check oil MERCEDES-BENZ GLC 2021 Owners Manual

Clean
thebr ak es afte rdr iving off-r oad .If yo u
th en notice reduced braking effect or hea r
scr aping nois es,have thebr ak esy stem checked
at aqu alif ied spec ialistwo rkshop. Adaptyo ur
dr ivin gst yle to thech ang edbrakin gch aract eris‐
tic s.
* NO
TEDama gecau sed bydriving over
obs tacle s The
vehicle canbedamag edby:
R driving upont ohigh curbs orunpaved
ro ads.
R quickl ydr ivin gove robs tacle ssu ch as
cur bs, spee dbum psorpotholes.
R hea vyobject shittin gth eunderbody or
ch assis components. #
Donotdr ive ove robs tacle sth at coul d
damag eth eve hicle. #
Chec kth eve hicle regular lyfordama ge
dur ing off-r oad driving. #
Adjus tth eve hicle speed tosuit the
ro ad sur face condi tions. #
Ifth er eis damag e,con sult aqu alif ied
spec ialistwo rkshop immediat ely. +
ENVIR
ONMENT ALNOTEEnvironme ntal
da ma gedue tonon-ob servance ofpro‐
hi bi tio nsigns En
vironme ntal protect ion has prior ity.Tr eat
natur ewit hre spect. #
Besureto obser veprohibition signs. Chec
klistbef oredr iving off-r oad
Chec kth efo llo wing pointsbef oredr ivin gof f-
ro ad:
R Fuelleve l
R Engi neoille ve l:fill engin eoil tothemaxi‐
mum leve lto ensur efull gradeability
(/ page28 4).
R Tire -cha ngeto ol kit and spar ewheel
R Tire sand wheels Of
f-road driving
Re ad this sect ionbeforedr ivin gyo ur vehicle off-
ro ad. Pract ice bydriving overmor ege ntle off-
ro ad terrain firs t.
R Observeth eno teson thecr oss-c ountr yABS
(/ page17 3).
R Ifnece ssary,select theF orG drive
pr og ram (vehicl eswit hOf f-road package )
bef oredr iving off-r oad (/page15 6).
R Select ave hicle leve lsuit able forof f-r oad ter‐
ra in (/ page208 ).To avo iddamagin gth e
ve hicle, makesur eth er eis alw ayssuf ficie nt
gr ou nd clearance .
R Alw ayske ep theengine running andingear
when drivin gon downh illgradien tsand
slope s.Obse rveth eno teson driving in
mount ainous terrain.
R Donotdr ive on unk nown terrain that isno t
easil yvisi ble and stay on mar kedro utes.
R Alw ayske ep thedoor sand windo wsclos ed
whi letheve hicle isin mo tion.
R Deactiv ateAc tiveDis tance AssistDIS TRONI C
and cruise contr ol. 15
0
Driving and parking

R
freq uent operation inmount ainouste rrain or
on poor road sur faces
R whe nth eengine isoftenleft idling forlong
per iods
R oper ation inpar ticula rly dus tycond ition s
and /orif air -rec ircula tion mod eis freq uen tly
used
In these orsimilar operating conditions ,ha ve the
int erior airfilt er ,engin eair clean er,engin eoil
and oilfilt er etc. chang edmor efreq uent ly.The
tir es mus tbe checkedmor efreq uentl yif th e
ve hicle isoper ated under increased loads. Fur‐
th er information canbeobt ained ataqu alif ied
spec ialistwo rkshop. Batt
erydisconne ctionperiods The
ASSYSTPL US service interva ldispla ycan
calc ulateth eser vice duedateonl ywhen the
batt eryis con nected. #
Notedown theser vice duedatedispla yedon
th eins trument displaybef orediscon necting
th ebatt ery(/ page280). Engine
compartment Opening
andclosing thehood &
WARNIN GRisk ofacci dent dueto driv‐
ing withth ehood unlocked
The hood mayopen andblockyo ur vie w. #
Neverre lease thehood when driving. #
Beforeev erytrip, ensur eth at thehood
is loc ked. &
WARNIN GRisk ofacci dent andinjury
when openingand closingthehood
The hood maysuddenl ydr op intoth eend
position .
Ther eis arisk ofinjur yfo ran yone inthe
hood's rang eof mo vement. #
Donotopen orclose thehood ifth er e
is aper son inthehood's rang eof mo ve‐
ment. &
WARNIN GRisk ofburnswhen opening
th ehood
If yo uopen thehood when theengine has
ove rheat edorwhen ther eis afire inthe
engine compartmen t,th efo llo wing situat ions
ma yocc ur:
R Youco uld come intoco ntact withho t
ga ses.
R Youco uld come intoco ntact withot her
ho t,escaping operating fluids. #
Beforeopen ingthehood, allowthe
ove rheat edengine tocool down. #
Intheeve ntofafire intheengine com‐
par tmen t,ke ep thehood closed and
call thefire ser vice. &
WARNIN GRisk ofinju rydue tomo ving
par ts
Com ponents intheengine compartmen tma y
con tinue running orstar tup sudden ly,ev en if
th eignition isswitc hedoff. Maint
enanc eand care28
1

#
Push handle 1ofthehood catchupw ards
and liftth ehood untilitopens automaticall y.
Closing thehood #
Lowe rth ehood toaheigh tof aroun d8 in
(20 cm)and then allo witto fall, appl ying a
litt leforc eas youletit go. #
Ifth ehood canstill be lifte dslightl y,open
th ehood again and close itwit halittle more
fo rc euntil iteng ages cor rectl y. Engine
oil Chec
kingtheengine oilleve lusing theoil
dip stick &
WARNIN GRisk ofburnsfrom hotcom‐
ponent partsintheengine compartmen t
Cer tain com pone ntpar tsintheengine com‐
par tmen tcan bevery hot,e.g. theengine,
th ecooler andpartsof theex haus tsy stem. #
Allo wtheengine tocool down and only
to uc hco mp onent partsdescr ibedin
th efo llo wing. *
NO
TEPlug -in hybrid #
Obser vetheno tesin theSupplement .
Yo uco uld other wise failto recogni ze
da ngers. Re
quirement s:
R The engin ehas anoildips tick.Ifno t,th e
engine oilleve lcan becheckedonl ywit hth e
on-boar dcom puter(/ page28 4) .
Depending ontheengine, theoil dips tickma ybe
ins talled intheengine compartmen tin dif fere nt
lo cati ons.
The waitin gtim ebef orech ecking theoil leve l
when theengine isat nor mal oper ating temp era‐
tur eis five minut es. Mai
ntenance andcare283

#
Drain of fan yex cess engineoilthat has been
added. Todo so, con sult aqu alif ied spec ialist
wo rkshop.
R For Engine OilLevel Switch Ignition On #
Switc hon theignition tocheckth eengine oil
le ve l.
R Engine OilLeve lSyst emInoperat ive:The oil
le ve lsen sor ismalfun ctionin gor notcon nec‐
te d. #
Consult aqu alif ied spec ialistwo rkshop.
R Engine OilLevel System Currently Unavail. #
Close thehood.
Re filling engine oil &
WARNIN GRisk ofburnsfrom hotcom‐
ponent partsintheengine compartmen t
Cer tain com pone ntpar tsintheengine com‐
par tmen tcan bevery hot,e.g. theengine,
th ecooler andpartsof theex haus tsy stem. #
Allo wtheengine tocool down and only
to uc hco mp onent partsdescr ibedin
th efo llo wing. &
WARNIN GRisk offire and injuryfrom
eng ineoil
If eng ineoilcom esintocon tact with hot
com ponent partsintheengine compart‐
ment ,it ma yignit e. #
Mak esur eth at no eng ineoilisspille d
ne xt to thefiller open ing. #
Allo wtheengine tocool offand thor‐
oughl yclean theengine oilfrom com po‐
nen tpar tsbef orest ar tin gth eve hicle. *
NO
TEEngi nedama gecau sed byan
inc orrect oil filt er ,inc orrect oil oraddi‐
tiv es #
Donotus eengi neoilsor oil filt er s
whic hdo notcor respond tothespecif i‐
cation sex plicitl ypr escr ibed forth e
ser vice interva ls. #
Followtheins truction son theser vice
int erva ldispla yfo rch ang ingtheengine
oil and obser vethepr escr ibed chang e
int erva ls. #
Donotuse additiv es. *
NO
TEDama gecau sed byrefilling too
muc hengine oil To
omuc hengine oilcan damag eth eengine
or thecat alytic converter . #
Have excess engineoilremo vedat a
qu alif ied spec ialistwo rkshop. %
Depending ondriving style, theve hicle con‐
sumes upto0.9 USqt(0.8 l)of oil per
600 miles(1 000 km).The oilconsum ption
ma ybe higher than this when theve hicle is
ne wor ifyo ufreq uen tly dr ive at high engin e
spee ds. Main
tenance andcare28
5

#
Turn cap 1cou nter-cloc kwiseand remo ve
it. #
Addengin eoil. #
Replace cap1and turnit cloc kwise untilit
eng ages. #
Chec kth eoil leve lag ain (/ page283 ). Chec
kingthecoolant leve l &
WARNIN GRisk ofburnsfrom hotcom‐
ponent partsintheengine compartmen t
Cer tain com pone ntpar tsintheengine com‐
par tmen tcan bevery hot,e.g. theengine,
th ecooler andpartsof theex haus tsy stem. #
Allo wtheengine tocool down and only
to uc hco mp onent partsdescr ibedin
th efo llo wing. &
WARNIN GRisk ofscal ding from hot
cool ant
If yo uopen thecap, youco uld bescalded. #
Letth emo torcool down beforeopening
th ecap. #
When opening thecap, wearprotect ive
gl ove sand safetygl asses . #
Open thecap slowlyto release pres‐
sur e. #
Park theve hicle onaleve lsur face. #
Checkth ecoolant temp eratur edispla yin the
ins trumen tclus ter.
The coolant temp eratur emus tbe inthebo t‐
to m quarterof thete mp eratur edispla y. #
Slowly turncap 1cou nter-clo ckwise to
re lease overpressur e. 286
Maintenance andcare

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Run FlatIndicat orInopera-
tive *C
anada only:
The tirepr essur eloss warning system ismalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop. Engine
oil Displa
ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
00B3 Check Engine OilAtNext
Refueling *T
heengine oilleve lhas dropped totheminimum leve l.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hins ufficie ntengi neoil. #
Checkth eengine oilleve lwhen next refuel ing.
Ad dengin eoil (/ page285 ).
No teson engine oil(/ page355). 408
Displa ymessag esand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
00B3 Check Engine OilLevel
(Add 1quart) *D
ispla ymess ageonl yfo rcer tainengi nes:
The engineoille ve lhas dropped totheminimum leve l.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hins ufficie ntengi neoil. #
Whe nne xt refuel ing, add 1.1 US qt(1l)of engine oil(/ page285) .
No teson engine oil(/ page355).
00B3
Engine OilRedu ceOil Level *D
ispla ymess ageonl yfo rcer tain engin es:
The engin eoil leve lis toohigh.
* NO
TEEngi nedama gecau sed bydriving withexc ess engine oil #
Avoid long journeys wit hex cess engineoil. #
Consul ta qu alif ied spec ialistwo rkshop immediat elyand have theengine oilleve lre duced.
00B3 En gine OilLevel LowStop
Vehicle TurnEngine Off *D
ispla ymess ageonl yfo rcer tainengi nes:
The engineoille ve lis toolow. Dis
play messa gesand warning/ indic ator lam ps 409

Disp
lay(MB UXmultim edi asy stem)
Hom escr een.. .......................................2 41
Disp lay(m ult imedi asy stem)
Operating. ...... .......................................2 42
Di spla y(on -boar dco mp uter)
Displ ayson themultifunc tiondispla y.... 237
Di spl aymes sage
Ca lling up(on-bo ardcom puter)...... .......363
No tes... ............................................. ....3 63
Di spla ymessag es
00B2 ---mp h<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 386
ç ---mp h<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 386
003D 12VBatt erySee Oper ator's
Manual..... .............................................4 01
: ActiveHea dlamps Inoperati ve...... 370
é ATTENTION ASSISTInoper ative... .3 85
é ATTENTION ASSIST: Take a
Br ea k!<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>.......386
: Automatic HeadlampMode
Inoper ative....... ..................................... 369
0027 CheckBr ak eFlui dLe vel............... 384 0026
CheckBr ak ePa ds See Oper a‐
to r's Manua l......... ................................. 385
00BD CheckCool antLevelSee Oper‐
at or's Manual ........................................ 375
00B3 CheckEn gin eOil AtNe xtRe fu‐
eli ng. ...... ............................................... 408
00B3 CheckEngi neOilLe vel(A dd 1
qu art).................................................... 409
: CheckLef tLo wBeam (exa m‐
ple)....... ................................................. 369
0077 CheckTire s<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 404
00B2 CheckWa sher Fluid... ...................3 74
ÿ Coolan tTo oHo tSt op Vehicle
Tu rn Engi neOff............ ............. ............. 375
0025 Currentl yUna vailable See
Opera tor's Manua l......... ....................... 396
00E5 Current lyUn available See
Operat or'sMan ual................................3 98
Á Don't Forget Your Key<0011001100110011001100110011001100110011001100110011001100110011
00110011> 368
00C4 Drive More Slowly<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 39500B3
Engine OilLevelCann otBe
Mea sured<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>.....411
00B3 EngineOilLe velLo wStop Vehi‐
cle Turn Engi neOff............ ....................409
00B3 EngineOilPr es su re Stop
Switc hOf fEngin e... ...............................4 10
00B3 EngineOilRe duce OilLevel.......... 409
0075 Front LeftMalfunction Service
Re quired (exa mp le)...............................3 64
00B6 FuelLevelLo w..............................3 77
00B6 GasCap Loose.............................3 77
0025 Inoper ativeSee Oper ator's
Manua l....... ........................................... 397
00E5 Inoper ativeSee Oper ator's
Manua l....... ........................................... 398
007A Inoper ativeSee Oper ator's
Manua l....... ........................................... 399
0053 Inoper ative..... .............................. 401
î Inoper ative..... .............................. 388
: Intell. Light System Inoperativ e....370 Inde
x433