AUX MERCEDES-BENZ METRIS 2021 MY21 Operator's Manual

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

Sea
tbase( example: right-han dfront seat)
The following description on connectin gand
ins talling theb atter yuses thee xamp le ofthe
st ar terb atter yint he seat base of ther ight-ha nd
front seat.
The auxiliar ybatter yisd isconnected and
re mo vedint he same wayast hestar terb atter y.
The auxiliar ybatter yislocated in thes eat base of
th el eft-hand front seat. #
Switc hoffall electrical consumers. #
Switc hoffthee ngine and remo vethek ey
from thei gnition loc k. #
Open thef ront right-han ddoor. #
Press bo thcatc hsprings 1down and
re mo vecover 2upwards from thes eat
base. #
Remo vecover 2bypulling upwards at an
angle from thes eat base. Open seat base (e
xamp le:right-han dfront seat) #
Remo vescr ews 5from holder 6. #
Remo veholder 6. #
Remo ve ve nt hose 4from thet op of theb at‐
te ry. #
Pull theb atter yout of thes eat base until the
negati ve terminal clam pcan be released and
re mo ved. #
Disconnect then egativ eterminal clam pfrom
negativ eterminal 3. #
Remo vethen egativ eterminal clam pinsucha
wa ythat theb atter yterminal clam pnolonger
to uches negativ eterminal 3. Example:
star terb attery #
Remo vetheb atter yfromt he seat base and
place it on thed oor sill as shown. If neces‐
sar y,hold theb atter ybyh andles 9. #
Remo vethep ositiv eterminal clam pcover
from positiv eterminal 7. #
Remo vepositiv eterminal clamp 8from pos‐
itiv eterminal 7. #
Remo vepositiv eterminal clamp 8in suc ha
wa ythat theb atter yclam pnol onger touches
positiv eterminal 7. #
Liftthe batter yout of thed oor sill byhandles
9. Connecting and installing
thes tar terb attery &
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. Breakdown assis
tance 19 5

#
Do no tconnect or disconnect theb at‐
te ry cla mp sw hile thee ngine is running. *
NO
TEDama getotheo n-boar delectron‐
ics due tointer changing theb attery
clamps Incor
rectly connecting theb atter ycan dam‐
ag et he on-boar delectronics. #
Alwaysc onnectt he batter yasdescri‐
bed in thef ollowing sequence. Ne ver
re ve rset he term inal clamps. The
following description on connectin gand
ins talling theb atter yuses thee xamp le ofthe
st ar terb atter yint he seat base of ther ight-ha nd
front seat.
The auxiliar ybatter yisc onnected and ins talled in
th es ame wayast hestar terb atter y.The auxiliary
batter yislocated in thes eat base of thel eft-
hand front seat. Example:
star terb attery #
Place theb atter yont he door sill as shown
and secur ewithh andles 3if necessar y. #
Connec tpositiv eterminal clamp 2toposi‐
tiv et erminal 1.The positiv elead mus tbe
ro uted parallel tothes ide of theb atter yhous‐
ing in thec onnection area, as shown. #
Place thep ositiv eterminal clam pcover on
positiv eterminal 1. #
Fold bo thhandles 3down ont othe batter y. #
Push theb atter yintot he seat base until the
negati ve terminal clam pcan be connec ted. #
Connec tthe negativ eterminal clam ptonega‐
tiv et erminal 4. #
Push theb atter yintot he seat base as faras
it willg o. Open seat base wit
hinstalled batter y(example:
ri ght-han dfront seat) #
Connect vent hose 5totheb atter yconnec‐
tion at thet op, beside negativ eterminal 4. #
Place holder 7over thel owe redgeoft he
batter yhousing and thet hreadedh olesfor
scr ews 6. #
Screw on holder 7withs crews 6.
The batter yissecured topreve nt slipping. Sea
tbase( example: right-han dfront seat) #
Inser tcover 9 in front of theb atter ycom‐
partmen tdow nintot he seat base and close
it.
Catc hsprings 8of co ver9should engage
audibly.
Car ryout thef ollowing workafte rc onnecting the
battery: #
Resetthe side windo ws (/pag e58). #
Resetthe outside mir rors ( / pag e88). #
Resetthe electric sliding door s(/pag e50). 19 6
Breakdown assis tance

re
placed wit hastandar dwheel as soon
as possible. #
Neverins tall mor ethan one emergency
spar ewheel. #
When operating your vehicle wit hthe
emergency spar ewheel ins talled, adapt
yo ur drivin gstyle acco rdingly and drive
carefully. #
Do no tswitc hoffESP ®
. #
Sno wchains mus tnotbe ins talled on
th ee mer gency spa rewheel. #
Replace thee mer gency spa rewheel
af te ram aximu mofs ixyears, rega rd‐
less of wear. R
When usin ganemergency spa rewheel
(whic hisd iffe re nt from thew heel tobe
re placed) atop speed of 50 mph(80 km/h)
mus tnotbe exc eeded.
R The tir epressur eoft he emergency spare
whee lmustbec heckedb efor estartin gaj our‐
ne y.
R Have thee mer gency spa rewheel replaced by
aq ualified specialis tworks hop.
The following should be checkedr egular ly,p artic‐
ular lyprior tolong journe ys:
R thes ecur epositioning of thes par etire
R thet irep ressur eoft he spar ewheel (adjust
th et irep ressur eifn ecessary) (/ page207)
R thef astenings of thes par ew heel brac ket
The spar ewheel is located either on thel eftin
th er ear compartment or in aspar ew heel brac ket
unde rthe vehicle.
Re place thet ires af ters ixyearsatt he latest,
re ga rdless of wear.T his also applies tothes pare
wheel.
% If
yo uh ave installed an emer gency spa re
wheel or spar ewheel, thet irep ressur emoni‐
to rw illn ot function fort his wheel.T he emer‐
ge ncy spa rewheel or spar ewheel is not
equipped wit hasensor form onitoring tire
pressu re. Installing/removing
thes pare wheel Re
moving the spar ewheel in the rear com‐
partment #
Take auxiliar ytool 3and lug wrench 2out
of thev ehicle tool kit . #
Open thet ailgate/rear-en ddoor. #
Attach auxiliar ytool 3tolug wrench 2. #
Unscr ewtheb olt in them iddle of thew heel
wit hlug wrench 2and attached auxiliary
to ol 3. #
Remo vespar ewheel brac ket4. #
Remo vethew heel from spar ewheel brac ket
1 .
Installin gthe spar ewheel in ther ear com‐
partment #
Take auxiliar ytool 3and lug wrench 2out
of thev ehicle tool kit . #
Place thew heel ont ospar ew heel brac ket1
in thew heel ar ch. #
Screw ontheb olt along wit hspar ew heel
brac ket4.Todos o, use lug wrench 2with
attached auxiliar ytool 3. #
Tighten theb olt using lug wrench 2and
attached auxiliar ytool 3. #
Stow auxiliar ytool 3and lug wrench 2in
th ev ehicle tool kit. #
Close thet ailgate/rear-en ddoor. Wheels and tires
223

Re
moving the spar ewheel unde rthe rear of
th ev ehicle #
Take thel ug wrenc hand auxiliar ytool fort he
spar ewheel lif tero ut of thev ehicle tool kit
(/ page202). #
Open thet ailgate/rear-en ddoor. #
Carefull ypryoffc over cap 1withas uitable
to ol, e.g. ascrew driver .Bec areful no tto
damag ethe paintwor korthe co vering cap
when doing so. #
Push auxilia rytool 2 thro ugh theo pening
int ot he winc hguide. #
Attach lug wrench 3toauxiliar ytool 2for
th es par ew heel lif ter. #
Turn lug wrench 3inthed irection of ar row
5 until youf eel resis tance or unti lthe fric‐
tion clutc hofthe winc hoverw inds.
The spar ewheel is lo wered. #
Pull thes par ew heel out from under thev ehi‐
cle. #
Press cable 6down wardsa nd hold spring
8 at an angle agains twheel gripper 7.
Wheel gripper 7isreleased. #
Pull wheel gripper 7out of thew heel brace.
Installing thes pare wheel under ther ear of
th ev ehicle
% All
oy wheels canno tbetranspor tedu nder the
ve hicle. In this case, transpor tthe alloy
wheel in thec argo compartment, and only
tur nupc able6. #
Take lug wrench 3and auxiliar ytool 2for
th es par ew heel lif tero ut of thev ehicle tool
kit (/ page202). #
Place thew heel on theg round wit hthe wheel
brace pointing upwards. #
Guide wheel gripper 7at an angle on wire
6 from abo veintot he wheel brace. #
Slide thew heel under thev ehicle alittle. #
Attach lug wrench 3toauxiliar ytool 2for
th es par ew heel lif ter. #
Turn lug wrench 3inthed irection of ar row
4 until youf eel resis tance and thef riction
clutc hoft he winc hoverw inds in jer ks.
The wheel is firm lysecured totheu nderside
of thev ehicle. #
Pull lug wrench 3and auxiliar ytool 2for
th es par ew heel lif tero ut of theo pening for
th ew inch. #
Close thew incho pening wit hcove ring cap
1. #
Stow lug wrench 3and auxiliar ytool 2for
th es par ew heel lif terint hevehicle tool kit. #
Close thet ailgate/rear-en ddoor. 224
Wheels and tires

Displa
ymessages
Possible causes/consequences and 0050 0050Solutions &
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. #
Stop thev ehicle immediately in accordance wit hthe traf ficc on‐
ditions. #
Secu rethev ehicle agains trolling away. #
Close theh ood.
003D
or
0051 *I
na ddit ion, awarning tone sounds du ring thet rip.
The displa yshows theo pen door or doors. #
Close all thed oors.
00B2
Check Washer Fluid *T
hewasher fluid le velint hewasher fluid reser voir has dropped
belo wthe minimum. #
Addw ashe rfluid (/ page181).
00CC
0091
Pwr .Steerin gMalfunct. *A
warning tone also sounds. The steering po werassi stanc ecould be
malfunctioning. Youm aynee dtos teer mor eforcefully. #
Carefully continue toaq ualified specialis tworks hop and ha ve
th es teering checkedi mmediatel y.
00CC Power Steering Malfunc-
tion See Oper. Manual *A
warning tone also sounds. The po werassi stanc efor thes teering
could be malfunctioning. Youm aynee dtos teer mor eforcefully. #
Carefully continue toaq ualified specialis tworks hop and ha ve
th es teering checkedi mmediatel y.
Phone No Service *Y
our vehicle is outside thet ransmission and receiver rang eoft he
mobile phone networ kprovide r.
Shif tto' P' or 'N' to Start
Engine *
Yo uh ave attem pted tostar tt he engine in transmission position 005E
or 005B. #
Shif tthe transmission toposition 005Dor005C.
Auxiliary Battery Mal-
function *T
he auxiliary batteryfor thet ransmission is no longer being
ch arge d. #
Consult aqualified specialis tworks hop. 258
Displa ymessages and warning and indicator lamps

Non-
operational times wit hthe
batter ydisconnec ted.......................... 176
Re gular maintenance work................. 176
Special service requirements.............. 176
ATA (Anti-Thef tAlarms ystem)
Ac tivating and deacti vating the
interior motion sensor.......................... 61
Fu nction............................................... 59
Interio rmotions ensor functio n............ 60
St opping thea larm............................... 60
Switching thet ow -awa ya larmon
and off................................................. .60
To w- aw ay alar mfunction...................... 60
At tachments............................................ .14
AT TENTION ASSI ST
Fu nction............................................. 127
Switching on/of f(ve hicle swith
st eering-wheel buttons)......................1 28
Switching on/of f(ve hicles without
st eering-wheel buttons)......................1 28
Sy stem limitations.............................. 127
Au dio sy stem (on-boa rdcompu ter)...... 147
Au thorized workshop
see Qualified specialis tworks hop
Au tomatic distanc econtrol
se eA ctiv eDista nce Assi stDISTRONIC
Au tomatic drivin glights .......................... 77
Au tomatic fron tpassen gerfront air‐
bag shu toff
Fu nctio noft he automatic front
passenger front airbag shutoff............. 30
PA SSENGER AIR BAGi ndicator lamp... .31
Au tomatic fron tpassen gerfront air‐
bag shu toff
see Automatic front passenger
front airbag shutoff
Au tomatic measures af terana cci‐
dent........................................................... 33
Au tomatic transmission
DIRECT SELEC Tleve r........................ .104
Engaging driv eposition...................... 105
Engaging neutral................................ 105
Engaging reve rseg ear....................... .105
Kickdown............................................ 106
Re stricting thes hiftrange................. .106
Selecting par kposition.......................1 05
Tr ansmission position displa y............. 104
Tr ansmission position s.......................104
Axl eload................................................ .226 B
Bac ksupport
see Lumbar suppor t(4-w ay)
Backin gupwarningdevice
No tes.................................................. 121
BA S(Brak eAssis tSystem).................... .111
Battery Care.................................................... 191
Charging............................................. 191
Chargin gavehicle batter y.................. 191
Connecting and ins talling thea uxil‐
iar yb attery.........................................1 95
Connecting and ins talling the
st ar terb attery.................................... 19 5
Disconnecting and removing the
auxiliar ybatte ry .................................. 194
Disconnecting and removing the
st ar terb attery.................................... 194
Jump-s tarting (vehicle)........................ 191
Ke y...................................................... .43
No tes( vehicle)................................... 189
Belt see Sea tbelt
Bel twarning
see Sea tbelt
Blind Spo tAssist
Fu nction............................................. 12 9
Switching on/of f................................ 12 9
Sy stem limitations.............................. 12 9
Blue tooth ®
audio
Information........................................ .163
Blue tooth ®
settings (multimedia
sy stem).................................................. .153
Bottle holder............................................. 75
Brake ABS (Anti-loc kBraking Sy stem)........... 111
Ac tivating/deactivating theH OLD
function.............................................. 121
Ac tiveB rake Assi st............................. 11 3
BA S(Brak eAssistSystem).................. 111
Braking wi thparkin gbrake :................1 00
Breaking-in no tes................................. 97
Downhil lgradien t............................... 100
Driving no tes................................ 98, 100
EBD (electroni cbrake forc ed istri‐
bution)................................................ 11 3
Heavy and light loads........................ .100
HOLD function................................... .121
Ne wb rake discs and brak epads/
linings................................................. 100 Index
271