2014 PORSCHE 911 TURBO wheel size

258 Minor Repairs
Wheels with Central Lock
Racing technology for the road. Wheels with a central lock are perfectly normal in motor sport, but are not common on normal roads.Instead of the central lock nuts conventionally used in motor sport, the wheel has an encapsulated central bolt, which is used to fasten it to the wheel hub.
Driving on a race circuit (e.g. sports driving school, club sport events)
Wheels are subjected to significantly higher stresses during extremely sporty driving – particularly when driving on race circuits – compared to driving on public roads. For this reason, all the instructions specified below must always be noted and followed for driving on race circuits.fAlways make enquiries with your authorized Porsche dealer about any other driving and maintenance instructions before driving on race circuits.
The central lock, like all chassis components, requires greater attention while driving on race circuits.fCheck the tightening torque of the central bolts before, if necessary during and after driving on a race circuit.fWhenever wheels are changed, apply some aluminum paste to the trapezoidal thread on the wheel hub or have a second set of greased screws on hand.fNever drive the vehicle without a central lock bolt in the hub.fAll central wheel lock components, such as the central bolt, wheel, wheel hub, wheel hex and brake disk must always be checked for wear and replaced if necessary after driving on a race circuit.
fAxis components subject to high loads must be replaced at intervals specified by Porsche . Always make enquiries with your authorized Porsche dealer about the current stipulations before driving on race circuits.fOther parts such as ball joints, rubber mounts, etc., where wear may result in modified vehicle handling, must be checked and if applicable replaced without delay.
Deferring inspection, maintenance and replacement measures can result in accidents.
This is particularly true if you are clocking up high mileage on race circuits . We recommend that you get an authorized Porsche dealer to carry out these measures.
Components can break or become damaged. Unsuitable wheel sizes or incorrectly dimensioned components in the hub area of accessory wheels , the use of spacers, etc. can impair the overall function of the wheel mounting.fOnly use wheel/tire combinations approved by Porsche.fUnder no circumstances should spacers be used.
Central Bolts
The central bolt and central bolt lock are safety-related components. Always check them for signs of wear and damage.fThe conical surface, trapezoidal thread and inner toothing of the central bolt must not be scratched or cracked.fReplace damaged central bolts.Only use the genuine Porsche central bolts allocated specifically to this vehicle model.fThe conical surface and trapezoidal thread on the central bolt must be perfectly clean.
Tightening torque for central bolts: 443 ftlb. (600 Nm).
Changing a Wheel
fGet an authorized Porsche dealer to change the wheel.
Information
The tools required for changing a wheel (e.g. jack, torque wrench) are not supplied as standard with the car. Your authorized Porsche dealer will be pleased to advise you.
Deferred inspection, maintenance and replacement measures
Inadequate screw connections when using unapproved components and wheels
WARNINGh
WARNINGh
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286 Tire Pressure and Technical Data
Wheels, Tires
fApproval of tire and wheel sizes is granted based on extensive testing. By fitting tires that have been approved by Porsche, you can be sure that you have the best possible tires for your Porsche.The load capacity coefficient (e.g. “91”) and maximum speed code letter (e.g. “Y”) for permitted top speed are minimum requirements. When fitting new tires or changing tires: Please see the chapter “TIRES AND WHEELS” on page 244.fSnow chain clearance can only be guaranteed with the tires marked 1). Snow chains can only be fitted on the rear wheels. Observe state or province-specific laws regarding maximum speeds with fitted snow chains. Only use Porsche approved fine-link cross-type or edge chains.fYour Porsche dealer will be pleased to advise you about the current approval status for tires, wheels and snow chains.
FA = front axle, RA = rear axle
20-inch wheel FA / RA5 holes and central lock8.5J x20, RO51 / 11J x20, RO56 1)9J x20, RO51 / 11.5J x20, RO56
Summer tires FA / RA245/35 ZR 20 (91Y) / 305/30 ZR 20 (103Y) XL 245/35 ZR 20 (91Y) / 305/30 ZR 20 (103Y) XL
Snow tires FA / RA245/35 R 20 91V / 295/30 R 20 97V 1)
20-inch wheel FA / RA Winter wheel with central lock8.5J x20, RO51 / 11J x20, RO59 1)
20-inch winter wheel FA / RA, 5-holenot for Turbo S,
not for vehicles with PCCB brake
8.5J x20, RO51 / 11J x20, RO52
Winter tires FA / RA245/35 R 20 91V / 295/30 R 20 97V
Installation of sizes not authorized by Porsche may impair driving stability and could result in loss of control of the vehicle.fBefore mounting new tires check with your authorized Porsche dealer for a current list of approved tires.
Improper Tire SizeDANGERh
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Index 297
Storing vehicle settings ......................................34 Why have the settings changed? ........................144Shifting gearsPorsche Doppelkupplung (PDK) .........................172Shift prompt ......................................................93Side lightsSwitching on ......................................................79Slicks .............................................................................1Snow chainsGeneral information ..........................................251 Snow tires...................................................................250Socket (12 V) ..............................................................196Speed code letter on tire .............................................252Speed control (cruise control) Accelerating ....................................................156Decelerating ....................................................156Functional description .......................................155Interrupting operation .......................................156Storing speed ..................................................156Switching off....................................................157Switching on ....................................................156Speed limit..................................................................252Speedometer ..........................................................92, 93Spoiler, operating principle ...........................................190Sport Chrono ..............................................................114Sport mode ....................................................................3 Porsche Doppelkupplung ..................................175Switching on/off...............................................188 Sport tires ......................................................................2Stainless steel tailpipesCare instructions ..............................................236Standstill management Functional description .......................................184 Start/Stop function ......................................................149StartingEngine .............................................................148Steam-jet cleaners, instructions for use .........................232Steering......................................................................244 Countersteering assistance ...............................182 Steering torque pulse...................................................182Steering wheel Adjustment ........................................................51Multi-function steering wheel withtelephone function ..............................................53Multi-function steering wheel, functional description ........................................................52Switching Easy Entry function on/off ....................34Switching heating on/off .....................................51 StoppingEngine .............................................................148
Stopping engine automatically (Auto Start Stop function).......................................................... 149Stopwatch .................................................................. 114StorageGlove box........................................................ 193Opening storage compartment in front armrest .. 194Storage options............................................... 193Storage compartmentGlove box........................................................ 193In front armrest, opening .................................. 194Storage .......................................................... 193StoringPersonal settings ............................................. 143 Storing end position of the sunroof ................................. 66Storing the end position for the power windows............... 63Summer tiresChanging tires ................................................. 256Storage .......................................................... 250 Sun visor ...................................................................... 53Sunblind ....................................................................... 65SunroofCleaning the air deflector ................................... 67Emergency operation ......................................... 65Functional description ........................................ 63Malfunctions ...................................................... 65Storing end position ........................................... 66 Switching automatic anti-dazzle function on and off .......... 50Switching emergency flasher on/off................................ 83Switching on air-recirculation modeAir-conditioning system ...................................... 57 Switching on parking light .............................................. 83
TTachometerDisplay.............................................................. 92 Tailpipes Stainless steel, care instructions ....................... 236TankVentilation system ............................................ 231Technical dataDriving performance ........................................ 285Engine ............................................................ 285Tire pressure (bar/psi) ..................................... 287Tires, wheels ................................................... 286Weights........................................................... 288Technical modifications to the vehicle, information ......... 220Telephone ................................................................... 169Using via multi-function display .......................... 103Test standsBrake test ............................................... 221, 241Performance test..................................... 221, 241
Theft protection .....................................................16, 217 TireCare................................................................248Life .................................................................248Traction ...........................................................247Wear ...............................................................248Tire filling compressor .................................................198Tire pressureAir pressure (bar/psi)........................................287Comfort pressure .............................................110Comfort pressure speed warning.......................111Current settings ...............................................108Data (bar/psi) ..................................................287Fill info ............................................................108Speed warning .................................................112System learning ...............................................111Tire pressure plate ...........................................284Warnings .........................................................111Tire pressure monitoringWarning light ....................................................106Tire Pressure Monitoring System (TPMS) .......................105Tire pressure plate.......................................................284Tire sealing compound/sealing set for defective tires .....265TiresBreaking in new tires ............................................6Changing .........................................................256Checking pressure ...........................................256Damage ..........................................................248Fixing a flat tire ................................................265General information ..........................................244Inscription on radial tire ....................................252Replacing ........................................................249Sealant ............................................................265Setting type and size ........................................109Sidewall...........................................................252Snow chains (general information) .....................251Snow tires (general information) ........................250Sport ..................................................................2Storage ...........................................................250Tire pressure plate ...........................................284Tire pressure, data (bar/psi)..............................287Valves .............................................................249Tool kit........................................................................198Tools ..........................................................................198Torque ........................................................................116Torque display .............................................................116Torque, Technical data .................................................285TowingScrewing in towing lug ......................................280Towing lugIn the tool kit....................................................198
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298 Index
TPMS (Tire Pressure Monitoring System) ....................... 105 TransmissionPorsche Doppelkupplung (PDK) ......................... 172Transmission and chassis control systemsOverview (PSM, PASM, PDCC, PTV Plus) ............ 179Transport (on car trains, ferries, etc.)Securing the vehicle ......................................... 282Switching off inclination sensor ......................... 216Trip counterDisplay .............................................................. 93Resetting........................................................... 93Trip information ........................................................... 105Trunk entrapment .......................................................... 30Turn signal, stalk ........................................................... 82
UUltrasound sensor, ParkAssist ...................................... 207Underbody protection, care instructions ........................ 235Universal audio interface, installation position ................ 171Unlocking Opening vehicle door from inside......................... 23Retrieving personal settings from the key........... 143The vehicle cannot be unlocked........................... 26Unlocking and opening tailgate ............................ 25Unlocking vehicle door from inside ...................... 23Unlocking vehicle door with car key(remote control) ................................................. 21Unlocking vehicle door with Porsche Entry & Drive (keyless)........................... 21Upshift prompt .............................................................. 93USB interface, installation position ................................ 171
VVanity mirror ................................................................. 53Vehicle Keys ................................................................. 16Vehicle data ................................................................ 284Vehicle doorLocking from inside ............................................ 23Locking with car key (remote control) .................. 22Locking with Porsche Entry & Drive (keyless)........ 22Malfunctions when opening and closing................ 26Unlocking with car key (remote control) ............... 21Unlocking with Porsche Entry & Drive (keyless) ..... 21Vehicle informationRetrieving on multi-function display .................... 100Vehicle settingsAdapting multi-function display .......................... 118Adjusting on multi-function display ..................... 117
Adjusting volume of warning and information tones ............................................ 126Air-conditioning settings ................................... 123Changing button assignment on multi-function steering wheel ................................................. 127Changing the language .................................... 126Light and visibility settings................................ 120Locking settings .............................................. 122Porsche Active Safe settings ............................ 128Resetting to factory settings............................. 117Selecting settings menu ................................... 117Setting date and time....................................... 124Setting units .................................................... 125Storing on person buttons .......................... 34, 143Storing on the key ..................................... 34, 143Vents Adjusting........................................................... 59Opening/closing ................................................ 59 Voice control .............................................................. 171
WWarning messagesTire pressure................................................... 112 Washer fluid Antifreeze ....................................................... 224Topping up ...................................................... 224 Washer jets Heating ............................................................. 86Washing the vehicle, instructions .................................. 232WeightsDefinitions ....................................................... 204Weights, Technical data ............................................... 288Welcome Home functionSwitching on ..................................................... 80Wheel Attachment faces ............................................ 257Central Bolts ................................................... 258Central locking ................................................ 258Changing ........................................................ 258Checking pressure ........................................... 256Security wheel bolts......................................... 198 Wheel alignment ......................................................... 250Wheel attachment faces .............................................. 257Wheel change ............................................................. 251WheelsAdjusting......................................................... 250Central Bolts ................................................... 258Central locking ................................................ 258Changing ........................................................ 254Fixing a flat tire................................................ 265General information ......................................... 244
Inscription on alloy wheels ................................ 253 Inscription on radial tire .................................... 252Overview ......................................................... 286Replacing tires (general information) .................. 249Rim offset ....................................................... 286Security wheel bolt (wrench socket) ................... 257Size ................................................................ 286Snow chains (general information) ..................... 251Snow tires (general information) ........................ 250Storage ........................................................... 250Tightening torque ............................................. 258Tire pressure plate ........................................... 284Tire pressure, data (bar/psi) ............................. 287Tire sealant ..................................................... 265Wheel attachment faces ................................... 257Wheel balancing ............................................... 250Wheel bolts (care instructions)........................... 257WindowsAdjusting after connecting battery ....................... 63Care instructions .............................................. 234Heated washer jets ............................................ 86Opening/closing with rocker switch ..................... 62Storing end position ........................................... 63Windshield washer systemAdding washer fluid .......................................... 224Windshield wiper/washer stalk Adjusting the rain sensor sensitivity ..................... 85Windshield wiper/washer system......................... 86Windshield, fast wiping ....................................... 86Windshield, slow wiping ...................................... 86Wiping windshield once (one-touch operation) ....... 86 Windshield wipers Care instructions .............................................. 234Stalk ................................................................. 86 WindstopClosing.............................................................. 69Lowering ........................................................... 69Opening ............................................................ 69Raising .............................................................. 69Winter driving .............................................................. 272Winter tires Changing tires ................................................. 256General information .......................................... 250Storage ........................................................... 250 Wiper bladesCare instructions .............................................. 234Replacing ........................................................ 224Wrench socket for security wheel boltUsing .............................................................. 257
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