2010 PORSCHE 911 CARRERA tire size

244
Practical Tips, Emergency Service
Example of InscriptionInscription on radial tireATire size
Example: P 295/30 ZR 19 100 Y
–P - The tire is designed for Passenger vehicle.
This information is not included on all tires.
–295 - Indication of tire width in mm
–30 - Indication of tire height to tire width ratio
in percent–ZR - code letter for radial tires for speeds
above 150 mph / 240 km/h
There are currently no standards concerning
tire strength at speeds above 150 mph
(240 km/h).
–R - Belt type code letter for radial
–19 - Indication of rim diameter in inches
–100 - Load capacity coefficient
–Y - Speed code letter
–XL (Extra Load) - Tire with increased load rat-
ing
B TIN (Tire Identification Number)
Example: DOT xx xx xxxx xxxx
–DOT
The DOT symbol indicates that the tires com-
ply with the requirements of the US Depart-
ment of Transportation and provides informa-
tion about:
– first two-digit code means manufacturer’s iden-
tification mark.
– second two-digit code means tire size.
– third four-digit code means tire type code.
– fourth four-digit code means date of manufac-
ture.
If, for example, the last four numbers read
0204, the tire was produced in the 2nd week
of 2004.
C Tire ply composition and material
The number of layers in the tread and sidewalls
and their material composition.
D Maximum permissible inflation pressure
The maximum permissible cold inflation pressure
to which a tire can be inflated.
fDo not exceed the permissible inflation
pressure.

Technical Data
287
Tires, Rims, Tracks 911 Carrera, 911 Carrera S
Tire Rim Rim offset Track
Summer tires*front 235/40 ZR 18 (91Y) 8 J x 18 H2 57 mm 58.5 in./1486 mm
rear 265/40 ZR 18 (101Y) XL 10.5 J x 18 H2 60 mm 60.4 in./1534 mm
orfront 235/35 ZR 19 (87Y) 8 J x 19 H2 57 mm 58.5 in./1486 mm
rear 295/30 ZR 19 (100Y) XL 11 J x 19 H2 67 mm 59.7 in./1516 mm
orfront 235/35 ZR 19 (87Y) 8.5 J x 19 H2 55 mm 58.5 in./1486 mm
rear 305/30 ZR 19 (102Y) XL 11.5 J x 19 H2 67 mm 59.7 in./1516 mm
Snow tiresfront 235/40 R 18 91V M+S 8 J x 18 H2 57 mm 58.5 in./1486 mm
rear 265/40 R 18 97V M+S** 10.5 J x 18 H2 60 mm 60.4 in./1534 mm
orfront 235/35 R 19 87V M+S 8 J x 19 H2 57 mm 58.5 in./1486 mm
rear 295/30 R 19 100V XL M+S 11 J x 19 H2 67 mm 59.7 in./1516 mm
The load capacity coefficient (e.g. “91”) and maximum speed code letter (e.g. “Y”) are minimum requirements.
Snow chainsCan be mounted only on the rear wheels; maximum speed 30 mph (50 km/h).
Use only Porsche authorized fine-link cross-type or edge chains.
Snow chain clearance can be guaranteed only on the tire + rim combination marked** without spacers.
Please see the chapter “SPACERS 911 CARRERA, 911 CARRERA S” on Page 255.
Tire and rim sizesExtensive tests are performed before specific tires and wheels are approved by Porsche. Your Porsche dealer has informa-
tion about approved tires and wheels and is happy to assist you.
If aftermarket tires and/or wheels are installed which are not approved by Porsche, the vehicle’s driveability, stability while
in motion and handling characteristics might be impaired. Since Porsche has no data on such combinations, Porsche cannot
stand behind the safety or durability of these aftermarket combinations.
* 911 Carrera S: Summer tires 19-inch only

288
Technical Data
Tires, Rims, Tracks 911 Carrera 4, 911 Carrera 4S, 911 Targa 4, 911 Targa 4S
Tire Rim Rim offset Track
Summer tires*front 235/40 ZR 18 (91Y) 8 J x 18 H2 57 mm 58.6 in./1488 mm
rear 295/35 ZR 18 (99Y) 11 J x 18 H2 51 mm 60.9 in./1548 mm
orfront 235/35 ZR 19 (87Y) 8 J x 19 H2 57 mm 58.6 in./1488 mm
rear 305/30 ZR 19 (102Y) XL 11 J x 19 H2 51 mm 60.9 in./1548 mm
orfront 235/35 ZR 19 (87Y) 8.5 J x 19 H2 55 mm 58.6 in./1488 mm
rear 305/30 ZR 19 (102Y) XL 11.5 J x 19 H2 50 mm 60.9 in./1548 mm
Snow tiresfront 235/40 R 18 91V M+S 8 J x 18 H2 57 mm 58.6 in./1488 mm
rear 295/35 R 18 99V M+S** 11 J x 18 H2 51 mm 60.9 in./1548 mm
orfront 235/35 R 19 87V M+S 8 J x 19 H2 57 mm 58.6 in./1488 mm
rear 295/30 R 19 100V XL M+S** 11 J x 19 H2 51 mm 60.9 in./1548 mm
The load capacity coefficient (e.g. “91”) and maximum speed code letter (e.g. “Y”) are minimum requirements.
Snow chainsCan be mounted only on the rear wheels; maximum speed 30 mph (50 km/h).
Use only Porsche authorized fine-link cross-type or edge chains.
Snow chain clearance can be guaranteed only on the tire + rim combination marked**.
Tire and rim sizesExtensive tests are performed before specific tires and wheels are approved by Porsche. Your Porsche dealer has information
about approved tires and wheels and is happy to assist you.
If aftermarket tires and/or wheels are installed which are not approved by Porsche, the vehicle’s driveability, stability while in
motion and handling characteristics might be impaired. Since Porsche has no data on such combinations, Porsche cannot stand
behind the safety or durability of these aftermarket combinations.
* 911 Carrera 4S, 911 Targa 4S: Summer tires 19-inch only

Technical Data
289
Danger!
Installation of sizes not authorized by
Porsche may have a dangerous effect on
the driving stability and could result in
serious personal injury or death.
fBefore mounting new tires, check with your Porsche dealer about the current release status.
Tire Pressures for cold tires (68 °F / 20 °C)Summer and snow tires 911 Carrera, 911 Carrera S
Summer and snow tires 911 Carrera 4, 911 Carrera 4S, 911 Targa 4, 911 Targa 4S
These tire filling pressures apply only to the tire makes and types approved by Porsche.
Please see the chapter “TIRES/WHEELS” on Page 235. Please see the chapter “TPM TIRE PRESSURE MONITORING” on Page 143. partially loaded
(up to 2 persons without luggage)fully loaded
(as of 2 persons with luggage)
18 inch wheels front 34 psi (2.3 bar) 37 psi (2.5 bar)
rear 38 psi (2.6 bar) 44 psi (3.0 bar)
19 inch wheels front 34 psi (2.3 bar) 37 psi (2.5 bar)
rear 40 psi (2.7 bar) 44 psi (3.0 bar)
partially loaded
(up to 2 persons without luggage)fully loaded
(as of 2 persons with luggage)
18 inch wheels front 34 psi (2.3 bar) 37 psi (2.5 bar)
rear 37 psi (2.5 bar) 44 psi (3.0 bar)
19 inch wheels front 34 psi (2.3 bar) 37 psi (2.5 bar)
rear 37 psi (2.5 bar) 44 psi (3.0 bar)

Index
307
Storing your Porsche .................................. 231
Sun visors .................................................... 40
Suspension management .............................. 69TTachometer................................................ 119
Tail light ..................................................... 277
Tank .......................................... 215, 216, 290
Ventilation system ............................... 217
Targa......................................................... 200
Technical data ............................................ 286
TEL Telephone information .......................... 133
Telephone .................................................. 100
Temperature setting ........................... 106, 107
Temperature, outside indicator .................... 123
Test stand, measurements ............................ 68
Theft protection ............................................ 14
Tire
Care .................................................. 239
Damage ............................................. 239
Designations....................................... 243
Pressure plate .................................... 237
Replacements ..................................... 240
Traction ............................................. 238
Wear .................................................. 238
Tire filling compressor.................................. 96
Tire pressure
Compressor ......................................... 96
Tire pressure monitoring
Warning light ...................................... 151
Wheels ............................................... 241
Tire pressure monitoring (TPM) .................... 143
Tires .................................... 10, 235, 287, 288
Care .................................................. 235Checking pressure..............................250
Dimensions.................................287, 288
Inscription...........................................244
Loading information.............................246
New tires..............................................10
Pressure ....................................236, 289
Pressure monitoring............................143
Pressure plate ....................................285
Removing and storing ..........................241
Sealant.................................96, 251, 252
Sidewall..............................................244
Size ...................................................244
Snow tires ..........................................242
Sport .....................................................4
Tool kit.........................................................96
Tools .....................................................95, 96
Towing ...............................................280, 282
Towing hook ...............................................280
Towing lug....................................................96
TPM Tire pressure monitoring ......................143
Track .................................................287, 288
Traction management...................................63
Transmission
Drive-Off Assistant ...............................168
Fluid ...........................................222, 290
Manual transmission............................168
Porsche Doppelkupplung (PDK) ....168, 170
Trip Odometer ............................................117
Trunk entrapment .........................................97
Turn signal
Indicator light ......................................119
Turn signals..........................................82, 119
UUndercoating ..................................... 218, 228VValves ....................................................... 240
Vanity mirror ................................................ 40
Vehicle
Care .................................................. 224
Dimensions ........................................ 298
Engine number ................................... 285
Identification ...................................... 284
Identification label............................... 284
Identification number .......................... 284
Lifting ................................................ 254
Load capacity .................................... 247
Performance ...................................... 296
Putting into operation ......................... 263
Safety compliance sticker ................... 284
Washing ............................................ 225
Vehicle identification number ....................... 284
Ventilation.................................................. 106
Vents ................................................ 106, 109
Viscosity, engine oil .................................... 211
Voice control, button.................................. 126
Voice control, PCM ..................................... 126WWarning lights and messages ...................... 158
Washer
Fluid .......................................... 220, 290
Fluid warning light............................... 220
Lever................................................... 83
Washing .................................................... 225

308
Index Welcome Home Function............................... 81
Wheel .................................. 10, 235, 287, 288
Alignment ........................................... 241
Balancing ........................................... 241
Bolts .................................................. 248
Care .................................................. 235
Changing............................................ 251
Checking pressure .............................. 250
Inscription .......................................... 244
Loading information............................ 246
Securing bolts .................................... 248
Security wheel bolts ........................ 15, 96
Sidewall ............................................. 244
Size ................................................... 244
Tire pressure .............................. 236, 289
Tire pressure plate.............................. 285
Tire sealant ................................ 251, 252
Wheels
Assembly aids for wheel changes ......... 249
Care .................................................. 229
TPM sensors ...................................... 241
Windows ............................................ 181, 228
Anti-crushing protection ......................... 26
Care .................................................. 228
Opening/Closing ................................... 26
Washer nozzles .................................... 83
Washer system ..................... 83, 220, 290
Windshield
Washer nozzles .................................... 83
Wiper blades, changing ....................... 223
Wiper/washer lever ............................... 83
Windshield wipers ................................. 83, 223
Replacing ........................................... 223Windstop .................................................... 190
Installing ............................................. 190
Removing ........................................... 193
Winter operation
Battery ............................................... 263
Coolant .............................................. 207
Engine oil ........................................... 208
Jumper cables ............................ 267, 268
Locks................................................. 226
Seals ................................................. 229
Snow chains ....................................... 243
Tires .................................. 242, 287, 288
Washer fluid........................................ 220
Wiper blades....................................... 223
Wiper
Blades................................................ 223
Lever ................................................... 83
Rear..................................................... 84
Wiper blades
Care .................................................. 228
Changing ............................................ 223