
speed limit.
If at raffi csignt hat is relevant to your vehicle is
passed, the display of the speed limits and over-
taking restrictions is updated.
The display can also be updated withou tavisible
traffi csigni f:
R the vehicle changes roads (e.g .motorway exit
or sli proad)
R av illage or town boundary is passe dwhich is
store dinthe digita lmap
R the last traffi csignd etected by the camera
ha sn ot bee nrepeated
If as igni ndicating the end of arestriction (speed
limit or overtaking restriction) is passed, the
sig nisd isplayed for five seconds. The currently
applicabl etraffi cregulation continues to be
shown in the assistance graphi cdisplay
(Y page 243).
The camera also detects traffi csigns with a
restriction indicated by an additiona lsign( e.g .in
we tconditions).
The traffi csigns are only displayed with the
restrictions if:
R the regulation mus tbeo bserve dwitht he
restriction, or
R Traffic Sign Assist is unabl etodetermine
whether the restriction applies
If Traffic Sign Assist is unabl etodetermine a
maximum permitted speed from any of the avail- able sources, no speed limit is displayed in the
instrument cluster either. Traffic Sign Assist is not available in al
lcoun-
tries. In this case ,display :is shown in the
speedometer. 216
Drivin
gsystemsDrivin gand parking