2021 MERCEDES-BENZ METRIS MY21 Operator's Manual

traile
rload. If either thev ehicle or thet railer is
fully laden, thep ermitted gross vehicle weight or
th ep ermitted trailer load values ar ereduced
accordingly .Inthis case, youm ayonly partially
load thet railer or thev ehicle.
The gross trailer weight (G TW)isc alculated by
addin gthe weight of thet railer tothew eight of
its load and equipment. If thet railer is equipped
wit has eparat ebraking sy stem, thep ermissible
gross trailer weight is 5,00 0lbs (2,26 8kg).
The maximum dr awbar tongu eweight on theb all
head (TWR) is 500 lbs (22 7kg). Ho wever,the
actual tongu eweight mus tnotexc eed thev alue
given on thet railer hitc hortrailer identification
plates. Wher ethe values dif fer, th el owest shall
alw aysa pply.
The gross combined weight rating (GCWR) is cal‐
culated on theb asis of theg ross trailer weight
plus theg ross vehicle weight ,including adrive r's
we ight of appr oximately 150lbs (68 kg). The
maximum permissible gross combination weight
is vehicle-specific and equipment-dependent.
When driving wit hatrailer ,you should no texceed
th em aximum permissible gross combination
we ight rating (GCWR).
The pe rmissible values, whic hmustn otbe exc ee‐
ded, can be found in your vehicle documents and
on thei dentification plates of thet railer hitch, the
traile rand thev ehicle. The values appr oved by
th em anufacturer can also be found in the" Tech‐
nical data" section. Wher ethe values dif fer, the
lo west shall alw aysa pply.
Loading thet railer
Use atongue weight that is as close as possible
to them aximum permissible tongu eweight. Do
no tu ndershoo tthe minimum permissible tongue
we ight .Otherwise, thet railer ma ybecome
de tach ed.
R Distribut ethe load overthe vehicle and the
traile rsoasn ot toexceed either them axi‐
mum permissible values fort he gross vehicle
we ight rating (GVWR )and gross traile rweight
(G TW ),th eg ross combination weight rating
(GCWR) ,orthe maximum permissible gross
axle weight rating (G AWR) and tongu eweight
(TWR) of your vehicle.
R Addthe rear axle load tothed rawbar tongue
we ight (TWR) on theb all head. This will
ensur ethat youdon ot exceed thep ermissi‐
ble gross axle weight rating (G AWR).
R Addthe vehicle load tothed rawbar tongue
we ight (TWR) on theb all head. This will ensur
ethat youdon ot exceed thep ermissi‐
ble gross vehicle weight rating (GVWR).
Che cking vehicl eand traile rweight
R Mak esuret hat thew eights of thet ow ing
ve hicle and thet railer comply wit hthe maxi‐
mum permissible values. Ha vethev ehicle/
trailer combination weighed on acalibrated
we ighing machine. The vehicle/trailer combi‐
nation comprises thet ow ing vehicle including
driver ,passenger sand load as well as the
laden trailer.
R Chec kthe maximum permissible gross axle
we ight rating of thef ront and rear axles
(GAWR), theg ross trailer weight (G TW),the
gros scombination weight rating (GCWR) and
th ed rawbar tongu eweight (TWR). Tr
aile rpower supp ly Incor
rect cabling of thec onnector plug ma yinter‐
fe re wit ho ther electronic sy stems in thev ehicle.
Mercedes-Ben ztherefor erecommends that you
ha ve thec abling of thec onnector plug car ried
out at aqualified specialis tworks hop.
Yo uc an connec taccesso ries up toam aximum of
24 0Wtot he permanent po wersupply .Don ot
ch arge atrailer batter yusingthe po wersupply.
Yo ur vehicle ma ybeequipped wit harangeof
electrica lequ ipment fort railer operation.
Depending on your trailer ,you ma yneedan
adap terf or thee lectrical connection between the
traile rand your vehicle.
The trailer soc ketofy ourvehicle is equipped with
ap ermanent po wersupply at thef actor y.
The permanent po wersupply is suppliedv ia
trailer soc ketp in4.
No tethat thet railer's permanen tpowe rsupp lyis
no ts witched of fwhen thev ehicle's on-board
electrical sy stem voltag eisl ow.This could com‐
ple tely discharg eyour vehicle's star terb atter y.
Fu rther information on thee lectrical equipment
cur rentl yins talled on your vehicle and on ins tal‐
ling thet railer electrics can be obtained at a
qu alified specialis tworks hop. Driving and parking
13 5

Note
sont he instrument clu ster an don-
board co mputer &
WARNING Risk of accident du etoan
instrumen tclus term alfunction
If th ei nstrument clus terh as failed or mal‐
functioned, youm aynotn oticer estrictions to
saf ety-re leva nt sy stem functions.
The operating saf etyofy ourvehicle ma ybe
impaired. #
Driv eonc arefull y. #
Have thev ehicle checkedi mmediately
at aq ualified specialis tworks hop. If
yo ua reuncer tain rega rding theo perational
saf etyofy ourvehicle, par kthe vehicle safel yas
soon as possible. Infor maqualified specialist
wo rkshop.
The on-boar dcomputer will sho wonly messages
and warnings from cer tain sy stems on thed is‐
pla y.Yo us houl dtherefor emakes urey our vehicle
is operating safely at all times.
Yo uc an find an overvie woft he indicator and
wa rning lamps on thei nstrument clus terin" At a
gl ance". Overvie
wofthe instrument clu ster Instrument clu
ster (vehicles without steering
wheel buttons)
1 Speedome ter
2 Multifunction display
3 Tach ome ter
4 Setthe instrument lighting, chang evalues or
settings ,scroll thro ugh lists
5 Select sasubmenu or resets values
6 Selects them enu or display Instrument clus
ter( ve hicles wit hsteering wheel
buttons)
1 Speedome ter
2 Multifunction display
3 Tach ome ter
4 Coolan ttemperatur edisplay
5 Fuel le vel
Fu elfiller flap location 007F:the fuel filler
cap is on thel eft
6 Adjusts thei nstrument lighting
Speedome ter
Ve hicles wit hsteering wheel buttons:
In vehicles wit hActiv eDista nce Assi st
DISTRONIC, ther ea reilluminated segment son
th es peedome terd ial.
These segments sho wyou what speed rang eis
av ailable:
R Variable limiter activated (/ page115 )
The segments light up from thes tart of the
scale tothes elected limit speed.
R ActiveD ista nce Assi stDISTRONI Cswitched
on (/ page 116)
On eort wosegments light up in thes aved
speed range.
R ActiveD ista nce Assi stDISTRONI Cdetects a
ve hicle in front.
The segments light up from thes peed of the
ve hicle in front up tothes ave dspeed.
Yo uc an sho wthe speed as adigital speedome ter
on thed ispla yasw ell.
If yo uc hang eyour vehicle's wheel size, checki ts
assignmen ttothe wheel size group
(/ page218). If thea ssignmen tchanges with‐
out recoding thec ont rolu nit sint hevehicle, the
speedome terw illn ot displa ythe speed accu‐
ra tely.T he cur rent vehicle speed ma ythen be
higher than thes peed shown bythes peedome‐
te r.Driving and driving sa fety sy stems ma ythen
be operationall yimp aired or ma ydetect amal‐
function and switc hthemselves off. 13 6
Instrument clus tera nd on-boar dcomputer

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

1
Èand 0078buttons
2 Multifunction display
3 0074and 0075buttons
If yo ut urnt he keytop osition 0047inthei gnition
loc k,theo n-boar dcomputer will be activated.
If yo ur emo vethek ey,then quickl yre-inser tit
and tur nittop osition0047,the on-boar dcomputer
and instrument clus terw illn ot be activated.
Yo uc an control thed ispla ymessages and set‐
tings in theo n-boar dcomputer wit hbuttons 1
and 3onthei nstrument clus ter.
Button sonthe instrumen tclust er
È Press brief
ly:
R Selects them enu or display
R Inthe Settings menu:exits the
submenu without adopting thel ast
setting and returns tothem ain
menu
È Press and hold:
R Returns tothes tanda rddispla yor
th eD ista nce menu wi thout adopt‐
ing thel asts etting
0078 Press briefl
y:
R Selects asubmenu or function
R Confirms thes elected entry onthe
lis tort he displa y,or confirms the
setting 0078
Press and hold:
R Resets thet ripd ista nce and trip
computer values
R Inthem ain menu of theSettings
menu, resets tofactor ysettings
R Inthe Settings menu,resets values
and returns tothem ain menu
00740075 R
Sets thei nstrument lighting (no tin
the Settings menu)
R Scroll thro ugh lists
R Chan gevalues or settings Overvie
wand operation of theo n-boa rd
compu ter( ve hicles with steering-wheel but‐
to ns) &
WARNING Risk of distraction from infor‐
mation sy stems and communications
equipment
If yo uo perat einformation and communica‐
tio ne quipment integ ratedint hevehicle 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. 13 8
Instrument clus tera nd on-boar dcomputer

1
Displ ay
2 Right cont rolp anel
3 Leftcontrol panel
If yo ut urnt he keytop osition 0047inthei gnition
loc k,theo n-boar dcomputer will be activated.
Yo uc an control thed ispla ysand thes ettings on
th eo n-boar dcomputer using thes teering-wheel
buttons on lef tcont rolp anel 3.
Yo uc an use thes teering-wheel buttons on right
contro lpanel 2tocontrol thef unctions of the
audio sy stem and switc honthevoice control
function of then avigation sy stem (see thes epa‐
ra te Operating Instructions).
Ste ering wheel but tons Lef
tcontrol panel on thes teering wheel
0059
0065 R
Call up them enu bar on thed is‐
play
R Select amenu
0064
0063 Press briefly
R Scroll thro ugh lists
R Select asubmenu or function
R Inthe Audio menu, open thet rack
or statio nlista nd selec tastation
or audio track
R Inthe Telephone menu, switc hto
th et elephone book and select a
name or atelephone number. Lef
tcontrol panel on thes teering wheel
0064
0063 Press and hold
R Quickl yscroll thro ugh all lists
R Inthe Audio menu, select astation
or audio trac kusingrapid scroll
R Inthe Telephone menu withthe
te lephon ebook open, star tr apid
scroll.
0076 R
Confir mdispla ymessages
R In all menus, con firm thes elected
entry onthel istort he display
R IntheA udio menu, stop thes tation
sear chfunction
R Inthe Telephone menu, switc hto
th et elephone book and star td ial‐
ing fors elected numbers
0038 Press brief
ly
R Back
R Hide displa ymessages
R Inthe Audio menu, exitth et rack
or statio nlist
R Exit thet elephone book or redial
memory
R Vehicles wit hnavigation sy stem:
switc hoffvo ice control forn aviga‐
tion (see them anufacturer's oper‐
ating instructions)
0038 Press and hold
R Call up thes tandar ddispla yint he
Trip menu Right control panel on
thes teering wheel
0061 R
Mak eora cceptacall
R Swit chtother edial memory
0076 R
Reject or end acall
R Exit thet elephone book or redial
memory
0081
0082 R
Adjus tthe volume Instrument clus
tera nd on-boar dcomputer 13 9

Righ
tcontrol pane lonthesteering wheel
00E3 R
Vehicles wit hnavigation sy stem:
switc hont hevoice control func‐
tion of then avigation sy stem (see
th em anufacturer's operating
instructions)
0063 R
Switc hthe sound on/off The audio equipment,
telephon eoperation and
vo ice control using thes teering-wheel buttons on
th er ight cont rolp anel workonl yw itha
Mercedes-Benz audio or navigation sy stem. If you
ar eu singana udio or navigatio nsystemf rom
ano ther manufacturer ,the described functions
ma yber estricted or ma ynotbe available at all. Overvie
wofwhat is shown on them ulti‐
function display
Multifunction displa y(vehicles without steer‐
ing wheel but tons) Multifunction displa
y(example)
1 Time
00B2 Cruise control (/ page115 )
2 Cons tant displ ay:o utsid etemperatur eor
speed
75 mph(120k m/h)! (for cer tain countries
only) Maximum permit teds peed exceeded
3 Displa ysection ford ispla ymessa ges, menus
and menu bar
4 Fuel le vel
Fu elfiller flap locatio nindicator 007F:the
fuel filler cap is on thel eft
5 00C5 Rear wind owwiper (/ page86)
Displa ysection 3showsthes elected menu or
submenu as well as displa ymessages. Multifunction displa
y(vehicles wit hsteering
wheel but tons) Multifunction displa
y(example)
1 Time
2 00C7 ActiveB rake Assi st (/ pag e113 )
005D ActiveP arking Assis t(/pag e125)
3 Constant display: outside temp eratur eor
speed (/ page148)
75 mph(120k m/h)! (for cer tain countries
only) Maximum permit teds peed exceeded
4 Menu bar
Outside temp eratur e(onl yifh eader A
sho ws th eadditional speedome ter)
5 Comfor tdispla y(/ pag e104)
6 Transmission position (/ page104)
7 Status area
8 Displa ysectio nfor displa ymessa ges, menus
and menu bar
9 Header
Yo uc an call up men ubar4 inthed ispla ysec‐
tion bypressing the0059 or0065 steering-wheel
button. It will automaticall ydisappear again af ter
af ew seconds.
Displa ysection 9showsthes elected menu or
submenu as well as displa ymessages.
In status area 8,the multifunction displa ycan
sho wthe status of thef ollowing driving sy stems:
00AD AT
TENTION ASSIS T(/ pag e127)
00B0 Lane
Keeping Assis t(/pag e129)
00B2 Cruise control (/
page115 ) 14 0
Instrument clus tera nd on-boar dcomputer

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