2021 MERCEDES-BENZ C-CLASS CABRIOLET lane assist

Also,
the speed is reduced if the turn signal indi‐
cator tochange lanes is swit ched on and one of
th efo llowing situations is de tected:
R Turning off at junctions
R Driving on slowing-down lanes
R Driving on lanes adjacent toslowing-down
lanes
The driver is responsible forch oosing theright
speed and observing other road users. This
applies in particular tojunctions, roundabouts
and traf fic lights, as route-based speed adap ta‐
tion does not brake theve hicle toast andstill.
When route guidance is active, thefirs t speed
adjustment is car ried out automaticall y.Ifthe
turn signal indica tor is switched on, the selected
ro ute is confirmed and fur ther speed adjustment
is activated.
Speed adap tation is cancelled in thefo llowing
cases:
R Ifth e turn signal indicator is switched off
before thero ute event.
R Ifth e driver depresses the accelerator or
brake pedal during the process. Sy
stem limits
Ro ute-based speed adap tation does not take
ri ght of wayre gulations into account. The driver
is responsible for complying with road traf fic
re gulations and driving at a suitable speed.
The speed adap tation made bythe sy stem may
not alw ays be suitable, particular lyin thefo llow‐
ing situations:
R thero ad's course not clear lyvisible
R road nar rowing
R varying maximum permissible speeds in indi‐
vidual lanes, forex ample at tollst ations
R wetro ad sur faces, snow or ice
R when towing a trailer
In these situations the driver must inter vene
acco rding ly. &
WARNING Risk of accident in spi teof
ro ute-based speed adap tation
Ro ute-based speed adap tation can malfunc‐
tion or be temp orarily una vailable in thefo l‐
lowing situations: R
Ifth e driver does not follow the calcula‐
te dro ute
R If map data is not up-to-date or available
R Intheeve nt of roadwor ks
R In bad weather or road conditions
R Ifth e accelera tor pedal is depressed
R Intheeve nt of electronical lydispla yed
speed limitations #
Adapt the speed tothe traf fic situation. Setting
route-based speed adjustment
Re quirements:
R Active Dis tance Assi stDISTRONIC is acti va‐
te d.
Multimedia sy stem:
4 Vehicle 5
k Assistance
5 Speed adjustment #
Activate Oor deacti vate ª the function. Driving and parking
18 5

Ac
tive Steering Assist Fu
nction of Active Steering Assist
Ac tive Steering Assist is only available up to a
speed of 210 km/h. The sy stem helps youto
st ay inthe cent reofthe lane bymeans of mod‐
erate steering inter ventions. Depending on the
speed driven, Active Steering Assist uses the
ve hicles ahead and lane markings as a refer‐
ence.
% Depending on the count ry, in the lo wer
speed range Active Steering Assist can use
th e sur rounding traf fic as a refere nce. If nec‐
essar y,Ac tive Steering Assist can then also
pr ov ide assis tance when driving outside the
centre of the lane, forex ample, toform a
re scue lane.
If th e de tection of lane markings and vehicles
ahead is impaired, Active Steering Assist
switches topassive mode. The sy stem pr ovides
no support in this case.
St atus display of Active Steering Assist in
th e multifunction display
R Ø (gre y): activated and passive
R Ø (gre en): activated and active R
Ø (red): sy stem limits de tected
R Ø (white, red hands): "hands on thesteer‐
ing wheel" prom pt
% During the transition from active topassive
st atus, theØ symbol is shown as
enlar ged and flashing. Once the sy stem is
passive, theØ symbol is shown as gr eyin
th e multifunction displa y.
% Depending on the selected vehicle settings,
Ac tive Steering Assist may be una vailable.
Ste ering and touch de tection
The driver is requiredtokeep their hands on the
st eering wheel at all times and be able tointer‐
ve ne at any time tocor rect the course of the
ve hicle and keep it in lane. The driver must
ex pect a change from active topassive mode or
vice versa at any time. If
th e sy stem de tects that the driver has not
st eered theve hicle for a considerable period of
time or has remo vedth eir hands from thesteer‐
ing wheel, display 1appears. If the driver still
does not steer theve hicle, a warning tone
sounds in addition tothe visual warning mes‐
sage.
If th e driver does not react tothewa rning for a
considerable period, the sy stem can initiate an
emer gency stop (/ page188).
The warning is not issued or is stopped when the
driver gives con firm ation tothe sy stem:
R The driver steers theve hicle. 18 6
Driving and pa rking

R
Depending on the count ry:th e driver
presses a steering wheel button or operates
To uch Control
If Ac tive Steering Assist de tects that a sy stem
limit has been reached, a visual warning is
issued and a warning tone sounds.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 168).
Sy stem limits
Ac tive Steering Assist has a limited steering tor‐
qu efo r lateral guidance. In some cases, the
st eering inter vention is not su fficient tokeep the
ve hicle in the lane or todrive thro ugh exits.
The sy stem may be impaired or may not function
in thefo llowing ins tances:
R The reis poor visibilit y,e.g. due tosno w,rain,
fo g, heavy spr ay, greatly varying light condi‐
tions or strong shado wsonthe car riag ewa y.
R There is glare, e.g. from oncoming traf fic,
di re ct sunlight or reflections.
R Insuf ficient road illumination. R
The windsc reen is dirty, mis ted up, damaged
or co vered in the vicinity of the camera, e.g.
by ast icke r.
R No, or se veral, unclear lane markings are
present for one lane, or the markings change
qu ickl y,forex ample, in a con stru ction area
or junctions.
R The lane markings are wornaw ay, dark or
co vered up, e.g. bydirt or sno w.
R Ifth e dis tance totheve hicle in front is too
short and thus the lane markings cann otbe
de tected.
R The road is nar rowand winding.
R There are obs tacles on the lane or projecting
out into the lane, such as object mar kers.
The sy stem does not pr ovide assis tance in the
fo llowing conditions:
R On tight bends and when turning.
R When crossing junctions.
R Atroundabouts or tollst ations.
R When towing a trailer.
R When the tyre pressure is too lo w. &
WARNING Risk of accident if Active
St eering Assist unexpectedly stops func‐
tioning
If th e sy stem limits of Active Steering Assist
are reached there is no guarantee that the
sy stem will remain active or will keep the
ve hicle in lane. #
Alw ayske ep your hands on thesteering
wheel and obser vethe tra ffic carefull y. #
Alw aysst eer theve hicle paying atten‐
tion totraf fic conditions. &
WARNING Risk of accident if Active
St eering Assist unexpectedly inter venes
The de tection of lane markings and objects
may malfunction and cause unexpected
st eering inter ventions. #
Steer according totraf fic conditions. Ac
tivating Active Steering Assist
Re quirements:
R ESP ®
must be activated, but not inter vening. Driving and pa
rking 187

Evasive
Steering Assist (only vehicles with
Driving Assistance Package)
Evasi veSteering Assist has thefo llowing charac‐
te rist ics:
R The ability todetect stationary or moving
pedestrians.
R Assis tance thro ugh po wer-assis tedsteering if
it de tects a swerving manoeuvre.
R Activation byan abrupt steering mo vement
during a swerving manoeuvre.
R Assis tance du ring swerving and stra ightening
of theve hicle.
R Reaction from a speed of appr oximately
20 km/h up toa speed of appr oximately
70 km/h.
Yo u can pr eventthe assis tance at any time by
actively steering.
Cornering function (only vehicles with Driv‐
ing Assistance Package)
If th e sy stem de tects a risk of a collision with an
oncoming vehicle when turning across an
oncoming lane, autonomous braking can be initi‐ ated at speeds below
15km/h be fore you ha ve
left the lane in which you are driving. &
WARNING Risk of accident despi teEva‐
si ve Steering Assist
Evasive Steering Assist cann otalw aysre cog‐
nise objects or compl extraf fic situations
clear ly.
Moreo ver,th esteering support pr ovided by
Evasive Steering Assist is not suf ficient to
avo id a collision. #
Alw ays pay careful attention tothe traf‐
fi c situation; do not rely on Ev asive
St eering Assist alone. #
Be prepared tobrake or swer veif nec‐
essar y. #
End the support byactively steering in
non-critical situations. #
Drive at an appropriate speed if there
are pedestrians close tothe path of
yo ur vehicle. Sy
stem limits
Fu ll sy stem per form ance is not available for a
fe w seconds af ter switching on the ignition or
af te r driving off.
If Ac tive Brake Assi stis impaired or inope rative
due toa malfunction, theÄ warning lamp
appears in the multifunction displa y.
The sy stem may be impaired or may not func‐
tion, particular lyin thefo llowing situations:
R In sno w,rain, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatlyvarying
light conditions.
R Ifth e sensors are dirty, mis ted up, damaged
or co vered.
R Ifth e sensors are impaired due tointer fer‐
ence from other radar sources, e.g. strong
ra dar reflections in multi-s torey car par ks.
R If a loss of tyre pressure or a defective tyre
has been de tected and displ ayed.
R In complex tra ffic situations where objects
cannot alw ays be clear lyidentified.
R If pedestrians or vehicles mo vequickly into
th e sensor de tection range. 19 2
Driving and pa rking

can specify whe
ther thewa rning is tobe just a
visual warning or an acoustic one as well.
Display in the Instrument Display In
stru ment Display in the widescreen cockpit
1 Maximum permissible speed
2 Maximum permissible speed when there is a
re striction
3 Additional sign with restriction
% Ve
hicles with a standard Instrument Dis‐
pla y:a+ symbol next toa traf fic sign in the
Instrument Display indicates that additional
traf fic signs ha vebeen de tected. These can also be displ
ayed in the media display and
optionally in the head-up displa y.
If Traf fic Sign Assi stcannot de term ine the maxi‐
mum permissible speed (e.g. due tomissing
signs), thefo llowing display appears in the
Instrument Display: This is display
ed continuously if theve hicle is in
a country where Traf fic Sign Assi stis not sup‐
por ted. Traf fic Sign Assi stis not available in all
countries.
% Also obse rveth e information on display mes‐
sages in Traf fic Sign Assi st (/ page 430).
Wa rning when app roaching pedestrian cross‐
ings (vehicles with Driving AssistancePack‐
age)
The sy stem can warnyou if you approach a
pedestrian crossing with your vehicle. The ¯
Watch for pedestrians message appearsinthe
instrument clus ter. The
warning occurs only if appropriate traf fic
signs or lane markings are de tected and pedes‐
trians are present in the danger zone.
Sy stem limits
The sy stem may be impaired or may not function
particular lyin thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, if there are
highly variable shade conditions or in rain,
sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming traf fic,
di re ct sunlight or reflections.
R Ifth e windscreen in the area of the multi‐
function camera is dirty, or if the camera is
mis ted up, damaged or co vered.
R Ifth e tra ffic signs are hard todetect, e.g. due
to dirt, snow or insuf ficient lighting, or
because they are co vered.
R Ifth e information in the navigation sy stem's
digital map is incor rect or out-of-da te.
R Ifth e signs are ambiguous, e.g. road signs in
ro adwor ksor in adjacent lanes. 194
Driving and pa rking

&
WARNING Risk of accident despi teBlind
Spot Assi st
Blind Spot Assi stdoes not react tovehicles
approaching and overtaking you at a greatly
di fferent speed.
Blind Spot Assist cann otwa rndrivers 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. Obser
vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 168).
Exit warning
The exitwa rning is an additional function of
Blind Spot Assist and can warnvehicle occu‐
pants about approaching vehicles when leaving
th eve hicle when stationar y. &
WARNING Risk of accident despi teexit
wa rning
The exitwa rning neither reacts tostationary
objects nor tovehicles approaching you at a
great lydif fering speed.
The exitwa rning cannot warndrivers in these
situations. #
Alw ays pay particular attention tothe
traf fic situation when opening the doors
and make sure there is suf ficient clear‐
ance. If
th ere is a vehicle in the monitoring range, this
is indicated in the outside mir ror.If a vehicle
occupant opens the door on the side with the
wa rning, a warning tone sounds and thewa rning
lamp in the outside mir rorst arts toflash.
This additional function is on lyavailable when
Blind Spot Assist is active. When theex itwa rn‐
ing is activated, it can warnvehicle occupants
fo r up tothre e minutes af ter switching the igni‐
tion off. The exitwa rning is no longer available
once thewa rning lamp in the outside mir ror
fl ashes thre e times. The
exitwa rning is only an aid and not a substi‐
tute forth e attention of vehicle occupants. The
re sponsibility for opening and closing the doors
and for leaving theve hicle remains with theve hi‐
cle occupants.
Sy stem limits
Blind Spot Assist and Active Blind Spot Assi st
may be limi ted in thefo llowing situations, in par‐
ticular:
R ifth ere is dirt on the sensors or the sensors
are obscured
R in poor visibility, e.g. due tofog, heavy rain or
snow
R ifth ere are nar row vehicles, e.g. bicycles or
mo torbikes
R ifth ero ad has very wide or nar rowlanes
R ifve hicles are not driving in the middle of
th eir lane
Wa rnings may be issued in er ror when driving
close tocrash ba rriers or similar continuous lane
borders. Alw ays make sure that there is suf fi‐
cient di stance tothe side forot her traf fic or
obs tacles. 19 6
Driving and pa rking

Either a cou
rse-co rrecting brake application
appropriate tothe driving situation, or none at
all, may occur in thefo llowing situations:
R Vehicles or obs tacles, e.g. crash ba rriers, are
located on bo thsides of your vehicle.
R Ave hicle approaches too closely on the side.
R You ha veadop ted a sporty driving style with
high cornering speeds.
R You brake or accelerate significantl y.
R A driving sa fety sy stem inter venes, e.g. ESP ®
or Active Brake Assi st.
R ESP ®
is deacti vated.
R A loss of tyre pressure or a defective tyre is
de tected.
R You are driving with a trailer and the electri‐
cal connection tothe trailer hitch has been
cor rectly es tablished. Ac
tivating/deactivating Blind Spot Assi stor
Ac tive Blind Spot Assi st
Multimedia sy stem:
4 Vehicle 5
k Assistance
5 Blind Spot Assist #
Activate Oor deacti vate ª the function. Ac
tive Lane Keeping Assist Fu
nction of Active Lane Keeping Assist
Ac tive Lane Keeping Assist monitors the area in
front of your vehicle bymeans of the multifunc‐
tion camera (/ page168). It se rves toprotect
yo u against unin tentionally le aving your lane.
Yo u will be warned byvibration pulses in the
st eering wheel and guided bya course-cor rect‐
ing brake application ba ckinto your lane.
Ac tive Lane Keeping Assist is available in the
speed range between 60 km/h and 200 km/h.
Ac tive Lane Keeping Assist can neither reduce
th erisk of an accident if youfa ilto adapt your
driving style nor override the la wsof ph ysics. It
cannot take into account road, weather or traf fic
conditions. Active Lane Keeping Assist is only an aid.
You are responsible for maintaining a safe
dis tance totheve hicle in front, forve hicle
speed, for braking in good time and forst ay ing
in lane. If a lane-cor
recting brake application occu rs, dis‐
play 1appears in the multifunction displa y.
The sy stem does not apply the brake if you acti‐
va te the turn signal indicator.
Ve hicles with Driving Assistance Package: if
th e sy stem de tects an obs tacle, su chas ano ther
ve hicle in the adjacent lane, it will apply the
brake rega rdless of the turn signal indicator. 19 8
Driving and pa rking

Yo
u are warned byvibrations in thesteering
wheel in thefo llowing circums tances:
R Active Lane Keeping Assist de tects a lane
marking.
R A front wheel drives over this lane marking.
Conditions for a course-cor recting brake
application (vehicles without Driving Assis‐
tance Package)
Lane markings weredetected on bo thsides of
th e lane. The front wheel drives over a continu‐
ous lane marking.
% A brake application may be inter rupte d at
any time if yousteer slightly in the opposite
direction.
Conditions for a course-cor recting brake
application (vehicles with Driving Assistance
Pa ckage)
R A continuous lane marking was de tected and
driven over with the front wheel.
R A lane marking and an approaching vehicle,
an overtaking vehicle or vehicles driving par‐
allel to yo urvehicle weredetected in the adjacent lane. The front wheel drives
over
th e lane marking.
% A brake application may be inter rupte d at
any time if yousteer slightly in the opposite
direction.
Sy stem limits
No lane-cor recting brake application occu rsin
th efo llowing situations:
R You clear lyand actively steer, brake or accel‐
erate.
R If a driving saf ety sy stem inter venes, su chas
ESP ®
,Ac tive Brake Assi stor Active Blind
Spot Assi st.
R You ha veadop ted a sporty driving style with
high cornering speeds or high rates of accel‐
eration.
R When ESP ®
is deactivated.
R When driving with a trailer, the electrical con‐
nection tothe trailer has been cor rectly
es tablished.
R If a loss of tyre pressure or a defective tyre is
de tected and displ ayed. If
yo u deactivate theAc tive Lane Keeping Assist
wa rning and the lane markings cann otbe clearly
de tected, it is possible that no lane-cor recting
brake application take s place (/ page 201).
The sy stem may be impaired or may not function
particular lyin thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, if there are
highly variable shade conditions or in rain,
sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming traf fic,
th e sun or reflections.
R Ifth e windscreen in the area of the multi‐
function camera is dirty, or if the camera is
mis ted up, damaged or co vered.
R Ifth ere are no lane markings, or se veral
unclear lane markings are present for one
lane, e.g. around roadwor ks.
R Ifth e lane markings are worn, dark or cov‐
ered.
R Ifth e dis tance totheve hicle in front is too
short and thus the lane markings cann otbe
de tected. Driving and pa
rking 19 9