ExampleofInscription
Inscriptiononradialtire
ATiresize
Example:P265/40ZR18101Y
–P-ThetireisdesignedforPassengervehicle.Thisinformationisnotincludedonalltires.
–265-Indicationoftirewidthinmm
–40-Indicationoftireheighttotirewidthratioinpercent
–ZR-codeletterforradialtiresforspeedsabove150mph/240km/h.Therearecur-rentlynostandardsconcerningtirestrengthatspeedsabove150mph(240km/h).
–R-Belttypecodeletterforradial
–18-Indicationofrimdiameterininches
–101-Loadcapacitycoefficient
–Y-Speedcodeletter
–XL(ExtraLoad)-Tirewithincreasedloadrating
BTIN(TireIdenticationNumber)
Example:DOTxxxxxxxxxxxx
–DOTTheDOTsymbolindicatesthatthetirescomplywiththerequirementsoftheUSDepartmentofTransportationandprovidesinformationabout:
–firsttwo-digitcodemeansmanufacture’sidentificationmark.
–secondtwo-digitcodemeanstiresize.
–thirdfour-digitcodemeanstiretypecode.
246PracticalTips,EmergencyService
Tires,Rims,Tracks
CaymanSTireRimRimoffsetTrack
Summertiresfront235/40ZR18(91Y)8Jx18H257mm58.5in./1486mm
rear265/40ZR18(101Y)XL9Jx18H243mm60.2in./1528mm
orfront235/35ZR19(87Y)8Jx19H257mm58.5in./1486mm
rear265/35ZR19(94Y)9.5Jx19H246mm60.0in./1522mm
Snowtiresfront235/40R1891VM+S8Jx18H257mm58.5in./1486mm
rear255/40R1895VM+S*9Jx18H243mm60.2in./1528mm
Theloadcapacitycoefficient(e.g.“91”)andmaximumspeedcodeletter(e.g.“V”)areminimumrequirements.Pleaseobservethechapter”TIRES/WHEELS”onpage237.
Danger!
InstallationofsizesnotauthorizedbyPorschemayhaveadangerouseffectonthedrivingstabilityandcouldresultinseverepersonalinjuryordeath.
Beforemountingnewtires,checkwithyourPorschedealeraboutthecurrentreleasestatus.
TireandrimsizesExtensivetestsareperformedbeforespecifictiresandwheelsareapprovedbyPorsche.YourPorschedealerhasinformationaboutapprovedtiresandwheelsandishappytoassistyou.Ifaftermarkettiresand/orwheelsareinstalledwhicharenotapprovedbyPorsche,thevehicle’sdriveability,stabilitywhileinmotionandhandlingcharacteristicsmightbeimpaired.SincePorschehasnodataonsuchcombinations,Porschecannotstandbehindthesafetyordurabilityoftheseaftermarketcombinations.
Snowchains*Canbemountedonlyontherearwheels;maximumspeed30mph/50km/h.UseonlyPorscheauthorizedfine-linkcross-typeoredgechains.Snowchainclearancecanbeguaranteedonlywiththetire+rimcombinationmarked.
298VehicleIdentification,TechnicalData
Tirepressureforcoldtires
Summerandsnowtires
17inchand18inchwheelsfront29psi(2.0bar)
rear36psi(2.5bar)
19inchwheelsfront32psi(2.2bar)
rear36psi(2.5bar)
ThesetirepressuresapplyonlytothetiremakesandtypesapprovedbyPorsche.
Pleaseobservethechapter”TPCTIREPRESSUREMONITORING”onpage122.
Pleaseobservethechapter”TIRES/WHEELS”onpage237.
VehicleIdentification,TechnicalData299
