2018 MERCEDES-BENZ S CLASS turn signal

Cornering light
Cornering light function
Cornering light impr ove s th e illumination of th e
ro ad ove r a wide angle in th e turning direction,
enabling better visibility in tight bends, fo r ex am‐
ple. It can on ly be activated when low beam is
swit ch ed on.
The function is active: R
At speeds below 25 mp h (40 km/h) when
th e turn signal light is switched on or th e
st eering wheel is turned. R
At speeds between 25 mp h (40 km/h) and
45 mp h (70 km/h) when th e st eering wheel
is turned.
Tr af fi c circle and intersection function: th e
cornering light is acti va te d on bo th sides th ro ugh
an ev aluation of th e cur re nt GPS position of th e
ve hicle. It re mains active until af te r th e ve hicle
has left th e traf fi c circle or th e intersection.
Ad aptive Highbeam Assist
Fu nction of Ad aptive Highbeam Assist
q
WA RNING Risk of accident despi te
Ad aptive Highbeam Assist
Ad aptive Highbeam Assist does not re cog‐
nize th e fo llowing ro ad users:R
Ro ad users without lights, e.g. pedes‐
trians R
Ro ad users with poor lighting, e.g.
cyclists R
Ro ad users whose lighting is obstructed,
e.g. by a bar ri er On ve ry ra re occasions, Ad aptive Highbeam
Assist may fa il to re cognize ot her ro ad users
with th eir ow n lighting, or may re cognize
th em to o late.
In th ese or similar situations, th e automatic
high beam is not deactivated or is activated
despite th e presence of ot her ro ad users.

Ac tive Di st ance Assist DI STRO NIC
Fu nction of Ac tive Di st ance Assist
DI STRO NIC
Ac tive Dis ta nce Assi st DISTRONIC maintains th e
set speed on free-flowing ro ads. If ve hicles
ahead are de te cted, th e set dis ta nce is main‐
ta ined, if necessary until th e ve hicle comes to a
halt. The ve hicle accelerates or brakes depend‐
ing on th e dis ta nce to th e ve hicle in front and
th e set speed. Speed (in th e ra nge between
15 mp h (2 0 km/h) and 13 0 mp h (2 10 km/h))
and th e dis ta nce to th e ve hicle ahead are set
and sa ve d on th e st eering wheel. Other fe atures of Ac tive Dis ta nce Assi st
DISTRONIC: R
Ad justs th e driving st yl e depending on th e
selected drive program (fuel-saving, comfort‐
able or dynamic) ( →
page 17 2)R
Re sponds in urban speed ra nges to st ation‐
ary ve hicles (e xc ept bicycles, mo to rc yc les
and pedestrians) if conditions are suf fi cient
to enable de te ction. R
Initiates ra pid acceleration to th e st ored
speed, if th e turn signal indicator is switched
on to ch ange to th e ov er tak ing lane.R
Ta ke s one-sided ove rt aking re st ri ctions into
account on free wa ys or on multi-lane ro ads
with separate car ri ag ewa ys .
Ve hicles with Ac tive Pa rk ing Assis t: if th e ve hicle
has been braked to a st andstill on multi-lane,
separate car ri ag ewa ys by Ac tive Dis ta nce Assi st
DISTRONIC, it can au to matically fo llow th e ve hi‐
cle in front driving off again, within 30 seconds.
If a crit ical situation is de te cted when driving off,
a visual and acoustic wa rn ing is given indicating
th at th e driver must now ta ke control of th e ve hi‐
cle. The ve hicle is not accelerated any fur th er. Ac tive Dis ta nce Assi st DISTRONIC is only an aid.
The driver is re sponsible fo r th e dis ta nce to th e
ve hicle in front, fo r ve hicle speed and fo r braking
in good time.
Sy st em limitations
The sy st em may be impaired or may not function
in th e fo llowing ins ta nces, fo r ex ample: R
In sn ow , ra in, fo g, heavy spr ay , if th ere is
gl are, in direct sunlight or in great ly va ry ing
ambient light. R
The windshield in th e area of th e camera is
dirty, fo gged up, damaged or co ve re d.R
If th e ra dar sensors are dirty or co ve re d.R
On slippery ro ads, braking or accelerating
can cause th e drive wheels to lose traction
and th e ve hicle could th en skid. R
In parking ga ra ge s or on ro ads with st eep
uphill or downhill gradients.
Do not use Ac tive Dis ta nce Assi st DISTRONIC in
th ese situations. Driving and parking 19 9

If th e sy st em re aches a sy st em limitation or th e
driver has not st eered th e ve hicle fo r a consider‐
able period of time or has re mo ve d th eir hands
from th e st eering wheel, th e sy st em will,
depending on th e situation, fi rs t alert th e driver
with a visual wa rn ing. Display 1 appears in th e
multifunction displa y. If th e driver st ill does not
st eer th e ve hicle himself or herself, or st ill has
not ta ke n hold of th e st eering wheel, a re peated
wa rn ing to ne sounds in addition to th e visual
wa rn ing message to re mind th e driver to ta ke
control of th e ve hicle.
The wa rn ing message does not appear or disap‐
pears if one of th e fo llowing conditions are me t:R
The driver st eers th e ve hicle. R
The driver presses a st eering wheel button or
operates To uch Control.
Ac tive St eering Assist is only an aid. The driver is
re sponsible fo r th e dis ta nce to th e ve hicle in
front, fo r ve hicle speed, fo r braking in good time
and fo r st ay ing in lane. Before ch anging lanes,
th e driver must make sure th at th e neighboring
lane is free (glance ov er th e shoulder).
Sy st em limitations
Ac tive St eering Assist has a limited st eering to r‐
qu e fo r lateral guidance. In some cases, th e
st eering inter ve ntion is not su ff icient to ke ep th e
ve hicle in th e lan e or to dr ive past ex its. Ac tive
St eering Assist cann ot pr ov ide th e driver with
st eering assis ta nce at traf fi c circles, T- intersec‐
tions, intersections, to ll st ations or turnings, fo r
ex ample.
The sy st em may be impaired or may not function
in th e fo llowing ins ta nces:R
In sno w, ra in, fo g, heavy spr ay , if th ere is
gl are or direct sunlight or if th ere are greatly
va ry ing ambient light or re fl ections, or stro ng
shado ws on th e ro ad.R
Insuf fi cient ro ad illumination. R
The windshield in th e area of th e camera is
dirty, fo gged up, damaged or co ve re d.R
Absence of lane markings, or se ve ra l unclear
lane markings, or if th e markings ch ange ra p‐
idl y. R
The dis ta nce to th e ve hicle in front is to o
small and th e lane markings th us cannot be
de te cted. R
The ro ad is nar row and winding. R
Obs ta cles on th e lane or projecting out into
th e lane.
The sy st em does not pr ov ide assis ta nce in th e
fo llowing conditions: R
On tight bends, traf fi c circles and when turn‐
ing. R
If yo u act iv ely ch ange lane without swit ch ing
on th e turn signal indicator. Driving and parking 205

If no ve hicle is de te cted in th e adjacent lane and
a lane ch ange is permit te d, th e st eering wheel
symbol and th e ar row are shown in green 2 .
The /DQH &KDQJH WR WKH /HIW message appears,
fo r ex ample. If Ac tive Lane Change Assi st is acti‐
va te d with th e turn signal indicator but a lane
ch ange is not immediately possible, th e st eering
wheel symbol re mains green and th e ar ro w
appears gr ay 1 . When th e lane ch ange suppo rt
st arts, th e turn signal indicator is automatically
activated. If a lane ch ange is not possible within
th e defined length of time, th e ar row fa des out
and a new lane ch ange must be initiated. An
immediate lane ch ange is on ly possible on free‐
wa y section s without speed limits . If th e sy st em is impaired, Ac tive Lane Change
Assi st may be canceled. If it is canceled th e
/DQH &KDQJH &DQFHOHG message appears in th e
multifunction display and a wa rn ing to ne sounds.
q
WA RNING Risk of accident from ch ang‐
ing lane to an occupied adjacent lane
Lane Chan ge Assi st cannot al wa ys de te ct
clear ly if th e adjacent lane is free.
The lane ch ange might be initiated although
th e adjacent lane is not free.

Yo u are wa rn ed by vibration pulses in th e st eer‐
ing wheel in th e fo llowing circums ta nces:R
Ac tive Lane Ke eping Assist de te cts lane
markings. R
A front wheel passes ov er th e lane markings.
Whe th er a wa rn ing is issued and when th is
occurs also depends on th e selected sensitivity
setting (s ta nda rd or adaptive).
If yo u fa il to adapt yo ur drivin g st yl e, Ac tive Lane
Ke eping Assist can neither re duce th e ri sk of an
accident nor ove rr ide th e la ws of ph ys ics. It can‐
not ta ke into account ro ad, we ather or traf fi c
conditions. Ac tive Lane Ke eping Assist is only an
aid. Yo u are re sponsible fo r th e dis ta nce to th e
ve hicle in front, fo r ve hicle speed, fo r braking in
good time and fo r st ay ing in lane.
Ve hicles with Lane Tr acking pac ka ge : If th e
lane markings are solid lines and yo u do not
re act to th e wa rn ing, a lane-cor re cting brake
application can bring th e ve hicle back into th e
original lane.
Ve hicles with Driving Assistance pac ka ge or
Driving Assistance Plus pa ck age: If yo u do not re act to th e wa rn ing, a lane-cor re cting brake
application can bring th e ve hicle back into th e
original lane. In th e case of a broken lane mark‐
ing being de te cted, a brake application will only
be made if a ve hicle has been de te cte d in th e
adj
acent lane. Oncoming ve hicles, ove rt aking
ve hicles and ve hicles in adjacent lanes can be
de te cted.
The brake application is av ailable in th e speed
ra nge between 40 mp h (60 km/h) and 12 0 mp h
(200 km/h).
If a lane-cor re cting brake application occu rs , dis‐
play 1 appears in th e multifunction displa y. Sy st em limitations
No lane-cor re cting brake application occu rs in
th e fo llowing situations: R
Yo u clear ly and actively st eer, brake or accel‐
erate. R
Yo u ha ve switched on th e turn signal indica‐
to r. R
A driving sa fe ty sy st em inter ve nes, su ch as
ESP ®
, Ac tive Brake Assi st or Ac tive Blind
Spot Assi st . R
Yo u ha ve adop te d a sporty driving st yl e with
high cornering speeds or high ra te s of accel‐
eration. R
ESP ®
is deactivated. R
If a loss of tire pressure or a defective tire
has been de te cted and displ ay ed.
The sy st em may be impaired or may not function
in th e fo llowing situations: R
There is poor visibilit y, e.g. due to insuf fi cient
illumination of th e ro ad, high ly va ri able shade
conditions, or due to ra in, sno w, fo g or heavy
spr ay . Driving and pa rk ing 24 1