2021 MERCEDES-BENZ METRIS engine

In some countries, an audible signal wills
ound
and/or amessag ewilla ppear on thed isplay
when thev ehicle reaches them aximum speed
permitted bylaw, e.g. at 75mph(120k m/h).
Ta ch ome ter
* NO
TEEngine damag eduetomaximum
engine speed being exceeded If
th em aximum permissible engine speed is
exc eeded, thee ngine ma ybedamaged. #
Avoid driving in ther ed speed range
(danger zone). Whe
nthe redm arkisr eached, thef uel supply
will be inter rupte dtop rotect thee ngine.
Outsid etem peratu re display
Yo us houl dpayspecial attention toroad condi‐
tions when temp eratures ar earound freezing
point.
Bear in mind that theo utside temp eratur edisplay
indicates them easured air temp eratur eand not
th er oad sur face temp erature.
The outside temp eratur eisdisplayedont he mul‐
tifunction displa y(/pag e140).
Changes in theo utside temp eratur ewill be dis‐
pla yeda fter as hor tdela y.
Coolant temperatur edisplay &
WARNING Risk of bu rnsw hen opening
th eh ood
If yo uo pen theh ood when thee ngine has
ov erheated or when ther eisaf ireint he
engine compartment, thef ollowing situations
ma yoccur:
R Youc oul dc om eintoc ontact wi thhot
ga ses.
R Youc oul dc om eintoc ontact wi thother
hot, escaping operating fluids. #
Befor eopening theh ood, allo wthe
ove rheated engine tocool down. #
Inthee vent of afireint he engine com‐
partment, keep theh ood closed and call
th ef ires ervice. In
vehicles without steering wheel buttons, you
can sho wthe coolant temp eratur eonthe display
(/ page142). In
vehicles wit hsteering wheel buttons, ther eis
an analog coolant temp eratur edispla yont he
instrument clus ter's tach ome ter.
During norma ldriving and if thec oolant le velis
cor rect, thed ispla yisp ermitted torise tothef ol‐
lowing temp erature:
R Vehicles wit hfront-wheel drive: up to230°F
(1 10 °C)
R Vehicles wit hrear-wheel drive: up to248°F
(120°C) Overvie
wand operation of theo n-boa rd
compu ter( ve hicles without steering-wheel
but tons) &
WARNING Risk of distraction from infor‐
mation sy stems and communications
equipment
If yo uo perat einformation and communica‐
tio ne quipment integrated in thev ehicle when
driving, youw ill be distracted from thet raffic
situation. This could also cause youtol ose
control of thev ehicle. #
Onlyoperat ethis equipment when the
traf fics ituation permits. #
Ifyo uc anno tbes ureoft his,stop the
ve hicle whils tpaying attention toroad
and traf ficc onditions and ope rate the
equipment wit hthe vehicle stationar y. Yo
um usto bse rvet he legal requirements fort he
countr yinwhich youa recur rentl yd riving when
ope rating theo n-boar dcomputer. &
WARNING Risk of accident and injury
du ring inter vention bythes teering wheel
If yo ur eac hthrough thes teering wheel to
operat ethe adjustment knobs while driving,
yo uc oul dlose control of thev ehicle. #
Use thea djustmen tknobs onl ywhen
th ev ehicle is at astandstill. #
Do no treac hthrough thes teering wheel
while driving. Instrument clus
tera nd on-boar dcomputer 137

00C5
Re
ar wind owwiper (/ page86) Setting
thei nstrument lighting &
WARNING Risk of accident and inju ry
during inter vention bythes teering wheel
If yo ur eac hthrough thes teering wheel to
operat ethe adjustment knobs while driving,
yo uc oul dlose control of thev ehicle. #
Use thea djustmen tknobs onl ywhen
th ev ehicle is at astandstill. #
Do no treac hthrough thes teering wheel
while driving. Brightness cont
rol(ex ample: vehicle wit hsteer‐
ing-wheel buttons)
The displa yson thei nstrument clus tera re illumi‐
nated during thed ay.Ad imming functio nisnot
possible in da ylight.
In vehicles wit hsteering-wheel buttons, thel ight
sensor on thei nstrument clus tera utomatically
controls theb rightness of thed ispla ylighting.
When thel ight has been switched on, theb right‐
ness cont rolisi nfluenced bythea mbient light.
Yo uc an then adjus tthe brightness of thei nstru‐
ment lighting and thed ispla ylighting as well.
Ve hicles without steering-wheel but tons: #
Press the0074or0075 button on thei nstrument
clus ter.
% Ifthe Settings menu has been selected on
th eo n-boar dcomputer ,itwill notbep ossible
to adjus tthe displa ybrightness.
Ve hicles with steering-wheel but tons: #
Turn brightness control 1onthei nstrument
clus ter. Overvie
wofmenus on theo n-boa rdcom‐
pu ter
Ve hicles without steering wheel but tons
Press theÈbutton on thei nstrument clus terto
scroll thro ugh them enus.
Yo uw ill see theSettings menu onl yifthevehicle
is stationar y.
If yo us crol lfor wa rdsint heSettings menu using
the 0078button, thes ettings fort he pr evious sub‐
men uort he previous function will be copied over.
If yo up ress the Èbutton in asubmenu, thes ub‐
menu or function will be exited without thes et‐
ting being adop ted.
Yo uc an find fur ther operating information in
"Overvie wand operation of theo n-boar dcom‐
puter" (/ page137).
Depending on thev ehicle equipment, youc an call
up thef ollowing menus, displa ysor functions:
R Displa yshowing trip dis tance and total dis‐
ta nce (/ page 142)
R Trip computer displa y(/ pag e142)
R Displ ayshowing cur rent range
R Displa yshowing cur rent fue lconsu mption
(/ page 142)
R Digital speedome ter
R Displ ayshowing coolant temp erature
(/ page142)
R Displ ayshowing displa ymessages in them es‐
sag em emor y(/pag e235)
The following menus, displa ysand function swill
also be displa yedw hen thev ehicle is stationary:
R Displa yshowing next servic edue date
(/ page175)
R Electroni cchec kont he engine oil le vel
( / pag e178)
R Tire pressur emonitoring sy stem restart
(/ page209)
R The Settings menufor adjusting or activating
and deactivating driving and driver assis tance
sy stems as well as displa yoptions
(/ page143)
Ve hicles with steering wheel but tons
Use the0059 or0065 steering-wheel button to
sho wthe menu bar and scroll thro ugh them enus.
Use the0064 or0063 steering-wheel button to
scroll thro ugh their submenus and functions. Instrument clus
tera nd on-boar dcomputer 141

Yo
uc an find fur ther operating information in
"Overvie wand operation of theo n-boar dcom‐
puter" (/ page138).
Depending on thev ehicle equipment, youc an call
up thef ollowing menus:
R Trip menu (/ page145)
R Navi menu (navigation instructions)
(/ page146)
R Audio menu (/ page147)
R Telephone menu (/page147)
R DriveAssist menu (/page 144)
R Service menu (/ page 144)
R Settings menu (/ page 148) Menu
sand submenu s(vehicles without
st eering wheel but tons) Calling up
thed istance menu Use
theb uttons on thei nstrument clus ter. #
Todispl aythed istance: press and hold the
È button until thed ispla yshows theo dome‐
te rf or thet ripd ista nce and thet otal dis‐
ta nce. #
Torese tthe trip distance: press and hold
the 0078 button until thet ripd ista nce is reset
to 0.0. Tr
ip computer menu Use
theb uttons on thei nstrument clus ter. #
Todispl ay:press theÈbutton toselect the
trip compu terd ispla y.
The values displa yedr elat etot hose meas‐
ured since thet ripc omputer waslastreset.
The following values will be displa yed:
R Distance
R Leng thof journey
R Averag efuel consum ption
R Averag espeed #
Torese tv alues: press and hol dthe 0078 but‐
to nu ntilallva lues ar ereset.
The trip computer will automatically be rese tif
th ev alue exceed s9999 hou rsor 99,999 mi
(99,999 km). Cur
rent fuel consum ption menu Cur
rent fue lconsu mptionm enu (e xamp le)
1 Recuperation display
2 Current fuel consum ption #
Press theÈbutton toselect thef uel con‐
sum ption bar displa y.
Re cuperation display 1showswhe ther and, if
so, ho wmuchk inetic energy is being transformed
int oe lectric cur rent whil stthev ehicle is coasting.
The recuperated energy is then stored in the
st ar terb atter y.Re cuperation display 1is
dependent on thee ngine ins talled and is there‐
fo re nota vailable in all vehicles. Coolant
temperatur emenu &
WARNING Risk of bu rnsw hen opening
th eh ood
If yo uo pen theh ood when thee ngine has
ove rheated or when ther eisaf ireint he
engine compartment, thef ollowing situations
ma yoccur:
R Youc oul dc om eintoc ontact wi thhot
ga ses.
R Youc oul dc om eintoc ontact wi thother
hot, escaping operating fluids. #
Befor eopening theh ood, allo wthe
ove rheated engine tocool down. #
Inthee vent of afireint he engine com‐
partment, keep theh ood closed and call
th ef ires ervice. Use
theb uttons on thei nstrument clus ter. #
Press theÈbutton toselect thec oolant
te mp eratur ebar display 00AC.
During normal driving and if thec oolant le vel
is cor rect, thed ispla yisp ermitted torise to
th el etter H. 14 2
Instrument clus tera nd on-boar dcomputer

Note
sonl oading guidelines &
DANG ER Risk of poisonin gfrome xhau st
ga ses
Combustion engines emit poisonous exhaust
ga ses, suc hascarbon monoxide. Exhaust
ga ses can enter thev ehicle interior if thet ail‐
gate orther ear-end door is open when the
engine is running ,especial lyifth ev ehicle is
in motion. #
Alwayss witc hoffthee ngine before
opening thet ailgat eortherear-end
door. #
Neverd rive thev ehicle when thet ail‐
ga te or rear-en ddoor is open. &
WARNING Risk of inju ryfrom unsecu red
object sinthevehicle
When objects ar eunsecured or inadequately
secured, they can slip, tip overorbet hrown
about, striking vehicle occupants.
This also appliest o:
R Luggag eorl oads
R Seats whic hhave been remo veda nd are
being transpor tedint hevehicle in an
ex ceptiona lcase
The reisar isk of injur y,particular lyin the
eve nt of braking maneuver sorabrupt
ch anges in direction. #
Alwayss towo bjectsins uchaw aythat
th ey canno tbetossed about. #
Befor etrave ling, secur eobjects, lug‐
ga ge or load topreve ntthem slipping or
tipping over. #
When aseat is remo ved, keep it prefera‐
bly outside thev ehicle. &
WARNING Risk of accident du etoincor‐
re ctly positioned load
The center of gr avity of thel oad can be too
high and/or toof ar towa rdst he rear.
This can significantl yimp air handlin gaswell
as steering and braking characteristics. #
Alwaysm akes uret hat thec enter of
gr av ity of thel oad is between thea xles
and as lo waspossible near ther ear
axle. &
WARNING Risk of accident du eto
exc eeding thep ermissible wheel/axle
loads or theg ross vehicle weight
The driving characteristics, as well as steering
and braking, ma ybegreatl yimp aired. Over‐
loaded tires ma yoverheat and bur stas ac on‐
sequence. #
When transpo rting aload, alw ays
obser vethep ermissible wheel loads,
axle loads and them aximum permissi‐
ble gross mass fort he vehicle (including
occupants). &
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. *
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. If
yo ua reusin gar oof luggag erack, please no te
th em aximum roof load and them aximum load
capacity of ther oof luggag erack( / pag e234).
The handling characteristic sofyourvehicle are
dependent on thel oad distribution.
Therefore, please obser vethef ollowing no tes
when loading:
R The load mus tnotprotru de abo vetheu pper
edg eoft he seat backrests.
R If possible, alw ayst ranspor tthe load in the
cargo compa rtment.
R fastenthel oad tothet ie-down eyes and dis‐
tribut ethe load evenl yamong them. 16 6
Transporting

Information on
regular maintenance work *
NO
TEPrematur ewear thro ugh failur eto
obser veservice due dates Maintenance
workwhic hisn otcar ried out at
th er ight time or incomple tely ca nleadto
inc reased wear and damag etothevehicle. #
Adher etot he prescribed service inter‐
va ls. #
Alwaysh ave thep rescribed mainte‐
nanc eworkc arried out at aqualified
specialis tworks hop. Note
sons pecial service requ irements The prescribed service inter
valisb ased on nor‐
mal vehicle use. Maintenance workwill need to
be per form ed mor eoften than presc ribed if the
ve hicle is operated under arduous operating con‐
ditions or increased loads.
Arduous operating conditions include:
R Regular city driving wit hfrequ ent intermedi‐
at es tops
R Frequent short-dis tance driving
R Frequent operation in mountainous terrain or
on poor road sur faces
R Whe nthe engine is of tenl eftidling forl ong
periods
R Operation in particula rlyd usty conditions
and/o rifair-reci rculation mod eisfrequ ent ly
used
In these or similar operating conditions, ha vethe
air filter ,engin eoil and oil filter ,for example,
re placed mor efrequ entl y.
If th ev ehicle is subjected toinc reased loads, the
tires mu stbe checkedm oref requ ently.Yo uc an
obtain fur ther information at aqualified specialist
wo rkshop. No
n-operational times with theb attery dis‐
connected The ASS
YSTP LUSs ervice inter vald ispla ycan
onl ycalculat ethe service due dat ewhen theb at‐
te ry is connec ted. #
Displa yand no tedown thes ervice due date
on thei nstrument clus terb efor edisconnect‐
ing theb atter y. R
Displ aying thes ervice due dat einvehi‐
cles without steering wheel buttons
(/ page175).
R Displ aying thes ervice due dat einvehi‐
cles wit hsteering wheel buttons
(/ page175). Engine comp
artment Opening and closing
theh ood &
WARNING Risk of accident du etodriving
wit hthe hood unloc ked
The hood ma yopen and bloc kyour vie w. #
Neverrelease theh ood when driving. #
Befor eevery trip, ensur ethat theh ood
is loc ked. &
WARNING Risk of accident and injury
whe nopening and closing theh ood
The hood ma ysuddenl ydropi ntot he end
position.
Ther eisar isk of injur yfor an yone in the
hood's rang eofm ovement. #
Do no topen or close theh ood if ther eis
ap erson in theh ood's rang eofm ove‐
ment. &
WARNING Risk of inju ryfrom touching
component sunde rvoltage
The ignition sy stem and thef uel injection sys‐
te mw orku nde rhigh voltage. Youc ould
re ceiv eane lectric shoc k. #
Nevertouc hcomponent softhe ignition
sy stem or thef uel injection sy stem
when thei gnition is switched on. The
following ar eexamp les of liv ecomponents:
R Ignitio ncoils
R Spar kplug connec tors
R Injectors &
WARNING Risk of bu rnsf romh otcom‐
ponent parts in thee ngine compartment
Cer tainc omponent pa rtsint he engine com‐
partment can be very hot, e.g. thee ngine, the
cooler and pa rtsoft heexhaus tsystem. 176
Maintenance and care

Engine oil
Checking
thee ngine oil le velw itht he on-
boa rdcompu ter( ve hicl ewithout steering-
wheel but tons)
Re quirements:
R The vehicle is equipped wit hanoil levels en‐
sor (vehicles wit hrear-wheel drive).
R The vehicle is le veld uring them easuring
process.
R The engine is switched of fatnormal operat‐
ing temp erature.
R Awaitin gperiod of five minutes is obser ved.
R The ignition is switched on.
If no oil le velisd isplayeda fter five minutes at
ex tremely lo wtemperatures, repeat thee ngine oil
measurement af tera nother five minutes.
If an oil le velreading is still no tdispla yed, check
th eo il le velw itht he oil dipstic k(/ pag e179).
Ha ve thee ngine oil le velc hec kedataq ualified
specialis tworks hop.
Use theb uttons on thei nstrument clus ter. #
Press theÈ button toselect Oil Level. #
Press the0078button toconfirm.
While thee ngine oil le velm easuremen tisin
progress, thed ispla yshows the Measuring
Engine Oil Level... message.
The following messa gesm ayappear af tert he
engine oi lleve lmeasurement:
Engine Oil Level OK #
Do no trefill oil.
Add 1,0 liq.gal. Engine Oil #
Addthe specified quantity of oil
(/ page179). #
Repeat thee ngine oil measurement af tera
fe wm inutes.
Engine Oil Level: Reduce Oil Level #
Siphon of fany exc ess engine oil that has
been added. Todo so, consult aqualified spe‐
cialis tworks hop.
For Eng. Oil Level: Ignition Must Be On #
Switc hont he ignition.
Wait to Check Engine Oil Level #
Ifth ee ngine is at normal operating temp era‐
ture, repeat thee ngine oil measurement af ter
appr oximately five minutes. #
Ifth ee ngine is no tatnormal operating tem‐
perature, repeat thee ngine oil measurement
af te ra pproxima tely 30 minutes.
Engine Oil Level with Engine Off #
Switc hoffthee ngine and, when it is at nor‐
mal operating temp erature, wait appr ox‐
imatel yfivem inutes befor emeasu ring the
engine oil le vel.
Chec kthe engine oil le velw itht he on-board
comp uter (vehicle with steering-wheel but‐
to ns)
Re quirements:
R The engin eoil le velisd etermined during driv‐
ing.
R The engine is at normal operating temp era‐
ture.
R The vehicle is le veld uring them easuring
process.
R The hood is no topen.
Dependin gonthe driving profile, theo il le velc an
be displa yedo nlya fter ad riving time of up to
30 minutes and onl ywhen thei gnition is
switched on.
On-boar dcomputer:
4 Service 5
Engine Oil Level
One of thef ollowing messa gesa ppear son
th ed ispla yoft he on-boar dcompu ter:
Engin eOil Level Measuremen tinProgress... #
Measurement of theo il le veln ot ye tpossible.
Re peat theq uer yafter drivin gfor am aximum
of 30 minutes.
Engine Oil Level OK
The bar ford isplaying theo il le velont he display
is green and is between "min" and "max". #
Do no trefill oil. The engine oil le velisc orrect.
Engine Oil Leve lWarmUpE ngine #
Warm upthee ngine tooperating temp era‐
ture.
Engine Oil Level Correct Measurement Only if
Vehicle Is on Level Ground #
Park thev ehicle on alevel sur face. 17 8
Maintenance and care

Engine Oi
lLevel Add 1.0 l
The ba rfor displaying theo il le velont he display
is orang eand is belo w"min".
The oil le velist oo lo w. #
Add1 .1US qt (1 l) of engine oil
(/ page179).
Reduce Engine Oil Level
The bar ford isplaying theo il le velont he display
is orang eand is abo ve"max".
The oil le velist oo high. #
Siphon of fany exc ess engine oil that has
been added. Todo so, consult aqualified spe‐
cialis tworks hop.
For Engine Oil Level Ignition Must Be On #
Switc hthe ignition on tocheckt he engine oil
le ve l.
Engine Oil Level System Inoperative
The fill le vels ensor is defectiv eornotplugged in. #
Have theo il le veld ispla ychec kedataq uali‐
fi ed specialis tworks hop.
Engine Oil Level System Currently Unavail. #
Close theh ood.
% Ve
hicles wit hcold oil le veld isplay: af tert he
ve hicle has been out of use forane xtended
time ,the oil le velw ill automaticall ybeshown
on thed ispla y.If it is no tpossible tomeasu re
th ee ngine oil le vel,am essag etothat ef fect
will appea r.
Checking thee ngine oil le velw ithad ipst ick &
WARNING Risk of bu rnsf romh otcom‐
ponent parts in thee ngine compartment
Cer tainc omponent pa rtsint he engine com‐
partment can be very hot, e.g. thee ngine, the
cooler and pa rtsoft heexhaus tsystem. #
Allowthe engine tocool down and only
to uc hc omponent parts desc ribed in the
fo llowing. The engin
eoil becomes dirty during operation,
loses quality and also graduall yloses volume.
Chec kthe oil le velregularly and add oil or ha veit
ch anged if necessar y.
Re gular lych eckt he fluid le vela nd them ajor
assemblies forl ea ks.Ify ou de tect fluid loss ,for
ex ample, oil drops on thev ehicle parking space, consult
aqualified specialis tworks hop as quickly
as possible. #
Onlychec kthe oil le velw hen thee ngine is at
normal operating temp erature. Oil dipstic
kand engine oil filler openin g(example:
ga soline engine) #
Pull oil dipstick 1out of thed ipstic ktube. #
Wipe theo il dipstick 1using alint-free
clo th. #
Inser tthe oil dipstick 1bac kintot he guide
tube as farasitw illgoa nd pullito ut again.
If th el eve lisb etwe en MIN mark 3and MAX
mark 2,the oil le velisa dequate. #
Ifth eo il le velh as dropped toor belo wmini‐
mum mark 3,open cap 4and add engine
oil (/ page179).
The di fference in quantity between mar ks2 and
3 is appr oximatel y1.6 US qt (1.5 liters) in the
case of gasoline engines.
Ad ding engin eoil &
WARNING Risk offire and injur yfrom
engine oil
If engine oil comes int ocontact wit hhotcom‐
ponent parts in thee ngine compartment, it
ma yignite. #
Mak esuret hat no engine oil is spilled
next tothef iller opening. #
Allowthe engine tocool of fand thor‐
oughly clean thee ngine oil from compo‐
nent parts befor estartin gt he vehicle. Maintenance and care
17 9

&
WARNING Risk of bu rnsf romh otcom‐
ponent parts in thee ngine compartment
Cer tainc omponent pa rtsint he engine com‐
partment can be very hot, e.g. thee ngine, the
cooler and pa rtsoft heexhaus tsystem. #
Allowthe engine tocool down and only
to uc hc omponent parts desc ribed in the
fo llowing. *
NO
TEDama gecaused byrefilling too
muc hengine oil To
om uche ngine oil can damag ethe engine
or thec atalytic con verter. #
Have excess engine oil remo vedata
qu alified specialis tworks hop. *
NO
TEEngine damag eduetouse of addi‐
tives in thee ngine oil The use of additional additives in
thee ngine
oil can damag ethe engine. #
Do no tuse an yadditional additives in
th ee ngine oil. +
ENVIRONMEN
TALN OTE Environmental
damag ecaused byspilling oil when refill‐
ing Damag
eiscaused tothee nvironmen tifspil‐
led oil enter sthe soil. #
When refilling oil, mak esuren oneis
spilled. Example: engin
eoilfiller opening #
Obser vethei nformation rega rding appr oved
engine oil under "Operating fluids and capaci‐
ties" (/ page228). #
Unscr ewand remo vecap 1. #
Refill engin eoil. #
Place cap 1onthef iller openin gand
tigh ten.
Whe ndoing so, mak esuret hat thec ap
engages cor rectly. #
If present, checkt he oil le velu sing theo il dip‐
st ick( / pag e179). #
Inthec ase of vehicles without an oil dipstic k,
ch eckt he oil le velw itht he on-boar dcom‐
puter af tert he next journe y(/ pag e178).
It is necessa ryto runt he engine forane xtended
perio dafter eac hoilre fill to cor rectly de tect the
oil le vel. Fill le velc hanges during oil refills may
no tbei mmediately visible. Depending on the
driving profile, then ew oil le velc an onl ybedis‐
pla yeda fter ad riving time of up to60 minutes.
If necessa ry,o nlyr efill theq uantity of oil shown
in thei nstrument clus terd ispla yand checkt he
oil le vela ga in af tert he next journe y. Checking/adding coolant
&
WARNING ‑Riskoff irea nd injur yfrom
antifreeze
If antifreez ecomes int ocontact wi thhotc om‐
ponent parts in thee ngine compartment, it
ma yignite. #
Allowthe engine tocool down before
adding antif reeze. #
Mak esuret hat no antifreeze spills out
next tothef iller opening. #
Thoroughl yclean of fany antifreeze from
componen tparts befor estartin gt he
ve hicle. &
WARNING Risk of scalding from hot
coolant
If yo uo pen thec ap, youc oul dbes calded. #
Letthe mo torc ool down befor eopening
th ec ap. #
When opening thec ap, wear pr otective
gl ove sand saf etyg lasses. #
Open thec ap slowl ytorelease pres‐
sure. 18 0
Maintenance and care