RIfth e time has been set incor rectly.
RIn acti vedriving situations, if youch ange
lanes and vary your speed frequentl y.
The ATTENTION ASSIST tiredness or alertness
assessment is dele ted and restar ted when con‐
tinuing the journey in thefo llowing situations:
RIf yo uswit choff the engine.
RIfyo u unfas tenyo ur seat beltand open the
driver's door (e.g. changing drivers or taking
a break).
Setting ATTENTION ASSIST
Multimedia sy stem:
,Vehicle.k Assistance.ATTEN-
TION ASSIST
Setting options
#Select Standard, SensitiveorOff.
Suggesting a rest area
#Select Suggest Rest Area .
#Activate Oor deacti vate the function ª.
If AT TENTION ASSIST de tects fatigue or
increasing la ckof attention, it suggests a
re st area in the vicinity.
#Select a sugges tedre st area.
Yo u are guided tothe selected rest area.
Traf fic Sign Assist
Fu nction of Traf fic Sign Assist
Tr af fic Sign Assist is only an aid. It cannot alw ays
re liably de tect the maximum permissible speed
and the applicable traf fic signs. The driver is
re sponsible for complying with the applicable
tra ffic regulations.
Driving and parking 19
7
Traf fic Sign Assist detects traf fic signs wi thmul‐
tifunction camera 1and assist syo uby display‐
ing de tected speed limits and overtaking restric‐
tions in the instrument clus ter.The camera also
de tects traf fic signs wi thare striction indicated
by an additional sign (e.g. in wet conditions).
Wa rning when the maximum permissible
speed is exceeded
The sy stem can warnyouif yo u unin tentional ly
exc eed the maximum permissible speed. Todo
th is, you can specify inthe multimedia sy stem
by how much the maximum permissible speed
can be exceeded before a warning is issued. You
can specify whe ther thewa rning is tobe just a
visual warning or an acoustic one as well. If the
automatic speed accep tance forAc tive Dis tance
Assist DISTRONIC is acti vated, thewa rnings are
suppressed. Display in
the Instrument Display
1Pe rm issible speed
2Perm issible speed when there is a restriction
3Ad ditional sign with restriction
% Display of speed restriction signs has priority
ove rot her recognized traf fic signs, e.g. over‐
ta king restriction signs.
Since Traf fic Sign Assist also usesthe data
st ored in the navigation sy stem, it can update
th e display in thefo llowing situations without
de tecting traf fic signs:
RWhen theve hicle changes roads, e.g. for a
free wayentr yor exit lane.
RWhen a village or city boundary is passed
which is stored in the digital map.
Traf fic Sign Assist is notavailable in all coun‐
tries. If it is una vailable, display 1is shown in
th e speedome ter.
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing situations:
RIf yo u are driving in conditions of poor visibil‐
ity, e.g. due toinsuf ficient illumination of the
ro ad, highly variable shade conditions, or due
to rain, sno w,fog or heavy spr ay.
19 8
Driving and pa rking
RYou are af fected byglare, e.g. from oncoming
traf fic, the sun or reflections.
RThe windshield is dirty in the area of the mul‐
tifunction camera, or the camera is fogged
up, damaged or co vered.
RIfth e traf fic signs are hard todetect, e.g. due
to dirt or sno w,or because they are co vered,
or due toinsuf ficient lighting.
RIf th e information on the navigation sy stem's
digital map is incor rect or out of date .
RThe signs are ambiguous, e.g. traf fic signs on
construction sites or in adjacent lanes.
Setting Traf fic Sign Assist
Multimedia sy stem:
,Vehicle.k Assistance.Traffic
Sign Assist
Ac tivating /deacti vating automatic adoption
of speed limits
Re quirements
RAc tive Dis tance Assist DISTRONIC is acti va‐
te d.
#Select Limit Adoption .
#Activate Oor deacti vate ª the function.
The speed limits de tected byTraf fic Sign
Assist are automatically adop tedby Active
Dis tance Assist DISTRONIC.
Displ aying de tected traf fic signs in the
media display
#Select Display in COMAND.
#Activate Oor deacti vate ª the function.
Ad justing the type of warning
#Select Visual & Audible ,Visual orNone.
Ad justing the warning threshold
This value de term ines the speed at which a
wa rning is issued when exceeded.
#Select Warning Threshold.
#Setthe desired speed.
Night View Assist
Function of Night View Assist
With th e aid of camera 2, NightView Assist
helps youto recognize the course of thero ad or
obs tacles in the dar k.The multifunction display
th en sho wsa monochrome image of the sur‐
ro unding area infront of theve hicle. Infrared
Driving and parking 19
9
camera1 helps de tect pedestrians and ani‐
mals.
Night View Assist is only an aid. The driver is
re sponsible forth e dis tance totheve hicle in
front, forve hicle speed, for braking in good time
and forst ay ing in lane.
% As inf rare d light is not visible tothe human
ey e, Night View Assist canremain activated
when there is oncoming traf fic.
The infrared headlamps switch on in the
dark from speeds of appr oximately 5 mph
(10 km/h). This means that, while station‐
ar y, yo udo not ha vethe full visual range and
cannot check whe ther Night View Assist is
wo rking.
Sy stem limitations
Night View Assist cannot displ ayobjects directly
in front of or directly next totheve hicle. It may
be the case that objects are highlighted as well
as pedestrians or animals.
The sy stem may be impaired or may not function
in thefo llowing ins tances:
RPo or visibility, e.g. sno w,rain, fog or heavy
spr ay.
RThe windshield is dirty in the vicinity of the
came ra.
RThe camera is fogged up, damaged or cov‐
ered.
RThe infrared camera in thera diator grill is
damaged, dirty, fogged up or co vered.
ROn bends, on hilltops or in dips.
RAt high ambient temp eratures.
Fu nction of pedestrian and animal de tection
of Night View Assist
Night View Assist can de tect ped estri
ans using
typical characteristics, e.g. the body conto urs
and posture of a person standing upright.
Lar geanimals, e.g. deer, co wsor horses, can
also be de tected. Small animals, e.g. dogs or
cats, are not de tected.
Pe destrian and animal de tection is au tomatical ly
switched on when thefo llowing requ irements
are fulfilled:
RNight View Assist is activated.
RThe driving speed is at least 5 mph
(10 km/h).
RIt is dar k.
1NightView Assist display
2Standby symbol for active pedest rian de tec‐
tion
3Highlighting
4Pe destrian de tected
If pedestrian de tection is acti ve,st andby symbol
2 appears. There is no separate symbol for ani‐
mals. De tected pedestrians or animals are high‐
lighted bya colored frame.
200
Driving and parking
turn signal indicatorre mains on, all other de tec‐
te dve hicles are indicated only bytheflashing of
th ere dwa rning lamp.
If yo uove rtake a vehicle quickl y,no warning is
given.
& WARNING Risk of accident despite Blind
Spot Assist
Blind Spot Assist does notreact tovehicles
approaching and overtaking you at a greatly
di fferent speed.
As a result, Blind Spot Assist cannot warn
drivers in this situation.
#Alw ays pay careful attention tothe traf‐
fi c situation and maintain a safe dis‐
ta nce at the side of theve hicle.
Blind Spot Assist and Active Blind Spot Assi st
are only aids. They may failto detect some vehi‐
cles and are no substitute for attentive driving.
Alw ays ensure that there is suf ficient dist anceto
th e side forot her road users and obs tacles. Sy
stem limitations
The sy stem may be limited in thefo llowing situa‐
tions:
Rth e sensors are dirty or co vered
Rpoor visibility, e.g. due tofog, heavy rain,
snow or spr ay
Rnarrow vehicles, e.g. bicycles, are within the
monitoring range
Wa rnings may be issued in er ror when driving
close tocrash barr iers or similar solid lane bor‐
ders. Warnings may be inter rupte d when driving
alongside long vehicles, e.g. truc ks,fo r a pro‐
longed time.
Blind Spot Assist is not operational when reve rse
ge ar is engaged.
Fu nction of brake application (Active Blind
Spot Assist)
If Ac tive Blind Spot Assi stdetects a risk of a side
impact in the monitoring range, a cours e-cor‐
re cting brake application is car ried out. This is
designed tohelp youav oid a collision. The course-cor
recting brake application is availa‐
ble in the speed range between appr oximately
20 mph (30 km/h) and 125mp h (200 km/h).
&
WARNING Risk of accident despite
brake application of Active Blind Spot
Assi st
A cours e-correcting brake application cannot
alw ays pr event a collision.
#Alw aysst eer, brake or accelera teyour‐
self, especially if Active Blind Spot
Assi stwa rnsyo u or makes a course-
co rrecting brake application.
#Alw ays maintain a safe dis tance at the
sides.
& WARNING Risk of accident despite
Ac tive Blind Spot Assi st
Ac tive Blind Spot Assi stdoes not react tothe
fo llowing:
ROver taking vehicles closely on the side,
placing them in the blind spot area.
Driving and parking 203
Active Lane Keeping Assist
Function of Active Lane Keeping Assist
Active Lane Keeping Assist monitors the area in
front of your vehicle bymeans of multifunction
camera 1. Yo
u are warned byvibration pulses in thesteer‐
ing wheel in thefo llowing circums tances:
RAc tive Lane Keeping Assist de tects lane
markings.
RA front wheel passes over the lane markings.
Whe ther a warning is issued and when this
occurs also depends on the selected sensitivity
setting (s tanda rdor adaptive).
If yo ufa ilto adapt your dr ivingst yle, Ac tive Lane
Ke eping Assist can neither reduce therisk of an
accident nor override the la wsof ph ysics. It can‐
not take into account road, weather or traf fic
conditions. Active Lane Keeping Assist is only an
aid. You are responsible forth e dis tance tothe
ve hicle in front, forve hicle speed, for braking in
good time and forst ay ing in your lane.
Ve hicles with Lane Tracking pac kage:if th e
lane markings are solid lines and you do not
re act tothewa rning, a lane-cor recting brake
application can bring theve hicle back into the
original lane.
Ve hicles with Driving Assistance pac kage or
Driving Assistance Plus pa ckage: ifyo u do not re
act tothewa rning, a lane-cor recting brake
application can bring theve hicle back into the
original lane. In the case of a broken lan
e mark‐
ing being de tected, a brake application will only
be made if a vehicle has been de tected in the
adjacent lane. Oncoming vehicles, overtaking
ve hicles and vehicles in adjacent lanes can be
de tected.
The brake application is available in the speed
ra nge between 40 mph (60 km/h) and 120mp h
(200 km/h).
If a lane-cor recting brake application occurs , dis‐
play 1appears in the multifunction displa y.
Driving and parking 205
System limitations
No lane-cor recting brake application occurs in
th efo llowing situations:
RYo u clear lyand actively steer, brake or accel‐
erate.
RYo u ha veswitched on the turn signal indica‐
to r.
RA driving safe ty system inter venes, such as
ESP®, Ac tive Brake Assi stor Active Blind
Spot Assi st.
RYo u ha veadop ted a sporty driving style with
high cornering speeds or high rates of accel‐
eration.
RESP®is deactivated.
RIf a loss of tire pressure or a defective tire
has been de tected and displ ayed.
The sy stem may be impaired or may not function
in thefo llowing situations:
RIf th ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, highly variable
shade conditions, or due torain, sno w,fog or
heavy spr ay.
RThere is glare, e.g. from oncoming traf fic, the
sun or reflections.
RIf th ere is dirt on the windshield in the vicin‐
ity of the multifunction camera or the camera
is mis ted up, damaged or obscured.
RNo or se veral, unclear lane markings are
present for one lane, e.g. near roadwor ks.
RThe lane markings are worn, dark or co vered.
RThe dis tance totheve hicle in front is too
small and the lane markings thus cannot be
de tected.
RThe lane markings change quickl y,e.g. lanes
branch off, cross one ano ther or mer ge.
RThe roadw ayisvery nar row and winding.
Ve hicles with Driving Assistance pac kage or
Driving Assistance Plus pa ckage: Active Lane
Ke eping Assist uses radar sensors tomonitor
se veral areas around theve hicle. If thera dar
sensors in there ar bumper are dirty or co vered
with snow ,th e sy stem may be impaired or may
not function. If an obs tacle in the lane in which
yo u are driving has been de tected, no lane-cor‐
re cting brake application occurs .Ac
tivating Active Lane Keeping Assist
&
WARNING Risk of accident despite
Ac tive Lane Keeping Assist warning
A lane-cor recting brake application cannot
al wa ys bring theve hicle back into the origi‐
nal lane.
#Alw aysst eer, brake or accelera teyour‐
self, especially if Active Lane Keeping
Assist warnsyo u or makes a lane-cor‐
re cting brake application.
&
WARNING Risk of accident despite inter‐
ve ntion of Active Lane Keeping Assist
Ac tive Lane Keeping Assist does not de tect
traf fic conditions or road users. In very rare
cases, the sy stem may make an inappropri‐
ate brake application, e.g. af ter intentional ly
driving over a solid lane marking.
The brake application can be inter rupte d at
any time if yousteer slightly in the opposite
direction.
206 Driving and parking
#Always make sure that there is suf fi‐
cient dist ancetothe side forot her traf‐
fi c or obs tacles.
&
WARNING Risk of accident despite Lane
Ke eping Assist
Lane Keeping Assist cannot always clearly
de tect lane markings.
In such cases, Lane Keeping Assist can:
Rgive an unnecessary warning
Rnot give a warning
#Alw ays pay particular attention tothe
traf fic situation and keep within the
lane, especially if Active Lane Keeping
Assist alerts you.
Re quirements
The driving speed is at least 40 mph (60 km/h).
#Press button 2.
If indicator lamp 1lights up, Lane Keeping
Assist is activated. When lane markings are
de tected, the lines in the assis tance graphic
are shown in white.
Sensitivity of Active Lane Keeping Assist
Wi th th est andard or adaptive setting, you can
influence when thewa rning vibration of Lane
Ke eping Assist take s place. In bo
th thest andard and adaptive settings, no
wa rning vibration occurs in thefo llowing situa‐
tions:
RYo u ha veswitched on the turn signal indica‐
to r.
RA driving safe ty system inter venes, such as
ABS, BAS or ESP®.
In the adaptive setting, there will also be no
wa rning vibration in thefo llowing situations:
RThe vehicle is accelerated or braked consid‐
erably.
RYo usteer actively, e.g. swer vetoavo id an
obs tacle or change lane quickl y.
RYou cut the corner on a sharp bend.
Setting the sensitivity of Active Lane Keep‐
ing Assist
Multimedia sy stem:
,Vehicle.k Assistance.Act.
Lane Keep. Assist
#Select a setting.
Driving and parking 207