Obser
vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 209).
Syst
Syst em limits
em limits
The system limits of Tra1c Sign Assist apply to
th e de tection of tra1c signs (/ page 239).
Speed limits below 20 km/h are not automatical ly
adop tedby the system as the stored speed. Tem-
porary speed restrictions (e .g.fo r a cer tain time
or due towe ather conditions) cann otbe proper ly
de tected bythe system. The maximum permissi-
ble speed applying toave hicle with a trailer is not
de tected bythe system.
Ad just the speed in these situations. &
W
WARNING
ARNING Risk of accident due toActive
Speed Limit Assist ada pting theve hicle's
speed
The speed adop tedby Active Speed Limit
Assist may be too high or incor rect in some
individual cases, such as:
R at speed limits below 20 km/h R
inwe t conditions or in fog
R when towing a trailer #
Ensure that the driven speed complies
with tra1c regulations. #
Adjust the driving speed tosuit cur rent
tra1c and weather conditions. F
F
unction of r
unction of r out
oute-based speed adapt
e-based speed adapt ation
ation
When Active Distance Assist DISTRONIC is acti va-
te d, theve hicle speed will be adap ted accordingly
to thero ute events ahead. Depending on the drive
prog ram selected, theve hicle neg otiates a route
ev ent ahead in an economical, comfor table or
dynamic manner. When thero ute event has been
passed, theve hicle accelerates again tothe
stored speed. The set distance totheve hicle in
front, vehicles de tected ahead and speed restric-
tions ahead are take n into account.
Yo u can activate and deactivate route-based
speed adap tation in the multimedia system
(/ page 229).
The following route events are take n into account:
R Bends R
T-junctions, roundabouts and toll stations
R Turns and exits
R Tra1c jams ahead (only with Live Tra1c Infor-
mation )
% When theto ll station is reached, Active Dis-
ta nce Assist DISTRONIC ado ptsth e speed as
th e stored speed.
Also, the speed is reduced if the turn signal indi-
cator tochange lanes is switched on and one of
th efo llowing situations is de tected:
R Turning 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
tra1c lights, as route-based speed adap tation
does not brake theve hicle toa standstill.
When route guidance is active, the /rst speed
adjustment is car ried out automaticall y.Ifth e turn
signal indicator is switched on, the selected route 228
228
Driving and parking
If
th e system de tects that the driver has not
steered theve hicle for a considerable period of
time or has remo vedth eir hands from the steering
wheel, display 1appears. If the driver still does
not steer theve hicle, a warning tone sounds in
addition tothe visual warning message.
If th e driver does not react tothewa rning for a
considerable period, the system can initiate an
emer gency stop (/ page 232).
If th e driver steers, no warning is issued, or the
wa rning is ended.
If Ac tive Steering Assist de tects that a system
limit has been reached, a visual warning is issued
and a warning tone sounds. Obser
vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 209).
Syst
Syst em limits
em limits
Ac tive Steering Assist has a limited steering tor-
qu efo r lateral guidance. In some cases, the steer-
ing inter vention is not su1cient tokeep theve hi-
cle in the lane or todrive thro ugh exits.
The system may be impaired or may not function
in thefo llowing instances:
R There is poor visibility, e.g. due tosno w,rain,
fo g, heavy spr ay,gr eatly varying light condi-
tions or strong shadow s onthe car riag ewa y.
R There is glare, e.g. from oncoming tra1c,
di re ct sunlight or re0ections.
R Insu1cient road illumination.
R The windscreen is dirty, mis ted up, damaged
or co vered in the vicinity of the camera, e.g.
by a stic ker.
R No, or se veral, unclear lane markings are pres-
ent for one lane, or the markings change
qu ickl y,fore xamp le, in a construction area or
junctions. R
The lane markings are wornawa y,dark or co v-
ered up, e.g. bydirt or sno w.
R Ifth e distance totheve hicle in front is too
short and thus the lane markings cannot be
de tected.
R The road is nar row and winding.
R There are obs tacles on the lane or projecting
out into the lane, suchas object mar kers.
The system does not pr ovide assistance in thefo l-
lowing conditions:
R On tight bends and when turning.
R When crossing junctions.
R Atroundabouts or toll stations.
R When towing a trailer.
R When the tyre pressure is too lo w. &
W WARNI NG
ARNI NGRisk of accident if Active Steer-
ing Assist unexpectedly stops functioning
If th e system limits of Active Steering Assist
are reached there is no guarantee that the
system will remain active or will keep theve hi-
cle in lane. Driving and parking
231
231
#
Alwayske ep your hands on the steering
wheel and obser vethe tra1c carefull y.#
Always steer theve hicle paying attention
to tra1c conditions. &
W
WARNI NG
ARNI NGRisk of accident if Active Steer-
ing Assist unexpectedly inter venes
The de tection of lane markings and objects
may malfunction and cause unexpected steer-
ing inter ventions. #
Steer according totra1c conditions. A A
ctiv
ctiv ating/deactiv
ating/deactiv ating A
ating Activ
ctiveSt
e St eer
eer ing Assist
ing Assist
R
R eq
eq uir
uir ements:
ements:
R ESP ®
is activated, but is not inter vening.
R Active Distance Assist DISTRONIC is acti va-
te d.
Multimedia system: 4 © 5
Settings 5
Quick access #
Select aAct. Steer. Asst . F
F
unction of A
unction of A ctiv
ctive Emerg
e Emerg encySt
ency Stop Assist
op Assist If
th e system de tects that the driver has not
steered theve hicle for a considerable period of
time or has remo vedth eir hands from the steering
wheel, display 1appears in the Instrument Dis-
pla y.Ifth e driver still does not steer theve hicle,
or gives no con/rmation tothe system, a warning
to ne sounds in addition tothe visual warning mes-
sage.
If th e driver still does not respond tothewa rning,
th eBeginning emergency stop message appears
in the Instrument Displa y.Ifth e driver still does
not respond, Active Distance Assist DISTRONIC re
duces the speed. The vehicle is decelerated in
stages toa standstill.
Depending on the countr y,at speeds below
60 km/h the hazard warning lights switch on
automaticall y.
When theve hicle is stationar y,thefo llowing
actions are car ried out:
R The vehicle is secured with the electric par k-
ing brake.
R Active Distance Assist DISTRONIC is ended.
R The vehicle is unloc ked.
R If possible, an emer gency call is placed tothe
Mercedes-Benz eme rgency call centre.
The driver can cancel the deceleration at any time
by per form ing one of thefo llowing actions:
R Steering
R Braking or accelerating
R Deactivating Active Distance Assist
DISTRONIC 232 232
Driving and parking
A
A
ctiv
ctiv e Br
e Br ak
ake Assist
e Assist F
F
unction of A
unction of A ctiv
ctive Br
e Br ak
ake Assist
e Assist
Ac tive Brake Assist consists of thefo llowing func-
tions:
R Distance warning function
R Autonomous braking function
R Situation-dependent braking assistance
R V
V ehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e: Eva-
sive Steering Assist and cornering function
Ac tive Brake Assist can help youto minimise the
ri sk of a collision with vehicles, cyclists or pedes-
trians or toreduce the e.ects of such a collision.
If Ac tive Brake Assist has de tected a risk of colli-
sion, a warning tone sounds and theL dis-
ta nce warning lamp lights up in the inst rument
cluster.
If yo u do not react tothewa rning, autonomous
braking can be initiated in critical situations.
In especially critical situations, Active Brake Assist
can initiate autonomous braking directl y.In this
case, thewa rning lamp and warning tone occur
simultaneously with the braking application. If
yo u apply the brake yourself in a critical situa-
tion or apply the brake during autonomous brak-
ing, situation-dependent braking assistance
occurs. The brake pressure increases up tomaxi-
mum full-s top braking if necessar y.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 209). If autonomous braking or situation-dependent
braking assistance has occur
red, display 1
appears in the Instrument Display and then auto-
matically goes out aTer a short time. &
W WARNING
ARNING Risk of an accident caused by
limited de tection per form ance of Active
Brake Assist
Ac tive Brake Assist cannot alw ays clear lyiden-
tify objects and complex tra1c situations.
In such cases, Active Brake Assist might:
R Give a warning or brake without reason
R Not give a warning or not brake
Ac tive Brake Assist is only an aid. The driver is
re sponsible for maintaining a su1ciently safe
distance totheve hicle in front, vehicle speed
and for braking in good time. #
Always pay careful attention tothe tra1c
situation; do not relyonActive Brake
Assist alone. #
Be prepa redto brake or swer veif neces-
sar y. If
Ac tive Brake Assist is deactivated or the func-
tions are restric ted, e.g. due toactivation of
ano ther driving system, theê display message
appears in the driver's displa y. Driving and parking
233 233
If
th e system is una vailable due todirty or dam-
aged sensors or due toafa ult, or if the functions
are restric ted, theÓ warning lamp appears in
th e driver's displa y.
Also obser vethe system limits of Active Brake
Assist.
The individual subfunctions ar
The individual subfunctions ar eav
e av ailable in v ailable in v ar
ar i-
i-
ous speed r
ous speed r ang
anges:
es:
The dis tance warning function can issue a warn-
ing in thefo llowing situations:
R From appr oximately 30 km/h, if over se veral
seconds the distance maintained totheve hi-
cle tr avelling in front is insu1cient forthe
driven speed, theL distance warning lamp
lights up in the inst rument cluster.
R From appr oximately 7 km/h, if your vehicle is
critically close toave hicle, cyclist or pedes-
trian, you will hear an intermittent warning
to ne and theL distance warning lamp
lights up in the inst rument cluster.
Brake immediately or take evasive action, pr ovi-
ded it is safe todo so and the tra1c situation
allo ws th is. Dist
Dist
ance w
ance w ar
arning function (v
ning function (v ehicles wit
ehicles without Dr
hout Driv-
iv-
ing Assist
ing Assist ance P
ance Pack
ackag
age)
e)
The distance warning function can aid you in the
fo llowing situations with an intermittent warning
to ne and a warning lamp:
R at speeds up toappr oximately 250 km/h
when approaching vehicles ahead
R at speeds up toappr oximately 80 km/h when
approaching stationary vehicles, pedestrians
wa lking in the direction of tr avel and cyclists
ahead
R at speeds up toappr oximately 60 km/h when
approaching crossing pedestrians
Dist
Dist ance w
ance w ar
arning function (v
ning function (v ehicles wit
ehicles with Dr
h Driving
iving
Assist
Assist ance P
ance P ack
ackag
ag e)
e)
The distance warning function can aid you in the
fo llowing situations with an intermittent warning
to ne and a warning lamp:
R at speeds up toappr oximately 250 km/h
when approaching vehicles ahead
R at speeds up toappr oximately 100 km/h
when approaching stationary vehicles R
at speeds up toappr oximately 80 km/h when
approaching moving pedestrians and cyclists
ahead
R at speeds up toappr oximately 70 km/h when
approaching stationary pedestrians, crossing
ve hicles and stationary and crossing cyclists
A
A ut
ut onomous br
onomous br aking function (v
aking function (v ehicles wit
ehicles without
hout
Dr
Dr iving Assist
iving Assist ance P
ance Pack
ackag
age)
e)
If th eve hicle is tr avelling at speeds abo veappr ox-
imately 7 km/h, the autonomous braking function
may inter vene in thefo llowing situations:
R at speeds up toappr oximately 200 km/h
when approaching vehicles ahead
R at speeds up toappr oximately 80 km/h when
approaching cyclists ahead
R at speeds up toappr oximately 60 km/h when
approaching stationary vehicles or moving
pedestrians 234
234
Driving and parking
R
Activation byan abrupt steering mo vement
during a swerving manoeuv re.
R Assistance during swerving and straigh tening
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 assistance at any time by
actively steering.
Cor
Cor ner nering function (onl
ing function (onl y v
y vehicles wit
ehicles wit h Dr
h Driving
iving
Assist
Assist ance P
ance P ack
ackag
age)
e)
If th e system de tects a risk of a collision with an
oncoming vehicle when turning across an oncom-
ing lane, autonomous braking can be initiated at
speeds below 15 km/h before you ha veleT the
lane in which you are driving. &
W
WARNING
ARNING Risk of accident despite Eva-
sive Steering Assist
Evasive Steering Assist cannot alw aysre cog-
nise objects or complex tra1c situations
clear ly. Moreo
ver,th e steering support pr ovided by
Evasive Steering Assist is not su1cient to
avo id a collision. #
Always pay careful attention tothe tra1c
situation; do not relyon Evasive Steering
Assist alone. #
Be prepared tobrake or swer veif neces-
sar y. #
End the support byactively steering in
non-critical situations. #
Drive at an appropriate speed if there
are pedestrians close tothe path of your
ve hicle. Syst
Syst
em limits
em limits
Fu ll system per form ance is not yetav ailable for a
few seconds aTer switching on theve hicle or aTer
driving o..
The system may be impaired or may not function,
particular lyin thefo llowing situations:
R In sno w,rain, fog, heavy spr ay, if there is glare,
in direct sunlight or in greatly varying light
conditions. R
Ifth e sensors are dirty, misted up, damaged or
co vered.
R Ifth e sensors are impaired due tointer fere nce
from other radar sources, e.g. strong radar
re 0ections in multi-s tore y car par ks.
R If a loss of tyre pressure or a defecti vetyre
has been de tected and displa yed.
R In complex tra1c situations where objects
cannot alw ays be clear lyidenti/ed.
R If pedestrians or vehicles mo vequickly in to
th e sensor de tection range.
R If pedestrians are hidden by other objects.
R Ifth e typical outline of a pedestrian cannot be
distinguished from the backg round.
R If a pedestrian is not de tected as such, e.g.
due tospecial clo thing or other objects.
R Ifth e driver's seat belt is not fastened.
R On bends wi tha tight radius. 236 236
Driving and parking
1
Perm issible speed
2 Perm issible speed when there is a restriction
3 Additional sign with restriction
If Speed Limit Assist cannot de term ine the cur-
re nt maximum permissible speed (e.g. due to
missing signs), thefo llowing display appears in
th e Instrument Displa y:This is displa
yed continuously if theve hicle is in a
country where Speed Limit Assist is not suppor- te
d. Speed Limit Assist is not available in all coun-
tries.
Syst
Syst em limits
em limits
The system may be impaired or may not function
in thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsu1cient
illumination of thero ad, highly variable shade
conditions, rain, sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming tra1c,
direct sunlight or re0ections.
R Ifth ere is dirt on the windscreen in the vicinity
of the multifunction camera or if the camera is
misted up, damaged or obscured.
R Ifth e tra1c signs are hard todetect, e.g. due
to dirt, snow or insu1cient lighting, or
because they are co vered.
R Ifyo u turn sharply when passing tra1c signs
outside the camera's /eld of vision. Se Se
tting Speed Limit Assist tting Speed Limit Assist
Multimedia system:
4 © 5
Settings 5
Assistance
5 Speed Limit Assist
A
A djusting t
djusting t he type of w
he type of w ar
arning
ning #
Select Visual & audible ,Visual orNone.
A
A djus
djus ting t
ting t he w
he war
arning t
ning t hr
hreshold
eshold
This value de term ines the speed at which a warn-
ing is issued when exceeded. #
Select Warning threshold. #
Set the desired speed.
% If one of thefo llowing systems is activated,
th e speed de tected can be manual lyadop ted
as the speed limit:
R Active Distance Assist DISTRONIC
R Cruise control
R Variable limi ter
Fu rther information (/ page 225).238
238
Driving and parking
If
Tra1c Sign Assist cann otdeterm ine the maxi-
mum permissible speed (e.g. due tomissing
signs), thefo llowing display appears in the Instru-
ment Displa y: This is displa
yed continuously if theve hicle is in a
country where Tra1c Sign Assist is not suppor ted.
Tr a1c Sign Assist is not available in all countries.
% Also obser vethe information on display mes-
sages in Tra1c Sign Assist (/ page 412).
W
W ar
ar ning when appr
ning when appr oac
oaching pedes
hing pedes tr
trian cr
ian cr ossings
ossings
(v
(v ehicles wit
ehicles wit h Dr
h Dr iving Assist
iving Assist ance P
ance Pack
ackag
ag e)
e)
The system can warnyou if you approach a
pedestrian crossing with your vehicle. The ¯
Watch for pedestrians message appears inthe
inst rument clus ter.
The warning occurs only if appropriate tra1c
signs or lane markings are de tected and pedes-
trians are present in the danger zone. Syst
Syst em limits
em limits
The system may be impaired or may not function
particular lyin thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsu1cient
illumination of thero ad, highly variable shade
conditions, rain, sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming tra1c,
direct sunlight or re0ections.
R Ifth ere is dirt on the windscreen in the vicinity
of the multifunction camera or if the camera is
misted up, damaged or obscured.
R Ifth e tra1c signs are hard todetect, e.g. due
to dirt, snow or insu1cient lighting, or
because they are co vered.
R Ifth e information in the navigation system's
digital map is incor rect or out-of-date.
R If signs are ambiguous, e.g. road signs in road-
wo rks or in adjacent lanes.
R Ifyo u turn sharply when passing tra1c signs
outside the camera's /eld of vision. Se
Se tting tting Tr
Tra1c
a1c Sign Assist
Sign Assist
R
R eq
eq uir
uir ements:
ements:
R Onl
Only v
y vehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e:
Ac tive Distance Assist DISTRONIC and ECO
Assist must be acti vatedfo rth e automatic
adoption of speed limits.
Multimedia system: 4 © 5
Settings 5
Assistance
5 Traffic Sign Assist
A
A ctiv
ctiv ating or deactiv
ating or deactiv ating aut
ating automatic adop
omatic adop tion of
tion of
speed limits (onl
speed limits (onl y v
y vehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance
ance
P
P ack
ack ag
age)
e) #
Select Adopt limit. #
Switch the function on or o..
The speed limits de tected byTra1c Sign
Assist are automatically adop tedby Active
Distance Assist DISTRONIC.
% If one of thefo llowing systems is activated,
th e de tected speed can be manual lyadop ted
as the speed limit:
R Active Distance Assist DISTRONIC
R Cruise control 240
240
Driving and parking