2021 MERCEDES-BENZ METRIS sensor

Exterior lighting
Information abou
tlighting sy stems and your
re sponsibility The
vehicle's various lighting sy stems ar eonly
aids. The vehicle driver is responsible fora djust‐
ing thev ehicle's lighting tothep reva ilin glight,
visibilit y,statutor ycondition sand traf ficc ondi‐
tions. Light switch
Operating the light switch
0047
0063 Leftstanding lamps
0048 0064 Rightstanding lamps
0049 0060 Parking lamps and license plat eand
instrument lighting
004A 003F Lightsoffand daytime running la mps
0058 With light sensor :automatic driving
light s(prefer redl ight switc hposition)
004B 0058 Lowb eam or high beam 6
005A Front fogl ights
7 005E Rear fogl ight
If yo uh ear awarning tone when exitin gthe vehi‐
cle, thel ights ma ystillbeo n. #
Turn thel ight switc hto003For 0058.
The exterior lighting (e xcep ts tandin gand parking
lamps) will automaticall yswit ch offint hefollow‐
ing cases:
R Ifyo ur emo vethek eyfrom thei gnition loc k.
R Ifyo uo pen thed rive r's door while thek eyis
in position 005Ainthei gnition loc k.
Switching on the daytime running lamps #
Turn thel ight switc hto003For 0058.
Au tomatic drivin glights function
The pa rking lamps, lo wbeam and daytime run‐
ning lights will be switched on au tomatically
depending on thei gnition status and thea mbient
light. &
WARNING Risk of accident whe nthe low
beam is switched of finpoor visibility
When thel ight switc hissetto 0058 ,the low
beam ma ynotbe switched on automaticall yif
th er eisf og, sno worother causes of poor vis‐
ibility suc hasspray. #
In suc hcases, tur nthe light switc hto
0058 . The automatic driving lights ar
eonlyana id.
Re sponsibility forv ehicle lighting restsw ithy ou.
If th ep arking lamps and lo wbeam ha vebeen
switched on, theg reen 0060 (parking lamps) and
0058 (lowb eam) indicator lamps on thei nstru‐
ment clus terw illl igh tup.
Ac tivating/deactivatin gthe fogl ight
Re quirements:
R The light switc hisinthe0058 or0058 posi‐
tion.
R The po wersupply has been switched on.
R Toswitc hont hefogl ight: thev ehicle is
equipped wit hfront fogl amps. #
Toswitc hthe fogl ight on or off: pressthe
005A button. #
Toswitc hthe rear fogl am ponoro ff:
press the005E button.
Compl ywitht he countr y-specific regulations for
usin gthe rear fogl amp. Light and vision
77

Ad
aptiv eHighbeam Assis tisonlyana id.Youa re
re sponsible fore nsuring cor rect vehicle lighting
in accordance wit hthe pr evailing light ,visibility
and traf ficc onditions.
The sy stem's optical sensor is located behind the
windshield near theo verhead cont rolp anel.
Switching Highbea mAssis ton/off
Re quirements
R The light switc hisinthe0058 position. #
Toswitc hon:switc honh igh beam using the
combinatio nswitch.
If hig hbeamisa utomatical lyswitched on in
darkness, the00CE indicator lam ponthe
multifunction displa ywilll igh tup. #
Toswitc hoff:switc hoffhigh beam using the
combinatio nswitch. Ad
justin gthe in terior lighting Ad
justin gthe in terior lighting Fr
ont overhead control panel In
te rior lighting buttons (e xample: com fort ove r‐
head control panel)
1003D Front lef treading lamp
20033 Automatic interior lighting control
3004A Front interior lighting
40044 Rear compartment or cargo compart‐
men tlamp
5003D Front right readin glamp #
Toswitc hon/off: pressthec orresponding
button 1–5.
The la yout and number of button sdepen dont he
equipment. Operating unit in
theg rabh andle 1003D
Rear compartment reading lamp #
Toswitc hon/off: press button 1.
Operating unit in thec argo compa rtment 1004A
Cargo compa rtment lamp #
Toswitc hon/off: press button 1.
If yo ur vehicle is equipped wit hacargo compart‐
ment lam pwithab utton, youc an swit chall cargo
compartment lamps on and of fbypressing the
004A button on this cargo compartment lamp.
Re gardless of thes witc hposition ,you can switch
th ec argo compartmen tlam pona nd offcent rally
by pressing the0044 button on theo verhead
cont rolp anel. Changin
gbulbs Note
sfor replacing light bulbs &
WARNING Risk of bu rnsf romh otcom‐
ponent parts whils treplacing abulb
Bulbs, lamps and plug connector scan
become very hotd uring operation. 80
Light and vision

#
Push in thec atc hspring of lam phousing 1
wit has uitable object ,e.g. ascrew driver ,and
pr yo fflam phousing 1. #
Turn soc ket 2counter-clo ckwise and pull it
out of lam phousing 1. #
Pull bulb 3out of soc ket2. #
Push ne wbulb 3intos ocket 2. #
Screw soc ket 2intot he lam phousing 1by
turning it clo ckwise. #
Place lam phousing 1in position on thel eft
and engag eit.
Signal and ambient lam pinthe tailgate #
Pushint he catc hspring of thel am ph ousing
on thes ide of transparent lens 2withas uit‐
able object ,e.g. ascrew driver ,and pr yoffthe
lam phousing. #
Turn soc ket 3counter-clo ckwise and pull it
out of thel am ph ousing. #
Pull theb ulb out of soc ket3. #
Push then ew bulb int osocket 3. #
Screw soc ket 3intot he lam phousing by
turning it clo ckwise. #
Place thel am ph ousing in position at thes ide
of redl ens 1and engag eit. Wi
ndshield wipers Switching
thew indshield wiper sonand off Re
quirements:
R The po wersupp lyhas been switched on. 0047
005AWindshield wipe rsoff
0048 0062 Intermittent wiping, low
(lo wr ain sensor sensitivity)
0049 0063 Intermit tent wiping, high
(high rain sensor sensitivity)
004A 00AA Continuous wiping, slow
004B 00A9 Continuous wiping, fast #
Turn thec ombination switc htothe cor re‐
sponding position 0047–004B. #
Single wiping: pushtheb utton on thec ombi‐
nation switc hinthe direction of ar row6. #
Towa sh: push theb utton on thec ombination
switc hinthe direction of ar row6asfaras
th es econ dpoint of resis tance. Light and vision
85

Information on brakes
&
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. *
NO
TEWearing out theb rake linings by
continuously dep ressing theb rake pedal #
Do no tdepress theb rake pedal continu‐
ously whils tdriving. #
Touse theb raking ef fect of thee ngine,
shif ttoa lowe rgear in good time. Downhillg
radients
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 (/ page106).
% Chang
ethe shif trang eing oodt ime when
cruise control is acti vated. Obser vethed riv‐
ing tips (/ page98).
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
If th eb rake sh ave been subjected toah eavy
load, do no tstopt he vehicle immediatel y.Drive
on foras hortwhile. The brakes cool down more
qu ickl yint he air flow.
If th eb rake sh ave been used onl ymoderately,
yo us houl doccasionall ytesttheir ef fectiveness.
To do this, brak emoref irml yfromah igherspeed
whil epaying attention tothet raffic conditions.
Th eb rake sw illg ripb ette rasar esult.
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.Maintai nagreater di stanc etot he
ve hicle in front.
While paying attention tothet raffic conditions,
yo us houl dbrake thev ehicle firm lyafte rd 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 considerab ly,
or braking ma yhappen on onl yone side
R maintain an especiall ylarg esafed ista nce to
th ev ehicle in front
To remo vethel ayer of salt:
R appl ythe brakes from time 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 ,regularly monitor and checka ll of the
brakepads byper form ing avisual inspection to
look form aterial wear on thep ads.
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 re commended 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 everthe wheels are
re mo ved.
Chec kthe brakepads in thef ollowing cases:
R Ateve ryservice according tothem ainte‐
nanc einter val
R Befor elong journe ys
R Ateve rytirec hange
R Regular visual inspection fory our owns afety 100
Driving and pa rking

traf
fica nd inter vene if necessa ry.Bea wareofthe
limitation sregarding thes afeu se of these sys‐
te ms.
If yo uf ail toadap tyour driving style, thed riving
sy stems can neither reduce ther isk of accident
nor override thel aws of ph ysics. The road and
we ather condition saswell asthet raffic situation
canno talway sbet aken in toaccount. In
fo rm ation on vehicl esensor sand cameras Some driving and driving saf
etys ystems use
camera sand radar or ultrasonic sensor stomoni‐
to rt he area in front of, behind or next tothev ehi‐
cle. 1
Multifunction camera
2 Ultrasonic sensors
3 Rear vie wcamera
% Depending on
thev ehicle's equipment, the
ra dar sensor sareintegrated on thes ide of
th er ear bumper sand/or behin dthe
Mercedes star in ther adiator grill. &
WARNING Risk of accident du eto
re stricted de tection per form anc eofv ehi‐
cle sensor sand cameras
If th ea reaa round vehicle sensor sorcameras
is co vered, damaged or dirty ,certain driving
and saf etys yst ems cann otfunction cor rectly.
The reisar isk of an accident. #
Keep thea reaa round vehicle sensor sor
cameras clear of an yobstructions and
clean. #
Have damag etothe bumper ,radiator
grille or stone chipping in thea reaof th
ef ront and rear wind owsrepaired at a
qu alified specialis tworks hop. Ke
ep thea reas of thec amera sand sensor sfree
of dirt, ice and slush (/ page184). The sensors
and cameras and their de tection area smustn ot
be co vered. Do no tattac hadditional license plate
holders, advertisin gmedia, sticke rs,foils or stone
pr otection foils in thed etection rang eoft he sen‐
sor sand cameras. Ensur ethat no pr otru ding load
ex tends int othe de tection area.
In thee vent of damage, or following aseve re
impact ,have thef unction of thes ensor schec ked
at aq ualified specialis tworks hop. Ha vedamage
or stone chips in thea reaoft he cameras
re paired at aqualified specialis tworks hop. Overvie
wofdriving 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 BrakingSystem)
(/ page111 )
R BAS(Bra ke Assist System) (/ page111 )
R ESP ®
(Ele ctronic Stability Program)
(/ page111 )
R EBD ( Electronic Brakeforce Distribution)
(/ page113 )
R ActiveB rake Assi st (/ pag e113 )
R Cruis econt rol(/pa ge115)
R ActiveD ista nce Assi stDISTRONIC
(/ page 116)
R Hill star ta ssis t(/pag e120)
R HOLD function (/ page121 )
R Parking Assis tPARKTRONIC (/ page 122)
R Rear vie wcamer a(/ pag e123)
R ActiveP arking Assis t(/pag e125)
R ATTENTION ASSIS T(/ pag e127)
R Blind Spo tAssis t(/pag e129)
R Lane Keeping Assis t(/pag e129) 11 0
Driving and pa rking

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

Obser
vethen otes on driving sy stems and your
re sponsibility ,otherwise youc anno trecognize
danger s(/ page 109).
Sy stem limits
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing ins tances, fore xamp le:
R in sn ow,rain, fogorh eavy spr ay
R ifth er eisd irtont heradar sensor sorthey
ar ec overed
R ifth er eisi nterfere nce from radar sources or
stro ngradar reflections, fore xamp le in park‐
ing garages
R in traf fics ituations whe refrequent speed
ch anges ar erequired, e.g. in heavy traf ficor
on winding roads or off- road
R onroads wit hsteep downhill or uphill gradi‐
ents
R on winding roads
The sy stem cann otdetect stationar yobjects
unles sthese wereprev iousl ydetected as moving.
In addition, on slipper yorslickr oads, braking or
accelerating can caus eone or se veraloft he drive
wheels tolose traction and thev ehicle can then
skid.
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% ofthep ossible
deceleration. If this deceleration is no tsuffi‐
cient, ActiveD ista nce Assi stDISTRONIC
alerts youw ithav isualand acoustic warning. #
Adjus tyour speed and maintain asuita‐
ble dis tance from thev ehicle in front. #
Brak ethe vehicle yourself and/or take
ev asiv eaction. &
WARNING Risk of accident if de tection
function of ActiveD istan ce Assi st
DISTRONI Cisimpaired
Ac tiveD ista nce Assi stDISTRONI Cdoesn ot
re act or has alimited reaction:
R when drivin gonadiffe re nt lane or when
ch anging lanes
R topedestrians, animals, bicycles or sta‐
tionar yvehicles, or unexpected obs tacles
R tocomple xtraffic conditions
R tooncomin gvehicles and crossing traf fic
As aresult, ActiveD ista nce Assi stDISTRONIC
ma yneith er giv ewarnings nor inter vene in
su ch situations. #
Alwayso bser vethet raffic conditions
carefull yand react according ly. Ac
tiveD ista nce Assi stDISTRONI Cmaynotd etect
nar row vehicles driving in front, e.g. mo torcyc les
or vehicles no ttrave ling in line wit hyour vehicle.
Operating Activ eD ista nce Assis tDISTRONIC
Re quirements
R The vehicle has been star ted. It ma ytakeup
to twom inutes of driving be fore ActiveD is‐
ta nce Assi stDISTRONI Cisready foru se.
R The parking brak ehas been released.
R ESP ®
is activated and is no tinter vening.
R ActiveP arking Assis tisnotactivated.
R The transmissio nisinposition005B.
R The door sand tailgate/rear-en ddoor sare
closed.
R The driver's seat belt is fastened. Driving and parking
117

When using
ther eve rsew arning device described
here, obser vethel egal requ irements fort he
countr yyou ar ecurrently in. PA
RKTRONIC Fu
nction of PARKTRONIC
PA RKTRONI Cisanelectronic parkin gassis tance
sy stem wit hultrasonic sensors. The sy stem moni‐
to rs thea reaa round your vehicle using sensors
on thef ront bumper and on ther ear bumper.
PA RKTRONI Cindicates visuall yand audibl ythe
dis tance between your vehicle and an object.
The warning ranges in front of and behind the
ve hicle ar eindicated bydiffere nt wa rning tones.
PA RKTRONI Cisonly an aid. It is no tasubstitute
fo ry ou paying attention tothes urroundings. Yo u
ar ea lway sr esponsibl efor saf emaneu vering,
pa rking and exitin gap arkin gspace. Mak esure
th at ther ea reno persons, animals or object setc.
in them aneuvering area while maneuvering and
parking or exitin gparkin gspaces.
Re quirements fora utomatic activation:
R The ignitio nisswitched on.
R The parking brak ehas been released.
The selec tedt ransmission position de term ines
whe ther thef ront and/or rear area is monitored.
Fr ont area only:
R Transmission position 005B
Fr ont and rear area:
R Transmission position 005E
R Transmission position 005C
Re gardless of transmissio nposition,
PA RKTRONI Cautomatical lymonitor sthe area
behind thev ehicle if thev ehicle begins toroll
backwards, e.g. af ters topping on an uphill gradi‐
ent.
PA RKTRONI Cisdeactivated at speeds abo ve
11 mp h(18 km/h). PARKTRONI Cisreactivated at
speeds belo w10mph (16km/h).
If yo ur vehicle is equipped wit hthe cor rect elec‐
trica lwirin gfor trailer operation ,PARKTRONIC
de tects acoupled-u ptrail er.P ARKTRONIC is
deactivated fort he rear area when youe stablish
an electrical connection between your vehicle
and atrailer .Ify ou use an adap terf or thes ocket,
unplugitf romt he soc keta fter uncoupling the
traile r.Otherwise, PARKTRONI Cremain sdeacti‐
va tedf or ther ear area. Re
mo vead etachable trailer coupling if it is no
lon gerrequired. PARKTRONI Cmeasures them ini‐
mum de tection rang etoano bstacle from the
bumper ,not theb all nec k.
Wa rning displa ys Fr
ont area warning displa yonthe center of the
cockpit Re
ar area warning displa yonthe cockpit (e xam‐
ple: Cargo Van) 12 2
Driving and pa rking