#
Toopen or close: turnthe adjustment
wheels 1ontheh igh-po werairve nts tothe
lef torr ight as farast heyw ill go.
% Cooled air will
flow out of theh igh-po werair
ve nts. Heating will no tbep ossible .Opent he
high-po werairve nts only in summer du ring
cooling mod eand keep them closed in win‐
te r. Ad
justin gairve nts in ther oof air duct In
vehicles wit hrear-compartment air condition‐
ing, adjus table air vents ha vebeen integrated in
th er oof air duct. #
Adjustin gthe air flow: if necessar y,open or
close thea irflaps in air vents 1. #
Adjustin gthe air distribution: turna irve nts
1 tother equired position. Ve
ntilation nozzles in ther ear &
WARNING ‑Danger of bu rnsorf rostbite
due tobeing tooc lose tothea irve nts
Ve ry hotorv eryc old ai rcan flow from thea ir
ve nts.
Thi scould result in burns or frostbit einthe
immediat evicinity of thea irve nts. #
Makesur ethat all vehicle occupants
alw aysm aintain asufficient dis tance to
th ea irve nts. #
If necessa ry,d irect thea irflow to
ano ther area of thev ehicle interior. Depending on
thev ehicle equipment, ther ew ill
be an air duct or aheater wit hadditional air noz‐
zles in ther ear foot we ll on thel eft-hand side 1.
No object smaybe placed there. Passengers
mus tmaintain asufficient dis tance du etothe
wa rm airflow and air intake. Au
xiliar yheating Fu
nction of thea uxiliar yheating &
DANG ER Risk of fata linjur ydue topoi‐
sonous exhaus tgases
If th et ailpipe is bloc kedors ufficient ventila‐
tion is no tpossible ,poisonous exhaus tgases
suc hasc arbon monoxide ma yenter thev ehi‐
cle. This is thec ase in enclosed spaces or if
th ev ehicle getsstuc kins now, fore xamp le. #
Alwayss witc hthe stationar yheater off
in enclosed spaces without an air
ex traction sy stems, e.g. in garage s. Climate
control 99
&
WARNING Risk of accident whe nswitch‐
ing of fthe ignition when driving
If yo us wit ch offt he ignition while driving,
saf etyf unction sare re stricted or no longer
av ailable. This ma yaffect thep owersteering
sy stem and theb rake forc eb oosting, for
ex ample.
Yo uw illthen need touse considerabl ymore
fo rc etos teer and brake. #
Do no tswitc hoffthei gnition while driv‐
ing. &
DANG ER Risk of fata linjuries due to
ex haus tgases
Combustio nengines emit poisonous exhaust
ga ses suc hascarbon monoxide. Inhaling
th ese exhaus tgases is hazardou stohealth
and can lead topoisoning. #
Neverlea ve thee ngine running in an
enclose dspace wi thout suf ficient venti‐
lation. &
DANG ER Risk of fata linjur ydue topoi‐
sonous exhaus tgases
If th et ailpipe is bloc kedors ufficient ventila‐
tion is no tpossible ,poisonous exhaus tgases
suc hasc arbon monoxide ma yenter thev ehi‐
cle. This is thec ase if thev ehicle getsstuck
in sno w,fore xamp le. #
Keep thet ailpipe and thea reaa round
th ev ehicle free from sno wwhen the
engine or thes tationar yheater ar erun‐
ning. #
Open awindo wont he windwar dside of
th ev ehicle toensur eana dequat esup‐
ply of fresh air. &
WARNING Risk of accident and inju ry
due tobeing under thei nfluence of alco‐
hol and drugs while driving
Driving when under thei nfluence of alcohol
and/or drugs is an extreme lydangerous com‐
bination .Evens mall quantitie sofalcohol or
drugs ma yaffect your reflexe s, perception
and judgment.
The probability of aserious or evenfatal acci‐
dent greatl yinc reases if youd rive when
unde rthe influence of alcohol or drugs. #
Do no tdrink alcohol or take drugs while
driving, and do no tallowa nyone todrive who has been drinkin
galcohol or taking
drugs. &
WARNING Risk of accident and injury
from ope rating mobil ecommunications
equipment
If yo uo perat emobile communication equip‐
men twhen driving, youw ill be distracted
from thet raffic situation .Thisc ould also
cause youtol ose control of thev ehicle.
The probability of aserious or evenfatal acci‐
dent inc reases greatl yifyou operat emobile
communication equipment when driving. #
Only operat emobile communication
equipment when thev ehicle is station‐
ar y. Fo
ry our owns afet y, alwa ys obser vethef ollowing
points when operating mobile communications
equipment:
R Obser vethel egal requ irements fort he coun‐
tr yinw hichyou ar edriving.
R While driving, on lyoperat emobile communi‐
cations equipment when thet raffic conditions
permit it. Youm ayotherwise be distracted
from thet raffic condition sand cause an acci‐
dent, inju ring yourself and others. &
WARNING Risk of accident du etoover‐
heated brak esystem
If yo ur esty our foot on theb rake pedal during
while driving, theb rake system ma yoverheat.
This increases theb raking dis tance and the
brak esystemm ayeve nfail. #
Neveru se theb rake pedal as afootrest. #
Do no tpress theb rake pedal and accel‐
erator pedal simultaneously while driv‐
ing. On long and
steep downhill gradients, yous hould
ch ang edowntoa lowe rgear in good time. Take
particular no teofthis when driving aladen vehi‐
cle. By doing so, youw ill mak euse of the
engine' sbraking ef fect. Thi srelie vest he load on
th eb rake system and pr events theb rake sf rom
ove rheating and wearing tooq uickl y. 106
Driving and pa rking
Information abou
ttranspor tbyrail
Tr ansportin gyour vehicle byrail ma ybes ubject
to cer tain restrictions or requ ires pecial meas‐
ures tobe take nins omecountrie sdue tovarying
tunnel height sand loading standards.
Yo uc an obtain information about this from any
authorized Mercedes-Benz Center.
Note sonb rakes &
WARNING Risk of skidding and of an
accident du etoshifting down on slippery
ro ad sur faces
If yo us hiftd ow nons lipperyroad sur faces to
inc rease thee ngine braking ef fect, thed rive
wheels ma ylose traction. #
Do no tshif td ow nons lipperyroad sur‐
fa ces toinc rease thee ngine braking
ef fect. &
WARNING Risk of accident du etothe
brak esystem overheating
If yo ul eave your foot on theb rake pedal
when driving, theb rake system ma yoverheat.
This increases theb raking dis tance and the
brak esystemm ayeve nfail. #
Neveru se theb rake pedal as afootrest. #
Do no tdepress theb rake pedal and the
accelerator pedal at thes ame time
while driving. Downhill
gradients
On long and steep downhill gradients yous hould
obse rvet he following instructions:
R invehicles wit hanautomatic transmission,
shif tdow ntos hiftranges 2or 1in good time
so that thee ngine is running at amediu mto
high engine speed (/ page117).
% Cha
nget he shif trang eing oodt ime when
cruise control is acti vated. Obser vethed riv‐
ing tips (/ page105).
Yo ut hereb ymakeu se of theb raking ef fect of the
engine and do no thave tobrak easo ften tomain‐
tai nt he speed. This relie vest he load on the
service brak eand pr events theb rake sf romo ver‐
heating and wearing tooq uickl y. Heavy and light loads &
WARNING Risk of accident du etothe
brak esystemo verheating
If yo ul eave your foot on theb rake pedal
when driving, theb rake system ma yoverheat.
This increases theb raking dis tance and the
brak esystemm ayeve nfail. #
Neveru se theb rake pedal as afootrest. #
Do no tdepress theb rake pedal and the
accelerator pedal at thes ame time
while driving. If
th eb rake sh aveb een subjected toah eavy
load, do no tstopt he vehicle immediately .Drive
on foras hortwhile. The brakes cool down more
qu ickl yint he air flow.
If th eb rake sh aveb een used onl ymoderatel y,
yo us houl doccasionall ytesttheir ef fectiveness.
To do this, brak emoref irml yfromah igher speed
while paying attention tothet raffic conditions.
The brakes will grip better as aresult.
We troad sur faces
If yo uh ave been driving foral ong time in heavy
ra in without braking, ther em aybe adelayed
re sponse when youf irst apply theb rake s. This
ma yalso occur af terd riving thro ugh acarwa sh
or deep water.Yo um ustd epress theb rake pedal
mor efirml y.Main tainal ongerd ista nc etot he
ve hicle in front.
While paying attention tothet raffic conditions,
yo us houl dbrakethe vehicle firm ly af terd riving
on aw etroad sur face or thro ugh acarwa sh. This
heats theb rake discs so that they drym ore
qu ickl y,whic hprotects them agains tcorrosion.
Limited braking ef fect on salt-trea tedr oads:
R alayer of salt on theb rake discs or brakepads
can increase braking dis tances conside rably,
or braking ma yhappen on onl yone side
R maintain an especiall ylarge safed ista nce to
th ev ehicle in front
To remo vethel aye rofs alt:
R apply theb rake sf romt ime totime ,paying
attention totraf ficc onditions
R carefully dep ress theb rake pedal at thee nd
of ajourne yand af tert he star tofan ewjour‐
ney
Checking theb rake pa dt hickness
In addition tomonitoring using theb rake pad wear
sensor ,regular lymonitor and checka ll of the 108
Driving and pa rking
Information abou
tdriving in winter &
DANG ER Risk of fata linjur ydue topoi‐
sonous exhaus tgases
If th et ailpipe is bloc kedors ufficient ventila‐
tion is no tpossible ,poisonous exhaus tgases
suc hasc arbon monoxide ma yenter thev ehi‐
cle. This is thec ase if thev ehicle getsstuck
in sno w,fore xamp le. #
Keep thet ailpipe and thea reaa round
th ev ehicle free from sno wwhen the
engine or thes tationar yheater ar erun‐
ning. #
Open awindo wont he windwar dside of
th ev ehicle toensur eana dequat esup‐
ply of fresh air. &
WARNING Risk of skidding and of an
accident du etoshifting down on slippery
ro ad sur faces
If yo us hiftd ow nons lipperyroad sur faces to
inc rease thee ngine braking ef fect, thed rive
wheels ma ylose traction. #
Do no tshif td ow nons lipperyroad sur‐
fa ces toinc rease thee ngine braking
ef fect. Ve
hicles wit hautomatic transmissions ma yroll in
neutra lposition 005Cforo nly ashor ttime. Allowing
th ew heels torollfo rl onger ,e.g. when towing,
causes transmission damage.
If th ev ehicle thre atens toskid, or canno tbestop‐
ped when tr aveling at alow speed, youc an stabi‐
lize thev ehicle using thef ollowing measures:
R Shif tthe automatic transmission toneutral
position 005C.
R Trytom aintain control of thev ehicle using
cor rectiv esteering.
Driv eparticularly carefull yonslipperyroads.
Av oid sudden acceleration, steering and braking
maneuver.
Ha ve your vehicle winterized at aqualified spe‐
cialis tworks hop in good time at theo nse tofw in‐
te r.
Obser vethei nstruction sinthe section "No teson
sno wchains" (/ page203).
Re gular lych eckt he vehicle and remo vesno wor
ice when tr aveling in wintr yconditions. An accumulation of sno
wand ice, particular ly
when frozen, in thea reaa round thea ir intake,
moving parts, thea xles and thew heel housing,
ma ycause thef ollowing problems:
R Obstruction of thea ir intake
R Damag etovehicle parts
R Malfunction sdue torestriction of mobility
intende dbythe design (e.g. reduced steering
mo vement)
If th er eisa nydamage, infor maqualified special‐
is tw orks hop.
Information about driving off-road &
WARNING Risk of accident if youdon ot
ke ep toline of fall on inclines
If yo ud rive at an angle or tur nonanincline,
th ev ehicle could slip side ways,tip and roll‐
ove r. #
Alwaysd rive on inclines in thel ine of fall
(straight up or down) and do no tturn. &
WARNING Risk of inju rydue toacceler‐
atin gforce during off-road driving
When driving off-road on une vens urfaces,
th ef orce of thev ehicle's acceleration af fects
yo ur body from all directions.
Yo uc ould, fore xamp le, be thro wn from your
seat. #
Alwaysw ear aseat belt when driving
off- road. &
WARNING Risk of inju ryto theh ands
when driving overobstac les
If yo ud rive over obs tacles or in tir eruts ,the
st eering wheel ma yfold bac kand cause inju‐
ri es totheh ands. #
Steering wheel mus talway sbeh eld
securely wit hbothh ands. #
When driving overobstac les, expect
increased steering forc es at short
notice. &
WARNING Risk offire due toflammable
materials on ho tparts of thee xhau stsys‐
tem
Flammable materia lsuc hasl eaves, grass or
twigs ma yignit eift heyc ome int ocontact
wi th hotp arts of thee xhau stsystem. 11 0
Driving and pa rking
The jac
kmaytip. #
Press theS ervice button on thea ir sus‐
pension remo tecontrol befor eraising
th ev ehicle.
This pr events au tomatic readjustment
of thev ehicle le vela nd pr events it from
being raised or lo weredm anually. &
WARNING Risk of accident du etolow‐
ered or raised chassis
Drivin gwithal oweredorr aised chassis may
greatl yimp air brakin gand handlin gcharac‐
te rist ics. Youm ayalso exceed thep ermissible
ve hicle height when thec hassi sisraised. #
Setthe driving le velb efor epulling away. &
WARNING Risk of accident from mal‐
function of electronic le velc ontrol
If elect ronic le velc ontrol is malfunctioning,
th ev ehicle le velm aybe asymmetrical, too
high or tool ow.
The driving and steering characteristic softhe
ve hicle ma ybenoticeabl ydiffe re nt. #
Adapty our driving stylea ccording lyand
driv ecarefull y. #
Stop, paying attention toroad and traf‐
fi cc onditions. #
Consul taqualified specialis tworks hop. *
NO
TERisk of damag etothechassis from
lo we redv ehicle le vel If electronic le
velc ontrol is malfunctionin gor
re adjusts while youa redriving, thev ehicle
le ve lm aybe lo wered. #
Paya ttention tother oad conditions and
ensur ether eiss ufficient ground clear‐
ance. #
Driv ecarefully. The le
veloft hevehicle depends on vehicle load
and thel oad distribution. Elect ronic le velc ontrol
adjusts thel evel of ther ear axle automaticall yon
ve hicles wit hanair-sprung rear axle .The vehicle
le ve list hereb yalway sm aintained at thed riving
le ve l,re ga rdless of vehicle load. Driving dynamics
re main unaf fected. The height dif fere nce
between thes ides of thev ehicle ma ybeupto
0.4 in (1 cm). Electronic le
velc ontrol is no tengine-dependent
and is onl yoperational when thei gnition is
switched on. The electronic le velc ontrol com‐
pressor worksa udibl y.
% If
th ec ompressor worksc ons tantly or starts
up se veraltimes per minute, elect ronic le vel
control is malfunctioning.
Depending on thev ehicle equipment, electronic
le ve lc ontrol switches between manual and auto‐
matic mode depending on either thev ehicle
speed or thep osition of thep arking brake.
If electronic le velc ontrol switches depending on
ve hicle speed, manual operation is automatically
activated when thev ehicle is stationar y.Yo um ay
ra ise or lo werthe vehicle le vel. If yous ubse‐
qu ently drivefastert han 6mph (1 0km/h), man‐
ual mode is automaticall ydeactivated and auto‐
matic mode sets thev ehicle le vel.
If elect ronic le velc ontrol switches depending on
th ep arking brak eposition ,manual mode is auto‐
maticall yactivated when thep arking brak eis
applied. Youm ayraise or lo werthe vehicle le vel
to load and unload. If your elease thep arking
brake, manual mode is automaticall ydeactivated
and automatic mode sets thed riving le vel.
When working on thev ehicle or changing a
wheel, youc an deactivat eelectronic le velc ontrol
(/ page123).
If electronic le velc ontrol is malfunctionin gorthe
ve hicle le velist oo high or tool ow ,ana udible sig‐
nal sounds.
The drivin gand steering characteristic softhe
ve hicle will be noticeably dif fere nt. Electronic
le ve lc ontrol adjusts thev ehicle le veltot he nor‐
mal le velass oon as possible. Continue driving
carefull yuntil thea udible signal stops. Onl ythen
is thev ehicle at normal le vel.
Au tomatic mode and electronic le velc ontrol
automaticall yswitc hona gain to restor et he vehi‐
cle le vel, depending on theo ption selected:
R when thep arking brak eisreleased
R from speeds of appr oximatel y6mph
(1 0k m/h)
If th ee lectronic le velc ontrol compressor thre at‐
ens to ov erheat, e.g. due torepeated raising or
lo we ring wi thin as hor tperiod, elect ronic le vel
control is deactivated. Youc an raise or lo werthe
ve hicle le vela ga in af tera pproxima tely
one minu te. 12 2
Driving and pa rking
Depending on
thev ehicle's equipment, ther adar
sensor sareintegrated behind theb umpers
and/or behind ther adiator grill. Keep these parts
free of dirt, ice and slush (/ page183). The sen‐
sor sm ustn otbe co vered, fore xamp leby bicycle
ra ck s, overhanging loads or sticke rs.A fter ac olli‐
sion, ha vethef unction of ther adar sensors
ch eckedataq ualified specialis tworks hop as
damag e(both visible or non-visible) ma yhave
occur redtot he bumper or radiator trim. Fu
nction of driving sy stems and driving
saf etys ystems In
this section, youw illfind information abou tthe
fo llowing driving sy stems and driving saf etys ys‐
te ms:
R ABS ( Anti-lock braking system)
(/ page137)
R ASC (Acceleration SkidControl)
(/ page137)
R BAS(Bra ke Assist System) (/ page137)
R ESP ®
(Electronic Stability Program)
(/ page138)
R EBD ( Electronic Brakeforce Distribution)
(/ page139)
R ActiveB rake Assi st (/ pag e139)
R Cruise control (/ page141 )
R ActiveD ista nce Assi stDISTRONIC
(/ page 142)
R Hill star ta ssist
R HOL Dfunction (/ page145)
R Parking Assis tPARKTRONIC
R Rear vie wcamera
R 360° Camera
R ATTENTION ASSIS T(/ pag e146)
R Blind Spo tAssist ( / pag e147)
R ActiveL aneK eeping Assis t(/pag e150) Fu
nctions of ABS (Anti-loc kBraking Sy stem) Obser
vethei mp ortant sa fety guideline sfor the
driving saf etys ystem.
ABS cont rols theb rake pressur eincritical situa‐
tions:
R thew heels ar epreve nted from lo cking when
braking, e.g. during maximum full-s topb rak‐
ing or when ther eisi nsufficient tir etraction. R
thes teerability of thev ehicle in term sof
ph ysical possibilities is ensured when brak‐
ing.
R ABSisa ctivefroms peeds of appr ox.3m ph
(5 km/h). On aslipper yroad sur face, ABS
inter venes evenify ou onl ybrake gently.
Sy stem limitations
If th er eisam alfunction and they ellow 0025 ABS
wa rning lam plight supc ontinuousl yinthe instru‐
ment displa yafter startin gthe engine, ABS may
be impaired or inoperative.
If ABS inter venes, youw illfeel ap ulsing in the
brak epedal. The pulsating brak epedal ma ybean
indication of hazardous road condition sand func‐
tions as areminder totake extrac arew hile driv‐
ing.
If ABS in terv enes: keep theb rake pedal firm ly
depressed until theb raking situation has passed.
To car ryout maximum full-s topb raking:
dep ress theb rake pedal wit hfull forc e. Fu
nction of BAS(Brak eAssis tSystem) &
WARNING Risk of an accident caused by
am alfunctio ninBAS (Brak eAssistSys‐
te m)
If BA Sism alfunctioning ,the braking dis tance
in an emergency braking situation is
increased. #
Depress theb rake pedal wit hfull force
in emer gency braking situations. ABS
pr eve nts thew heels from locking. BA
Ss uppo rtsy ou wit hadditional braking forc ein
an emer gency braking situation.
If yo ud epress theb rake pedal quickl y,BA Sis
acti vated:
R BASa utom atically boosts theb raking forc eof
th eb rakes
R BASc an sho rten theb raking dis tance
R ABS pr eventst he wheels from locking
When your elease theb rake pedal, theb rakes
function as usual again. BASisd eactivated. Fu
nctions of ASR (Acceleration Skid Control) ASR can neither
reduce ther isk of an accident
nor override thel aw sofp hysics if thed rive rd oes
no tp ay attention when pulling away or accelerat‐
ing. ASR is onl yanaid. Alw aysa dap tyour driving Driving and parking
137
st
yletos uitthep reva iling road and weather con‐
ditions.
If yo ua ctivat eord eactivat ethe all-wheel driv ein
av ehicle wit hthis option, ASR will be deactivated
fo rt he duration of thea ctivation/deactivation
process.
Ve hicles without steering wheel but tons: if
ASR is malfunctioning, the00E5 indicator lamp
lights up while thee ngine is running and the
engine output ma ybereduced (/ page23).
ASR impr ovestraction, i.e. thet ransfer of po wer
from thet ires tother oad sur face, foras ustained
period and, thereb y,also impr ovesthe driving
st abilit yoft hevehicle. If thed riving wheels start
to spin, ASR brakes individuald rive wheels and
limits thee ngine torque. ASRthus significantly
assists youw hen pullin gawaya nd accelerating,
especiall yonw etor slippe ryroads.
If traction on ther oad sur face is no tsufficient,
eve nASR will no tallow youtop ullaway without
dif ficulty .The typ eoftires and totalwe ight of the
ve hicle as well as theg radient of ther oad also
pla yac rucial role.
If AS Rinter venes, the00E5 warning lam pinthe
instrument display flashes. Fu
nctions of ESP ®
(Electronic Stability Pro‐
gr am) &
WARNING Risk of skidding if ESP ®
is
malfunctioning
If ESP ®
is malfunctioning ,ESP ®
canno tcarry
out vehicle stabilization. In addition ,other
driving saf etys ystems ar eswitched off. #
Driv eonc arefull y. #
Have ESP ®
ch eckedataq ualified spe‐
cialis tworks hop. &
WARNING Risk of skidding if ESP ®
is
deactivated
If yo ud eactivat eESP®
,E SP ®
canno tcarry out
ve hicle stabilization. #
ESP ®
shoul donlybed eactivated in the
fo llowing situations. Do no
topera tethev ehicle on aroller dynamo me‐
te r( e.g. forap erform anc etest). If youh ave to
operat ethe vehicle on aroller dynamo meter,con‐
sult aqualified specialis tworks hop beforehand. If
yo ua ctivat eord eactivat ethe all-wheel driv ein
av ehicle wit hthis option, ESP ®
will be deactiva‐
te df or thed uration of thea ctivation/deactiva‐
tion process.
If ESP ®
is malfunctioning or deactivated, the
00E5 warning lam plight supw hilethee ngine is
ru nning and thee ngine output ma ybereduced
(/ page23).
% Onl
yuse wheels wit hthe recommended tire
sizes. Only then will ESP ®
function properly. Ac
tivating/deactivatin gESP®
(Electronic Sta‐
bility Prog ram) On-boa
rdcompu ter:
4 Settings 5
DriveAssist 5
ESP (ESP) #
Select Ein(On) or Aus00BB (Off). Fu
nctions of ESP ®
Crosswind Assist Crosswind Assis
tdoes no tworkifE SP®
is deacti‐
va tedord isabled due toam alfunction.
Crosswind Assis tdoes no treact under thef ollow‐
ing conditions:
R The vehicle is subjected tosevere jolts and
vib rations, e.g .asar esult of une vens urfaces
or po tholes.
R The vehicle loses traction, e.g. on sno worice
or when hydroplaning.
R The driver is per form ing sudden and lar ge
st eering mo vements.
Crosswind Assis tisoperational again as soon as
th ed riving conditions retur nton ormal.
Crosswind Assi stdetects stro ng crosswind gu sts
th at can impair abilit yofyourvehicle todrive
st ra ight ahead. Crosswin dAssis tinter venes
depending on thed irection and stre ngt hoft he
crosswind.
As tabilizing brak eapplicatio nhelps youtok eep
th ev ehicle on trac k.
Information is shown in thei nstrument clus terin
th ee vent of aclearly discernible inter vention by
Crosswind Assist.
Crosswind Assis tisactiveabove avehicle speed
of 50 mph(80 km/h )whent he vehicle is driving
st ra ight ahead or cornering gently. 13 8
Driving and pa rking
st
eering wheel. The speed can be se tintherange
between 15mp h(20 km/h) and 99 mph
(160 km/h) or between 15mp h(20 km/h) and
th ev ehicle's maximum speed.
Other features of ActiveD ista nce Assi st
DISTRONIC:
R Depending on thep reselected dis tance,
DISTRONIC inter venes ei ther dynamically
(shor tdista nce) or tosave fuel (long dis‐
ta nce).
R Depending on thev ehicle mass de tected, the
dynamics of theD ISTRONIC inter vention are
re duced.
R Rapid acceleration tothes tore ds peed is initi‐
ated if thet urns ignal indicator is switched on
to chang etot heovertak ing lane.
Ac tiveD ista nce Assi stDISTRONI Cisonly an aid.
The driver is responsible fort he dis tancetothe
ve hicle in front, forv ehicle speed and forb raking
in good time.
Sy stem limitations
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing ins tances:
R The radar sensor sareaffected bysno w,rain,
fo g, heavy spr ay,g lare, direct sunlight or
greatl yvarying ambien tlight.
R The radar sensor smaymalfunction in parking
ga rage soronr oads wit hsteep uphill or
downhill gradients.
R Ifth er adar sensor saredirty or co vered.
R On icy or slipper yroads, braking or accelerat‐
ing can caus ethe driv ewheels tolose trac‐
tion and thev ehicle could then skid.
R Stationar yobject sarenotd etected if these
we renotp reviousl ydetected as moving.
R On bends, target vehicles ma ybelostorn ot
re cognized cor rectl y.As aresult, atarget
ve hicle is no tused toregulat ethe speed
whic hmaylead tounwa nted accele ration.
Do no tuse ActiveD ista nce Assi stDISTRONI Cin
th ese situations. &
WARNING Risk of accident from acceler‐
ation or braking byActiveD ista nce Assi st
DISTRONIC
Ac tiveD ista nce Assi stDISTRONI Cmayaccel‐
erat eorb rake inthef ollowing cases, for
ex ample:
R Ifth ev ehicle pulls away usin gActiv eDis‐
ta nce Assi stDISTRONIC.
R Ifth es tore ds peed is called up and is con‐
siderably faster or slo werthan thec ur‐
re ntly driven speed.
R IfAc tiveD ista nce Assi stDISTRONI Cno
longer de tects avehicle in front or does
no treact toreleva nt objects. #
Alwaysc arefully obser vethet raffic con‐
ditions an dbereadytobrak eata ll
times. #
Take intoa ccount thet raffic situation
befor ecallin gupt hestored speed. &
WARNING Risk of accident du etoinsuf‐
fi cient deceleration byActiveD ista nce
Assi stDISTRONIC
Ac tiveD ista nce Assi stDISTRONI Cbrakes
yo ur vehicle wit hupto5 0% ofthem aximum
possible deceleration. If this deceleration is
no ts ufficient, ActiveD ista nce Assi st
DISTRONI Calertsy ou wit havisualand
acoustic warning. #
Inthese cases, adjus tyour speed and
ke ep asufficient dis tance. #
Brak ethe vehicle yourself and/or take
ev asiv eaction. &
WARNING Risk of accident if de tection
function of ActiveD istan ce Assi st
DISTRONI Cisimpaired
Ac tiveD ista nce Assi stDISTRONI Cdoesn ot
re act or has alimited reaction:
R when drivin gonadiffe re nt lane or when
ch anging lanes
R topedestrians, animals, bicycles or sta‐
tionar yvehicles, or unexpected obs tacles
R tocomple xtraffic conditions
R tooncomin gvehicles and crossing traf fic
As aresult, ActiveD ista nce Assi stDISTRONIC
ma yneith er giv ewarnings nor inter vene in
su ch situations. Driving and parking
14 3