
Fu
nction of STEER CONT ROL ST
EER CONTROL helps youby transmitting a
noticeable steering forc eto thesteering wheel in
th e direction requ ired forve hicle stabilisation.
This steering recommendation is given pa rticu‐
larly in thefo llowing situations:
R Both right wheels or bo thleft wheels are on
a we t or slippe ryroad sur face when you
brake.
R The vehicle starts toskid.
Sy stem limitations
ST EER CONTROL may be impaire d or may not
function in thefo llowing situations:
R ESP ®
is deactivated.
R ESP ®
is malfunctioning.
R The steering is malfunctioning.
If ESP ®
is malfunctioning, you will be assis ted
fur ther by the electric po werst eering. Fu
nction of Active Brake Assi st Ac
tive Brake Assi stconsi sts of:
R Distance warning function
R Autonomous braking function
R Situation-dependent braking assi stance
R Vehicles with Driving Assistance Pack‐
age: Evasi veSteering Assist
Ac tive Brake Assi stcan help youto minimise the
ri sk of a collision with vehicles or pedestrians or
to reduce the ef fects of su cha collision.
If Ac tive Brake Assi sthas de tected a risk of colli‐
sion, you will be warned visually and acousti‐
cally.
If yo u do not react tothe visual or acoustic warn‐
ing, autonomous braking can be initiated in criti‐
cal situations.
In especially critical situations, Active Brake
Assi stcan initia teautonomous braking direct ly.
In this case, the visual and acoustic warning
occurs simultaneously with the braking applica‐
tion. If
yo u apply the brake yourself in a critical situa‐
tion or apply the brake during autonomous brak‐
ing, situation-dependent braking assis tance
occu rs. The brake pressure increases up tomax‐
imum full-s top braking if necessar y.
If th e autonomous braking function or the situa‐
tion-dependent braking assis tance is trig gered,
additional pr eventive measures for occupant
pr otection (PRE-SAFE ®
) may also be initiated, if
th eve hicle is equipped with these. &
WARNING Risk of an accident caused by
limited de tection per form ance of Active
Brake Assi st
Ac tive Brake Assi stcannot al ways clearly
identify objects and compl extraf fic situa‐
tions.
In su chcases, Active Brake Assi stmight:
R Give a warning or brake without reason
R Not give a warning or not brake #
Alw ays pay careful attention tothe traf‐
fi c situation; do not rely on Active Brake
Assi stalone. Active Brake Assi stis only 17 2
Driving and pa rking

Collision
warning
If Dis tance Pilot DISTRONIC is unable tosuf fi‐
ciently decele rate theve hicle in order topreve nt
it from approa ching theve hicle in front, you will
be warned visually and acousticall y.An intermit‐
te nt wa rning tone will then sound and the dis‐
ta nce warning lamp will light up in the instru‐
ment clus ter. #
Brake immediately in order toinc rease the
dis tance from theve hicle in front.
or #
Take evasive action pr ovided it is safe todo
so. Ste
ering Pilot Fu
nction of Steering Pilot
Ste ering Pilot is only available forve hicles
with the Driving Assistance Package.
R Steering Pilot is operational at speeds up to
21 0 km/h and helps youto stay inthe cent re
of the lane bymeans of moderate steering
inter ventions. R
It uses theve hicle in front and the lane mark‐
ings as a refere nce depending on the driven
speed.
R Steering Pilot requ ires you as the driver, to
ke ep your hands on thesteering wheel at all
times so that you are able tointer vene at any
time tocor rect the course of theve hicle and
ke ep it in lane.
R Steering Pilot can be overridden at any time
by steering theve hicle yourself.
R When the sy stem is actively steering, the
è symbol is shown in green in the multi‐
function displa y.
Sy stem limitations of Steering Pilot
St eering Pilot has a limited steering torque for
lateral guidance. In some cases, thesteering
inter vention is not su fficient tokeep theve hicle
in the lane.
If de tection of lane markings and vehicles ahead
is impaired, Steering Pilot switches topassive
mode. The sy stem pr ovides no support in this
case. During the transition from the active to
passive status, theè symbol is shown as
enlar ged and flashes yello w. Once the sy stem is passive
theè symbol is shown as gr eyinthe
multifunction displa y.
The sy stem may be impaired or may not function
in thefo llowing ins tances:
R Ifth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, or due tosno w,
ra in, fog or spr ay.
R Ifth ere is glare, e.g. from oncoming traf fic,
di re ct sunlight or reflection from other vehi‐
cles (e.g. if the car riag ewa y is wet).
R Ifth e windscreen is dirty, mis ted up, dam‐
aged or co vered, for ins tance byast icke r,in
th e vicinity of the camera.
R If no, or se veral, unclear lane markings are
present for one lane, e.g. in a construction
area.
R Ifth e lane markings are wornaw ay, dark or
co vered up, e.g. bydirt or sno w.
R The dis tance totheve hicle in front is too
small and the lane markings thus cannot be
de tected. Driving and pa
rking 187

display along with a
warning tone prom pting you
to take control of theve hicle. Ste
ering and contact de tection
St eering Pilot requ ires you as the driver, tokeep
yo ur hands on thesteering wheel at all times so
th at you are able tointer vene at any time tocor‐
re ct the course of theve hicle and keep it in lane.
The driver must expect a change from active to
passive mode or vice versa at any time.
If yo u are not steering yourself or if you take
yo ur hands off thesteering wheel for a pro‐
longed period of time, the sy stem will, depend‐
ing on the situation, firs t alert you with a visual
wa rning. 1appears in the multifunction displa y.If
yo u are still not steering theve hicle yourself or
if yo u ha venot take n hold of thesteering wheel,
a wa rning tone sounds in addition tothewa rning
message toremind youto take control of the
ve hicle.
The warning message does not appear or disap‐
pears if one of thefo llowing conditions are me t:
R The driver steers theve hicle.
R The driver presses a steering wheel button or
operates Touch Control.
Fu nction of Active Eme rgency Stop Assist
If th e driver continues toigno rethe acoustic
wa rning of theAc tive Lane Change Assi st, Dis‐
ta nce Pilot DISTRONIC reduces the speed. If the
driver still does not respond, theve hicle is decel‐
erated in stages toast andstill.
The driver can cancel the deceleration at any
time byper form ing one of thefo llowing actions:
R Steering
R Braking or accelerating
R Pressing a steering wheel button or operat‐
ing Touch Control R
Activating or deacti vating Steering Pilot or
Dis tance Pilot DISTRONIC
The driver mu stbe ready totake control of the
ve hicle at any time. Information on Hill
Start Assist Hill
Start Assist holds theve hicle for a short
time when pulling away on a hill under thefo l‐
lowing conditions:
R The transmission is in position hork.
R The elect ric pa rking brake is released.
This gives you enough time tomo veyour foot
from the brake pedal tothe accelerator pedal
and depress it before theve hicle begins toroll. &
WARNING Risk of accident and inju ry
caused bytheve hicle rolling away
Af ter a short time, Hill Start Assist no lon ger
holds theve hicle and it can rollaw ay. #
Therefore, swiftly mo veyour foot from
th e brake pedal tothe accelerator Driving and parking
18 9

Normal view
1 Yellow guide line at a dis tance of appr ox‐
imately 4.0 m from there ar area
2 White guide line without turning thesteering
wheel, vehicle width including the outside
mir rors (sta tic)
3 Yellow guide line, vehicle width (driven sur‐
fa ce) depending on the cur rent steering
wheel angle (dynamic)
4 Yellow lane marking the course the tyres will
ta ke atthe cur rent steering wheel angle
(dynamic) 5
Yellow guide line at a dis tance of appr ox‐
imately 1.0 m from there ar area
6 Vehicle centre axis (locating aid)
7 bumper
8 Red guide line at a dis tance of appr oximately
0.3 m from there ar area Wi
de-angle view Tr
ailer view (if trailer hit chisfitted)
1 Yellow guide line, locating aid Driving and parking
19 9

2
Red guide line at a dis tance of appr oximately
0.3 m tothe ball head of the trailer hitch
3 Ball head of the trailer hitch
Ve hicles with Parking Pilot
The following camera vie wsare available in the
multimedia sy stem: Normal view
1 Yellow lane marking the course the tyres will
ta ke atthe cur rent steering wheel angle
(dynamic)
2 Yellow guide line, vehicle width (driven sur‐
fa ce) depending on the cur rent steering
wheel angle (dynamic) 3
Red guide line at a dis tance of appr oximately
0.3 m from there ar area
4 Yellow warning display of Parking Assist
PA RKTRONIC: obstacles are at a dis tance of
between appr oximately 0.6 m and 1.0 m
5 Redwa rning display of Parking Assist
PA RKTRONIC: obstacles are very close
(appr oximately 0.3 m or less)
6 Orange warning display of Parking Assist
PA RKTRONIC: obstacles are a medium dis‐
ta nce away (between appr oximately 0.3 m
and 0.6 m)
% Ifth e entire sy stem fails, the inner segments
of thewa rning display are shown in red. The
indicator lamp on thePA RKTRONIC but ton
lights up and theé symbol appears in
th e multifunction displa y.
If th e sy stem fails at there ar:
R The rear segments are shown in red
when reve rsing.
R The rear segments are hidden when driv‐
ing forw ards. When
Parking Pilot is active, the lanes are
displa yed in green.
If Pa rking Assist PARKTRONIC is deacti vated,
th ewa rning display fades out. Wi
de-angle view 200
Driving and parking

To
p view 1
Lane indicating thero ute theve hicle will
ta ke with thesteering wheel in its cur rent
position
2 Yellow warning display of Parking Assist
PA RKTRONIC: obstacles at a dis tance of
appr oximately 1.0 m or less
3 Your vehicle from abo ve
If th e dis tance tothe object lessens, the colour
of thewa rning display changes 2.From a dis‐
ta nce of appr oximately 0.6 m thewa rning dis‐
play is shown in orange. From a dis tance of
appr oximately 0.3 m thewa rning display is
shown in red. When
Parking Assist PARKTRONIC is operational
and no object is de tected, the segments of the
wa rning display are shown in grey.
% Ifth e entire sy stem fails, the segments of
th ewa rning display are shown in red. The
indicator lamp on thePA RKTRONIC but ton
lights up and theé symbol appears in
th e multifunction displa y.
If th e sy stem fails at there ar:
R The rear segments are shown in red
when reve rsing.
R The rear segments are hidden when driv‐
ing forw ards.
If Pa rking Assist PARKTRONIC is deacti vated,
th ewa rning display fades out. Guide lines 1
Yellow lane marking the course the tyres will
ta ke atthe cur rent steering wheel angle
(dynamic)
2 Yellow guide line, vehicle width (driven sur‐
fa ce) depending on the cur rent steering
wheel angle (dynamic)
3 Red guide line at a dis tance of appr oximately
0.3 m from there ar area
4 Mark at a distance of appr ox.1. 0 m
% When Parking Pilot is active, the lanes are
displa yed in green. 202
Driving and parking

Ac
tivating/deactivating Blind Spot Assi stor
Ac tive Blind Spot Assi st
Multimedia sy stem:
, Vehicle .
k Assistance .
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 multifunction
camera 1. It ser vesto protect you against unin‐
te ntional lyleaving your lane. You will be warned
by means of a vibration in thesteering wheel and a course-cor
recting brake application guides
yo u back into your lane.
Yo u are warned byvibration pulses in thesteer‐
ing wheel in thefo llowing circums tances:
R Active Lane Keeping Assist de tects lane
markings.
R A front wheel passes over the lane markings.
Yo u will also be guided back into your lane by
means of a course-cor recting brake application
if th efo llowing conditions are me t:
R Active Lane Keeping Assist de tects lane
markings on bo thsides.
R A front wheel drives over a solid lane mark‐
ing.
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 driving style, 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 Driving and pa
rking 215

ó
LINGU ATRO NIC or Voice Cont rol Sys‐
tem
6 Makes/accepts a call
~ Rejects/ends a call Ope
rating the on-board co mputer &
WARNING Risk of di stra ction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tions equipment integ rated in theve hicle
when driving, you will be distracted from the
traf fic situation. This could also cause youto
lose control of theve hicle. #
Only operate this equipment when the
traf fic situation permits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and traf fic conditions and ope rate the
equipment with theve hicle stationar y. Yo
u must obse rveth e legal requirements forthe
country in whi chyou are cur rently driving when
operating the on-board computer.
% The on-board computer displa ysappear in
th e multifunction display (→ page 228). The on-board computer is operated using
Touch
Control 2and back but ton1 onthe left-hand
side of thesteering wheel.
The following menus are available:
R Service
R Assistance
R Trip
R Navigation R
Radio
R Media
R Telephone
R Vehicles with an instrument display in
th e widescreen cockpit: Content
R HUD
R Vehicles with an instrument display in
th e widescreen cockpit: Design
The menus can be called up from the menu bar
in the multifunction displa y. #
Tocall up the menu bar: pressthe back
button on the left. Instrument Display and on-board computer
227