2021 MERCEDES-BENZ METRIS overheating

Re
quirements:
R The ignition is switched on or thed oor is
open. #
Toadjus tthe height: slide button 1up or
down in thed irection of thea rrow. #
Tomo veforw ards: pullthe head restra int
fo rw ards until it engages in thed esired posi‐
tion. #
Tomo vebackwards: press and hold down
re lease knob 2and slide theh ead restra int
backwards tothed esired position.
% If
th ei gnition is no tswitched on, youc an
adjus tthe head restra int height within 30
seconds of unlockin gthe vehicle. Switching
thes eat heating on/off &
WARNING Risk of bu rnsd ue torepeat‐
edly switching on thes eat heating
Re peatedly switching on thes eat heating can
cause thes eat cushion and seat backrest
padding tobecome very hot.
In particular ,the healt hofpersons wit hlimi‐
te dt emperatur esensitivity or alimited ability
to react tohigh temp eratures ma ybeaffec‐
te dort heym ayeven suf ferb urn-lik einjuries. #
Do no trepeatedl yswitc hont he seat
heating. To
protect agains toverheating, thes eat heating
ma ybet emporaril ydeactivated af teritis
switched on repeatedly.
* NO
TEDama getothes eat heating due to
ove rheating The seat heating ma
yoverheat if thes eat is
unoccupied when thes eat heating is
switched on or if object sareplaced on the
seat. #
Switc hoffthes eat heating when the
seat is unoccupied. #
Do no tplace an yobjects on thes eat
when thes eat is unoccupied. Re
quirements:
R The po wersupp lyhas been switched on. Fr
ont seat #
Toswitc hon/increase thel evel: press but‐
ton 1repeatedly until thed esired heating
le ve liss et.
Depending on theh eating le vel, one tothree
indicator lamps will light up. #
Toswitc hoff/reduce thel evel: press but‐
ton 1repeatedly until thed esired heating
le ve liss et.
When all indicator lamps ar eoff,t he seat
heating is switched off.
% The seat heating will automaticall
yswitch
bac kout of thet hree heating le vels af ter7,
10 and 20 minutes until thes eat heating
switches off. 74
Seats and stowage

Information on brakes
&
WARNING Risk of accident du etothe
brak esystem overheating
If yo ul eave your foot on theb rake pedal
when driving, theb rake system ma yoverheat.
This increases theb raking dis tance and the
brak esystemm ayeve nfail. #
Neveru se theb rake pedal as afootrest. #
Do no tdepress theb rake pedal and the
accelerator pedal at thes ame time
while driving. *
NO
TEWearing out theb rake linings by
continuously dep ressing theb rake pedal #
Do no tdepress theb rake pedal continu‐
ously whils tdriving. #
Touse theb raking ef fect of thee ngine,
shif ttoa lowe rgear in good time. Downhillg
radients
On long and steep downhill gradients yous hould
obse rvet he following instructions:
R invehicles wit hanautomatic transmission,
shif tdow ntos hiftranges 2or 1in good time
so that thee ngine is running at amediu mto
high engine speed (/ page106).
% Chang
ethe shif trang eing oodt ime when
cruise control is acti vated. Obser vethed riv‐
ing tips (/ page98).
Yo ut hereb ymakeu se of theb raking ef fect of the
engine and do no thave tobrak easo ften tomain‐
tai nt he speed. This relie vest he load on the
service brak eand pr events theb rake sf romo ver‐
heating and wearing tooq uickl y.
Heavy and light loads
If th eb rake sh ave been subjected toah eavy
load, do no tstopt he vehicle immediatel y.Drive
on foras hortwhile. The brakes cool down more
qu ickl yint he air flow.
If th eb rake sh ave been used onl ymoderately,
yo us houl doccasionall ytesttheir ef fectiveness.
To do this, brak emoref irml yfromah igherspeed
whil epaying attention tothet raffic conditions.
Th eb rake sw illg ripb ette rasar esult.
We troad sur faces
If yo uh ave been driving foral ong time in heavy
ra in without braking, ther em aybe adelayed
re sponse when youf irst apply theb rake s. This ma
yalso occur af terd riving thro ugh acarwa sh
or deep water.Yo um ustd epress theb rake pedal
mor efirml y.Maintai nagreater di stanc etot he
ve hicle in front.
While paying attention tothet raffic conditions,
yo us houl dbrake thev ehicle firm lyafte rd riving
on aw etroad sur face or thro ugh acarwa sh. This
heats theb rake discs so that they drym ore
qu ickl y,whic hprotects them agains tcorrosion.
Limited braking ef fect on salt-trea tedr oads:
R alayer of salt on theb rake discs or brakepads
can increase braking dis tances considerab ly,
or braking ma yhappen on onl yone side
R maintain an especiall ylarg esafed ista nce to
th ev ehicle in front
To remo vethel ayer of salt:
R appl ythe brakes from time totime ,paying
attention totraf ficc onditions
R carefully dep ress theb rake pedal at thee nd
of ajourne yand af tert he star tofan ewjour‐
ney
Checking theb rake pa dt hickness
In addition tomonitoring using theb rake pad wear
sensor ,regularly monitor and checka ll of the
brakepads byper form ing avisual inspection to
look form aterial wear on thep ads.
If yo ua reunabl etoc heckthe brakepad wear on
th ei nside of thew heels, remo vethew heels if
yo up ossess ther equired skills, or visit aqualified
specialis tworks hop.
If th eb rake pad material thickness is less than
0. 12 in (3 mm), ha vetheb rake pads checkeda nd
re placed at aqualified specialis tworks hop, if
necessar y.
Do no tsolely rely on theb rake pad wear sensor.
It is also strongly re commended that youh ave
th eb rake pads checkedataq ualified specialist
wo rkshop, no tonly at everyservice displa yedby
th em aintenanc einter vald ispla y,but also prior to
long journe ysand when everthe wheels are
re mo ved.
Chec kthe brakepads in thef ollowing cases:
R Ateve ryservice according tothem ainte‐
nanc einter val
R Befor elong journe ys
R Ateve rytirec hange
R Regular visual inspection fory our owns afety 100
Driving and pa rking

shop. This also applies
tocollisions at slow
speeds whe rether eisnov isible damag etothe
front end of thev ehicle. Setting
Activ eB rake Assi st On-boar
dcomputer:
4 DriveAssist 5
Active Brake Assist #
Select thed esired setting fort he warning/
re action tim eand press the0076 button.
The setting is retained when thev ehicle is
next star ted.
Deactivating Activ eB rake Assi st
% It is
recommended that ActiveB rake Assi stis
alw aysl efta ctivated. #
Select Offand press the0076 button.
The dis tance warning function and thea uton‐
omous braking function ar edeactivated. Also,
th es tatus appear sintheStatus overvie wof
the DriveAssist menu.
The next time thev ehicle is star ted, Ac tiveB rake
Assi stis automaticall yactivated wit hthe Medium
setting.
When ActiveB rake Assi stis activated, them ulti‐
function displa yshows the 00C7symbol.
At speeds up toappr oximately 20 mph
(30 km/h), them ultifunction displa yinvehicles
wit hA ctiv eParking Assis tfirst sho wsthe 005Dsta‐
tus indicator .Onlyf romas peed of appr oximately
20 mph(30 km/h) does them ultifunction display
sho wthe 005D symbol ins tead of the00C7 status
indicator. Cruise control
Fu
nction of cruise control
Cruise cont rola ccelerates and brakes thev ehicle
automaticall yinorder tomaintain apreviously
st ored speed.
If yo ua ccelerat etoovertake, fore xamp le,the
st ored speed is no tdele ted. If your emo veyour
fo ot from thea ccelerator pedal af tero vertaking,
cruise control will resume speed regulation back
to thes tore ds peed.
Yo uo perat ecruise control usin gthe cruise con‐
trol le ver.Yo uc an stor ea nyspeed abo ve20 mph
(30 km/h).
Obser vethen otes on driving sy stems and your
re sponsibility ,otherwise youc anno trecognize
danger s(/ page 109). Sy
stem limits
Cruise control ma ybeunable tomaintain the
st ored speed on uphill gradients. The stored
speed is resumed if theu phill gradient evens out
and thev ehicle's speed does no tfall below
20 mph(30 km/h).
On long and steep downhill gradients, yous hould
ch ang edowntoa lowe rgear in good time. Take
particular no teofthis when driving aladen vehi‐
cle. By doing so, youw ill mak euse of the
engine' sbraking ef fect. Thi swillt ak es ome of the
st ra in of fthe brak esystem and pr eventthe
brakes from overheating and wearing tooq uickl y.
If yo uc hang ewheel siz eonyourvehicle, checkit
is assigned tothec orrect wheel size catego ry
( / pag e218). If thec ategor yischanged without
re coding thec ont rolu nit sint hevehicle, thef unc‐
tionin gofcruise cont rolm aybe impaired.
Do no tuse cruise control in thef ollowing situa‐
tions:
R in traf fics ituations whe refrequent speed
ch anges ar erequired, e.g. in heavy traf ficor
on winding roads
R off-road or on con stru ction sites
R on slippe ryor slic kroads, as thed rive wheels
can lose traction when accelerating and the
ve hicle can then skid
R ifth er eisp oor visibility
Operating cruise control
Requ irements
R Cruise control is selected.
R The parkin gbrake has been released.
R ESP ®
is activated, but ma ynotinter vene.
R The driving speed is at leas t20m ph
(30 km/h).
R The brak epedal is no tdepressed. Driving and parking
11 5

*
NO
TEDama getothew heel trim from
mounted sno wchains If sno
wchains are mounted tosteel wheels,
th ew heel trims can be damaged. #
Remo vethew heel trims of steel wheels
befor emounting sno wchains. Obser
vethef ollowing no tesw hen using snow
ch ains:
R Snow ch ains ar eonlyp ermissible forc ertain
wheel/tir ecombinations .You can obtain
information on them at aqualified specialist
wo rkshop.
R Fors afet yr easons, onl yuse sn owchains that
ha ve been specifically appr ovedfor your vehi‐
cle byMercedes-Benz, or sno wchains with
th es ame quality standard.
R The sn owchains mus tberetightene dafter
driving appr oximatel y0.6 miles (1 km) .This is
th eo nlyw aytoensur ethe sno wchains are
optimall yseated wit hclearanc etoadjacent
components.
R Vehicles with rear-wheel drive: onlyins tall
sno wchains in pair sand onl yonthe rear
wheels .Obse rvet he manufacturer's ins talla‐
tion instructions.
R Vehicles with front-wheel drive: only install
sno wchains in pair sand onl yonthe front
wheels. Obser vethem anufacturer's ins talla‐
tion instructions.
R Use sno wchains only when ther oad sur face
is comple tely sno w-covered. Re mo vethe
sno wchains as soon as possiblew henyou
come toaroad that is no tsnow-covered.
R Local regulations ma yrestrict theu se of
sno wchains. Obser vethea pplicable regula‐
tions befor einstalling sno wchains.
R If sno wchains ar einstalled, them aximum
permissible speed is 30 mph(50 km/h ).
% Youc an deactivat eESP®
to pull away
( / pag e111,112 ). This all owsthew heels to
spin, achieving an increased driving forc e. Ti
re pressure Note
sont irep ressure &
WARNING Risk of accident du etoinsuf‐
fi cient or excessi vetirep ressure
Ti re sw ithe ither tool ow ortooh igh apres‐
sur epresent thef ollowing hazards:
R thet ires could bur st
R thet ires could wearexcessi vely and/or
un eve nly
R thed riving characteristic saswell as
st eering and braking characteristic smay
be se verely impaired #
Obse rvet he recommended tir epres‐
sures and checkt he tir epressur eofa ll
tires including thes par ew heel:
R monthly
R if altering thel oad on thev ehicle
R prior tolong journe ys
R ifth eo perating conditions change, for
ex ample when drivin goff-road #
Adjus tthe tir epressur ewhereneces‐
sar y. Driving wi
thtirep ressur ethat is tooh igh or too
lo wc an:
R Shor tent he service lif eofthe tires
R Cause increased tir edamage
R Adverselya ffect handling characteristic sand
th us drivin gsafet y, e.g. due to hydroplaning &
WARNING Risk of accident du etotoo
lo wat irep ressure
Ti re sw ithp ressur ethat is tool ow can over‐
heat and bur stas ac onsequence.
In addition ,the ya lso suf ferf romi rregular
we ar,w hic hc an significantl yimp air theb rak‐
ing properties and theh andling characteris‐
tics. #
Avoid excessively lo wtirep ressure. Ti
re pressur ewhichist oo lo wcan cause:
R Tire malfunctioning as aresult of overheating
R Impaired handling characteristics
R Irre gular wear
R Increased fuel consum ption 206
Wheels and tires

#
Have theb rake fluid rene we datt he
specified inter vals. *
NO
TEDama getopaint, plastic or rubber
by brak efluid Ther
eisar isk of damag etoproperty if brake
fl uid comes int ocontact wi thpaint, plastic or
ru bber. #
If paint, plastic or rubber comes into
con tact wi thbrak efluid, rinse wi th
wate rimmediatel y. Obser
vethen otes on paintwork/matt efinish
paintwor kcare( /pag e184).
Ha ve theb rake fluid rene we de very twoy ear sat
aq ualified specialis tworks hop.
Only use brak efluid appr ovedbyM ercedes-Benz
in accordance wit hMB-Freigabe or MB-Appr oval
33 1.0.
Informatio nonbrake fluid is available at thef ol‐
lowing locations:
R IntheMBS pecification sfor operating fluids
33 1.0
- Athttps://be vo.mercedes-benz.com
- IntheB eVoa pp
R Ataq ualified specialis tworks hop Coolant
Note
sonc oolant
Obser vethen otes on operating fluids
(/ page227). &
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. *
NO
TEDama gecaused byincor rect cool‐
ant #
Only ad dcoolant that has been pre‐
mixed wit hthe requ ired antifreeze pro‐
te ction. Information on coolant is
available at thef ollow‐
ing locations:
R IntheMBS pecification sfor operating fluids
320.1
- Athttps://be vo.mercedes-benz.com
- IntheB eVoa pp
R Ataq ualified specialis tworks hop
* NO
TEOverheating at high outsid etem‐
peratures If an inappropriat
ecoolant is used, thee ngine
cooling sy stem is no tsufficiently pr otected
agains toverheating and cor rosion at high out‐
side temp eratures. #
Alwaysu se coolant appr ovedby
Mercedes-Benz. #
Obser vethei nstruction sinthe MB
Specifications foro perating fluids320 .1 . *
NO
TEPaint wo rkdamag eduetocoolant #
Do no tspill coolant on painted sur fa‐
ces. Ha
ve thec oolant regularly replaced at aqualified
specialis tworks hop.
No tethep roportion of anti-cor rosion agent/anti‐
freeze in thee ngine cooling sy stem within thef ol‐
lowing temp eratur eranges:
R Atleas t50% (antifreeze pr otection up to
about -35°F (-37°C))
R Maximum 55 %(antifreez eprotection up to
-49°F (-45°C))
Coolant capacities
Coolant capacity Mode
lC apacity
All model sA pprox.11USqt
(10.4 l) 230
Tech nica ldata