2019 MERCEDES-BENZ SPRINTER brake sensor

card contains, in compact
form ,the mos timp or‐
ta nt information abou tyour vehicle e.g. ther out‐
ing of electric cables.
Fu rther information can be found at http://
www.mercedes-benz.de/qr-code. Data
storage Electronic control units
Electronic control unit
sareins talled in your vehi‐
cle. Some of these ar enecessar yfor thes afe
operation of your vehicle, while some assis tyou
when driving (driver assis tance sy stems). In addi‐
tion, your vehicle pr ovides com fort and enter tain‐
men tfunctions, whic harealso made possible by
electronic cont rolu nits.
The elect ronic control units contai ndatam emo‐
ri es whic hcan temp orarily or permanently store
te ch nica linformation abou tthe vehicle's operat‐
ing state, component loads, main tenance requ ire‐
ments and tech nica leventsorm alfunctions.
In general ,this information documents thes tate
of ac omponent part, amodule, asystemort he
sur rounding ssucha s:
R operatin gstatesofs ystemc omponents (e.g.
fl uid le vels, batter ystatus ,tirep ressure)
R status messages concernin gthe vehicle and
its individual components (e.g. number of
wheel revo lutions/speed, deceleration, lateral
acceleration ,displa yoft hefast ened seat
belts)
R malfunctions or defects in impor tant sy stem
components (e.g. lights, brakes)
R information on events leading tovehicle dam‐
age
R system reaction sinspecial drivin gsituations
(e.g. airbag deployment, inter vention of sta‐
bilit ycontrol sy stems)
R ambient conditions (e.g. temp erature, rain
sensor)
In addition toprov iding thea ctual cont rolu nit
function ,this dat aassists them anufacturer in
de tecting and rectifying malfunctions and opti‐
mizing vehicle functions. The majority of this data
is temp orar yand is onl yprocessed in thev ehicle
itself. Onl yasmall portion of thed ataiss tore din
th ee vent or malfunction memo ry.
When your vehicle is serviced, tech nica ldata
from thev ehicle can be read out byservice net‐
wo rkemplo yees (e.g. workshops, manufacturers)
or thirdp arties (e.g. breakdown services). Serv‐ ices include
repair services, maintenanc epro‐
cesses, warrant yclaim sand quality assurance
measures, fore xamp le. The read out is per‐
fo rm ed via thel egally prescribed por tfor the
diagnostics connection in thev ehicle. The
re spectiv eservice networ klocations or thirdp ar‐
ties collect, proces sand use this data. They
document tech nica lstatuses of thev ehicle,
assis tinfinding malfunctions an dimp roving qual‐
ity and ar etransmitted tothem anufacturer ,if
necessar y.Fu rthermore, them anufacturer is sub‐
ject toproduct liability .For this, them anufacturer
re qu ires tech nica ldataf romv ehicles.
Malfunction memories in thev ehicle can be reset
by aservic eoutle tasp artofr epair or mainte‐
nanc ework.
Depending on thes elected equipment, youc an
impor tdatai ntov ehicle con venience and info‐
ta inment function syourself.
This includes, fore xamp le:
R multimedi adatas uchasm usic,films or pho‐
to sf or playbac kinanintegratedm ultimedia
sy stem
R address book dat afor use in connection with
an integrated hands-free sy stem or an inte‐
grated navigation sy stem
R entered navigation destinations
R dataabout theu se of Interne tservices
This dat acan be sa vedl ocall yint hevehicle or it
is located on adevice whic hyou ha veconnected
to thev ehicle (e.g. smartphone, USB flash drive
or MP3 pla yer). If this dat aisstore dint hevehi‐
cle, youc an dele teit at an ytime. This dat ais
sent tothirdp arties onl yatyourrequ est, particu‐
lar lywhen youu se online services in accordance
wit hthe settings that youh ave selected.
Yo uc an stor eorc hangeconvenience settings/
individualization in thev ehicle at an ytime.
Depending on thee quipment, this includes, for
ex ample:
R seat and steering wheel position settings
R suspension and climat econt rols ettings
R Individualization suc hasinterior lighting
If yo ur vehicle is accordingly equipped,y ou can
connec tyour smartphone or ano ther mobile end
device tothev ehicle. Youc an control this by
means of thec ont role lements integrated in the
ve hicle. Images and audio from thes martphone
can be output via them ultimedia sy stem. Cer tain 26
General no tes

#
Remo vekey 1from your keyr ing. #
Inser tkey 1 intot he slot.
The vehicle is star teda fter ab rief time. #
Leavethek eyinser tedd uring thee ntir ejour‐
ne y. #
Ifyo up ullkey 1out of thes lot, thee ngine
continues torun. #
Have key 1checkedataq ualified specialist
wo rkshop.
If th ev ehicle doe snotstar t: #
Leavekey 1inthes lot. #
Press theb rake pedal. #
Startt he vehicle wit hthe start/ stop button.
% Yo
uc an also swit chon thep ower suppl yor
th ei gnition wit hthe start/ stop button. Breaking-in no
tes Pr
otect thee ngine during thef irst 1,000 miles
(1,500 km) by:
R driving at varying road and engine speeds.
R shiftin gtothe next gear up when or before
th et achome tern eedle is 00C3ofthew ay to the
re da rea.
R avoiding stre ss on thev ehicle suc hasdriving
at full thro ttle.
R nots hifting manuall ytoalowergear tobrake.
R afte r1 ,000 miles (1,50 0km),gradually
increasing thee ngine speed and accelerate
th ev ehicle up tofull speed.
R vehicles with automatic transmission: not
depressing thea ccelera torp eda lbeyo ndthe
pressur epoint (kickdown). This also applies if
thee ngine or parts of thed riv‐
et ra in ha vebeen replaced.
Also obser vethef ollowing breaking-in no tes:
R The sensor softhe ESP ®
driving saf etys ystem
adjus tautomaticall ywhile acertai nd ista nce
is bein gdrive na fter thev ehicle has been
delivered or af terr epairs. Full sy stem ef fec‐
tivenes sisnotreached until thee nd of this
te ach-in process.
R Newore xchanged brakepads, brak ediscs
and tires onl yprovide optimal braking and
bonding af ters everal hundred kilome ters.
Un tilthen, compensat efor ther educed brak‐
ing ef fect by applying greater pressur etothe
brak epedal. Driving tips
Note
sond riving &
WARNING Risk of accident du eto
object sinthe driver's foot we ll
Object sinthe driver's foot we ll ma yimp ede
pedal tr avel or bloc kadepressed pedal.
This jeopardizes theo perating and road
saf etyoft hevehicle. #
Stow all object sinthevehicle securely
so that they canno tget intot he driver's
fo ot we ll. #
Ensur efloor mats and carpets cannot
slip and pr ovide suf ficient room fort he
pedals. #
Do no tlay multiple floor mats or carpets
on topofo ne ano ther. &
WARNING Risk of accident du eto
unsuitable foot we ar
Operatio nofthe pedals ma yberestricted due
to unsuitable foot we ar suc has:
R Shoes wit hplatform soles
R Shoes wit hhigh heels
R Slippers #
When driving alw aysw ear suitable
shoes in order tobe able tooperat ethe
pedals safel 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 (/ page118).
% Chang
ethe shif trang eing oodt ime when
cruise control is acti vated. Obser vethed riv‐
ing tips (/ page106).
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 Driving and pa
rking 109

brakepads
byper form ing avisual inspection to
look forp ad material wear.
If yo ua reunabl etoc heckthe brakepad wear on
th ei nside of thew heels, remo vethew heels if
yo up ossess ther equired skills, or visit aqualified
specialis tworks hop.
If th eb rake pad material thickness is less than
0. 12 in (3 mm), ha vetheb rake pads checkeda nd
re placed at aqualified specialis tworks hop, if
necessar y.
Do no tsolely rely on theb rake pad wear sensor.
It is also strongly recommended that youh ave
th eb rake pads checkedataq ualified specialist
wo rkshop, no tonly at everyservice displa yedby
th em aintenanc einter vald ispla y,but also prior to
long journe ysand when ever thew heels are
re mo ved.
Ne wb rake discs and brakepads
Ne wb rakepads and brak ediscso nly reac ht heir
optimal braking ef fect af tera pproxima tely
10 0m iles( 10 0k ilome ters).
Unti lthen, compensat efor ther educed braking
ef fect by applying greater pressur etothe brake
pedal. Fors afet yr easons, Mercedes-Benz recom‐
mends that youo nlyh aveb rake pads and brake
discs whic hareappr ovedbyM ercedes-Benz
ins talled on your vehicle.
Other brak ediscs or brakepads ma ycompromise
th es afet yofy ourvehicle.
Alw aysr eplace all brak ediscs and brakepads on
an axle at thes ame time. Alw aysi ns tall new
brakepads when replacing brak ediscs.
Pa rking brake &
WARNING Risk of skidding or an acci‐
dent bybraking wit hthe parking brake
If yo uh ave tobrak eyour vehicle wit hthe
parking brake, theb raking dis tance is consid‐
erab lylonger and thew heels ma yloc k. There
is an increased risk of skidding and/or acci‐
dent. #
Only brak ethe vehicle wit hthe parking
brak eift he service brak ehasfailed. #
Inthis case, do no tappl ythe parking
brak ewitht oo muc hforce. #
Ifth ew heels loc k,immediately release
th ep arking brak easmuchasr equired
fo rt he wheels totur na gain. Ve
hicles with amanual parking brake
When driving on wetroads or dirt-co vereds urfa‐
ces, road salt or dir tmayget intot he parking
brake. This causes cor rosion and areduction of
braking forc e.
In order topreve ntthis, driv ewitht he parking
brak elightl yapplied from time totime.
Whe ndoing so, driv efor ad ista nce of appr ox‐
imatel y300 ftat am aximum speed of 13mph
(20 km/h).
The brak elights do no tlight up when youb rake
th ev ehicle wit hthe parking brake.
Information about driving on wetroads
Hydroplaning &
WARNING Risk of aquaplaning because
tir et read istool ow
Depending on thed epth ofthew ater on the
ro adw ay,a qu aplaning can occur despit esuffi‐
cient tir etread dep thand lo wspeed. #
Avoid tir eruts an dbrake carefully. The
refore ,inh eavy rain or other conditions in
whic hhydroplaning can occu r,driv easf ollows:
R Reduce your speed.
R Avoid tir eruts.
R Brak ecarefully.
Drivin gonflooded roads
Bear in mind that vehicles tr aveling in front or in
th eo pposit edirection creat ewaves. This may
cause them aximum permissible dep thofwa ter
to be exc eeded. These no tesm ustbeo bserved
unde rall circum stances. Otherwise, youc an
damag ethe engine, electrics and transmission.
If yo uh ave todriv eons tret ch es of road on which
wa terh as collected, please bearinm indthef ol‐
lowing:
R The wate rleve lofs tandin gwater ma ynotbe
abo vethel ow er edg eofthe front bumper.
R Youm aydriv enof astert han walkin gpace.
Obser vethen otes on ford ing while off- road for
all-wheel driv evehicles (/ page111). 11 0
Driving and pa rking

Emer
gency braking In
thee vent of an emergency ,you can brak ethe
ve hicle while it is in motion wit hthe electric park‐
ing brake. #
While driving, press switch 1ofthee lectric
parking brake.
The vehicle is braked as long as youk eep
switch 1ofthee lectric parking brake
depressed.
The longer electric parking brak eswitch 1is
depressed, theg reater theb raking forc e.
During theb raking procedure, youw illreceiv ethe
fo llowing feedbac kfromt hevehicle:
R awarning tone sounds
R the" Release parking brake" displa ymessage
appears
R ther ed 0049 and0024 (USA) or 0024(Can‐
ada) indicator lamps in theI nstrument Display
fl ash
When thev ehicle has been braked toas tandstill,
th ee lectric parking brak eisapplied. Pa
rking thev ehicle forane xtended period Pa
rking thev ehicle forl on gerthan four
we eks #
Method 1: connec tthe batteries toatrick le
ch arge r. #
Method 2: disconnect thev ehicle star terb at‐
te ry. #
Method 3: switchofft he po wersupply using
th eb atter ymain switc hand disconnect the
auxiliar ybatter yonthe vehicle. #
Method 4: interrupt thep owe rsupply byacti‐
va ting standb ymode (/ page137). Th
ec harg eleve loft he batter ymustbec hecked
eve rythre ew eek sifnom easures ar etaken to
maintain theb atter ycharge. #
Batte ryvoltag ebelow1 2.2 V:charge the
batter ytopreve nt deep discharg edamage.
% Fu
rther information can be obtained at a
qu alified specialis tworks hop. St
andb ymode Ac
tivating/deactivatin gstandb ymode
Re quirements:
R thee ngine is switched off.
On-boar dcomputer:
4 Settings 5
Vehicle
5 Ruhezustand (Stan dby) #
Toactivate/deactivate: selectYesorNo. Drivin
gand drivin gsafet ys ystems Note
on driving sy stems and your responsibil‐
ity Yo
ur vehicle is equipped wit hdriving sy stems
whic hassis tyou in driving, parking and maneu‐
ve ring thev ehicle. The driving sy stems ar eaids
and do no trelie veyouofy ourresponsibility.
Alw aysp ayattention tothet raffic and inter vene
if necessa ry.Bea wareofthel imitations rega rd‐
ing thes afeu se of these sy stems. Information about sensors
Cer
tain driving and driving saf etys ystems use
sensors 1tomonitor thea reainf ront of, behind
or next tothev ehicle (depending on thev ehicle's
equipment). Driving and parking
137

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 (/ page274). Th esen‐
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)
(/ page138)
R ASC ( Acceleration SkidControl)
(/ page138)
R BAS(Bra ke Assist System) (/ page138)
R ESP ®
(Electronic Stability Program)
(/ page139)
R EBD ( Electronic Brakeforce Distribution)
(/ page140)
R ActiveB rake Assi st (/ pag e140)
R Cruise control (/ page142)
R ActiveD ista nce Assi stDISTRONIC
(/ page 144)
R Hill star ta ssist
R HOL Dfunction (/ page146)
R Parking Assis tPARKTRONIC (/ page 146)
R Rear vie wcamer a(/ pag e148)
R 360° Camer a(/ pag e150)
R ATTENTION ASSIS T(/ pag e152)
R Traf ficS ign Assi st (/ pag e153)
R Blind Spo tAssist ( / pag e155)
R ActiveL aneK eeping Assis t(/pag e158) 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 13 8
Driving and pa rking

Cancelin
gabrake application of Activ eB rake
Assi st
Yo uc an cancel abrak eapplicatio nofActive
Brak eAssistat an ytimeb y:
R Fullyd epressin gthe accelerator pedal or with
kickdown.
R Fullyr eleasing theb rake pedal (onl yduring
situation-dependen tbraking assis tance).
Ac tiveB rake Assi stma ycancel theb rake applica‐
tion when one of thef ollowing condition sisfulfil‐
led:
R Youm aneuver toavo idtheo bstacle.
R Thereis no longer arisk of collision.
R An obs tacle is no longer de tected in front of
yo ur vehicle.
Sy stem limitations
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing situations:
R The sensor sareaffected bysno w,rain, fogor
heavy spr ay.
R The sensor saredirty ,fogged up, damaged or
co vered.
R The sensor sareaffected byinter fere nce from
ot her radar sources, e.g. strongradar reflec‐
tions in parking garage s.
R Ifal oss of tir epressur eorad efectivetireh as
been de tected and displa yed.
R Full sy stem per form anc eisn otavailable fora
fe ws econd safter swit ching on thei gnition or
af te rd riving off.
The sy stem ma ynotreact cor rectly in thef ollow‐
ing situations:
R In comple xtraf fics ituations, objects ma ynot
al wa ys be clear lyde tected.
R Pedestrians or vehicles mo vequickl yintot he
de tection rang eoft he sensors.
R Pedestrians ar eobscured by other objects.
R In bends wit hanarrow radius. Setting
Activ eB rake Assi st Requ
irements:
R The ignition is switched on Multimedia sy
stem:
4 © 5
Settings 5
Assistance
5 Active Brake Assist
The following settings ar eavailable:
R Early
R Medium
R Late #
Select asetting.
The Medium setting is selec teda utomatically
eve rytime thee ngine is star ted.
Deactivating Activ eB rake Assi st
% It is
recommended that ActiveB rake Assi stis
alw aysl efta ctivated. #
Select Off.
The dis tance warning function and autono‐
mous brakin gfunction ar edeactivated.
% When
ActiveB rake Assi stis deactivated, the
00D4 symbol appears inthes tatus area of
th em ultifunction displa y. Cruise control
Fu
nction of cruise control
Cruise cont rola ccelerates and brakes thev ehicle
automaticall yinorder tomaintain apreviously
st ored speed.
If yo ua ccelerat etoovertake, fore xamp le,the
st ored speed is no tdele ted. If your emo veyour
fo ot from thea ccelerator pedal af tero vertaking,
cruise control will resume speed regulation back
to thes tore ds peed.
Cruise contro lisoperated using thec orrespond‐
ing steering wheel buttons. Youc an stor ea ny
ro ad speed abo ve15 mp h(20 km/h).
If yo uf ail toadap tyour driving style, cruise con‐
trol can neither reduce ther isk of an accident nor
ove rride thel aws of ph ysics. It canno ttak ei nto
account road, weather or traf ficc onditions.
Cruise control is only an aid. Youa re re sponsible
fo rt he dis tance tothev ehicle in front, forv ehicle
speed, braking in good time and fors taying in
yo ur lane.
Displa ysinthem ultifunction display
The status of cruise control and thes tore ds peed
ar es hown in them ultifunction displa y. 14 2
Driving and pa rking

#
Todeactivat ecruisec ontrol: push rock er
switch 3(CNCL) down.
If cruise cont rolisd eactivated, it can be reactiva‐
te dasf ollows:
R rock er switch 2(SET+ )or(SET-) stores the
cur rent speed and thev ehicle maintains this
speed
R rock er switch 3(RES) calls up thel asts peed
st ored and thev ehicle maintains this speed
% Ifyo ub rake, deactivat eESP®
or if ESP ®
inter‐
ve nes, cruise control is deacti vated.
When yous wit ch offt he vehicle, thel ast
speed stored is cleared. Ac
tiv eD ista nce Assis tDISTR ON IC Fu
nction of Activ eD ista nce Assis tDISTRONIC
Ac tiveD ista nce Assi stDISTRONI Cmaintains the
se ts peed on free-flowing roads. If vehicles ahead
ar ed etected, thes etdis tance is maintained ,if
necessa ryuntil thev ehicle comes toah alt.The
ve hicle accelerates or brakes depending on the
dis tance tothev ehicle in front and thes etspeed.
Speed and dis tance ar esetand stored on the
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. 14 4
Driving and pa rking