height MERCEDES-BENZ SLC ROADSTER 2018 Owner's Manual

If the driver or front passenger unfasten their
seat belts during the journey, the seat belt warn-
ing is activated again.
Air bags
Introduction
The installation point of an air bag can be rec-
ognized by the AIRBAG marking.
An air bag complements the correctly fastened
seat belt. It is no substitute for the seat belt. The
air bag providesa dditional protection in appli-
cable accident situations.
Not all air bags are deployed in an accident. The
different air bag systems function independ-
ently from one another (
Ypage 50).
However, no system available today can com-
pletelye liminate injuries and fatalities.
It is also not possible to rule out arisk of injury
cause dbyana ir bag due to the high speed at
which the air bag must be deployed.
Important safety notes
GWARNING
If you do not sit in the correct seat position,
the air bag cannot protect as intended and
could even cause additional injury when
deployed .This poses an increased risk of
injury or even fatal injury.
To avoid hazardous situations, always make
sure that all of the vehicle's occupants:
Rhave fastened their seat belts correctly,
including pregnant women
Rare sitting correctly and maintain the great-
est possible distance to the air bags
Rfollow the following instructions
Alway smake sure that there are no objects
between the air bag and the vehicle's occu-
pants.
RAdjust the seats properlyb efore beginning
you rjourney. Alway smake sure that the seat
is in an almostu pright position. The center of the head restraint must support the head at
aboute
ye level.
RMove the driver's and front-passenger seats
as far back as possible. The driver's seat posi-
tion must allow the vehicle to be driven safely.
ROnly hold the steering wheel on the outside.
This allows the air bag to be full ydeployed.
RAlway sleana gainst the backrest whiled riv-
ing. Do not leanf orward or leanagainst the
door or side window.Y ou may otherwise be in
the deployment area of the air bags.
RAlway skeep you rfeet in the footwell in front
of the seat. Do not put you rfeet on the dash-
board,f or example.Y our feet may otherwise
be in the deployment area of the air bag.
RFor this reason, always secure persons less
than 5ft(1.5 0m )tall in suitable restraint sys-
tems. Up to this height, the seat belt cannot
be worn correctly.
If ac hildist raveling in your vehicle, also
observe the following notes:
RAlway ssecure childrenu nder twelve years of
age and less than 5ft(1.50 m)tallins uitable
child restraint systems.
ROnlys ecureac hild in arearward-facing child
restraint systemo nthe front-passenge rseat
when the front-passenge rfront ai rbag is
deactivated .Ifthe PASSENGER AIR BAG OFF
indicator lamp is permanentl ylit,t he front-
passenge rfront ai rbag is deactivated
(
Ypage 39).
RAlway sobser ve the instructions and safety
note sont he "Occupant Classification System
(OCS) "(
Ypage 45) and on "Children in the
vehicle" (Ypage 53 )ina ddit iontot he child
restraint systemm anufacturer's installation
and operating instructions.
Objects in the vehicle interior may prevent
an air bag fromf unctioningcorrectly. Before
startin gyourjourney and to avoi drisks resulting
fromt he spee dofthe airbag as it deploys, make
sure that:
Rthere ar enopeople, animals or objects
between the vehicl eoccupants and an ai rbag
Rthere ar enoobjects between the seat, door
and B-pillar
Rno accessories, such as cup holders, are
attache dtothe vehicl ewithint he deployment
Occupant safety43
Safety
Z

Resetting triggeredNECK-PRO head
restraints
Do not insert your finger between the upholstery of the headr estraint and the seat. Payp articular
attention whil eresetting the NECK-PROh ead
restraints.
XTilt the top of the NECK-PROh eadrestraint
cushio nforward sinthe direction of arrow :.
XPush the NECK-PROh eadrestraint cushion
dow nasfar as it will go in the direction of
arrow ;.
XFirmly push the NECK-PROh eadrestraint
cushio nbackint he direction of arrow =until
the cushio nengages.
XRepea tthis procedure for the second NECK-
PROh eadrestraint.
iResetting the NECK-PROh eadrestraints
requires alot of strength. If yo uhaved ifficulty
resetting the NECK-PROh eadrestraints, have
this work carrie doutataq uali fied specialist
workshop.
PRE-SAFE®(anticipatory occupant
protection system)
PRE-SAFE®informs yo uofcertain critical driving
situations and take spre-emptive measures to
protect the vehicl eoccupants.
PRE-SAFE
®can take the following measures
independentl yofeacho ther:
Rpre-tensioning the driver'sa nd front-
passenger seatbelt.
Rclosing the sid ewindows.
Rvehicles with amemory function: setting a
more favorabl eseatp osition for the front-
passenger seat.
!Make sure that there are no objects in the
footwell or behind the seats. There is adanger
that the seats and/or objects could be dam-
aged when PRE-SAFE
®is activated.
Should an accident not occur, the preventative
measures take nare reversed. Certai nsettings
mus tbem adey ourself.
XIf the seatb eltp re-tensioning is not reduced,
move the seatb ackrest back slightly.
Seatb eltp re-tensioning is released.
Automatic measures after an acci-
dent
Immediately afte ranaccident, the following
measures are implemented, depending on the
typ eand severity of the impact:
Rthe hazard warning lamps are switched on
Rthe emergency lighting is activated
Rthe vehicl edoors are unlocked
Rthe front sid ewindow sare lowered
Rvehicles with amemory function: the electri-
cally adjustabl esteering wheel is raised when
the driver'sd ooriso pened
Rthe engine is switched off and the fue lsuppl y
is switched off
Rvehicles with mbrace: automatic emergency
call
Childrenint he vehicle
Important safety notes
Ifac hild younger than twelve years olda nd
under 5ft(1.50 m) in height is traveling in the
vehicle:
Ralways secur ethe child in achild restraint
systems uitabl efor Mercedes-Benz vehicles.
The child restraint systemm ustbea ppropri-
ate to the age, weight and size of the child.
Rbe sure to observe the instructions and safety
notesint hissectio nina dditiontot he child
restraint systemm anufacturer's installation
instructions.
Ralways observe the instructions and safety
notesont he "Occupant classification system
(OCS)". (
Ypage 45)
Children in the vehicle53
Safety
Z

GWARNING
If you leave children unsupervised in the vehi-
cle, they coul dset it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehiclee quip-
ment and become trapped. There is arisk of
an accident and injury.
When leaving the vehicle, alway stake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If persons, particularl ychildren are subjected
to prolonged exposure to extreme heato r
cold, there is arisk of injury ,possibly even
fatal .Never leave children unattended in the
vehicle.
GWARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularl yonthe metal parts of the child
restraint system. There is arisk of injury.
If you leave the vehicle, taking the child with
you ,alway sensure that the child restraint
system is not exposedtod irect sunlight. Pro-
tect it with ablanket, for example. If the child
restraint system has been exposedtod irect
sunlight, let it cool downb efore securing the
child in it. Never leave children unattended in
the vehicle.
Always ensure that all vehicleo ccupants have
their seat belts fastened correctly and are sitting
properly.P articular attention must be paidt o
children.
Observe the safety notes on the seat belt
(
Ypage4 0) and the notes on correct use of seat
belts (Ypage4 1).
Ab ooster seat may be necessary to achieve
propers eat beltp ositioning for children over
40 lbs (18 kg )until they reach aheight where a three-point seat beltc
an be properly fastened
without abooster seat.
Special seatbelt retractor
GWARNING
If the seat beltisr eleased while driving, the
child restraint system wil lnolonger be
secure dproperly.T he special seat beltr etrac-
tor is disableda nd the inertia real draw sina
portion of the seat belt. The seat beltc annot
be immediatel yrefastened. There is an
increased risk of injury,p ossibly even fatal.
Stop the vehiclei mmediately, paying atten-
tion to road and traffic conditions. Reactivate
the special seat beltr etractor and secure the
child restraint system properly.
The seat beltont he front-passenger's side is
equipped with aspecial seat beltr etractor.
When activated, the special seat beltr etractor
ensure sthat the seat beltc annot slacken once
the child seat is secured.
Installing achild restraint system:
XMake sure you observe the child restraint
system manufacturer's installation instruc-
tions.
XPul lthe seat belts moothly out of the belt
loop.
XEngage seat beltt ongue in beltbuckle.
Activating the special seat beltr etractor:
XPullthe seat belto ut fullyand let the inertia
reel retract it again.
Whilet he seat beltisr etracting, you should
hear aratcheting sound .The special seat belt
retractor is enabled.
XPush the child restraint system downsot hat
the seat beltist ight and does not loosen.
Removing the child restraint system and deac-
tivating the special seat beltr etractor:
XMake sure you observe the child restraint
system manufacturer's installation instruc-
tions.
XPress the release button of the seat belt
buckle,hold the beltt ongue and guide it back
toward sthe beltl oop.
The special seat beltr etractor is deactivated.
54Children in the vehicle
Safety

The seats can still be adjusted when there is no
SmartKey in the ignition lock.
GWARNING
When you adjust aseat, you or other vehicle
occupantsc ould become trapped, e.g. on the
seat guide rail. There is arisk of injury.
Make sure when adjusting aseat that no one
has any body parts in the sweep of the seat.
GWARNING
If the driver's seat is not engaged, it could
move forwards as far as the next catc hduring
movements uch as braking or abrupt changes
of direction .Asaresult, you would be pushed
against your seat belt by the unsecured driv-
er's seat.
This could cause you to lose control of the
vehicle. The seat belt cannot protec tasinten-
ded and could result in additional injury.
There is arisk of an accident and injury.
Before every journey, make sure that the driv-
er's seat is fully engaged.
Observe the safety notes on "Air bags"
(
Ypage 43) and "Children in the vehicle"
(Ypage 53).
GWARNING
If the driver's seat is not engaged, it could
move unexpectedly while the vehicle is in
motion.T his could cause you to lose control of
the vehicle. There is arisk of an accident.
Always make sure that the driver's seat is
engaged before starting the vehicle.
GWARNING
If you adjust the seat height carelessly, you or
other vehicle occupantsc ould be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment button sand become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustmen tsys-
tem.
GWARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection as intended. There is an increased risk
of injury in the head and neck area, e.g. in the event of an accident or when braking.
Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steerin gwheel or mirrors
Rfasten the seat belt
There is arisk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
!To prevent damage to the seats and the seat
heating, observe the following notes:
RDo not spill liquids ontot he seats. Dry the
seats as soon as possible if liquid does get
spilled on the seats.
RIf the seat covers are damp or wet, do not
switch on the seat heating. Also, do not use
the seat heating to dry the seats.
RClean the seat covers as recommended;
see the "Interior care" section.
RDo not transport heavy loads on the seats.
Do not place pointed object sonthe seat
cushions such as knives, nails or tools.
Where possible, use the seats only for car-
rying passengers.
RWhen operating the seat heating, do not
cover the seats with insulating materials,
e.g. blankets ,coats, bags, protective cov-
ers, child seats or booster seats.
RWhen the seat heating is switched on, the
seat surface can be damaged as aresult of
object sbeing placed on the seats; for
example, seat cushions, child seats and
protective covers not approved by
Mercedes-Benz.
Seats85
Seats, steering wheel and mirrors
Z

!Make sure that there are no objects in the
footwell under or behind the seats when mov-
ing the seats back. There is arisk that the
seats and/or the objects could be damaged.
iThe head restraints are equipped with the
NECK-PRO system (Ypage 52). For this rea-
son, it is not possible to remove the head
restraints from the seats.
For more information, contact aqualified spe-
cialist workshop.
Adjusting the seats manually
XSeat fore-and-aft adjustment: lift lever:
and slide the seat forwards or backwards.
XRelease lever :again.
Make sure that you hear the seat engage in
position.
XTo adjust the backrest angle: relieve the
pressure on the backrest.
XPull handle ;and move backrest to the
desired angle.
XRelease handle ;again.
The backrest must audibly engage.
XTo adjust the seat height: pull handle=
upwards or push it down repeatedly until the
seat has reached the desired height.
Adjusting the seats electrically
:Backrest angle
;Seat fore-and-aft adjustment
=Seat cushion angle
?Seat height
iYou can store the seat settings using the
memory function (Ypage 93).
Adjusting the head restraints
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is arisk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
XTo raise/lower: push the head restraint
upwards or pull it down into the desired posi- tion.
86Seats
Seats, steering wheela nd mirrors

:Releaselever
;Adjusts th esteering whee lheight
=Adjusts th esteering whee lposition (fore-
and-af tadjustment)
XPush release lever :down completely in th e
direction of th earrow.
The steering column is unlocked.
XAdjus tthe steering whee ltot he desired posi-
tion .
XPush release lever :up completely.
The steering column is locked.
XChec kifthesteering column is locked. When
doin gso, tr ytop ush th esteering whee lupor
down or tr ytom oveitint hefore-and-af t
direction .
Adjusting th esteering wheel electri-
cally
:Adjusts th esteering whee lheight
;Adjusts th esteering whee lposition (fore-
and-af tadjustment)
iFurther relate dsubjects :
REASY-ENTRY/EXIT feature (Ypage 89)
RStoring setting s(Ypage 93)
EASY-ENTRY/EXIT feature
Important safety notes
GWARNIN G
If you driv eoff while th eEASY-ENTRY/EXIT
feature is making adjustments ,you could lose
control of th evehicle. There is ariskofa n
accident.
Always wait until th eadjustmen tprocess is
complete before driving off .
GWARNING
When th eEASY-ENTRY/EXIT feature adjust s
th es teering wheel, you and other vehicl e
occupant s–particularly children –could
become trapped .There is ariskofi njury.
Whil ethe EASY-ENTRY/EXIT feature is mak -
ing adjustments ,makes uret hatnoo nehas
any body part sintheswee poft hesteering
wheel.
If somebod ybecome strapped :
Rpress on eofthememory function position
buttons ,or
Rmov ethe switch for steering whee ladjust -
men tint heopposit edirection to that in
whic hthe steering whee lismoving.
The adjustmen tprocess is stopped.
GWARNIN G
When th eEASY-ENTRY/EXIT feature adjust s
th es teering whee land th edriver' sseat ,you
and other vehicl eoccupant s–particularly
children –could become trapped .There is a
ris kofi njury.
Whil ethe EASY-ENTRY/EXIT feature is mak -
ing adjustments ,makes uret hatnoo nehas
any body part sintheswee poft heseat and
th es teering wheel.
Steering wheel89
Seats ,steering wheel and mirrors
Z

Important safety notes
The rear viewcamera is only an aid. It is no ta
replacemen tfor your attention to your immedi-
ate surroundings. You are always responsible
for saf emaneuverin gand parking .Makes ure
that there are no persons, animals or objects in
th em aneuverin garea when you are maneuver-
ing or parking .
Under th efollowin gcircumstances, th erear
vie wc amera will no tfunction ,orwill function in
al imite dmanner:
Rif th etrunk lid is open
Rin heav yrain ,sno worf og
Rat night or in ver ydark places
Rif th ecamera is exposed to ver ybright ligh t
Rif thearea is lit by fluorescent bulbs or LE D
lighting (the display may flicker)
Rif there is asudde nchang eint emperature,
e.g. when driving int oaheated garage in win -
te r
Rif th ecamera len sisdirtyoro bstructed.
Observ ethe note sonc leaning
(
Ypage 242)
Rif th erear of your vehicl eisdamaged. In this
case, hav ethe camera position and setting
checke dataq ualified specialist workshop
The field of vision and other function softherear
vie wc amera may be restricted due to additional
accessories on th erear of th evehicl e(e.g.
license plat eholder, bicycle rack) .
On vehicles wit hheight-adjustable chassis,
leaving th estandard height can result in inac-
curacie sint
he g
uide lines, depending on tech -
nical conditions.
iThe contras tofthedisplay may be affecte d
by th esudde npresence of sunligh torother
ligh tsources, e.g. when exiting agarage. Pay
particular attention in this situation .
iIf usabilityisseverely restricted, e.g. due to
pixel errors ,have th edisplay repaire dor
replaced.
iThe rear vie wcamera is protected from rain -
drops and dust by mean sofaflap.W hen th e
rear vie wcamera is activated, this flap opens.
The flap closes again when :
Ryou havefinishe dthe maneuverin gprocess
Ryou switch off th eengine
Ryou open th etrunk
Observ ethe note sonc leaning (
Ypage 242). Fo
rtechn ical reasons, th eflap may remain
open briefly after th erear vie wcamera has
been deactivated.
Activating/deactivating th erearv iew
camera
XTo activate: makesuret hatthe SmartKey is
in position 2in th eignition lock.
XMak esuret hatthe Activatio nbyRgearfunction is selected in th emultimedia system;
see th eDigital Owner' sManual.
XEngage revers egear .
The rear vie wcamera flap opens. The multi-
media system shows th earea behind th evehi-
cle wit hguide lines.
The imag efromt herear vie wcamera is avail-
able throughout th emaneuverin gprocess.
To deactivate: ther ear vie wcamera deacti -
vates if you driv eforwards ashort distances or
shif tthe transmission to j.
The inner segments of th ewarning indicator are
displayed in red if there is acom plete system
failure. The indicator lamp in th ePARKTRONIC
butto nlights up.
If th erear system fails :
Rther ear segments are displayed in red when
reversing
Rth er ear segments are no tdisplayed when
driving forwards
Display sinthemultimedi asystem
The rear vie wcamera may sho wadistorted vie w
of obstacles, sho wthemi ncorrectl yornotat all.
The rear vie wcamera does no tsho wo bjects in
th ef ollowin gpositions:
Rver yclose to th erear bumper
Runder th erear bumper
Rin close range abov ethe handle on th etrunk
lid
!Objects no tatground level may appear to
be further away than they actually are, e.g. :
Rtheb umper of aparked vehicl e
Rthed rawbar of atrailer
Rth eb all couplin gofatrailer to whitch
Rther ear section of an HGV
Ras lante dpost
Driving systems155
Driving and parking
Z

XReachintot he gap, pull hoo dcatch handle ;
up and lift hoo d:.
If you lift th ehoodbya pproximately 15 in
(40 cm), th ehoodiso pened and held open
automatically by th egas-filled strut .
Closingthehood
XLowe rthe hoo dand let it fall from aheight of
approximately 8in(20 cm).
XChec kthatthe hoo dhas engage dproperly.
If th ehoodc an be raised slightly, it is no t
properly engaged. Open it again and close it
wit hal ittlem oref orce .
Engine oil
Notes on th eoil level
Dependin gonyour driving style, th evehicl e
consumes up to 0. 9USqt(0.8 liters )ofoilpe r
60 0m iles (1,000 km). Th eoilcons umption may
be higher than th iswhen th evehicle is newori f
you frequently driveath igh engines peeds.
Dependin gontheengine, th eoil dipst ick may be
in ad ifferent location.
When checking th eoilleve l:
Rpark th evehicle onaleve lsurface
Rthee ngines hould be swit ched off for approx-
imately fiv eminute sift heengineisatn ormal
operatin gtem perature
Rifth ee ngineisn otat normal operatin gtem -
perature, e.g .iftheenginew as onlystarted
brie fly,wait about 30 minute sbefore carrying
out the measurement
Checking the oil level using the oil dip-
stick
GWARNING
Certain component sinthe engine compart-
ment ,such as the engine, radiator and parts
of the exhaust system, can become very hot.
Workin ginthe engine compartment poses a
risk of injury.
Only touch the following component sdescri-
bed.
Example
XPull oil dipstick :out of the dipstick guide
tube.
XWipe off oil dipstick :.
XSlowly slide oil dipstick :into the guide tube
to the stop, and take it out again.
If the level is between MIN mark =and MAX
mark ;,the oil level is correct.
XIf the oil level has dropped to MIN mark =or
below, add 1.0 liter of engine oil.
XIf the oil level has dropped to MIN mark =or
below, add 1.1 US qt (1.0 liter) of engine oil.
Example
234Engine compartment
Maintenance and care

Tire labeling
Overview
:Unifor mTireQ ualit yGradin gStandard
(Ypage 278)
;DOT, Tire Identification Number
(Ypage 277)
=Maximum tire load (Ypage 277)
?Maximum tire pressure (Ypage 266)
AManufacturer
BTire material (Ypage 278)
CTire size designation, load-bearing capacity
and spee drating (Ypage 275)
DLoadi ndex (Ypage 277)
ETire name
The markings describe dabove ar eont he tire in
additio ntothe tire nam e(sales designation) and
the manufacturer's name.
iTire data is vehicle-specific and mayd eviate
fromt he data in the example.
Tire size designation ,loa d-bearing
capacity and speed rating
GWARNING
Exceeding the stated tire load-bearing capa-
city and the approved maximum spee dcould
lead to tire damage or the tire bursting. There is ar iskofa ccident.
Therefore ,onlyu setire types and sizes
approved for your vehicl emodel .Observe the
tire load rating and spee drating required for
your vehicle.
:Tire width
;Nomina laspec tratio in %
=Tire code
?Rimd iame ter
ALoadb earing index
BSpeed rating
General: depending on the manufacturer's
standards ,the size imprinted in the tire wall may
not contain any letters or mayc ontain one letter
thatp recedes the size description.
If there is no letter preceding the size descrip-
tio n(as shown above): these ar epassenger
vehicl etiresa ccording to Europea nmanufac-
turing standards.
If "P "precedes the size description: these are
passenge rvehicl etiresa ccording to U.S. man-
ufacturin gstandards.
If "LT" precedes the size description: these are
light truck tire saccording to U.S. manufacturing
standards.
If "T "precedes the size description: compact
emergency wheels with high tire pressure that
ar eo nlyd esig nedf or temporary us einanemer-
gency.
Tire width: tire width:shows the nominal tire
width in millimeters.
Height-width ratio: aspect ratio;is the size
ratio between the tire height and tire width and
is shown in percent. The aspect ratio is calcula-
ted by dividing the tire width by the tire height.
Tire code: tire code=specifie sthe tire type.
"R "r epresents radial tires; "D" represents diag-
ona ltire s; "
B" represents diagona
lradial tires.
Optionally ,tire sw itham aximum spee dofover
149 mph (24 0km/h )mayhave "ZR" in the size
Alla bout wheels an dtires275
Wheel sand tires
Z

Speed rating
The speed rating is part of the tire identification.It specifies the speed range for which the tire is
approved.
GVW (Gross Vehicle Weight)
The gross vehicle weight includes the weight of the vehicle including fuel, tools, the spare wheel,
accessories installed, occupants, luggage and
the drawbar noseweight, if applicable. The gross
vehicle weight must not exceed the gross vehi-
cle weight rating GVWR as specified on the vehi- cle identification plate on the B-pillar on the
driver's side.
GVWR (Gross Vehicle Weight Rating)
The GVWR is the maximum permissible gross
weight of afully loaded vehicle (the weight of the
vehicle including all accessories, occupants,
fuel, luggage and the drawbar noseweight, if
applicable). The gross vehicle weight rating is
specified on the vehicle identification plate on
the B-pillar on the driver's side.
Maximu mloaded vehicle weight
The maximum weight is the sum of:
Rthe curb weight of the vehicle
Rthe weight of the accessories
Rthe load limit
Rthe weight of the factory installed optional
equipment
Kilopascal (kPa)
Metric unit for tire pressure. 6.9 kPa corre-
sponds to 1psi. Another unit for tire pressure is
bar. 100 kilopascals (kPa) are the equivalent of
1b ar.
Load index
In addition to the load-bearing index, the load
index may also be imprinted on the sidewallo f
the tire. This specifies the load-bearing capacity
more precisely.
Curb weight
The weight of avehicle with standard equipment
including the maximum capacity of fuel, oil and
coolant. It also includes the air-conditioning sys-
tem and optional equipment if these are instal-
led in the vehicle, but does not include passen-
gers or luggage.
Maximu mload rating
The maximum load rating is the maximum per-
missible weight in kilograms or lbs for which a
tire is approved.
Maximu mpermissible tire pressure
Maximum permissible tire pressure for one tire.
Maximu mload on one tire
Maximum load on one tire. This is calculated by
dividing the maximum axle load of one axle by
two.
PSI (pounds per squarei nch)
Astandard unit of measure for tire pressure.
Aspect ratio
Relationship between tire height and tire width
in percent.
Tire pressure
This is pressure inside the tire applying an out-
ward force to each square inch of the tire's sur-
face. The tire pressure is specified in pounds per
square inch (psi), in kilopascal (kPa) or in bar.
The tire pressure should only be corrected when the tires are cold.
Cold tire pressure
The tires are cold:
Rif the vehicle has been parked with the tires
out of direct sunlight for at least three hours
and
Rif the vehicle has not been driven further than
1m ile (1.6 km)
Tread
The part of the tire that comes into contact with
the road.
Bead
The tire bead ensures that the tire sits securely
on the wheel. There are several steel wires in the
bead to prevent the tire from coming loose from
the wheel rim.
Sidewall
The part of the tire between the tread and the
bead.
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Wheels and tires
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