
#Remo veyour foot from thea ccelerator pedal.
#Tostor ec urrent speed 2.
Yo ur vehicle adapts its speed tothat of the
ve hicle in front, but onl yuptothestored
speed.
or
#Call up stored speed 2.
#Oron vehicles with DrivingA ssistance
Pa ckag ea nd Traf ficS ign Assis t:thed is‐
pla yeds peed limit is adop ted, if available 2.
#Deactivat eActiv eDista nce Assist DISTRONIC
1.
#Increase 3orreduce 4thes peed.
#Reduce 5or increase 6thes pecified dis‐
ta nce from thev ehicle in front.
Pulling away wit hA ctive Distance Assist
DI STRO NIC
Re quirement: aspeed mus thave been pr evi‐
ousl ystore d.
#Re mo veyour foot from theb rake pedal.
Driving and parking 17
1

#Brieflypull thec ruise control le vertow ards
yo u2.
or
#Ac celerat ebrief ly.
Yo ur vehicle pulls away and adapts its speed
to that of thev ehicle in front. If no vehicle is
de tected in front, your vehicle accelerates to
th es etspeed.
Ad opting thes peed limit as thes toreds peed
Re quirements:
RActiveS peed LimitA ssistis activated in the
multimedia sy stem (→pag e196).
RActiveD ista nce Assist DISTRONICi sactiva‐
te d.
RThe sy stem de tects atraffic sign indicating a
speed limit.
#Brief lypull thec ruise control le vertow ards
yo u2.
The displ ayed speed limit is adop tedast he
st ored speed. Your vehicle adapts its speed
to that of thev ehicle in front, but onl yupto
th es tore ds peed. If ActiveS peed LimitA ssist
is activated, an ydetected changes in the
speed limit ar eadop tedbyt he system.
Collision warning
If Ac tiveD ista nce Assist DISTRONICisu nableto
suf ficiently decele rate thev ehicle in order to
pr eve nt it from approach ingthev ehicle in front,
yo uw ill be warned visuall yand acousticall y.An
intermittent warning tone will then sound and
th ed ista nce warning lam pwill light up in the
instrumentc luster.
#Brak eimmediately in order toinc rease the
dis tance from thev ehicle in front.
or
#Ta ke evasiv eaction pr ovided it is saf etodo
so.
Ac tiv eS teering Assist
Fu nction of Activ eS teering Assist
Ac tiv eS teering Assis tisonlya vailable for
ve hicles with theD riving Assistance Pack‐
age.
RAc tiveS teering Assis tisoperational at
speeds up to130m ph (2 10km/h) and helps yo
utos tayint he center of thel ane by
means of moderat esteering inter ventions.
RIt uses thev ehicle in front and thel ane mark‐
ings as areferenc edepen ding on thed rive n
speed.
RAc tiveS teering Assis trequires youast he
driver ,tokeepyour hands on thes teering
wheel at all times so that youa reable to
inter vene at an ytime tocor rect thec ourse of
th ev ehicle and keep it in lane.
RAc tiveS teering Assis tcan be overridden at
an yt imebys teering thev ehicle yourself.
RWhen thes ystemisa ctively steering, the
è symbol is shown in green in them ulti‐
function displa y.
Sy stem limitations of Activ eS teering Assist
Ac tiveS teering Assis thas alimited steering tor‐
qu ef or lateral guidance. In some cases ,the
st eering inter ventio nisn otsuff icien ttok eepthe
ve hicle in thel ane.
If th ed etection of lane markings and vehicles
ahead is impaired, ActiveS teering Assist
switches topassiv emode. The sy stem pr ovides
no suppor tinthis case. During thet ransition
17 2
Driving and pa rking

fromthea ctiv etop assivestatus ,the è sym‐
bol is shown as enlar geda nd flashes yello w.
Once thes ystemisp assivethe è symbol is
shown as gr ayinthem ultifunction displa y.
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing ins tances:
RIfth er eisp oor visibility ,e.g. due toinsuf fi‐
cient illumination of ther oad, or due tosno w,
ra in, fogorh eavy spr ay.
RIfth er eisg lare, e.g. from oncoming traf fic,
dire ct sunlight or reflection from other vehi‐
cles (e.g. if thec arriag ew ay iswe t).
RIfth ew indshield is dirty ,miste du p, damaged
or co vered, fori ns tance byasticker,in the
vicinity of thec amera.
RIf no, or se veral, unclear lane markings are
presentf or one lane, e.g. in aconstruction
area.
RIf th el ane marking sarewo rnaw ay,d arko r
co veredu p, e.g. bydirtors now.
RThe dis tance tothev ehicle in front is too
small and thel ane marking sthus canno tbe
de tected.
RIfth el ane marking schang equickl y,e.g.
lanes branc hoff,c ross one ano ther or
mer ge.
RThe car riag ewa yisn arro wa nd winding.
RIfth er ea rehighly variable shade conditions
on thec arriag ewa y.
RIfth er ea reobs tacle ssuchaso bject mar kers
on thel ane or projecting out int othe lane.
The sy stem does no tprovide assi
s tance in the
fo llowing conditions:
ROn very shar pbends.
RWhen towing atrailer.
RIfyo ua ctivel ychang elane without switch ing
on thet urns ignal indicator.
RIfyo us witch onthet urns ignal indicator and
th ec onditions fora ctivating ActiveL ane
Chang eAssistaren otfulfilled.
Ac tivatin gActive Ste ering Assist
Requ irements:
RESP®mustbea ctivated, but no tinter vening.
RAc tiveD ista nce Assist DISTRONICisa ctiva‐
te d.
#If indicator lamp 1is off: press button 2.
Fu nction of Activ eL aneC hang eAssis t
Ac tiveS teering Assis tisonlyana id.Youa re
re sponsible fort he dis tance tothev ehicle in
front, forv ehicle speed, forb raking in good time
and fors tayi ng in your lane .Befor echanging
Driving and parking 17
3

lanes, makesuret hat then eighboring lane is
free (shoulder view).
% The availabilityoft hefollowing function is
countr y-dependent.
Ac tiveS teering Assis tremain sactiv eevenift he
tur ns igna lindica toriss witched on. ActiveS teer‐
ing Assis tthen assists thed rive rw hen changing
lane sbya pplying steering torques toinitiat ethe
lane change.
Assis tance when changing lane sisprovidedifa ll
th ef ollowing condition sareme t:
RYoua redrivin gonam otorway or high-speed
multi-lane major road wit hmultiple lane sin
th ed irection of tr avel.
RThe neighboring lane is free and separated
byab roke nl ane marking.
RThe driven speedisb etwe en 50 mph
(80 km/h) and 110m ph (180 km/h).
RThe tur nsignali ndicator is switched on for
longer than tw oseconds.
If th es ystemisi mpaired, ActiveL aneC hange
Assi stma ybec anceled.Ifani nterruption
occurs, display 1appear sinthe multifunction displa
yalong wit hawarning tone prom pting you
to take control of thev ehicle.
Ste ering and contact de tection
Ac tiveS teering Assis trequires youast he driver,
to keep your hands onthes teering wheel at all
times so that youa reable tointer vene at any
time tocor rect thec ourse of thev ehicle and
ke ep it in lane. The driver mus texpect achange
from activ etopassivemode or vice versaata ny
time.
If yo ua renots teering yourself or ifyo ut ake
yo ur hands offt he steering wheel forap ro‐
longed period of time, thes ystemw ill, depend‐
ing on thes ituation ,first aler tyou wit havisual wa
rning. 1appear sinthe multifunction displa y.
If yo ua restill no tsteering thev ehicle yourself or
if yo uh ave nottaken hold of thes teering wheel,
aw arning tone sounds in additio ntothewarning
messag etoremind youtot akec ontrol of the
ve hicle.
The warning messag edoes no tappear or disap‐
pear sifo ne of thef ollowing condition sareme t:
RThe driver steer sthe vehicle.
RThe driver presses asteering wheel button or
operates Touc hC ontrol.
Fu nction of Activ eE me rgency Stop Assist
If th ed rive rc ontinues toigno rethea coustic
wa rning of ActiveL aneC hangeA ssist,A ctive
Dis tance Assist DISTRONICr educesthes peed.
If th ed rive rs tilld oes no trespond, thev ehicle is
decelerated in stages toas tandstill.
The driv er c
an cancel
thed eceleration at any
time byper form ing one of thef ollowing actions:
RSteering
RBraking or accelerating
RPressing asteering wheel button or operat‐
ing Touc hC ontrol
174
Driving and pa rking

RActivating or deacti vating ActiveS teering
Assis torD ista nce Assist DISTRONIC
The driver must beready totake control of the
ve hicle at an ytime.
Information on Hill StartA ssist
Hill StartA ssisth olds thev ehicle foras hort
time when pulling away on ahill under thef ol‐
lowing conditions:
RThe transmission is in position hork.
RThe electric parking brak eisreleased.
This gives youe nough tim etomoveyour foot
from theb rake pedal tothea ccelerator pedal
and depress it befor ethe vehicle begins toroll.
&
WARNING Risk of accident and injury
caused bythev ehicle rolling away
Af teras horttime, Hill StartA ssistnol onger
holds thev ehicle and it can rollaw ay.
#Therefore, swiftl ymove your foot from
th eb rake pedal tothea ccelerator
pedal. Ne vera ttem pttolea vethev ehi‐
cle if it is being held byHillStart Assist.
HOLD function
HOLD function
The HOL Dfunction holds thev ehicle at astand‐
st ill without requ iring youtod epress theb rake
pedal, e.g. when pulling away on steep slopes.
Sy stem limitations
RThe incline mus tnotbe grea tert han 30%.
Ac tivating/deactivatin gthe HOLDf unction
&
WARNING Risk of an accident duetot he
HOLD function being acti vatedw heny ou
lea vethev ehicle
If yo ul eave thev ehicle while onl ythe HOLD
function is braking thev ehicle, thev ehicle
can rollaw ay inthef ollowing situations:
RIfth er eisam alfunction in thes ystemo r
in thep owe rsupply.
RIfth eH OLD function is deactivated by
depressing thea ccelera torp edalort he
brak epedal, e.g. byavehicle occupant.
RIfth ee lectrics in thee ngine compart‐
ment ,the batter yorthe fuses ar etam‐
pered wit horifthe batter yisdisconnec‐
te d.
#Alw aysd eactivat ethe HOLD function
and secur ethe vehicle agains trolling
aw ay befor eleaving thev ehicle.
* NO
TEDama gefrom au tomatic braking
When ActiveB rake Assi st,A ctiv eDista nce
Assist DISTRONICo rthe HOLD function are
activated, thev ehicle brakes autonomously
in cer tain situations.
To avo id damag etothevehicle, deactivate
th ese sy stems in thef ollowing or simila rsit‐
uations:
#During towing
#In ac arwa sh
Driving and parking 17
5

Requirements:RThe vehicle is stationar y.
RThe driver's door is closed or thes eat belt on
th ed rive r's side is fastened.
RThe engine is running or hasb eena utomati‐
cally switched of fbythe EC Ostart/s top
function.
RThe electric parking brak eisreleased.
RActiveD ista nce Assist DISTRONICi snotacti‐
va ted.
RVe hicles with automatic transmission:
The transmission is in position h,kori.
Ac tivatin gthe HOLDf unction
#Depress theb rake pedal and af teras hort
time depress fur ther until theë display
appear sinthe multifunction displa y.
#Release theb rake pedal.
Deactivating the HOLD function
#Depress thea ccelerator pedal topull away.
or
#Depress theb rake pedal until theë dis‐
pla yd isappear sfromt he multifunction dis‐
pla y.
The HOLD function is deactivated in thef ollow‐
ing situations:
RWhen ActiveD ista nce Assist DISTRONICi s
acti vated.
RVe hicles with automatic transmission:
when transmission position jis selected.
RWhen thev ehicle is secured wit hthe electric
parking brake.
In thef ollowing situations, thev ehicle is held by
th et ransmission position jorby thee lectric
parking brake:
RWhen thes eat belt is unfas tened and the
driver's door is opened.
RWhen thee ngine is switched off.
RWhen ther eisam alfunction in thes ystemo r
if th ep ower supply is insu fficient.
AIR BODY CONT ROL
AIR BODY CONT ROLfunction
AI RB ODYC ONTROL is an air suspension sy stem
wit hvariable dampingf or improveddriving com‐
fo rt.T he all-round le velc ontrol sy stem ensures
th eb estp ossible suspension and const ant
groundc learance, evenw ithal aden vehicle.
When driving at speed, thev ehicle is lo wered
automaticall ytoimprove driving saf etya nd to
re duce fuel consum ption. The option of manually
adjustin gthe vehicle le velisa lsoavailable.
AI RB ODYC ONTROL comprises:
RAir suspension wit hvariable spring rate
RAu tomatic le velc ontrol sy stem
RSpeed-dependent lo wering toreduce fuel
consum ption
RManuall yselecta ble high-le vels etting for
grea terg round cleara nce
RADS PLUS (Ada ptiveD amping Sy stem with
const ant dampingf orce adjustment)
RDYNA MIC SELECT switc hand le velb utton
17 6
Driving and pa rking

Thevehicle is lo wereda gain in thef ollowing sit‐
uations:
RWhen driving fasterthan 50 mph(80 km/h).
RWhen driving between 37mph(60 km/h)
and 50 mph(80 km/h) fora pproxima tely
th re em inutes.
RAfters electing adrive program using the
DY NA MIC SELECT switch.
The vehicle is adjus tedtot he height of thel ast
activ edrive program.
Lo weri ngthev ehicle
#Press but ton1.
Indicator lamp 2goes out. The vehicle is
adjus tedtot he height of thea ctiv edrive pro‐
gram.
Pa rking Assis tPARKTRONIC
Function of Parking Assis tPARKTRONIC
Parking Assis tPARKTRONIC is an electronic
pa rkinga ssistanc esystem wit hultrasound. It
monitor sthe area around your vehicle using six
sensors 1inthef ront bumper and six sensors
in ther ear bumper .Parking Assis tPARKTRONIC
indicates visually an daudibl ythe dis tance
betwee nyour vehicle and an object.
Pa rking Assis tPARKTRONIC is only an aid. It is
no tas ubstitut efor paying attentio ntoyour sur‐
ro undings. Youa realw aysr esponsibl efor safe
maneuvering, parking and exitin gap arking
space. Mak esuret hat ther ea reno persons, ani‐ mals or objects in
them aneuvering area while
maneuvering and parking in/exitin gparking
spaces.
In thes tandar dsetting ,ani ntermitte ntwa rning
to ne sounds from adista nc eofa pproximately
1. 0ft( 0.3 m) toan obs tacle .Ac ontinuoust one
sounds from adista nc eofa pproximatel y0.7ft
(0.2 m). Youc an se tthe warning tone in them ul‐
timedia sy stem so that it will sounde arlier at a
grea terd ista nce of appr oximatel y3.3ft(1.0 m)
(
→pag e182).
If Pa rking Assis tPARKTRONIC is deactivated,
Ac tiveP arking Assis tisunavailable.
Pa rking Assis tPARKTRONIC displayinthe
mu ltimedia sy stem
If Ac tiveP arking Assis tisnotactivated and an
obs tacle is de tected in thep
athoft hevehicle, a
pop-up windo wforParkin
g Assis tPARKTRONIC
1 appear sinthe multimedia sy stem at speeds
up toappr oximatel y6mph(10 km/h).
Driving and parking 17
9

Vehicles wit hActiv eParking Assis twithout a360°
Camera
Ve hicles wit hActiv eParking Assis tand a360°
Camera
Sy stem limitations
Pa rking Assis tPARKTRONIC does no tneces sa‐
ri ly tak eintoa ccount thef ollowing obs tacles:
RObs tacle sb elow thed etection range, e.g.
pe rsons, animals or objects.
RObs tacle sabove thed etection range, e.g.
ov erhanging loads, overhang sorl oading
ra mp soft ruck s.
The sensor smustbef reeofd irt, ice and slush.
Otherwise, they ma ynotfunction cor rectly.
Cleant he sensor sregularly ,tak ing car enotto
scratc hordamagethem.
Fu nction of thep assiv es ide impact pr otec‐
tion
Pa ssiv eside impact pr otection is an additional
Pa rking Assis tPARKTRONIC functio nwhich
wa rnst he driver about obs tacle satt he side of
th ev ehicle. Awarning is issued when obs tacles
ar ed etected between thef ront and rear de tec‐
tion range. In orde rfor an objec ttobedetected,
th es ensor sinthe front and rear bumper must
de tect theo bjec twhile youa redrivin gpastit. During
thep arking procedur eormaneuvering,
objects ar edetected as thev ehicle drives past.
If yo us teer in thed irection of adetected obs ta‐
cle and ther eisar isk ofalateral collision, a
wa rning is issued. The lateral segment slight up
orang eorred, depending on thed ista nce tothe
obs tacle.
Segment co lo
rd e
pendin gondistance
Colo rL ateral distance in
cm
Re dA pprox.<3 0
Orang eA pprox.30-6 0
In order forl ateral front or rear segment stobe
displa yed, thev ehicle mus tfirst trave lad ista nce
of at leas thalfoft hevehicle length. Once the
ve hicle has tr aveled thel engt hoft hevehicle, all
of thel ateral front and rear segment scan be dis‐
pla yed.
18 0
Driving and pa rking