2021 MERCEDES-BENZ METRIS MY21 Operator's Manual

and
rear seat sdonotslac keno nce thec hild
re stra int sy stem is secured (/ page36). #
Installth ec hild restra int sy stem.
The entir ebase of thec hild restra int sy stem
mus talway sr estont he sitting sur face of the
re ar seat. #
Alwaysm akes uret hat thes houlder belt strap
is cor rectl yr outed from thes eat belt outle tof
th ev ehicle tothes houlder belt guide on the
ch ild restra int sy stem.
The shoulder belt stra pm ustber outed for‐
wa rdsa nd down wardsf romt he seat belt out‐
let.
Note sonr earward-facin gand forw ard-facing
ch ild restra int sy stems on thec o-d rive rs eat &
WARNING Risk of inju ryor deat hwhen
using achild restra int sy stem while the
co-driver airba gisenabled
If yo us ecur eac hild in achild restra int sys‐
te mont he co-driver seat and the
PA SSENGER AIR BAGO FF indicator lam pis
off, thec o-driver airbag can deplo yinthe
eve nt of an accident.
The child could be stru ck bythea irbag. #
Alwayse nsur ethat thec o-driver airbag
is disabled. The PASSENGER AIR BAG
OFF indicator lam pmustbel it.
NEVER use arear wardfacing child restra int
on aseat pr otected byan ENABLE DAIRBAG
in front of it, DE ATHorS ERIOU SINJU RYto
th eC HILD ma yoccur. Obser
vethes pecific instruction sfor ther ear‐
wa rd-facing and forw ard-facin gchild restra int
sy stems (/ page39).
Alw ayso bser vethes tatus of thec o-driver airbag
on theP ASSENGER AIR BAGO FF indicator lamp:
R When usin garearward-facing child restra int
sy stem on thec o-driver seat, thec o-driver
airbag mus talway sbed isabled. It is only
deactivated if theP ASSENGER AIR BAGO FF
indicator lam pislit continuously
(/ page31).
R Ifth eP ASSENGER AIR BAGO FF indicator
lam piso ff,t he co-driver airbag is enabled.
The co-driver airbag ma ydeplo yduring an
accident. Securing
thec hild restra int sy stem wit hthe
seat belt on thec o-d rive rs eat
Whe ninstalling abelt-secured child restra int sys‐
te mont he co-driver seat, alw ayso bser vethef ol‐
lowing:
0073 Obser
vethen otes on rear wa rd-facing and
fo rw ard-facin gchild restra int sy stems on the
co-driver sea t(/pa ge39).
0073 Obse
rvet he child restra int sy stem manufac‐
turer's ins tallation and operatin ginstruc‐
tions.
0073 When using
aforwa rd-facin gchild restra int
sy stem in categor yI:removetheh ead
re stra int from ther espectiv eseat, if possi‐
ble.
Af tert he child restra int sy stem has been
re mo ved, replace theh ead restra int immedi‐
ately and adjus tall head restra int sc orrectl y.
0073 The backres
toftheforw ard-facin gchild
re stra int sy stem must, as farasp ossible, be
re sting on thes eat backres tofthe co-driver
seat.
0073 Fo
rc ertain child restra int sy stems in weight
categor yIIorIII,ther em aybe restrictions on
th em aximum size setting, e.g. due topossi‐
ble con tact wi th theroof.
0073 The
child restra int sy stem mus tnotbe put
under stra in between ther oof and thes eat
cushion and/or be ins talled facing thew rong
direction.
0073 The
child restra int sy stem mus tnotbe put
under stra in by theh ead restra int .A dju stthe
head restra int sasa ppropriate.
0073 Ne
verp lace objects (e.g. cushions) under or
behind thec hild restra int sy stem.
The seat belt on thec o-driver side is equipped
wit has pecial seat belt retractor.
Whe nenabled ,the special seat belt retractor
ensures that thes eat belt does no tslac keno nce
th ec hild seat is secured (/ page36). #
Setthe co-driver seat as farb ackasp ossible
and mo vethes eat int othe highes tposition
possible. #
Setthe seat backres ttothe mos tvertical
position possible. #
Installth ec hild restra int sy stem.
The entir ebase of thec hild restra int sy stem
mus talway sr estont he sitting sur face of the
co-driver seat. Occupant saf
ety39

#
Alwaysm akes uret hat thes houlder belt strap
is cor rectl yr outed from thes eat belt outle tof
th ev ehicle tothes houlder belt guide on the
ch ild restra int sy stem.
The shoulder belt stra pm ustber outed for‐
wa rdsa nd down wardsf romt he seat belt out‐
let. #
If necessar y,adjus tthe seat belt outle tand
th ec o-driver seat as appropriate. Child saf
etyl oc ks Ac
tivatin gordeactivatin gchild saf etyl oc ks
fo rt he doo rs &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If ch ildren ar eleftu nsupervised in thev ehi‐
cle, they could, in pa rticular:
R Open doors, thereb yendangering other
persons or road users.
R Getout and be stru ck byoncomin gtraf‐
fi c.
R Ope rate ve hicle equipment and become
trapped, fore xamp le.
In addition ,the children could also se tthe
ve hicle in motion, fore xamp leby:
R Releasing thep arking brake.
R Changing thet ransmission position.
R Startin gthe vehicle. #
Neverlea ve children unat tende dint he
ve hicle. #
When leaving thev ehicle, alw ayst ake
th eS martK eywit hyou and loc kthe
ve hicle. #
Keep thev ehicle SmartK eyout of reach
of children. &
WARNING Dangertolifed uetoexposure
to extreme hea torcoldint hevehicle
If people, particular lych ildren, ar eexpose dto
ex treme temp eratures overane xtended
perio doft ime,ther eisar isk of serious injury
or danger tolife. #
Neverlea ve persons, children in particu‐
lar ,u nat tende dint hevehicle. &
WARNING Risk of accident and injury
du etoc hildren lef tunat tende dint he
ve hicle
If ch ildren ar etrave ling in thev ehicle, they
could, in pa rticular:
R Open doors, thereb yendangering other
persons or road users
R Getout and be stru ck byoncomin gtraffic
R Operat evehicle equipment and become
trapped, fore xamp le #
Alwaysa ctivat ethe child saf etyl oc ks
ins talled if children ar etrave ling in the
ve hicle. #
Neverlea ve children unat tende dint he
ve hicle. #
When leaving thev ehicle, alw ayst ake
th eS martK eywit hyou and loc kthe
ve hicle. The
following door shave child saf etyl oc ks:
R Sliding doo rs
R Pop-out windo ws
The child saf etyl oc ks on thed oor ssecur eeach
door separatel y.The door scan no longer be
opened from thei nside (e xception: electric slid‐
ing door). When thev ehicle is unloc ked, thed oor
can be opened from theo utside.
If th ee lectric sliding door is secured, onl ythe
sliding door contro ls inther ear compartment are
deactivated. The electric sliding door can be
opened at an ytimeu singthe switc hinthe center
console. #
Slide child saf etyl oc kb olt 1 toposition 0048
(activate) or 0049(deactivate). 40
Occupant saf ety

#
Mak esuret hat thec hild saf etyl oc ks are
wo rking properly.
Ac tivatin gordeactivatin gchild saf etyl oc ks
fo rt he pop-out windo ws #
Toactivat eand deacti vate: press button
1.
If th ei ndicator lam ponbutton1is lit, oper‐
ation of thee lectrical pop-out windo wsis dis‐
abled. Operation is then onl ypossible using
th eb uttons in thed rive r's door. Note
sonp etsint hevehicle &
WARNING Risk of accident and inju ry
due toanimals lef tunsecured or unat ten‐
de dint hevehicle
If yo ul eave animals in thev ehicle unattended
or unsecured, they could possib lypress but‐
to ns or switches.
An animal may: R Activat evehicle equipment and become
trapped, fore xamp le
R Swit chsystems on or of fand endanger
ot her road users
Unsec ured animals ma ybethrow na roun din
th ev ehicle in thee vent of an accident or sud‐
den steering and braking maneuver sand
injur evehicle occupants in thep rocess. #
Neverlea ve animals in thev ehicle unat‐
te nded. #
Alwaysc orrectly secu reanimals while
driving, e.g .usin gas uitable animal car‐
ri er. Occupant saf
ety41

SmartK
ey Overvie
wofkeyfunctions &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If ch ildren ar eleftu nsupervised in thev ehi‐
cle, they could, in pa rticular:
R open doors, thereb yendangering other
persons or road users.
R geto utand be stru ck byoncomin gtraffic.
R operat evehicle equipmen tand become
trapped, fore xamp le.
In addition ,the children could also se tthe
ve hicle in motion, fore xamp leby:
R releasing thep arking brake.
R changing thet ransmission position.
R startin gthe vehicle. #
Neverlea ve children unat tende dint he
ve hicle. #
When leaving thev ehicle, alw ayst ake
th eS martK eywit hyou and loc kthe
ve hicle. #
Keep thev ehicle SmartK eyout of reach
of children. &
WARNING Risk of accident du etothe
ke yinadver tently turning in thei gnition
lock
If yo uf astenh eavy or larg eobject stot hekey,
th ek eycan inadver tently tur ninthe ignition
loc kw hile youa redriving. #
Do no tfas tena nyheavy or larg eobjects
to thek ey. #
Remo vebulky keyr ing sbefor eyou
inser tthe keyintot he ignition loc k. *
NO
TEDama getotheS martK eycaused
by magnetic fields #
Keep theS martK eyaway from strong
magnetic fields. 1
Indicator lamp
2 Toloc kthe vehicle centra lly
3 Tounlo ckthes liding door sand thet ailgate
or rear-en ddoor ,ortou nlockand open/
close thee lectric sliding door
4 Emer gency key
5 Tounlo ckthev ehicle cent rally or thef ront
door(s) only
The key's factor ysetting enables youtoc entrally
loc ka nd unloc kthe following components:
R thed rive r's door and co-driver door
R thes liding doors
R thet ailgat eorrear-end doors
% If
yo udon otopen thev ehicle within appr ox‐
imatel y40s econds of unlocking, thev ehicle
will loc kagain and anti-thef tprotection will
be armed again.
Do no tkeep thek eytoge ther wit helectronic devi‐
ces or me tallic objects. This can af fect thek ey's
functionalit y.
% If
th ec hec klam pd oes no tlight up when you
press the0036 or0037 button, theb atter yis
dischar ged.
Re place thek eybat tery ( / pag e43). Changing
theu nlocking settings The
keyh asthef ollowing adjus table unlocking
functions:
R Unloc kcentrally
R Unloc kthe driver's and co-driver's door
(panel van)
R Unloc kthe driver's door (Tourer) #
Toswitc hbetwe en thes ettings: press and
hold the0036 and0037 buttons at thes ame
time fora pproxima tely six seconds until the
indicator lam pflashes twice. #
Tounlo ckthev ehicle centrall ywhent he
unlockin gfunction is selected fort he driv‐ 42
Opening and closing

er's door or
thed rive r's and co-d rive r's
door: pressthe0036 button asecon dtime. Re
moving and inse rting thee mer gency key %
The anti-thef
talarms ystem (A TA)ist riggered
when youu nlockand open thev ehicle using
th ee mer gency key( /pag e59). #
Toremo ve: sliderelease catch 1inthe
direction of thea rrow and at thes ame time,
re mo veemer gency key2from thek eycom‐
ple tely. #
Toinser t:push emer gency key2com‐
ple tely in tothek eyuntil it en gage sa nd
re lease cat ch1 is bac kinits basic position. Re
placing the keyb attery &
DANG ER Serious damag etohealth
caused byswallowing batteries
Batteries contain toxic and cor rosiv es ubs tan‐
ces. Swallowing batterie smaycause serious
damag etohealth.
Ther eisar isk offata linjur y. #
Keep batteries out of ther eac hofc hil‐
dren. #
If batteries ar eswallowe d, seek medical
attention immediately. +
ENVIRONMEN
TALN OTE Environmental
damag eduetoimproper disposal of bat‐
te ries Batteries contain pollutants. It is
illegal todispose of them wit hthe household
ru bbish. #
Dispose of batteries in an
environmen tallyr esponsibl emanner.
Ta ke dischar gedb atteries toaq ualified
specialis tworks hop or toac ollection
poin tfor used batteries. Re
quirements:
R Your equir eaCR2 0253Vc ell battery
Changin gthe battery
Mercedes-Benz recommends that youh ave the
batter ychanged at aqualified specialis twork‐
shop. #
Remo vethee mer gency key( /pag e43). #
Press eme rgency key2intot he opening in
th ek eyinthed irection of thea rrow until bat‐
te ry compa rtment co ver1opens. When
doing so, do no thold batter ycompartment
co ver 1shut. #
Tapt he keya gainst thep alm of your han dso
th at battery 3falls out of theb atter ycom‐
partment. #
Inser tthe ne wbatter yintot he batter ytray
wit hthe positiv epole facing up wards. Use a
lint-free clo thtodo so. #
Install batter ycompartment co ver1tothe
ke yc asing wit hthe front lugs firs ta nd push it
closed. #
Slide emergency key2bac kintot he key
( / pag e43). Openin
gand closing 43

Problems with
thek ey Problem
Possible causes/consequences and 0050 0050Solutions
It is no longer possible to
loc kthe vehicle using the
key. Po
ssible causes:
R The door sarenotc losed proper ly. #
Close thed oor sproperly and loc kthe vehicle again.
The tur nsignal lamps do
no tflash when thev ehi‐
cle is loc ked. Po
ssible causes:
R The central locking sy stem has malfunctioned. #
Lockthe vehicle using thee mer gency key( /pag e43) or press
down thes afet yp insa nd then close thed oors. #
Have thel ocking sy stem checkedataq ualified specialis tworks hop.
It is no longer possible to
loc koru nlockthe vehicle
using thek ey. Po
ssible causes:
R The keyb atte ry iswe ak or dischar ged.
R The keyisf aulty. #
Point thet ip of thek eyatthed rive r's door handle from very close
ra ng ea nd press the0036 or0037 button.
If th is does no twork: #
Replace thek eybat tery ( / pag e43).
or #
Use thee mer gency keytou nlockand loc kthe vehicle (/ page43). #
Have thek eycheckedataq ualified specialis tworks hop.
The engine canno tbe
st ar tedu sing thek ey. Po
ssible causes:
R The on-boar delectrical sy stem voltag eist oo lo w. #
Switc hoffalln on-essential consumers, su chas interior lighting ,and
tr ytos tart thee ngine again.
If th is does no twork: #
Chec kthe star terb atter yand charge it, if necessar y(/ pag e191).
or #
Jump- star tt he vehicle (/ page191).
or #
Consul taqualified specialis tworks hop.
Yo uh ave lostak ey. #
Have thek eydeacti vatedataq ualified specialis tworks hop. #
If necessar y,ha ve them echanical loc ksreplaced.
Yo uh ave lostthe emer‐
ge ncy key. #
Repor tthe loss immediatel ytothevehicle insurers. #
If necessar y,ha ve them echanical loc ksreplaced. 44
Opening and closing

Doors
Un
locking and opening thed oor from inside Doo
rhandle (e xamp le: driver's door) #
Pull door handle 2.
Lockin gknob 1pops up when thed oor is
unloc ked. Centrall
ylocking and unlocking thed oor from
th ei nside &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If ch ildren ar eleftu nsupervised in thev ehi‐
cle, they could, in pa rticular:
R open doors, thereb yendangering other
persons or road users.
R geto utand be stru ck byoncomin gtraffic.
R operat evehicle equipmen tand become
trapped, fore xamp le.
In addition ,the children could also se tthe
ve hicle in motion, fore xamp leby:
R releasing thep arking brake.
R changing thet ransmission position.
R startin gthe vehicle. #
Neverlea ve children unat tende dint he
ve hicle. #
When leaving thev ehicle, alw ayst ake
th eS martK eywit hyou and loc kthe
ve hicle. #
Keep thev ehicle SmartK eyout of reach
of children. &
WARNING Dangertolifed uetoexposure
to extreme hea torcoldint hevehicle
If people, particular lych ildren, ar eexpose dto
ex treme temp eratures overane xtended
perio doft ime,ther eisar isk of serious injury
or danger tolife. #
Neverlea ve persons, children in particu‐
lar ,u nat tende dint hevehicle. Yo
uc an use thec ent rallockin gbuttons tocen‐
trally loc kand unloc kthe entir evehicle from the
inside.
The central lockin gbuttons ar elocated in the
driver's door. Central locking buttons (vehicles wit
hmanually
adjus table front seats) Central locking buttons (vehicles wit
helectrically
adjus table front seats) #
Toloc koru nlockthe entir evehicle: press
but ton 1(unlock) or 2(lock) when the
door sareclosed. Openin
gand closing 45

Obser
vethef ollowing settings when locking and
unlocking from inside:
R Ifth ed rive r's or co-driver's door is open, the
open door is no tloc ked.
All other door sand thet ailgate/rear-end
door sareloc ked.
R Ifas liding door or thet ailgate/rear-end
door sareopen, onl ythe driver's and co-driv‐
er's door sareloc ked.
R Youc anno tunlo ckthev ehicle cent rally from
th ei nside if thev ehicle has been loc kedw ith
th ek ey.
R Ifth ev ehicle has been loc kedu sing thec en‐
tral locking button and adoor is opened from
th ei nside, onl ythe door that has been
opened is unlo cked.
R Ifth ev ehicle has pr eviousl ybeen loc kedw ith
th ek ey,o pening adoor from thei nside will
trigger thea nti-th efta larms ystem. Switc hoff
th ea larm( /pag e60). Ac
tivating/deactivatin gthe automati clock‐
in gm echanism Requ
irements:
R The po wersupply or thei gnition is switched
on.
R The door sareclosed.
When thei gnition is switched on and thev ehicle
is driving at aspeed abo ve9m ph (1 5km/h), the
ve hicle loc ksautomaticall y. Cent
rallockin gbuttons (vehicles wit hmanually
adjus table front seats) Central locking buttons (vehicles wit
helectrically
adjus table front seats)
R Ifth ev ehicle is on aroller dynamo metera nd
is being towe dorp ushed, ther eisar isk of
being loc kedo ut when thef unction is
switched on. #
Toactivate: press and hold button 2for
appr oximately five seconds.
An acoustic signal sounds. #
Todeactivate: press and hol dbutton 1for
appr oximately five seconds.
An acoustic signal sounds. Un
locking and locking thed rive r's door with
th ee mer gency key %
To
loc kthe vehicle full ywitht he emer gency
ke y,press down thel ocking pins of the
doors. Then loc kthe driver's door wit hthe
emergency key. #
Tounlo ck:inser tthe emer gency keyf ullyinto
th ed rive r's door loc kand tur nitcounter-
clockwise. #
Tolock: insertthe emer gency keyf ullyinto
th ed rive r's door loc kand tur nitclockwise.
% Right-hand driv
evehicles: turnthe emer‐
ge ncy keyint he opposit edirection fore ach
case. 46
Opening and closing