2020 MERCEDES-BENZ SL CLASS brake

If
the brake system hasonly been subject to
modera teload s,you shoul dtest thefunction-
ali ty of you rbrakes atregul arintervals.
Information onBAS (Brake Assist) (Ypage 61)
and onBrake Assist withCross-Tra fficAssist
(Y page 61).
Mercedes-Benz recommendsthatyouonly
have brake pads/linings installedon you rvehi-
cle which havebeen appro vedforMercedes-
Benz vehicle sor which correspond toan
equi valent qualitystandard. Brakepads/
linings whichhavenotbeen appro vedfor
Mercedes-Benz vehiclesor which arenot ofan
equi valent qualitycould affect yourvehicle 's
opera tingsafety.
Mercedes-Benz recommendsthatyouonly use
brake fluidthat hasbeen specia llyappro ved
for you rvehicle byMercedes-Benz, orwhich
corresponds toan equi valent qualitystandard.
Brake fluidwhich hasnotbeen appro vedfor
Mercedes-Benz vehiclesor which isnot ofan
equi valent qualitycould affect yourvehicle 's
opera tingsafety.
High-performance andceramic brake
system (Mercedes-AMG vehicles) The
AMG brake systems aredesig nedfor
heavy loads.This may leadto noise when
braking. Thiswilldepend on:
R Speed
R Braking force
R Ambient conditions, e.g.temperature and
humid ity
The wearof individ ualcomponents ofthe
brake system, suchasthe brake pads/linings
or brake discs, depends onthe individ ualdriv-
ing style andopera tingconditions.
For this reason, itis impossi bletostate amile-
age that willbe vali dunder allcircumstances.
An aggres sivedriving stylewilllea dto high
wea r.You canobtain moreinformation onthis
from aqua lifiedspecia listworkshop.
New andrepla cedbrake padsanddiscs only
reach theiroptimum brakingeffectaftersev-
eral hundred kilometers ofdriving. Compen-
sate forthis byappl ying greater forcetothe
brake pedal.Keep thisinmind, andadaptyou r
driving andbraking accordingly duringthis
break-in period.
Excessive heavybraking resultsincorrespond-
ingly highbrake wear.Observe thebrake sys-
tem warning lampinthe instrument cluster and
note anybrake status messag esinthe
multifu nctiondisplay.Especial lyfor high per-
formance driving,itis important tomaintain
and have thebrake system checked regularly. Drivin
gon wetroads
Hydroplaning If
water hasaccumul atedtoacertain depthon
the road surface, thereisadanger ofhydro -
pla ning occurring.
For this reason, inthe event ofheavy rainorin
conditions inwhich hydroplaning mayoccur,
you must driveinthe follow ingmanner:
R lowe ryou rspeed
R avoid ruts
R avoid suddensteering movements
R brake careful ly
Drivin gon floo ded roads !
Do
not drive through floodedarea s.Check
the depth ofany water before driving
through it.Drive slowlythrough standing
water. Otherwise ,water couldenterthe
vehicle interior orengine compartment. It
can then dama gethe engine's orautoma tic
transmission's electroniccomponents. It
can also besucked inby the engine's air
intake connection andcause engine dam-
age. Winter
driving G
WARNING
If you shift down onaslip pery road surface
in an attempt toincrease theengine's brak-
ing effect, thedrive wheel scould losetheir
grip. There isan increased dangerofskid-
ding andaccidents.
Do not shift down foraddi tional engine brak-
ing onaslip pery road surface. G
DA
NGER
If the exhau stpipe isblocked oradeq uate
ventilation isnot possib le,poiso nous gases
such ascarbon monoxide (CO)mayenter
the vehicle .This isthe case, e.g.ifthe vehi- 154
Drivi
ngtipsDrivi ngand parking

cle
beco mestrapped insnow .The reisaris k
of fata linju ry.
If yo uleave theengi neorthe auxiliary hea t-
ing runni ng,make sure the exha ustpi pe and
are aaro und thevehi cleare clearofsnow .
To ensu rean adequ ate suppl yof fres hair,
ope nawi ndow onthe sideof the vehi cle
that isnot facinginto thewind.
Have your vehi clewinter-pro ofedataqu alifi ed
spe cialist wo rksho pat the onse tof winter.
Drive particu larly care fullyon slippe ryroa d
su rface s.Avoi dsu dde nacce lerati on, stee ring
and braking mane uvers.Do not usecrui se
control .
If the vehi clethrea tenstoskid orcannot be
stop pedwhenmovi ngatlow speed:
X Shif tthe transm ission topos ition 005C.
The outsid etempe ratureindi cator isnot
des igne dto serv eas an ice-wa rning device
and isthere foreunsu itable for that purpo se.
Ch ange sin the outsid etempe ratureare dis-
pl ay ed afte ra sho rtdel ay.
Indi cated tempe raturesjust above thefree zing
poi ntdo not guara ntee thattheroadsu rface is
free ofice .The roadmay stillbe icy,esp ecially
in wo ode dare asoron bridge s.The vehicle
cou ldskid ifyo ufai lto adaptyo ur driving
styl e.Alw aysad aptyo ur driving styleand drive
at aspe edtosuitthe prevailing weathe rcondi -
tions .
You should pa yspe cialattenti ontoroa dcon-
di tions whentempe raturesare around freezing
poi nt.
For more informa tion ondriving with snow
cha ins, see (Ypage 298).
For more informa tion ondriving with summer
tire s,see (Ypage 298 ).
Obs erve thenotes inthe "Winter operation"
secti on(Ypage 298 ). Dri
vin gsys tems Crui
secontrol
Gen eral notes Cru
isecontrol maintai nsaconsta ntroa d
spe edfor you. Itbra kes automa tically in ord er
to avo idexcee ding the setspeed. Onlong and stee
pdow nhillgra dients, especially ifthe vehi -
cle isladen, youmus tsel ect alow ergea rin
goo dtime .By doing so, youwi llmake useof
the braking effectof the engi ne.Thisrel ieves
the loadon the brakesystem andprevents the
bra kes from overheating andwearing too
qu ickl y.
Use cruisecontrol onlyifroa dand traffi ccon-
di tions make itap pro priate tomai ntai na
stea dyspe edfor apro long edper iod.You can
store anyroadspe edabove 20mph
(30 km/h ).
Impo rtant safetynotes If
yo ufai lto adaptyo ur driving style,crui se
control canneith erred uce theriskof an acci -
dent norover ridethe laws ofphy sics .Cru ise
control cannottakeintoacco unttheroad,
traffi cand weathe rcondi tions.Cru isecontrol
is only anaid. You areresp onsible for the dis-
tance tothe vehi cleinfront, forvehi clespe ed,
for braking ingoo dtime andforstay ingin
la ne.
Do not usecrui secontrol :
R in roa dand traffi ccondi tions whichdo not
al low youto mai ntai naconsta ntspe ede.g.
in hea vytraffi cor on winding roads
R on slippe ryroa dsu rface s.Braki ngoracce l-
era ting couldcau sethe drive whe elsto los e
tracti onand thevehi clecou ldthen skid
R whe nthere ispoo rvis ibility ,e.g. dueto fog,
hea vyrainor snow
If there isacha nge ofdri vers ,ad vis ethe new
dri ver ofthe speedstore d. Dri
vin gsys tems
155Drivin gand parking Z

pressure
pointforahigher speed, or
down 0085for alower speed.
Ever ytime thecruise control lever is
pressed upordown, thelast speed storedis
incr eased orreduced.
i The
speed indicat edinthe speedomet er
may differ slightly fromthespeed stored.
i Cruise
control isnot deactiv atedifyou
depress theaccelerat orpedal. Forexample,
if you accelerat ebriefly toovert ake,cruise
con trol adjusts thevehicle's speedtothe
last speed storedafter youhave finished
overt aking.
Deactivat ingcruise control There
areseveral waystodeactiv atecruise
con trol:
X Brief lypress thecruise control lever for-
wards 0043.
or X Brak e.
Cruise control isautomatic allydeactiv atedif:
R you engage theelect ricparkin gbrake
R you aredriving atless than 20mph
(30 km/ h)
R ES P®
int erven esoryou deactiv ateESP®
R Brak eAssist interven es
R you move outoftran smission position005B
If cruise control isdeactiv ated,youwillhear a
warning tone.You willsee theCruise Con‐ Cruise
Con‐
trol Off trol
Offmessage inthe multifun ction dis-
play forapproximat elyfive secon ds.
i When
youswitch offthe engin e,the last
speed storediscleared. Active
Distance AssistDISTRON IC
General notes Ac
tive Distance Assist DISTRONIC regulates
the speed andautomatic allyhelps youmain-
tain thedistanc efrom thevehicle detectedin
fron t.Vehicles aredetec tedwith theaidofthe
radar sensor system. Active Distance Assist
DIS TRONIC brakesautomatic allytoavoid
exc eeding thesetspeed ortomaint ainthe
designat eddistanc efrom thevehicle infron t.
You must select alower gearingood timeon
long andsteep downhill gradients,especially if
the vehicle isladen. Bydoing so,you willmake
use ofthe brakin geffec tof the engin e.This
relieves theload onthe brake system andpre-
vent sthe brakes fromoverheat ingand wear-
ing too quickly.
If Ac tive Distance Assist DISTRONIC detects
that thereis arisk ofacollision withthevehi-
cle infron t,you willbewarned visuallyand
audibly. Active Distance Assist DISTRONIC
cann otpreven ta collision withoutyourinter-
vent ion. Anintermit tentwarning tonewill then
sound andthedistanc ewarning lampwilllight
up inthe instrument cluster.Brak eimmedi-
ately inorder toincr ease thedistanc efrom
the vehicle infron t,or take evasive action,pro-
vided itis safe todo so.
For Active Distance Assist DISTRONIC to
assist youwhen driving ,the radar sensor sys-
tem must beoperation al.
Ac tive Distance Assist DISTRONIC operates in
the speed rangebetween 0mph (0km/ h)and
120 mph (200 km/h).
Do not useActiv eDis tance AssistDISTR ONIC
wh ile dri vin gon roa dswith stee pgra dients .
As Activ eDis tance AssistDISTR ONICtra ns-
mits rada rwa ves ,it can resemb lethe rada r
de tecto rsof the responsi ble au thor ities. You
can referto the releva ntcha pterin the Opera -
tor' sMa nua lif qu esti ons areas ked abou tthi s.
i USA
only:
Thi sde vic eha sbe en appro ved bythe FCC
as a"V eh icu larRa darSys tem" .The rada r
sen sor isinte ndedfor usein an automo tive
ra da rsy stem only.Re mov ing,tam perin g
wi th, oralteri ngthe devic ewi llvoi dany war-
ra ntie s,and isnot permi tted bythe FCC .Do
not tamperwi th, alter, orusein any non-
ap pro ved way. Dr
ivi ng system s
157Drivi ng andparki ng Z

Any
unauthorized mod ificati ontothisde vice
cou ldvoi dthe user' sau thor itytoopera te
the equipme nt.
i Ca
nad aonl y:Thi sde vice comp lies with
RSS-2 10ofIndu stry Canad a.Ope ratio nis
su bje ctto the followi ng two cond itions:
1. Thi sde vice maynot causeinte rference ,
and
2. Thi sde vice mustacce ptany interference
rece ived,incl uding inte rference thatma y
cau seund esired opera tionof the device .
Re mova l,tamp ering, oralteri ngofthe
de vice willvoi dany warrantie s,and isnot
pe rmi tted .Do not tamp erwith, alter, oruse
in any non-a pprove dwa y.
Any unauthorized mod ificati ontothisde vice
cou ldvoi dthe user' sau thor itytoopera te
the equipme nt.
Impo rtant safetynotes G
WA
RNING
Active Distance AssistDISTR ONICdo es not
rea ctto:
R pe op leor ani ma ls
R sta tionar yob jects inthe road,e.g .stop -
pe dor parked vehicles
R onco ming vehicles and crossing traf fic
As ares ult, Active Distance Assist
DISTR ONICma ynei ther give warning snor
inte rveneinsuch situa tions. The reisaris k
of an acci dent.
Alw ayspa ycar efulatte ntionto the traffic
si tua tionand berea dytobra ke. G
WA
RNING
Active Distance AssistDISTR ONICdo es not
rea ctto:
R pe op leor ani ma ls
R sta tionar yob jects inthe road,e.g .stop -
pe dor parked vehicles (ve hicle swi thou t
the Driv ingAssi stance packag e)
R sta tionar yob jects inthe road,e.g .stop -
pe dor parked vehicles, ifsu fficie ntdetec-
tio nis not possi ble (ve hicle swi th the Driv -
ing Assi stance packag e)
R onco ming vehicles and crossing traf fic As
ares ult, Active Distance Assist
DISTR ONICma ynei ther give warning snor
inte rveneinsuch situa tions. The reisaris k
of an acci dent.
Alw ayspa ycar efulatte ntionto the traffic
si tua tionand berea dytobra ke. G
WA
RNING
Dis tance keeping assista ntcanno tal wa ys
cle arly identi fyothe rroa dus ers and com-
pl ex traf ficsitua tions.
In such cas es, dista nce keeping assista nt
can:
R acce lera te or bra kethe vehicleune xpect-
ed ly
R inte rveneune xpected ly
The reisaris kof an acci dent.
Co ntinu eto drive car efully and berea dyto
bra ke, especially ifdista nce keeping assis-
tant warns you. G
WA
RNING
Active Distance AssistDISTR ONICbra kes
yo ur veh iclewi th up to50% ofthe maximu m
po ssi ble de cel era tion.Ifthi sde cel era tionis
not sufficie nt, Active Distance Assist
DISTR ONICalerts youwi th avis ualand
aco ustic warning .The reisaris kof an acci -
de nt.
Adju styour spe edinthes ecas esand main-
tai nsu fficie ntdista nce.
App lythe brakes yoursel fand /or take eva-
si ve acti on.
! Whe
nActive Distance AssistDISTR ONIC
or the HOLD functio nis acti vated ,the vehi-
cle brakes automa tically in certa insitua -
tio ns.
To avoid da ma getothe vehicle, de acti vate
Active Distance AssistDISTR ONICand the
HOLD functio nin the followi ng orsimil arsit-
ua tio ns:
R wh en tow ingthe vehicle
R in the carwash
Active Distance AssistDISTR ONICcan neither
red uce theriskof an acci dent ifyo ufai lto 15
8 Dri
ving sys temsDrivi ng andparki ng

R
the driver 'sdo or mu stbe closedwh en you
shi ftfro m005D to005B oryour seat beltmu st
be faste ned .
R the front-pa ssenge rdo or mu stbe closed.
R the vehiclemu stnot skid.
Ac tiv atin g
X Bri eflypu llthe cruise contro lle ver towards
yo u0085, up0043 ordown 0044.
Activ eDis tance AssistDISTR ONICis acti va-
ted .
X To
adjus tthe setspe edin1mph incre -
men ts(1 km/ hin cre men ts):bri eflypre ss
the cruise contro lle ver up0043 tothe pres-
su re point for ahighe rsp ee d, or down 0044to
the pressu repoint for alowe rsp ee d.
Ever ytim ethe cruise contro lle ver is
pre sse dup ordown, thelast spee dstor edis
incr easedor red uce d.
or X To
adjus tthe setspe edin5mph incre -
men ts(10km/ hin cre men ts):bri efly
pre ssthe cruise contro lle ver up0043 past the
pre ssu repoint for ahighe rsp ee d, or
do wn 0044past the pressu repoint for alowe r
sp ee d.
Ever ytim ethe cruise contro lle ver is
pre sse dup ordown, thelast spee dstor edis
incr easedor red uce d.
X Re mov eyo ur foo tfro mthe accelera tor
pe dal.
Yo ur veh iclead apts its spee dto tha tof the
veh iclein fro nt, butonl yup tothe desired
stor edspee d.
i If
yo udo not fully rel ease the accelera tor
pe dal,the Active DistanceAssist pas‐ Act
ive DistanceAssist pas‐
siv e siv
emes sage appe arsin the multifu nctio n
di sp lay. The setdi sta nce toaslow er-m oving
veh iclein fro ntwillthe nnot bemainta ined.
Yo uwi llbe drivin gat the spee dyo ude ter-
mi ne bythe positio nof the accelera tor
pe dal.
Yo ucan also acti vate Activ eDis tance Assist
DISTR ONICwh en stationar y.The lowe stspee d
tha tcan besetis 20 mph (30km/h ).
Ac tiv atin gat the curren tspe ed/ last
sto red speed G
WA
RNING
If yo ucal lup the stor edspee dand itdiffe rs
fro mthe current spee d, the vehicleacc eler- ate
sor decel era tes.If yo udo not know the
stor edspee d, the vehiclecou ldacc elera te
or bra keune xpected ly.Th ere isaris kof an
acc ident.
Pa yatte ntionto the roadand trafficcond i-
tio ns befor ecal ling up the stor edspee d. If
yo udo not know thestor edspee d, stor ethe
de sired spee dag ain.
X Bri eflypu llthe cruise contr ollever towards
yo u0085.
X Re mov eyo ur foo tfro mthe accelera tor
pe dal.
Th efir st tim eActiv eDis tance Assist
DISTR ONICis acti vated ,it stor esthe current
sp ee dor reg ulate sthe spee dof the vehicle
to the previouslystor edspee d.
Pul ling awayand driving
X If
yo uwa nttopul law aywith Activ eDi s-
tanc eAs sist DISTRO NIC:rem ove your foo t
fro mthe brakepedal.
X Bri eflypu llthe cruise contr ollever towards
yo u0085.
or X IfActiv eDis tance AssistDISTR ONICis acti -
va ted :acc elera tebri efly.
Yo ur veh iclepu lls aw ay and adapts its spee d
to tha tof the vehiclein fro nt. Ifno veh icleis
de tecte din fro nt, your veh icleacc elera tes
to the setsp ee d.
The vehiclecan also pullaw ay when itis facing
an unidentif ied ob sta cle orisdri vin gon adi f-
fer ent line fromano therveh icle. Theveh icle
the nbra kes automa tically. Be rea dytobra ke
at alltim es.
If the reisno veh iclein fro nt, Activ eDis tance
Assi stDISTR ONICop era tes inthe same way
as cru ise contro l.
If Activ eDis tance AssistDISTR ONICde tects a
sl ow er-m oving veh iclein fro nt, itbra kes your
veh icle. In thi swa y,the dista nce youha ve
se lected isma inta ined.
If Activ eDis tance AssistDISTR ONICde tects a
fa ste r-mo vingveh iclein fro nt, itincr easesthe
dri vin gsp ee d. How ever,the vehicleis onl y
acc elera ted uptothe spee dyo uha ve stor ed. 16
0 Dr
ivi ng system sDrivi ng andparki ng

Selec
tingthedrive progra m
All vehicles (exceptAMG vehicles ):Act ive
Distanc eAssist DISTRONIC supportsasporty
driving stylewhen youhave selected theSor
S+ drive program (Ypage 133). Acceleration
behind thevehicle infront ortothe setspeed
is then noticeably moredynamic. Ifyou have
selected theCor Edriving program, thevehi-
cle accelerates moregently. Thissettin gis
recommen dedinstop-and- starttraffic.
AMG vehicles :Act ive Distanc eAssist
DISTRONIC supportsasporty driving style
when youhave selected theSor S+ orMdrive
program (Ypage 132). Acceleration behind
the vehicle infront ortothe setspeed isthen
notic eably moredynamic. Whenyouselect the
C drive program, thevehicle accelerates more
gently. Thissettin gis recommen dedinstop-
and-start traffic.
Changing lanes
If you want tochange tothe overtakin glane
on multi-lane roads,Active Distanc eAssist
DISTRONIC supportsyouif:
R you aredriving fasterthan45mph
(70 km/h)
R Act ive Distanc eAssist DISTRONIC ismain-
taining thedistance toavehicle infront
R you switch onthe appropriate turnsignal
R Act ive Distanc eAssist DISTRONIC doesnot
current lydetect adanger ofcollision
If these condition sare fulfilled, yourvehicle is
accelerated. Acceleration willbeinterrupt edif
changing lanestakes toolong orifthe dis-
tance between yourvehicle andthevehicle in
front becomes toosmall.
i When
youchange lanes,Active Distanc e
Assist DISTRONIC monitorsthe left lane on
left-hand- drivevehicles orthe right laneon
right-han d-drivevehicles.
Stopping If Act ive Distanc eAssist DISTRONIC detects
that thevehicle infront isstopping, itbrakes
your vehicle untilitis stationary.
Once yourvehicle isstationary, itremains sta-
tionary andyoudonot need todepress the
brake. Afteratime, theelectric parking brake
secures thevehicle andrelieves theservice
brake.
Depending onthe specified minimum distance,
your vehicle willcome toastandst illat asuffi- cient
distance behindthevehicle infront .The
specified minimum distanceisset using the
cont rolonthe cruise controllever.
The electric parking brakesecures thevehicle
automatically ifAct ive Distanc eAssist
DISTRONIC isactivated and:
R the driver's doorisopen andthedriver's
seat beltisunfastened
R the engine isswitched off,unless itis auto-
matically switchedoffbythe ECO start/
stop funct ion
R asystem malfunction occurs
R the power supply isnot sufficient
If amalfunction inthe electric parking brake
occurs, thenthetransm issionmayalsobe
shifted intoposition 005Dautomatically.
Setting aspeed Keep
inmind thatitmay take abrief moment
until thevehicle hasaccelerated orbraked to
the speed set.
X To
adj ust the setspeed in1mph incre-
ments (1km/h increments): brieflypress
the cruise controllever up0043 tothe pres-
sure point forahigher speed, ordown 0044
for alower speed.
Every timethecruise controllever is
pressed upordown, thelast speed stored is
increased orreduced.
X To
adj ust the setspeed in5mph incre-
ments (10km/h increments): briefly
press thecruise controllever up0043 past the
pressure pointforahigher speed, or
down 0044for alower speed.
Every timethecruise controllever is
pressed upordown, thelast speed stored is
increased orreduced.
Setting aspecified minimum distance You
cansetthe specified minimum distance
for Active Distanc eAssist DISTRONIC byvary-
ing the time span between oneandtwosec-
onds. Thisdetermines thedistance thatActive
Distanc eAssist DISTRONIC isto maintain from
the vehicle infront ,depending onthe road
speed. Youcanseethis distance inthe multi-
funct iondisplay (Ypage 162).
The specified minimum distancecanbe
changed whileActive Distanc eAssist
DISTRONIC isswitched onoroff. Driving
systems
161Drivingandparking Z

Deact
ivating Act ive Dist ance Assi st
DIST RONIC Crui
secontro llev er
The reare severalways todeac tivat eAc tive
Di stanc eAs sis tDI ST RON IC:
X Brief lypre ssthecr uise contro llev erfor-
ward s0043.
or X Brak e, unl ess theveh icle isstat ion ary.
Whe nyou deac tivat eAc tive Distanc eAs sis t
DI ST RON IC,theAct ive DistanceAssist Act
ive DistanceAssist
Off Off
messageappe arsonthemult ifunction dis-
play forappr oximat elyfivesec onds.
i The
lastspeedstor ed rem ainsst or ed unt il
you switchoffth een gin e.
i Ac
tive Distanc eAs sis tDI ST RON ICisno t
deac tivat ed ifyou depr esstheacc eler ator
peda l.If you acceler ateto overt ake, Ac tive
Di stanc eAs sis tDI ST RON ICadj ust sth eveh i-
cl e's spe edtothelast speedstor ed after
you havefin ish ed overt aking.
Ac tive Distanc eAs sis tDI ST RON ICisaut omati-
cal lydeac tivat ed if:
R you engage theelec tric par king bra keorif
th eveh icle isaut omatically securedwit hth e
elec tric par king bra ke
R ES P®
inte rven es oryou deac tivat eES P®
R thetrans mis sionis in pos ition 005D, 005Eor005C
R you pull thecr uise contro llev ertoward syou
in order topull away andthefron t-
pass enger dooris ope n
R you activat eAc tive Par king Assis t
R theveh icle issk iddi ng
If Ac tive Distanc eAs sis tDI ST RON ICisdeac ti-
vat ed aut omatically, youwillhear awarn ing
to ne .The Active DistanceAssist Off Act
ive DistanceAssist Off mes
sagewill appe aron themult ifunction dis-
play forappr oximat elyfivesec onds.
Ti ps for drivin gwit hAct ive Dist ance
Assis tDIST RONIC Gen
eral not es
The follow ing co ntain sdes cript ion sof certain
ro ad and traff icco nd ition sin whic hyou mus t
be par ticul arly atte nt ive .In suc hsit uat ions,
bra keifne cessa ry.Active Distanc eAs sis t
DI ST RON ICwill then be deac tivat ed.
Cor nering, goin gint oan dcom ingout of
a bend The
abilityof Active Distanc eAs sis t
DI ST RON ICtodet ectveh icles when corneri ng
is lim ited. Your vehicle may brakeune xpec t-
edly orlate.
Ve hic les trav elin gon adi ffer ent line Ac
tive Distanc eAs sis tDI ST RON ICmay not
det ectveh icles that are notdri vin gin themid -
dle oftheir lane.The distanc eto theveh icle in
fr on twill betoosho rt. Dri
ving systems
163Dr ivi ng andparki ng Z

Other
vehicles changing lanes Act
ive Dist ance Assist DISTRONIC hasnot
detect edthe vehicle cuttinginyet. Thedis-
tanc eto this vehicle willbetoo short .
Nar row vehicles Act
ive Dist ance Assist DISTRONIC hasnotyet
detect edthe vehicle infron ton the edge of
the road because ofits narrow width.Thedis-
tanc eto the vehicle infron twill betoo short .
Obstr uctions andstationary vehicles Act
ive Dist ance Assist DISTRONIC doesnot
brake forobstacles orstat ionary vehicles. If,
for example, thedetect edvehicle turnsa cor-
ner and anobstacle orstat ionary vehicle is revealed,
Active Dist ance Assist DISTRONIC
will notbrake forthem.
Crossing vehicles Act
ive Dist ance Assist DISTRONIC maymis-
taken lydetect vehicles thatarecross ingyour
lane.
If you activat eAct ive Dist ance Assist
DIS TRONIC underthefollowing conditions, the
vehicle couldpullaway unintentionally:
R at traff iclights withcross ingtraff ic,for
example
R ifthere isavehicle infron t,after across ing,
with theHOLD function activat ed
Active Distance AssistDISTRON ICwith
Active Steering Assist General
notes Act
ive Dist ance Assist DISTRONIC withActive
St eering Assistassists youinkeeping thevehi-
cle inthe cent erofthe driving lanebymeans
of moderate steeringinter ventions inaspeed
range from0-125 mph (0-200 km/h).
It monitors lanemarkings andvehicle sin front
of you rvehicle bymeans ofcamera system0043
at the top ofthe windshi eld. 164
Drivi
ngsystemsDrivi ngand parking