2020 MERCEDES-BENZ SLC ROADSTER inflation pressure

Snow
chains G
WARNING
If snow chains areinstalled tothe front
wheels, theymaydrag against thevehicle
body orchassis componen ts.This could
cause damage tothe vehicle orthe tires.
There isar isk ofan accident.
To avoid hazardous situations:
R never install snowchains tothe front
wheels
R alwa ysinstall snowchains inpairs tothe
rear wheels.
For safety reasons, Mercedes-B enzrecom-
mends thatyouonly usesnow chains that
have been specially approved foryour vehicle
by Mercedes-B enz,orare ofac orrespondin g
standard ofquali ty.For more information ,
please contactaquali fied specialist workshop.
If you inten dtom ount snow chains, please
bear thefollowing pointsinmind:
R Snow chains maynotbemounted onall
wheel/tire combinations .Permissible
wheel-tire combinations (Ypage 293).
R Only usesnow chains whendriving onroads
completely coveredbysnow. Remove the
snow chains assoon aspossible whenyou
come toaroad that isnot snow-cov ered.
R Local regulations mayrestrict theuse of
snow chains. Observe theappropriate regu-
lations ifyou wish tomount snowchains.
R Do not exceed themaximum permissible
speed of30 mph (50km/h).
You may wish todeactivate ESP®
when pulling
away withsnow chains installed (Ypage 61).
You canthereby allowthewheels tospin ina
cont rolled manner, achieving anincreased
driving force(cuttin gaction).
Inform ationabout driving withanemergency
spare wheel (Ypage 294). Tire
pressur e Tire
pressur especifications
Import antsafety notes G
WARNING
Underinflated oroverinflated tirespose the
following risks:
R the tires mayburst, especially asthe load
and vehicle speedincrease.
R the tires maywear excessively and/or
unevenly, whichmaygreatly impairtire
tract ion.
R the driving characterist ics,aswell as
steering andbraking, maybegreatly
impaired.
There isar isk ofan accident.
Follow recommen dedtireinflation pressures
and check thepressure ofall the tires
including thespare wheel:
R mont hly,atleast
R ifthe load changes
R before beginning along journey
R under different operating conditions,e.g.
off-r oad driving
If necessary, correctthetire pressure.
The data onthe Tire andLoading Information
placard andtirepressure tableshown hereare
examples. Tirepressure specifications are
vehicle-specific andmay deviate fromthedata
shown here.Thetirepressure specifications
that arevalid foryour vehicle canbefound on
the Tire andLoading Informationplacard and
tire pressure tableonthe vehicle.
General notes The
recommen dedtirepressures forthe tires
mounted atthe factory canbefound onthe
labels described here.
Operat ionwith anemergency sparewheel:
information onoperation withanemergency
spare wheel canbefound inthe general notes
in the "Emergenc yspare wheel" section
(Y page 295).
Further information ontire pressures canbe
obtained ataq uali fied specialist workshop. Tire
pressure
271Wheelsandtires Z

is
shown inthe Serv . Serv
.men uofthe multif unc-
tion display. Ex
ample: currenttirep ress uredisplay
For informat iononthe mess agedisplay, refer
to the "Check ingthe tirep ress ureelect roni-
cally" section(Ypage 277).
Imp ortant safet ynotes G
WARN
ING
Eac htire, inc luding thespare (ifprov ided),
should bechec kedatleast onceam onth
when coldandinflated tothe press urerec-
omme ndedbythe vehic lemanuf acturer on
the Tire andLoadin gInformat ionplacard on
the drive r'sdoor B-pillar orthe tirep ress ure
label onthe inside ofthe fuel filler flap.If
your vehic lehas tires ofad iffe ren tsize than
the size indic ated onthe Tire andLoadin g
Inf ormat ionplacard orthe tirep ress ure
label, youshould determin ethe proper tire
press ureforthosetires.
As anadded safetyfeat ure, your vehic lehas
been equipped withatirep ress uremon itor-
ing syst em(TPMS )that illuminat esalow tire
press uretelltalewhen oneormore ofyour
tir es are sign ifican tlyunder inflated. Accor d-
ingly, when thelow tirep ress uretelltaleillu-
min ates, youshould stopand chec kyour
tir es assoon aspossible ,and inflate themt o
the proper pressure.Drivin gonas ignifi-
can tlyunder inflated tirec auses thetiret o
over heat andcanlead totiref ailure. Under-
inf lation alsoreduc esfuel effic iencyand tire
tr ead life,and may affec tthe vehic le'shan-
dling andstopping ability.
Please notethat the TPMS isnot asubst i-
tut efor proper tirem aint enan ce,and itis
the drive r'srespo nsibilit ytom aintaincor-
rec ttirep ress ure, even ifunder inflation has not
reach edthe level totrigger illuminat ion
of the TPMS lowtirep ress uretelltale.
Your vehic lehas also been equipped witha
TPMS malfun ction indic atortoindic ateifthe
syst emisnot operat ingproper ly.The TPMS
malfun ction indic atoriscom bined withthe
low tirep ress uretelltale. When thesyst em
dete ctsam alfunction, thewarnin glamp will
flash forapprox imatelyam inute and then
remain continuously illuminat ed.This
sequen cewill berepeat edever ytimet he
vehic leisstar ted aslong asthe malfun ction
exis ts.
When themalfun ction indic atorisillumina-
ted, thesyst emmay notbeable todete ctor
sign allow tirep ress ureasintended .TPMS
malfun ctions may occurfor avariet yofrea-
son s,inc luding theinstallation ofinc ompat i-
ble replac ementoralter natetires orwheels
on the vehic lethat preventtheTPMS from
func tioningproper ly.Always checkthe
TPMS malfun ction tellt aleafterreplac ing
one ormore tires orwheels onyour vehic le
to ens ure that thereplac ementoralter nate
tir es and wheels allowtheTPMS tocon tinue
to func tion proper ly.
It is the drive r'srespo nsibilitytoset the tire
press uretothat recomme ndedforcold tires
which issuitable forthe operat ingsituat ion
(Y page 271).Notet hat the correcttirep res-
sure forthe curr entoperat ingsituat ionmust
firs tbetaught -intothe tirep ress uremon itor.
If as ubst antialloss ofpress ureoccurs, the
warnin gthreshold forthe warnin gmessage is
aligned tothe taught -inrefe rencevalues.
Restar tthe tirep ress uremon itorafteradjust -
ing the press ureofthe cold tires
(Y page 278). Thecurrentpress uresare
saved asnew referencevalues. Asaresult ,a
warnin gmessage willappear ifthe tirep res-
sure drops significant ly.
The tirep ress uremon itordoes notwarn youof
an incorre ctly set tirep ress ure. Obser vethe
not eson the recomme ndedtirep ress ure
(Y page 271).
The tirep ress uremon itorisnot able towarn
you ofas udden lossofpress ure,e.g.ifthe
tir ei sp enet ratedbyaf oreign object.Int he
even tofas udden lossofpress ure,bringthe 276
Tir
ep ressur eWheels andtires

!
To
prevent damage tothe paintwork, hold
the wheel securely againstthe wheel hub
while screwing inthe first wheel bolt. X
Clea nthe wheel andwheel hubcont actsur-
faces.
X Slide thewheel tobe mounted ontothe
alignment boltandpush iton.
X Tighten thewheel boltsuntiltheyarefinger-
tight.
X Unscrew thealignment bolt.
X Tighten thelast wheel boltuntil itis finger-
tight.
X Vehicles
withacollapsible sparewheel:
inflate thecollapsi blespare wheel
(Y page 296).
Only thenlower thevehicle.
Low ering thevehicl e G
WARNING
The wheels couldcome looseifthe wheel
bolts orwheel nutsarenot tightened tothe
prescribed tighteningtorque.Thereisar isk
of an accident.
Ensure thatthewheel boltsorwheel nuts
are tightened tothe prescribed tightening
torque.
If you arenot sure, donot move thevehicle.
Contact aqualified speciali stworkshop and
have thetightening torquechecked immedi-
ately.
! Vehicles
withacollapsible spare
wheel :before lowering thevehicle, inflate
the collapsi blespare wheel withthetire
inflation compressor. Thewheel rimcould
otherwise bedamage d. X
Turn thecrank ofthe jack counter-c lockwise
until thevehicle isonce againstanding
firmly onthe ground.
X Place thejack toone side. X
Tighten thewheel boltsevenly inac ross-
wise pattern inthe sequence indicated(0043
to 0083). Thespecified tightening torqueis
96 lb-ft (130 Nm).
X Turn thejack back toits initial position.
X Stow thejack andtherest ofthe vehicle
tools inthe trunk again.
X Vehicles withAMG equipment: insertthe
cover intotheouter sill.
X Check thetire pressure ofthe newly moun-
ted wheel andadjust itifnecessary.
Observe therecommended tirepressure
(Y page 271).
When youaredriving withthecollapsi ble
spare wheel mounted, thetire pressure loss
warning systemorthe tire pressure monitor
cannot function reliably.Only restart thetire
pressure losswarning systemortire pressure
monitor whenthedefective wheelhasbeen
replaced withanew wheel.
Vehicles withatire pressure controlsys-
tem: allinstalled wheelsmustbeequip ped
with functionin gsensors. Wheel
andtirecombination s
You canaskforinformation regardingpermit-
ted wheel/tire combinations atan authorized
Mercedes-Benz Center.
! For
safety reasons, Mercedes-Benz recom-
mends thatyouonly usetires andwheels
which havebeen approved byMercedes-
Benz specificall yfor your vehicle. Wheel
andtirecombin ations
293Wheels andtires Z