2021 MERCEDES-BENZ METRIS warning light

Af
terl eaving thec arwa sh, pa yattention tothe
fo llowing:
R The outsid emirro rs aref ullyf olded out again
and an additional antenna is mounted again.
R Waxresidues on thew indshield and wiper
ru bber sare re movedtop reve nt smearing and
re duce wiper noise.
Re mo ve wa xresidues from thec amera lens in
ve hicles wit harear vie wcamer a(/ pag e184). Note
sonu se ofapowerwa sher &
WARNING Risk of an accident when
using po werw ashe rswit hround-spr ay
nozzles
The wate rjet can cause extern all yinv isible
damage.
Component sdamaged in this wa ym ayunex‐
pec tedlyf ail. #
Do no tuse ap owerwa sher wit hround-
spra ynozzle s. #
Have damaged tires or chassis parts
re placed immediatel y. *
NO
TEDama getocomponent pa rtsd ue
to improper high-pressur ecleaning Components can be damaged if
thed istan ce
of theh igh-pressur enozzle is toos mall. #
Maintain aminimum dis tance of about
12 in (30 cm) between theh igh-pres‐
sur enozzle and car parts. #
Do no tuse ap owerwa sher wit ha
ro und-spr aynozzle. #
Keep thew ater je tmoving cons tantly
whil ecleaning. #
Do no tclean thef ollowing components
wit hthe po werw ashe r:
R Electrical components
R Plug connecto rs
R Rear vie wcamera
R Driv etra in
R Seals
R Hoses *
NO
TEDama gecaused bytheu se of a
po we rw ashe rinthevehicle interior The pressurized
watercreated bythep ower
wa sher and thea ssociated spr aycould cause
considerable damag etothevehicle. #
Neveru se ap owe rwashe rinthevehicle
interior. *
NO
TEDama getothee xhau stgasa fter‐
treatments thro ugh incor rect cleaning Cleaning
thes ystem when warm orthe
ef fects of direct waterjetsi ntot he exhaust
pipe can damag ethe exhaus tgas af tertre at‐
ment. #
Only clean thes ystemw hen thes ystem
is cold. #
Do no tdirect thew ater je tint ot he
ex haus tpipe. Wa
shing thee ngine
* NO
TEDama geand malfunctions due to
wa shing thee ngine #
Toprev ent damag eand malfunctions of
th ee ngine, obser vethef ollowing
points:
R When using high-pressur eorsteam
cleaners, do no tpoint thew ater jet
directly at electrica lcomponents
and thee nd of electric cables.
R Mak esuret hat no watere nter sthe
ve nt and ventilation openings.
R Use prese rvativ eagentsint he
engine af terw ashing thee ngine.
R Protect theb elt driv efromp reser va‐
tio na gents. Wa
shing thev ehicle byhand Obser
vethel egal requ irements, fore xamp le in
man ycountries washing byhand is onl yallowed
at speciall ydesignated wash ba ys. #
Washthev ehicle wit hlukew armw ater and a
sof tcar sponge. When doing so, do not
ex pose thev ehicle todirect sunlight. #
Use amild cleanin gagent,e .g.aM ercedes-
Benz appr ovedcar shampoo. Maintenanc
eand care 18 3

#
Carefull yspra ythe vehicle wit hwater and dry
of fw ithal eather clo th.Don otpoint the
wate rjet directly int othe air inle tgrille.
When operating thev ehicle in winter ,remo veall
traces of road salt deposits carefull yand as soon
as possible. Note
sonc areofp aint and matte finish *
NO
TEPaint wo rkdamag eand cor rosion
due toinadequat ecare Fa
ilur etop romp tly and thoroughly remo ve
dir tfromb irdd roppings or other residue
could result in paintwor kdamag eand cor ro‐
sion at alater date. #
Cleand irto ffpaint and matt efinish
th oroughly and as soon as possible. Obser
vethen otes on cleaning and car einorder
to avoid damag etothe paintwor k.
Pa int
R Insect remains: soak wit hinsect remo vera nd
th en wash off.
R Birdd roppings: soak wit hwater and then
wa sh off.
R Tree resin, oils, fuels and greases: remo veby
ru bbing gentl yw ithac loth soaked in petro‐
leum ether or lighter fluid.
R Coolan tand brak efluid: remo vewit had amp
clo thand clear water.
R Tars tains :use tarr emo ver.
R Wax: us eas ilicone remo ver.
R Do no taffix sticke rs,f ilms or similar.
R Remo vedirtass oon as possible.
Mat tefinish
R Onlyuse car eproducts appr ovedfor
Mercedes-Benz.
R Do no tpolish thev ehicle and allo ywheels.
R Onlyusestate-of- the-ar tcar wa shes.
R Do no tuse aw ash program that end switha
ho tw ax treatmen tinautom atic car washes.
R Do no tuse paint cleaners, buf fing or polish‐
ing products, or gloss preser vers,e .g. wax.
R Alwaysh ave paintwor krepair scarried out at
aq ualified specialis tworks hop. Note
sont he car eofvehicle parts &
WARNING Risk of inju ryif unsuitable
climbin gaids ar eused
If yo uu se opening sinthevehicle's body work
or de tach able parts as steps, youc ould:
R Slip and/or fall.
R Damag ethe vehicle and thus slip and fall. #
Alwaysu se anti-slip, stable climbing
aids, e.g .asuitable ladder. &
WARNING Risk of entrapment if the
windshield wiper sareswit ched on while
th ew indshield is being cleaned
If th ew indshield wiper saresetinm otion
while youa recleanin gthe windshield or
wiper blades, youc an be trapped bythew iper
arm. #
Alwayss witc hoffthew indshield wipers
and thei gnition befor ecleaning the
windshield or wiper blades. &
WARNING Risk of bu rnsf romt hetailpipe
and tailpipe trims
The exhaus ttailpipe and tailpipe trims can
becom everyh ot.Ify ou come int ocontact
wi th th ese parts of thev ehicle, youc ould
bur nyourself. #
Alwaysbep articularly careful around
th et ailpipe and thet ailpipe trims and
supervise children especially close lyin
th is area. #
Allowvehicle parts tocool down before
to uchin gthem. *
NO
TEDama gecaused bytheu se of
openings in theb odywor kordetachable
par tasa step Using
thel owe rguide of thes liding door (car‐
ri age) as astepc an damag ethe trim and/or
mechanism of thes liding door. #
Do no tuse theg uide of thes liding door
(car riage) as astep. %
Information on suitable cleaning agentsor
cleaning clo
thsc an be obtained from aquali‐
fi ed specialis tworks hop. 184
Maintenance and care

To
avo id damag etothevehicle, follo wt he
instructions forc leaning and car eofthefollowing
ve hicle parts:
Wheels and rims
R Use watera nd acid-free alloy wheel cleaner.
R Do no tuse acidic allo ywheel cleaner sto
re mo vebrak edust. Otherwise, wheel bolts
and brak ecomponents could be damaged.
R Toavo id cor rosion of brak ediscs and brake‐
pads, driv efor afew minutes af terc leaning
befor eparking thev ehicle. The brak ediscs
and brakepads warm up and dr yout.
Wi ndo ws
R Clean thew indo wsinside and outsid ewitha
dam pcloth and wit hacleaning agent recom‐
mende dfor Mercedes-Benz.
R Do no tuse dr ycloth sora brasiv eorsolvent-
based cleaning agents toclea nthe inside of
windo ws.
Wi per blades
R Carefully clea nthe folded-a wayw iper blades
wit had ampcloth.
R Fold wiper ar mawayfromt herear wind ow
( / pag e87).
R Do no tclean thew iper blades tooo ften.
Exterior lighting
R Clean thec oversw ithaw etspong eand mild
cleaning agent, e.g .car sha mpoo.
R Onlyuse cleaning agents or clo thss uitable
fo rp last ic co vers.
Sensors R Clean thes ensor sinthe front and rear bump‐
er sw ithas oftc loth and car shampoo
(/ page110).
R When using apowe rwashe r,ke ep am inimum
dis tance of 12in (30 cm).
Re ar vie wcamera
R Vehicles with atailgate: switc hont he igni‐
tion and shif tthe transmission tothe 005Eposi‐
tion toopen thec amera co verw hen the
engine is switched of f(/pag e110).
R Usec lean wate rand asoftc loth toclea nthe
camer alens.
R Do no tuse ap owe rwashe r. Sliding door
R Remo vefore ign object sfromt he vicinity of
th ec ontact plates and contact pins of the
sliding door.
R Cleant he contact plates and contact pins
wit ham ild cleaning agent and asoftc loth.
R Do no toilor grease thec ontact plates and
th ec ontact pins.
Ta ilpipes
R Clean wit hacleanin gagent recommended for
Mercedes-Benz, especially in thew inter and
af te rw ashing thev ehicle.
R Do no tuse acidic cleaning agents.
Tr aile rhitch
Obse rvet he no tesonc areint he trailer hitch
manufacturer's operating instructions. Note
soni nterior care &
WARNING Risk of inju ryfrom pla stic
parts breakin goffafte rt he use of sol‐
ve nt-based care products
Ca reand cleaning products con tainin gsol‐
ve nts can cause su rfaces in thec ockpit to
become porous. When thea irbags are
deplo yed, plastic parts ma ybreak away. #
Do no tuse anyc areorc leaning prod‐
ucts containing sol vents toclea nthe
cockpit. &
WARNING Risk of inju ryor deat hfrom
bleached seat belts
Bleaching or dyeing seat belts can se verely
we aken them.
This can, fore xamp le, cause seat belt stotear
or fail in an accident. #
Neverb lea ch or dy eseat belts. To
avo id damag etothevehicle, obser vethef ol‐
lowing instructions forc leaning and care:
Seat belts
R Clean wit hlukewa rmsoap ywater.
R Do no tuse chemical cleaning agents.
R Do no tdryby heating abo ve176°F( 80 °C)
or in direct sunlight. Maintenance and care
18 5

Ke
ep children at asafed ista nce. Obser
vethese Operating Instructions.
Obser vethef ollowing no tes:
R Recharge theb atter ymoref requ entl yint he
fo llowing cases:
- Youp redominantl ydrive shor tdista nces.
- Youp redominantl ydrive at lo woutside
te mp eratures.
- Youl eave thev ehicle par kedf or alengt hy
period.
In order fort he batteries toachie vetheir max‐
imum possible service life, they mus talways
be suf ficiently charge d.
R Consult aqualified specialis tworks hop if you
wish tolea veyour vehicle par kedupf or a
long period of time.
R When youp arkt he vehicle, remo vethek eyif
yo udon otrequ irea nyelect rical consumers.
The vehicle will then use very little energy,
th us conservin gbatte ry powe r.
R Ifyo ur vehicle requ ires jump-s tarting, or if you
wish toprov ide jump-s tarting assis tance to
ano ther vehicle, only use thej ump-s tart con‐
nectio npoint in thee ngine compartment
(/ page191).
Installa tionlocations
Yo ur vehicle ma ybeequipped wit hthe following
th re eb atteries, depending on thee quipment ver‐
sion:
R Starterb atter yint he seat base of ther ight-
hand front seat
R Suppor tbatter yint he seat base of ther ight-
hand front seat
R Auxilia rybatter yinthe seat base of thel eft-
hand front seat St
arting assistanc eand chargin gthe 12 V
battery &
WARNING Risk ofexplosion from afro‐
zen battery
Ad ischar gedb atter ymayfreeze at temp era‐
tures slightl yabove or belo wfreezing point.
During startin gassis tance or batter ycharg‐
ing, batter ygas can be released. #
Alwaysa llowab atterytot hawb efore
ch argin gitorp erform ing startin gassis‐
ta nce. If
th ew arning/indicator lamps do no tlight up in
th ei nstrument clus teratt emperatures around or
belo wfreezing, it is highl yprobable that thed is‐
ch arge db atter yhas frozen.
In this case, obser vethef ollowing points:
R Do no tgivet he vehicle startin gassis tance or
ch arge theb attery
R The service lif eofabatterythat has been
th awe dmaybe reduced drastically
R The startin gbehavior ma ydeteriorate, partic‐
ularly at lo wtemperatures
R It is recommended that youh ave athawed
batter ychec kedataq ualified specialis twork‐
shop &
WARNING Risk ofexplosion during
ch argin gprocess and startin gassis tance
During thec harging process and starting
assis tance, theb atter ymayrelease an explo‐
siv eg as mixture. #
Avoid fire ,o pen flames ,creating spar ks
and smoking. #
Mak esuret her eiss ufficient ventilation. #
Do no tlea no verab atter y. &
WARNING Danger of chemical burns
from theb atter yacid
Batter yacid is caustic. #
Avoid contact wit hthe skin, eyes or
clo thing. #
Do no tlean overthe batter y. #
Do no tinhal ebattery gases. #
Keep children away from theb atter y. Breakdown assis
tance 191

*
NO
TEDama getotheb atter ythrough
self-discharging If dir
tenter sthe batter ycell, batter yself-dis‐
ch argin gwill accelerat eand theb atter ymay
be damaged. #
Onlyclean batteries when thec aps are
scr ewed on. Obser
vethef ollowing points on batter ycare: #
Regular lych eckt he batter yterminals and the
fast ening of then egativ ecable tothec hassis
to ensur ethat they aref irml yseated. #
Lightly grease theu ndersides of theb attery
te rm inal clamps wit hacid- resis tant grease. #
Only clean theb atter yhousing wit hcommer‐
cially available cleaning agents. Disconnecting and
removing the star terb at‐
te ry &
WARNING Risk ofexplosion from hydro‐
ge ng as igniting
The reisad anger of hydrogen gasigniting
when chargin gthe batter yifthereisas hort
circuit or spar ksstar ttof orm. #
Mak esuret hat thep ositiv eterminal of
th ec onnected batter ydoes no tcome
int oc ontact wit hvehicle parts. #
Neverp lace me talo bject sort ools on a
batter y. #
The described order of theb attery
clamps mus tbeobservedw hen con‐
necting and disconnecting theb atter y. #
When giving startin gassistance, alw ays
mak esuret hat youo nly connec tbattery
te rm inals wit hidentical polarity. #
During startin gassis tance, youm ust
obse rvet he described order forc on‐
necting and disconnecting thej umper
cable. #
Do no tconnect or disconnect theb at‐
te ry cla mp sw hile thee ngine is running. &
WARNING Danger of chemical burns
from theb atter yacid
Batter yacid is caustic. #
Avoid contact wit hthe skin, eyes or
clo thing. #
Do no tlean overthe batter y. #
Do no tinhal ebattery gases. #
Keep children away from theb atter y. #
Immedia tely rinse batter yacido ffthor‐
oughly wit hplenty of clean waterand
seek medica lattention immediately. *
NO
TEDama getoelectronic components
due towo rkcar ried out incor rectly on the
battery If
th es tarterb atter yisd isconnected before
th ek eyisremo vedf romt he ignition loc k,
electronic components or assemblies, such
as thea lternator ,can be damaged. #
Switc hoffthee ngine and remo vethe
ke yf romt he ignition loc k. #
Chec ktos eethat ther ea reno indicator
lamps lit in thei nstrument clus ter. #
Alwaysr emo vethen egativ eterminal
clam pfirst and then thep ositiv etermi‐
nal clamp. #
Do no tinter chang ethe batter yclamps. Alw
aysh ave workon theb atter ycarried out at a
qu alified specialis tworks hop.
If, in exceptional circums tances, youm ustd is‐
connec tthe batter yyourself, pa yattention tothe
fo llowing:
R Obser vethen otes on the12Vb attery
(/ page189).
R Secur ethe vehicle topreve nt it from rolling
aw ay.
R Forv ehicles wit hanautomatic transmission,
th et ransmission is loc kedinp osition 005Dafter
disconnecting theb atter y.Yo uc an then no
longer mo vethev ehicle.
R The batter yand thec over of thep ositiv eter‐
mina lclamp mus tbeinstalled securel yduring
operation. 194
Breakdown assis tance

&
WARNING Risk of accident du etotoo
high atirep ressure
Ti re sw ithe xcessively high pressur ecan
bur st.
In addition, they also suf ferf romi rregular
we ar,w hic hc an significantl yimp air theb rak‐
ing properties and theh andling characteris‐
tics. #
Avoid excessively high tir epressures. Excessively high tir
epressur ecan result in:
R Increased braking dis tance
R Impaired handling characteristics
R Irre gular wear
R Impaired drivin gcom fort
R Susceptibility todamage &
WARNING Risk of accident du etorepea‐
te dp ressur edropint he tires
The wheels, valves or tires could be damaged.
To ol ow atirep ressur ecan lead tothet ires
bur sting. #
Examine thet ires forf oreign objects. #
Chec kwhether thet ireh asap uncture
or thev alveh asaleak. #
Ifyo ua reunabl etorectify thed amage,
contact aqualified specialis tworks hop. Yo
uc an find information on recommended tire
pressures fort he vehicle's factor y-ins talled tires
on thef ollowing labels:
R Tire and Loadin gInforma tionp lacar dont he
B‑pi llarofyour vehicle .
R Tire pressur etable on thei nside of thef uel
fi ller flap .
Obse rvet he maximum tir epressure
(/ page213).
Use asuita ble pressur egaug etoc heckthe tire
pressure. The outer appearance of atired oes not
permit an yreliable conclusion about thet ire
pressure.
+ ENVIRONMEN
TALN OTE Environmental
damag eduetoinsuf ficient or excessive
tir ep ressure Insuf
ficient or excessiv etirep ressur eshort‐
ens thes ervice lif eofthe tires. #
Chec kthe tir epressur eregularly ,but at
leas tevery 14 days. Ve
hicles with atirep ressur emonitor: youc an
also checkt he tir epressur eusing theo n-board
computer.
Onl ycorrect tir epressu rewhen thet ires are
cold. Condition sfor cold tires:
R The vehicle has been par kedw itht he tires out
of direct sunlight foratl east thre eh ours.
R The vehicle has tr aveled less than 1m ile
(1.6 km).
Ar ise in thet iret emperatur eof18°F( 10°C)
increases thet irep ressur ebya pprox.10k Pa
(0. 1b ar/1.5 psi). Take this int oaccount when
ch ecking thet irep ressur eofw armt ires.
The tir epressur erecommended fori ncreased
load/spee dinthe tir epressur etable ma yaffect
th er ide comfort. &
WARNING Risk of accident du eto
unsuitable accesso ries on tir evalves
If yo um ountunsuitable accesso ries ont otire
va lves, thet irev alves ma ybeoverloaded and
malfunction ,whic hc an cause tir epressure
loss. #
Onlyscrew standar dvalvec aps or valve
cap sspecifically appr ovedbyM ercedes-
Benz fory our vehicle ont othe tir evalve. Note
sont railer operation
The applicable tir epressur efor thet ires of the
re ar axle is alw ayst he recommended tir epres‐
sur efor afull load. Overvie
wofthe tirepressur etable Wheels and tires
207

Information on maximum tir
eload %
The dat
ashown in thei llustration is sample
data.
Maximum tir eload 1isthem aximum permissi‐
ble weight forw hichthe tir eisa pprove d.
Do no toverload thet ires by ex ceeding them axi‐
mum permissible load. The maximum permissible
load can be found on thev ehicle's Tire and Load‐
ing In form atio nplacar dont he B-pillar on thed riv‐
er's side . Information on maximum tir
epressure %
The dat
ashown in thei llustration is sample
data.
Maximum permitted tir epressure 1mus tnever
be exc eeded. Alw ayso bser vether ecommended
tir ep ressur efor your vehicle when adjusting the
tir ep ressur e(/pag e207). Information on tir
echaracteristics %
The dat
ashown in thei llustration is sample
data.
This information describes thet ype of tir ecord
and then umber of la yers in side wall1 and
under tir etread 2. Ti
re size designation, load-bearing capacity,
speed ratin ga nd load index &
WARNING Risk of inju rythro ugh exceed‐
ing thes pecified tir eload-bearing capa‐
city or thep ermissible speed rating
Exceeding thes pecified tir eload rating or the
permissible speed rating ma ylea dtot ire
dama geand tothet ires bur sting. #
Therefore, onl yuse tir etypes and sizes
appr ovedfor your vehicle model. #
Obser vethet irel oad rating and speed
ra ting requ ired fory our vehicle. 1
Firstletter(s)
2 Nominal tir ewidthinm illimeters
3 Aspect ratio (i npercent)
4 Tire code
5 Rimd iame ter
6 Load-bearing index
7 Load index
8 Speed rating
% The da
tashown in thei llustration is sample
data.
Fu rther information about reading tir edatac an
be obtaine dfroma nyqualified specialis twork‐
shop.
First letter(s) 1 1:
R "LT": light truc ktires in acco rdanc ewithUS
manufacturer standards.
R "C": tires forc ommercial usage in accordance
wit hE uropean manufacturer standards. Wheel
sand tires 213

Wi
ndshield washer fluid Note
sonw indshield washer fluid
Obser vethen otes on operating fluids
(/ page227). &
WARNING ‑Riskoff irea nd injur yfrom
windshiel dwashe rconcentrate
Wi ndshield washer concentrat eishighlyflam‐
mable. It could ignit eifitcomes int ocontact
wi th hote ngine component parts or the
ex haus tsystem. #
Mak esuret hat no windshield washer
concentrat espills out next tothef iller
opening. *
NO
TEDama getothee xterio rlighting
due tounsuitable windshield washer fluid Uns
uitable windshield washer fluid ma ydam‐
ag et he plastic sur face of thee xterio rlighting. #
Onlyuse windshield washer fluid which
is also suitable foru se on plast ic surfa‐
ces, e.g. MB SummerFit or MB Winter‐
Fit. *
NO
TEBlocked spr aynozzle scaused by
mixing windshield washer fluids #
Do no tmix MB SummerFit and MB Win‐
te rFit wit hother windshield washer flu‐
ids. Do no
tuse distilled or de-ionize dwater .Other‐
wise, thef ill le vels ensor ma ygiveaf alse reading.
Re commended windshield washer fluid:
R Abo vefreezing point :e.g. MB SummerFit
R Belo wfreezing point :e.g. MB WinterFit
Fo rthe cor rect mixing ratio ,refer tothei nforma‐
tion on thea nti-freeze container.
Mix thew ashe rfluid wit hwindshield washer fluid
all year round. Re
frigerant Note
sonr efrigerant
Obser vethen otes on operating fluids
(/ page227).
% Yo
ur vehicle's climat econt rols ystemisf illed
wit hthe refrigerant R134a. The refrigerant
R134a contains fluorinated greenhouse gas. *
NO
TEDama gedue toincor rect coolant Using
thew rong coolant can damag ethe air
conditioning sy stem. #
Onlyusether efrigerant R134a or the
PA Go il appr ovedbyM ercedes-Benzf or
yo ur vehicle. #
The appr ovedPAG oil mus tnotbe mixed
wit ha nyPAGo ilth at is no tappr ove dfor
th er efrigerant R134a. Maintenance
work,s uc hasa dding refrigerant or
re placing components, ma ybecarried out only
by aq ualified specialis tworks hop. All thea pplica‐
ble regulations relatin gtot his and theS AE J639
st andar dmustbea dhered to.
All workon thec limat econt rols ystems hould
alw aysbec arried out at aqualified specialist
wo rkshop.
The information label fort he refrigerant tobe
used can be found on ther adiator cross-member. Example:
refrigerant information label
1 Warning symbols
2 Refrigerant capacity
3 Applicabl estandards
4 PAGo il par tnumber
5 Refrigerant type
Wa rning symbols 1refertot hefollowing:
R Potential dangers
R The per form anc eofm aintenance workat a
qu alified specialis tworks hop
Re frigerant capacity
Fr ont air conditioning Model
Refrigerant
All model s2 1.2oz( 600 g) Model
PAGo il
All model s2 .8 oz (79 g) Te
ch nica ldata 231