lights MERCEDES-BENZ METRIS 2021 MY21 Operator's Manual

#
Press and hold button 1until youh ear a
clic kfollo wedbyt he mir rora udibly engaging
in position.
The mir rorh ousing willn owbe engaged and
yo uw ill be able toadjus tthe outside mir rors
as normal.
Heatin gthe outside mir rors
Ve hicles without arear windo wheater: at
te mp eratures belo w59°F (15°C), them irror
heater will automaticall yswitc honp ermanently
once thee ngine has been star ted.
Ve hicles with arear windo wheater: attemp er‐
atures belo w59°F (15°C), them irro rh eater will
automatically switc honfortenm inuteso nce the
engine has been star ted. The mir rorh eater can
also be switched on toget her wit hthe rear win‐
do wh eater. #
Swit chon thei gnition. #
Press the006C button on thec ont rolp anel
fo rt he air conditioning.
The indicator lam ponthe006C button lights
up and them irro rh eater switches on toget her
wit hthe rear wind owheater. Dimming
thei nsid erearvie wmirror #
Fold anti-glar elever 1inthed irection of the
ar row. Operating sun visors #
Glar efromf ront: fold sun visor 1down‐
wa rds. #
Glar efromt he side: swivels un visor 1to
th es ide. Light and vision
89

cally be
kept cons tant. The sy stem automatically
re gulates thet emperatur eofthe dispensed air,
th ea irflow and thea ir distribution.
Au tomatic mode fora utomatic clima tecontrol
settings can be acti vatedord eactivated onl yon
th ef irst menu le vel. If youdon otsetan ew va lue
fo rt he rear-compartment climat econtrol in the
second menu le velw ithin appr oximately tens ec‐
onds ,the contro lpanel displa ywill go bac ktothe
fi rs tm enu le vel. #
Setthe desired temp eratur e(/pag e93). #
Toswitc hautomatic mode on/off: press
the 0058 button.
When thei ndicator lam ponthe0058 button
lights up, automatic mode is switched on. Air‐
fl ow and air distribution ar eregulated auto‐
matically .The "defros twindshield" function is
switched off.
If yo ud eactivat eautomatic mode, thea utomatic
climat econt rolw ill sa vethec urrent settings.
In au tomatic mode, if youa djus tthe air flow or air
distribution manually ,the indicator lam pabove
the 0058 button will go out. The function that has
no tb een changed manuall y,ho we ver,will con‐
tinue tobe regulated automatically. Information on
thea ir distribution settings In all air distributio
nsettings ,the side windo ws
ar es upplie dwitha ir via thes ide air vents topre‐
ve nt them from fogging up.
Heating or dual-zone automatic climat econt rol
0061 Directs ai
rtothe defros terv ents
009C Direct
sairto thec enter and side air vents
009B Directs ai
rtothefoot we llve nts
3-zone au tomatic clima tecontrol
0061 Directs ai
rtothe defros terv ents
0087 Direct
sairto thed efros ter,center and
sid ea irve nts
008F Directs ai
rtothe defros ter,center ,side
and foot we llve nts
0086 Directs ai
rtothe defros tera nd foot we ll
ve nts
009C Directs ai
rtothe center and side air vents
009F Directs ai
rtothe center ,side and foot we ll
ve nts
009B Directs ai
rtothefoot we llve nts Settin
gthe air distribution Re
quirements:
R The climat econtrol sy stem is switched on.
Heating or dual-zone automatic climat econ‐
trol #
Press the009C ,009B and/or 0061button.
If th ei ndicator lam pinabutton lights up, the
air is directed tothec orresponding air vents.
3-zone automati cclimat econtrol #
Press the0054 0063or0054 0064button to
se tthe air distribution.
The contro lpanel displa yshows th ecorre‐
sponding air distribution symbol. Setting
thea irflow Re
quirements:
R The climat econtrol sy stem is switched on.
Heating or dual-zone automatic climat econ‐
trol #
Toincrease or decrease: turnthe air flow
control clockwise or counter-clockwise tothe
desired le vel(/ pag e90).
Ve hicles wit hrear climat econtrol: thes etlevel
will also be adop tedf or ther ear compartment.
3-zone automatic clima tecontrol #
Toincrease or decrease: pressthe0097 or
0095 button.
The cont rolp anel displa ywill sho wthe air flow
control setting as abargraph.
Ve hicles wit hrear climat econtrol: press the004E
button tosetthe air flow fort he rear compart‐
ment. When thei ndicator lam ponthe button
fl ashes ,you can se tthe air flow. Setting
thet em peratu re Re
quirements
R The climat econtrol sy stem is switched on.
Heating or dual-zone automatic climat econ‐
trol #
Toincrease or decrease: turnthe temp era‐
tur ec ont rolc oun ter-clockwise or clockwise
(/ page 90).
3-zone automatic climat econtrol
Yo uc an se tthe temp eratur eseparately fort he
driver's and front passenger sides. In vehicles Climat
econtrol 93

wit
hrear climat econtrol, thet emperatur efor the
re ar compartment can also be set. Eac hsettem‐
peratur eisautomatically maintained at acon‐
st ant le vel. #
Toincrease or decrease: turnthe cor re‐
sponding temp eratur econt rolc oun ter-clock‐
wise or clockwise (/ page 91).
The control panel displa yshows thes ettem‐
peratur efor thel eftorr ight side at the
re spectiv eedgeoft he displa y.
Ve hicles wit hrear climat econtrol: press the004E
button tosetthe temp eratur efor ther ear com‐
partment .When thei ndicator lam ponthe button
fl ashes ,you can se tthe temp erature. Switching
thes ynchronization function
on/off Requ
irements:
R The climat econtrol sy stem has been
switched on (/ page91).
3-zone automa ticc limat econtrol
The temp eratur ecan be se tcent rallyu sing the
synchronization function. The temp eratur eset‐
ting fort he driver's side will then be adop tedf or
th ef ront passenger side and, in vehicles wit hrear
climat econtrol, ther ear compartment as well. #
Press the0 button.
When thei ndicator lam ponthe0 button
lights up, thef unction is switched on. The dis‐
pla yw illthen sho wthe temp eratur eseton
th ed rive r's side fort he front passenger side.
The synchronization function will switc hoffifthe
te mp eratur esetting fort he front passenger side
or fort he rear compartment is altered. The indi‐
cator lam ponthe0 button will go out. Defrosting
thew indshield Heating or dual-zone automatic clima
tecon‐
trol
Yo uc an use thef ollowing settings todefros tthe
windshield and remo vecondensation from the
windshield and thef ront side windo wsfrom the
inside .Selec tthe following settings onl yfor as
long as it take sf or thew indshield tobe clear. #
Switc honc limatecontrol (/ page91). #
If necessar y,switc hont herear wind ow
heater (/ page95). #
Ifth ew indo wsaref ogged up: switc hoffair-
re circulation mode (/ page 94). #
Turn thet emperatur econt rola nd air flow con‐
trol tothe 0085 position (/ page90). #
Select the0061 position fora ir distribution
(/ page93).
Onl ythe indicator lam ponthe0061 button
will light up. #
Vehicles wit hheating: close thec enter air
ve nt (/ page 95). #
Vehicles wit hair conditioning: switc honthe
"Cooling wit hair dehumidification "function
(/ page92).
3-zone au tomatic climat econtrol
Yo uc an use thef ollowing settings todefros tthe
windshield and remo vecondensation from the
windshield and thef ront side windo wsfrom the
inside .Selec tthe following settings onl yfor as
long as it takesfort he windshield tobe clear. #
Switc honc limatecontrol (/ page91). #
If necessar y,switc hont herear wind ow
heater (/ page95). #
Press the0064 button.
The temp erature, air flow and air distribution
will be regulated automaticall y.Air-reci rcula‐
tio nm odew ill be deactivated.
When youe nable automatic mode, the" Defrost
windshield" function will switc hoffautomaticall y.
When yous wit ch offt he "Defros twindshield"
function, thep reviou ssettings fora utomatic cli‐
mat econtrol willbea ppliedagain.
No tethef ollowing exceptions:
R Air-recirculation mode will remain switched
off.
R Ifth eA /C function has been automatically
activated, it will remain active. Switching air-recirc
ulation mode on/off Dual-zone or 3-zone automatic climat
econ‐
trol
When air-recirculation mode is switched on, the
windo wsmayfog up mor equickl y.Switc hona ir-
re circulation mode only brief ly. #
Press the0073 button.
When thei ndicator lam ponthe0073 button
lights up, air-recirculation mode is switched
on. 94
Climat econtrol

Air-reci
rculation mod ewill automaticall yswit ch
on in thef ollowing cases:
R Athigh outside temp eratures
R While thev ehicle is driving thro ugh atunnel
(vehicles wit h3-zon eautomatic climat econ‐
trol and navigatio nonly)
Af tera pproxima tely 30 minutes, outside air will
auto matical lybe introduced again.
Air-recirculation mode will automaticall yswitch
of fint hefollowing cases:
R Aftera pproxima tely five minutes at outside
te mp eratures belo wapproximately 44°F
(7°C)
R Aftera pproxima tely five minutes when the
"Coolin gwitha ir dehumidification "function is
deactivated
R Aftera pproxima tely 30 minutes at outside
te mp eratures abo veappr oximatel y44°F
(7°C) and when the" Cooling wit hair dehu‐
midification "function is switched on Con
venience opening/closing &
WARNING Risk of becoming trapped dur‐
ing con venience opening
During con venience opening ,bod yp arts
could be dr awninorb ecome trapped
between thes ide windo wandthed oor frame. #
When opening, mak esuret hat nobody
to uches thes ide windo w. #
Release the0036 button immediatel yto
inter rupt theo pening procedur eif
somebody becomes trapped. #
Pre-entr yclimat econtrol and con veni‐
ence opening with thek ey: press and hold
the 0036 button on thek ey.
The side windo wsopen automatically and the
blo weroft he climat econt rols ystemisa ctiva‐
te d.
% At
higher interior temp eratures, theb lowe ris
also activated when adoor is opened .This
means that cooled air enter sthe vehicle inte‐
ri or sooner tocool thev ehicle mor erapidly. Switching
ther ear windo wheater on/off The
rear wind owheater consumes alot of elec‐
tricity .You should therefor eswitc hoffther ear windo
wheater as soon as ther ear windo wis
clear. #
Swit chon thei gnition. #
Press the006C button on thec ont rolp anel.
If th ei ndicator lam ponthe006C button
lights up, ther ear windo wheater is switched
on.
The rear wind owheater switches of fautomati‐
cally af teraf ewminutes. Switching
ther esidual heat utiliz ation on/off Onl
yvehicles wit h3-zone automatic climat econ‐
trol ha vether esidual heat function.
When thee ngine is switched off, it is possible to
mak euse of ther esidual heat of thee ngine to
heat or ventilat ethe vehicle interior fora pprox‐
ima tely 30 minutes. The heating or ventilation
time depends on thes etvehicle interior temp era‐
ture. #
Switc hoffthee ngine or remo vethek ey. #
Toswitc hon:press the004B button.
When residualh eat utilization is switched on,
th ei ndicator lam ponthe004B button will
light up.
The blo werw illr un at alow speed rega rdless
of thea irflow setting.
If th e" Residual heat" function is switched on
at high outside temp eratures, onl ythe sta‐
tionar yventilation will be switched on. The
blo werw illt hen runatm ediumspeed. #
Toswitc hoff:press the004B button again.
The indicator lam ponthe004B button will go
out.
Re sidualh eat utilization will switc hoffautomati‐
cally in thef ollowing cases:
R Afterar unnin gtime of appr oximately
30 minutes
R Ifth es tarter battery's conditio nofchargeis
to ol ow
R When thei gnition is switched on Operating air
vents Ad
justin gthe air vents &
WARNING Risk of bu rnsa nd frostbite
due tobeing tooc lose tothea irve nts
Ve ry hotorv eryc old ai rcan flow from thea ir
ve nts. Clima
tecontrol 95

Ne
wb rake discs and brakepads
Ne wb rakepads and brak ediscso nly reac ht heir
optimal braking ef fect af teraf ewhundred miles
(a fewh undred kilome 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. Whe
ndriving 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
Note sonh ydroplaning
Hydroplanin gcan occur on ther oad sur face
ab ove acertain wate rleve l. Obser
vethef ollowing no tesint heevent of heavy
ra infall or condition sinwhichh ydroplaning may
occu r:
R Reduce your speed
R Avoid tir eruts
R Avoid sudden steering mo vements
R Brak ecarefully
Note sonc rossing watero nthe roads
Wa tere ntering thev ehicle can damag ethe drive
sy stem, thee lectrical sy stem and thet ransmis‐
sion.
If yo uh ave todriv ethrough water,obser vethe
fo llowing no tes:
R The wate rleve lofs tandin gwater ma ynotbe
abo vethel owe redgeoft he front bumper.
R Youm aydriv enof astert han walkin gpace.
R Vehicles driving in front or approaching from
th eo pposit edirection can creat ewaves,
whic hcan cause them aximum permissible
wate rleve ltobee xceeded.
Af terp assing thro ugh wate r,th eb rake sh avea
re duced braking ef fect. Brak ethe vehicle care‐
fully ,taking in toaccount thet raffic situation,
unti lthe full braking ef fect is restored.
Information about driving in winter
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
maneuvers.
Ha ve your vehicle winterized at aqualified spe‐
cialis tworks hop in good time at theo nse tofw in‐
te r.
Obser vethen otes on sno wchains
(/ page205).
Re gular lych eckt he vehicle and remo vesno wor
ice when tr aveling in wintr yconditions. Driving and parking
101

Manual parking brake
Applying or
releasing thep arking 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. &
WARNING Risk offire and an acciden tif
th ep arking brak eisnotreleased
If th ep arking brak eisnotfull yreleased when
driving, thef ollowing situations can occur:
R The parking brak ecan overheat and cause
af ire
R The parking brak ecan lose its holding
function #
Comple tely release thep arking brake
befor edriving off. The brak
elights do no tlight up when youb rake
th ev ehicle wit hthe parking brake. #
Toappl ythe parking brake: depress parking
brak epedal 2firm ly.
The red0049 (onlyUSA)or0024(only Can‐
ada) indicator lam pinthe instrument clus ter
light supift he engine is running .Ifthevehicle
is in motion, awarning tone sounds. #
Torelease thep arking brake: depressthe
brak epedal and keep it depressed. #
Pull release handle 1.
The parkin gbrake isreleased abruptl y.The
red 0049 (onlyUSA)or0024(onl yCanada)
indicator lam pinthe instrument clus terg oes
out.
Pe rforming emer gency braking with thep ark‐
in gb rake If, in
exceptional cases, thes ervice brak efails,
yo uc an use thep arking brak etoperform emer‐
ge ncy braking. #
Pull release handle 1and slowl ydepress
parkin gbrake pedal 2. Pa
rking thev ehicle forane xtended period Pa
rking thev ehicle forl on gerthan four
we eks #
Connect thes tarter batter ytoatrick le
ch arge rv iaaj ump-s tart connection
(/ page 191).
or #
Disconnect all batteries (/ page194).
Pa rking thev ehicle forl on gerthan si xweeks #
Contact aqualified specialis tworks hop and
seek advice.
The vehicle can otherwise suf ferd ama geas a
re sult of lac kofuse. Driving and driving saf
etys ystems Note
sond riving sy stems and your responsi‐
bility 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 eonly
aids. These cann otreplace your attention tothe
sur rounding sand do no trelease youf romy our
re sponsibility under road traf ficl aw .The driver is
re sponsible fort he dis tance tothev ehicle in
front, forv ehicle speed, braking in good time and
fo rs tayi ng in lane. Alw aysp ayattention tothe Driving and pa
rking 109

The dis
tance warning function warnsy ou in the
fo llowing situations:
R From aspeed of appr oximatel y4mph
(7 km/h), if your vehicle is critically close to a
ve hicle or pedestrian. An intermittent warning
to ne sounds and theL warning lam pin
th ei nstrument clus tert hen lights up.
Brak eimmediatel yortakee vasiv ea ction ,provi‐
ded it is saf etodosoa ndthet raffic situation
allo wsthis.
The dis tance warning function can aid youint he
fo llowing situations wit hanintermit tent wa rning
to ne and awarning lamp:
R Vehicles tr aveling in front: uptoappr ox‐
imatel y155 mph(250 km/h)
R Stationar yvehicles: uptoappr oximately
50 mph(80 km/h)
R Cros sing vehicles: noreaction
R Moving pedestrians/cyclists ahead: upto
appr oximately 50 mph(80 km/h)
R Crossing cyclists: uptoappr oximately
37 mph(60 km/h)
R Stationar ypedestrians: noreaction
Au tonomous braking function
The autonomous braking function ma yinter vene
at speed sstartin gf roma pproximately 4mph
(7 km/h) in thef ollowing situations:
R Vehicles tr aveling in front: uptoappr ox‐
imately 125m ph (200 km/h)
R Stationar yvehicles: uptoappr oximately
31 mp h(50 km/h)
R Cros sing vehicles: noreaction
R Cyclists ahead: uptoappr oximately 50 mph
(80 km/h)
R Moving pedestrians/crossing cyclists: up
to appr oximatel y37m ph (60 km/h)
R Stationar ypedestrians: noreaction
Situation-dependent brak eforce boosting
Situation-dependent brak eforce boosting may
inter vene at speed sstartin gf roma pproximately
4m ph (7 km/h) in thef ollowing situations:
R Vehicles tr aveling in front: uptoappr ox‐
imatel y155 mph(250 km/h)
R Stationar yvehicles: uptoappr oximately
50 mph(80 km/h)
R Cros sing vehicles: noreaction R
Cyclists ahead: uptoappr oximatel y50m ph
(80 km/h)
R Moving pedestrians/crossing cyclists: up
to appr oximately 37mph(60 km/h)
R Stationar ypedestrians: noreaction
Canceling abrake application of Activ eB rake
Assi st
Yo uc an cancel abrak eapplicatio nofActive
Brak eAssistat an ytimeb y:
R Fully depressin gthe accelerator pedal or with
kickdown.
R Releasing theb rake pedal.
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 limits
Fu ll sy stem per form anc eisn otavailable foraf ew
seconds af ters witching on thei gnition or af ter
driving off.
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing situations:
R In sno w,rain, fogorh eavy spr ay.
R Ifth es ensor saredirty ,fogged up, damaged
or co vered.
R Ifth es ensor sareimpaired due tointer fer‐
ence from other radar sources, e.g. strong
ra dar reflection sinparking garage s.
R Ifal oss of tir epressur eoraf aulty tir ehas
been de tected and displa yed.
R In comple xtraffic situation swhere objects
canno talway sbec learly identified.
R If pedestrians or vehicles mo vequickl yinto
th es ensor de tection range.
R If pede strians ar ehidde nbyo ther objects.
R Ifth et ypical outline of apedestrian cann otbe
distinguished from theb ackg round.
R Ifap edestrian is no tdetected as such, e.g.
due tospecial clo thing or other objects.
R In cur vesw ithan arrow radius.
Fo llowing damag etothe front end of thev ehicle,
ha ve thec onfiguration and operation of ther adar
sensor checkedataq ualified specialis twork‐ 11 4
Driving and pa rking

#
Brief lypush thec ruise cont rolleve rfor wa rds
7 .
or #
Brak eifthevehicle is moving.
or #
Press button 6.
The variable limiter is selec ted. LIM indicator
lamp 3inthec ruise cont rollev er lights up.
Increasin gorreducing th espeed #
Press thec ruise cont rolleve rup1or down
5 asfarast he 1s tpressur epoint.
The stored speed is increased or reduced by
1m ph (1 km/h).
or #
Press thec ruise cont rolleve rup1or down
5 beyond the1 stpressur epoint.
The stored speed is increased or reduced by
5m ph (1 0km/h).
Increasing or reducing the specifie ddistance
from the vehicl einf ront #
Turn controller 3in direction 2toinc rease
th es pecified minimum dis tance and in di rec‐
tion 1toreduce thes pecified minimum dis‐
ta nce.
As in thea ssis tance graphi cmenu ,the multi‐
function displa ybrief ly sho ws th esetspeci‐
fi ed dis tance.
% Yo
uc an find information on DISTRONIC dis‐
pl ay su nder "Activ eDista nce Assi st
DISTRONIC" (/ page 120). Displa
ysofActiv eD ista nce Assis tDISTRONIC
Assi stant display 1
Vehicle in front, if de tected
2 Distance indica tor
3 Setspecifie ddista nce
Yo uc an find information on thea ssis tance
graphi cmenu under "Assis tance graphic"
(/ page 144).
% If
yo us etthes peed, theA ssis tance graphic
brie flya ppear sinthe multifunction displa y.
Displa yson thes peedome ter
Ve hicles wit hsteering-wheel buttons:
When ActiveD ista nce Assi stDISTRONI Cisacti‐
va ted, one or tw oindicator segments light up in
th es tore ds peed rang eoft he speedome ter.
If Ac tiveD ista nce Assi stDISTRONI Cdetects a
ve hicle in front, thei ndicator segments, located
between thes peed of thev ehicle in front and the
st ored speed, light up. Information on Hill
StartA ssist Hill
StartA ssisth olds thev ehicle foras horttime
when pulling away on ahill under thef ollowing
conditions:
R Vehicles with automatic transmission: the
transmission is in position 005Bor005E.
R The pa rking brak ehas been released.
This gives youe nough tim etomoveyour foot
from theb rake pedal tothea ccelerator pedal and
depress it befor ethe vehicle begins toroll. &
WARNING Risk of accident and injury
du etot hevehicle rolling away
Af teras horttime, Hill StartA ssistnol onger
holds thev ehicle. #
Swiftl ymove your foot from theb rake
pedal tothea ccelera torp edal. Do not 12 0
Driving and pa rking

Re
ar area warning displa yintherear compart‐
men tatt he center of theh eadliner
1 Warning segment sfor thel efts ide of the
ve hicle
2 Measurement operational readiness indicator
3 Warning segment sfor ther ight side of the
ve hicle
At leas tone segment will light up as thev ehicle
approaches an obs tacle, depending on thev ehi‐
cle's dis tance from theo bstacle.
In addition, warning tones ar eemitted .Whent he
dis tance totheo bstacle is suf ficient, youw ill
hear an intermit tent wa rning tone. The sho rter
th ed ista nce totheo bstacle, thes hor tert he fre‐
qu ency of thei ntermittent warning tones
becomes. Whe nthe minimum dis tance is
re ached, youh ear acontinuous warning tone.
The warning displa yfor eac hside of thev ehicle is
divided int ofivey ello wand tw ored segments.
PA RKTRONI Cisactiveifm easurement opera‐
tional readiness indicator 2light sup.
Sy stem limits
PA RKTRONI Cmaynottak et he following obs ta‐
cles int oaccount:
R Obs tacles bel owthed etection range, e.g.
people, animal sorobjects
R Obs tacles ab ovethed etection range, e.g.
ove rhanging loads, overhangs or loading
ra mp soft rucks
The sensor smustbef reeofd irt, ice and slush.
Otherwise, they ma ynotfunction cor rectly .Clean
th es ensor sregularly ,taking ca renottos cratch
or damag ethem (/ page184). Problem
swithP ARKTRONIC
Ther eisam alfunction if onl ythe reds egments of
th ew arning displa ylight up. In addition ,awarn‐
ing tone sounds fora pproxima tely tw oseconds .If
problems pe rsist, ha vePARKTRONI Cchec kedat
aq ualified specialis tworks hop.
If th ew arning indicator saredisplaying implausi‐
ble dis tances, it ma ybeduetothef ollowing cau‐
ses:
R The sensor saredirty: cleanthes ensors.
Obser vethen otes on car eofvehicle parts
(/ page184).
R Licens
eplateoro ther detachable parts in
th ev icinit yoft he sensor sarenotc or‐
re ctl yfastened: checkt he license plat eor
th ed etachable parts forc orrect ins tallation.
R Inter
fere nce byano ther source of radio or
ultrasound waves:checkt he function of
PA RKTRONI Catanother location.
Deactivating/activating PARKTRONIC #
Press theé button.
If PA RKTRONI Cisdeactivated, thei ndicator
lam poft heé button lights up. Re
ar vie wcamera Fu
nction of ther ear vie wcamera
Fo rv ehicles wit hrear-end doors, ther ear view
camera is in theu pper par tofthe license plate
holder (/ page110).
Fo rv ehicles wit hatailgate, ther ear vie wcamera
is located next tothet ailgat ehandle and is pro‐
te cted from raindrops and dus tbymeans of a
fl ap. When ther ear vie wcamer aisa ctivated, this
fl ap open s(/pag e110). Driving and parking
12 3

concentration in goo
dtime. The sy stem is no ta
substitut efor aw ell-res teda nd attentiv edrive r.
On long journe ys,tak er egular and timel ybreaks
th at allo wyoutorest properly.
If fatigue or increased lapse sinconcentration are
de tected, theATTENTION ASSIST: Take aBreak!
or Attent. Asst Take Break! warning appear sin
th ei nstrument clus ter.
Yo uc an ackn owledg ethe messag eand take a
break if necessar y.Ifyo udon ottake ab reak and
AT TENTION ASSIS Tcontinues todetect increased
lapse sinconcentration, youw ill be warned again
af te ram inimu mof15m inutes. Fo
rv ehicles wit hsteering wheel buttons youc an
ha ve thec urrent ATTENTION ASSIS T(Attention
Le vel) assessment displa yed.
The following informatio nisdisplayed:
R The journe ylengt hsincethe las tbreak
R The attention le veld etermined byATTENTION
ASSIS T:
- The fuller theb ar is, theh igher thed etec‐
te da ttention le velis
- The bar em pties as attentivenes sdecrea‐
ses
If AT TENTION ASSIS Tcann otcalculat ethe atten‐
tion le vela nd canno tissue awarning ,the Sys-
tem Suspended messageappears.
The bar displa yisthen dimmed. This is thec ase,
fo re xamp le, ifyoua repredominantl ydrivin gata
spee dbelow40m ph (60 km/h) or abo ve
12 5m ph (200 km/h).
Sy stem limits
AT TENTION ASSIS Tisactiveint he 40 mph
(60 km/h) to125m ph (200 km/h) speed range. The functionality of
ATTENTION ASSIS Tisrestric‐
te d, and warnings ma ybedelayedorn otoccur at
all, in thef ollowing situations:
R The journe ylasts less than appr oximately
30 minutes
R The road condition is poor (une venr oad sur‐
fa ce or po tholes)
R The vehicle is subjected toas tron gc rosswind
R Youh ave asporty drivin gstyle (hig hcorner‐
ing speeds or high ratesofa cceleration)
R The time is se tincor rectly
R Youc hang elane sand vary your spee dfre‐
qu ently in activ edriving situations
The ATTENTION ASSIS Tdrow sines sora lertness
assessment is dele teda nd restar tedw hen con‐
tinuin gthe journe yinthefollowing situations:
R Yous wit ch offt he engine
R Youu nfas teny our seat belt and open thed riv‐
er's door (e.g. chang edrive rs or tak eabreak)
Deactivating or activating ATTENTION ASSI ST
(vehicles without steering wheel but tons)
On-boar dcomputer:
4 È5
Settings 5
Attention Assist #
Toactivate/deactivate: pressthe0074or0075
button and confir mbypressing the0078but‐
to n.
Whe nATTENTION ASSIS Tisactive, the00AD
indicator lam plights up in thei nstrument
clus ter.
Deactivating or activating ATTENTION ASSI ST
(vehicles wit hsteering wheel but tons)
On-boar dcomputer:
4 DriveAssist 5
ATTENTION ASSIST #
Tochang ethe setting: pressthe0076 but‐
to na nd select thes etting.
If AT TENTION ASSIS Tisactivated, the00AD
symbol is shown in thes tatus area of them ul‐
tifunction displa y.
Yo uc an choose between thef ollowing settings:
R Off
R Standard:n ormal system sensitivity.
R Sensitive:h igher system sensitivity .The driver
is wa rned earlier and thea ttention le vel
de tected bythes ystem( Attention Le vel) is
adap teda ccording ly. 12 8
Driving and pa rking