2020 MERCEDES-BENZ SL CLASS tow

Never
leavechildren unsupervisedinthe
vehicle.
! Alway
ssecure thevehicle correctly against
rolli ngawa y.Otherwise, thevehicle orits
drivetrain couldbedama ged.
To ensure thatthevehicle issecured against
rolli ngawa yunintentionally :
R the electric parking brakemustbeappl ied.
R the transmission mustbeinposition 005D.
R the SmartKey mustberemoved fromthe
ignition lock.
R the front wheel smust beturned towards the
curb onsteep uphillor downhil lgradi ents. Switc
hingoffthe engi ne G
WARNING
The automa tictransmission switchestoneu-
tral position Nwhen youswitch offthe
engine. Thevehicle mayrollawa y.There isa
risk ofan accident.
After switching offthe engine, always switch
to parking position P.Prevent theparked
vehicle fromrollingawa yby appl ying the
parking brake.
X Apply theelectric parking brake.
X Shift thetransmission toposition 005D
(Y page 137).
X With theSmart Key:turn theSmartKey to
position 0092inthe ignition lockandremove
it.
The immobil izerisactivated.
X With KEYLESS -GO:press theKEYLESS -GO
Start/S topbutton (Ypage 126).
The engine stopsandallthe indicator lamps
in the instrument clustergoout.
If the driver's doorisclosed, thisisthe
same asSmartKey position0047.Ifthe driv-
er's door isopen, thisisthe same asSmart-
Key position 0092(Ypage 126).
The engine canbeswitched offwhil ethe vehi-
cle isin motion bypressing andholdi ngthe
Start/S topbutton forabou tthree seconds.
This function operates independently ofthe
ECO start/stop automaticengine switch-off
function. Ele
ctric parking brake
General notes G
WARNING
If children areleft unsupe rvisedinthe vehi-
cle, they could:
R open doors, thereby endangering other
persons orroad users
R get out and bestruck byoncoming traffic
R operate thevehicle's equipment
Additional ly,children couldsetthe vehicle in
motion if,for example ,they:
R relea sethe parking brake
R shift theautoma tictransmission outof
park position 005Dorshift themanual
transmission toneutral
R start theengine
There isarisk ofan accident andinjury.
When leavingthe vehicle, always take the
SmartKey withyouand lock thevehicle. This
also appliesforthe digitalvehicle keyifthe
"Digital Vehicle Key"function isactivated via
Mercedes meconnect .
Alway skeep theSmartKey outofreach of
children. Thisalso appliesforthe Digital
Vehicle Keyifthe "Digital Vehicle Key"func-
tion isactivated viaMercedes meconnect .
The function ofthe electric parking brakeis
dependent onthe on-board voltage.Ifthe on-
board voltage islow orthere isamalfu nction
in the system, itmay notbepossib leto appl y
the relea sedparking brake.
X Ifthis isthe case, onlypark thevehicle on
level ground andsecure itto prevent itroll-
ing awa y.
X Shift theautoma tictransmission toposition
005D.
It may notbepossib leto relea sean appl ied
parking brakeifthe on-board voltageislow or
there isamalfu nction inthe system. Contact a
qua lifiedspecia listworkshop.
The electric parking brakeperforms afunction
test atregul arintervals whilethe engine is
switched off.The sounds thatcanbeheard
whil ethis isoccurring arenormal. 148
ParkingDrivi
ngand parking

Downh
illgrad ient s !
On
long,steep gradie nts, you mus tred uce
th eload onthebra kes.To use engin ebra k-
in g, shi ftto alowe rgear ingoo dtime. This
hel psyou toavo idoverh eating th ebra kes
and wear ing th em out exce ssi vel y.
Whe nmak ing use oftheen gin ebra king
ef fect ,it is pos siblethat adri ve whee lmay
no ttu rn forsom etime, e.g. inthecas eof
sudd enlych ang ing or slip peryro ad sur face
co nd ition s.Thi sco uld causedam agetothe
dri ve train .Thi styp eof dam ageisno tco v-
ere dby theMer cedes -Ben zwarr anty.
Chan geinto alowe rgear ingoo dtime onlong
and steep down hillgradie nts. Thi sis esp ecially
imp ortant ifth eveh icle islade n.
Thi salso appli esifyou haveact ivat edcruise
co ntro lor Active Distanc eAs sis tDI ST RON IC.
Hea vyandligh tloa ds G
WAR
NING
If you restyour foot on thebra kepeda l
whil edri vin g,thebra king sys tem can over-
heat .Thi sin cr ease sth est opp ing dis tanc e
and canevencau sethebra king sys tem to
fail .The reisaris kof an acc iden t.
Nev eruse thebra kepeda las afo ot res t.
Nev erdepr essthebra kepeda land the
acc eler ator peda lat thesam etime.
! De
pre ssing thebra kepeda lco nstant ly
res ultsin exce ssi ve and premat ure wear to
th ebra kepads .
If th ebra keshav ebee nsubj ectedto aheav y
load ,do notst op theveh icle imm ediately, but
dri ve on fora sho rtwhil e.Thi sallow sth eair-
flo wto cool thebra kesmo requic kly.
Wet road s If
you havedri ven fora lon gtime inheav yrain
wit hout braking ,th ere may beadela yedreac-
ti on from thebra keswhen braking forth efir st
ti me. Thismay alsooccur aftertheveh icle has
bee nwash edordriven thro ugh deepwat er.
You then hav eto depr essthebra kepeda l
mo refirmly. Main tain agr eat erdis tanc efrom
th eveh icle in fron t.
Af terdri vin gon awet road orhav ing th eveh i-
cl e wash ed,brakefirmly whilepayin gat te nt ion to
thetraff icco nd ition s.Thi swill warm upthe
bra kediscs,th ere bydryi ngthem morequic kly
and protecting th em again stcorrosi on.
Lim ited brak ing performa nce onsalt-
tr eat edroad s If
you drive on salt edroads, alayer ofsalt resi-
due may form onthebra kediscsand brake
pads .Thi scan result inasig nific ant lylon ger
bra king distanc e.
R In order topre ven tany salt build -up,apply
th ebra kesoc cas ionally whilepayin gat te n-
ti on tothetraff icco nd ition s.
R Care fullydepr essthebra kepeda land the
beg inning and endof ajo urn ey.
R Main tain agr eat erdis tanc eto theveh icle
ahea d.
Ser vici ngthebr ak es !
The
brakeflui dlev elmay betoolow, if:
R ifth ered brakewarn ing lamp lightsup in
th einst rum entcl ust erand
R you hear awarn ing to ne whil eth een gin e
is run ning
Obs erveaddit ionalwarn ing mes sagesinthe
mult ifunction display.
The brakeflui dlev elmay betoolow due to
bra kepad wear orleak ing bra kelines.
Hav eth ebra kesys tem checke dimm edi-
at ely. Consult aqualif iedspecialis twor k-
sho pto arr ang eth is.
! As
theES P®
sys tem ope rates aut omati-
cal ly,theen gin eand theign ition mus tbe
swit ched off(t he Sm artKey mustbe inpos i-
ti on 0092 or0047 intheign ition lockor the
St art /S topbut tonmus tbe inpos ition 0092or
0047), if:
R thepar king bra keistested usin gabra ke
dyn amo meter.
R theveh icle istowed withth efron taxl e
rais ed.
Br ak ing trigg ere daut omatically byESP®
may causesev ere dam agetothebra kesys -
te m.
Al lch ecks and main tenan cewor kon thebra ke
sys tem mus tbe car riedout ataqualif iedspe-
ci alis twor kshop .
Hav ebra kepads inst alled andbrakeflui d
rep laced ataqualif iedspecialis twor kshop . Dri
ving tips
153Driving andpa rki 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

adapt
yourdrivingstyle, norove rride thelaws
of physic s.Ac tiveDis tan ceAssist DISTRO NIC
can nottak eint oacc oun troad, weatherortraf-
fic con dition s.Ac tiveDis tan ceAssist
DI STRO NICison lyan aid. You arerespon sible
for thedist anceto theveh icle infron t,for
veh icle spee d,for brak ingingood timeand for
st aying inyour lane.
Do notuse ActiveDis tan ceAssist DISTRO NIC:
R In road andtraff iccon dition swhic hdo not
allow youtomain tainacon stant spee d,e.g .
in heav ytraff icor on wind ingroads
R on slippe ryroad surfaces .Br akin gor acc el-
erat ingcoul dcaus eth edriv ewheels tolose
tr act ion and theveh icle coul dth en skid
R In poor visibilit y,e.g .due tofog ,heav yrain
or snow
Ac tiveDis tan ceAssist DISTRO NICmay not
det ect narrow vehiclesdriv inginfron t,e.g .
mot orcycles ,or veh iclesdriv inginast agger ed
for mat ion.
In part icular ,th edet ection ofobst aclescan be
impair edif:
R Ther eis dirt onthesen sorsor anyt hingelse
cov erin gth esen sors
R Ther eis sn ow orheav yrain
R Ther eis int erf eren cebyother radar sources
R Ther eare stron gradar reflec tions,for exam -
ple inpark inggarag es
If Ac tiveDis tan ceAssist DISTRO NICnolonger
det ectsa veh icle infron t,Dis tan cePilot
DI STRO NICmay unexpectedly acceler ate to
th espee dstore d.
This spee dmay:
R Be toohigh ifyou aredrivinginatur nin g
lane oran exitlane
R Be sohigh when drivingintherigh t-han d
lane that you overtake vehiclesin theleft -
han dlane
R Be sohigh intheleft lane that you pass
veh iclesdriv ingontherigh t
If th ere isach ang eof driv ers,advis eth enew
driv erofthespee dstore d. Cru
isecontr ollever Cruise
control leve r
0043 Tostore thecur ren tspee dor ahigh er
spee d
0044 Toset aspec ified minimum distance
0087 Tostore thecur ren tspee dor call upthe
last store dspee d
0085 Tostore thecur ren tspee dor alower
spee d
0083 Todeac tivate ActiveDis tan ceAssist
DI STRO NIC
Activ ating Activ eDist ance Assist
DISTR ONICand storin g,ma intaini ng
and callin gup aspeed Imp
ortant safety notes
! When
ActiveDis tan ceAssist DISTRO NIC
or theHOL Dfun ction isact ivat ed, theveh i-
cle brak esauto matically incer tain situa-
tio ns.
To avoid damage totheveh icle,deac tivate
Ac tiveDis tan ceAssist DISTRO NICandthe
HOL Dfun ction inthefoll owin gor simi larsit-
uatio ns:
R when towing theveh icle
R in thecar wash
To act ivat eAc tiveDis tan ceAssist DISTRO NIC,
th efoll owin gcon dition smust befulf illed:
R theeng inemust bestart ed. Itmay takeup
to two minutesof driv ingbefo reActiveDis -
tan ceAssist DISTRO NICisready foruse.
R theelec tric park ingbrak emust berele ased.
R ES P®
must beact ive, butnotint erv ening.
R Ac tivePark ingAssist must notbe act ivat ed.
R thetrans miss ionmust beinposit ion005B. Driv
ingsyst ems
159Drivingand parking Z

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

Make
surethatyoumaintain asufficiently safe
distance fromthevehicle infront .Adjust the
distance tothe vehicle infront ifnecessary. Cruise
controllever
X To increase: turncontrol0087 toward 0044.
Act ive Distanc eAssist DISTRONIC then
maintains agreater distance between your
vehicle andthevehicle infront .
X To decrease: turncontrol0087 toward 0043.
Act ive Distanc eAssist DISTRONIC then
maintains ashorter distance between your
vehicle andthevehicle infront .
Active Distance AssistDISTRONIC dis-
plays inthe instrum entcluster Displays
inthe speedometer When
Active Distanc eAssist DISTRONIC is
activated, oneormore segments 0044inthe set
speed rangelightup.
If Act ive Distanc eAssist DISTRONIC detectsa
vehicle infront ,segments 0044from speed of
the vehicle infront 0087tostored speed0043light
up.
i For
design reasons, thespeed display ed
on the speedometer maydiffer slightly from the
speed setforActive Distanc eAssist
DISTRONIC.
Display whenActive Distance Assist
DISTRONIC isdeactivated 0043
Vehicle infront ,if detected
0044 Distanc eindicator, currentdistance tothe
vehicle infront
0087 Specified minimum distancetothe vehicle
in front ;adjustable
0085 Your vehicle
X Select theAssistance Graphic Assistance
Graphicfunction
using theon-board computer (Ypage 200).
Display whenActive Distance Assist
DISTRONIC isactivated 0043
Vehicle infront ,if detected
0044 Specified minimum distancetothe vehicle
in front ;adjustable
0087 Your vehicle
0085 Active Distanc eAssist DISTRONIC
X Select theAssistance Graphic Assistance
Graphicfunction
using theon-board computer (Ypage 200).
You willinitially seethestored speedfor
approximately fiveseconds whenyouactivate
Act ive Distanc eAssist DISTRONIC. 162
Driving
systemsDriving andparking

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

In
aspeed rangefrom0-37 mph
(0 -60 km/h ),Active Steering Assistfocuses
on the vehicle infront, taking intoaccount
lane markings, e.g.when followingvehicle sin
a traffic jam.
At speed sof more than37mph (60km/h),
Active Steering Assistfocuses onclear lane
markings (leftandright), onlyfocusing onthe
vehicle infront ifdetected lanemarkings are
not present atspeed sof up to80 mph
(130 km/h).
If these conditions arenot present, Active
Steering Assistcannot provide assistance.
Active Distance AssistDISTRONIC mustbe
active inorder forthe function tobe avai lable.
Important safetynotes
Active Distance AssistDISTRONIC withActive
Steering Assistcanneither reducetherisk of
an accident ifyou failtoada ptyou rdriving
style, noroverride thelawsof phys ics.Itcan-
not take intoaccount road,weather ortraffic
conditions. ActiveDistance AssistDISTRONIC
with Active Steering Assistisonly anaid.You
are responsib lefor the distance tothe vehicle
in front, forvehicle speed,for braking ingood
time andforstayi nginyou rlane.
Active Distance AssistDISTRONIC withActive
Steering Assistdoesnotdetect roadandtraf-
fic conditions anddoes notdetect allroad
users. Ifyou arefollow ingavehicle whichis
driving towards theedge ofthe road, your
vehicle couldcome intocontact withthecurb
or other roadbounda ries.Beparticul arly
awa reofother roadusers, e.g.cyclists, that
are directly nexttoyou rvehicle .
Obstacles suchasreflector postsinthe lane
or projecting outinto thelane arenot detec-
ted.
An inapp ropria testeering intervention, e.g.
after youhave intentionally drivenoveralane
marking, canbecorrected atany time ifyou
steer slightlyinthe opposi tedirection.
Active Distance AssistDISTRONIC withActive
Steering Assistcannot continuously keepyour
vehicle inlane. Insome cases, thesteering
intervention isnot sufficie ntto bring thevehi-
cle back tothe lane. Insuch cases, youmust
steer thevehicle yourself toensure thatit
does notleavethe lane. The
supp ortprovide dby the system canbe
impa iredif:
R there ispoor visibility, e.g. due toinsuffi-
cient illuminatio nof the road, ordue to
snow, rain,fogorheavy spray
R there isglare ,e.g. from oncoming traffic,
the sun orreflection fromother vehicle s
(e.g. ifthe road surface iswet)
R the windshi eldisdirty, fogged up,dama ged
or covered, forinstance byasticker, inthe
vicinity ofthe camera
R there arenolane markings, orseveral
unclea rlane markings arepresent, e.g.
arou ndconstruction sites
R the lane markings areworn away,dark or
covered up,e.g. bydirt orsnow
R the distance tothe vehicle infront istoo
short andthus thelane markings cannotbe
detected
R the lane markings changequickly, e.g.lanes
branch off,cross oneanother ormerge
R the road isnarrow andwindi ng
R there arehighl yvaria bleshade conditions
on the roadw ay
The system isswitched topassi veand nolon-
ger assi stsyou byperforming steeringinter-
ventions if:
R you actively changelane
R you switch onthe turn signal
R you take yourhands offthe steering wheel
or do not steer foraprolonge dperiod of
time
i Once
youhave finished changing lanes,
Active Steering Assistautoma ticallyreacti-
vates.
Active Steering Assistcannot provide assis-
tance:
R on very sharp corners
R when aloss oftire pressu reor adefective
tire has been detected anddispl ayed
Observe theimportant safetynotesonActive
Distance AssistDISTRONIC (Ypage 158).
The steering interventions arecarried outwith
a limi ted steering moment. Thesystem
requi resthe driver tokeep hishands onthe
steering wheelandtosteer himsel f.
If you donot steer yourself orifyou take your
hands offthe steering wheelforaprolonge d
period oftime, thesystem willfirst alertyou
with avisua lwarning. Asteering wheelsymbo l Drivi
ngsystems
165Drivingand parking Z