2014 PORSCHE 911 TURBO snow chains

Minor Repairs 251
The standard tires profile and rubber mixture are optimized for wet and dry driving conditions, and may not prove favorable for snow conditions.fInstall snow tires before driving in such conditions.
Risk of insufficient road grip leading to loss of control and damage to the vehicle.
The standard tires profile and rubber mixture are optimized for wet and dry driving conditions, and may not prove favorable for snow conditions.fInstall snow tires before driving in such conditions.
Before mounting snow tires, consult with your Porsche dealer. They have the technical information necessary to advise you on wheel and tire compatibility.fSnow tires should have the same load capacity as original equipment tires and should be mounted on all four wheels.
Driving the vehicle with low tire pressure increases risk of a tire failure and resulting loss of control. Furthermore, low tire pressure increases the rate of wear of the affected tires and causes damage.
Tires with badly worn treads are very dangerous and could cause accidents.fMake sure they are replaced immediately.fDo not exceed the snow tire speed rating.
Snow tires do not have the same degree of traction on dry, wet or snowfree roads as normal tires. Furthermore, snow tires wear rapidly under these conditions.
Information
We recommend that you fit snow tires on the vehicle at temperatures below 45 °F (7 °C) since the driving performance of summer tires is reduced at low temperatures and a lower level of comfort can also be expected. For example, juddering noises caused by the tires can occur while maneuvering the vehicle or accelerating out of bends on both dry and wet road surfaces.Extremely low temperatures of below 5 °F (-15 °C) can cause permanent damage to summer tires.
Snow tires lose their suitability when their tread depth falls below 5/32 in. (4 mm).
Comply with all state and local laws governing snow tire and tread depth requirements.
Exceeding the maximum permitted speed for the tires fitted could cause tire failure.fAlways check the maximum speed rating on the tire sidewall on any tire on the vehicle.fNever exceed the maximum speed rating of the tires.
Wheel change
fWhen wheels are removed, mark the direction of rotation and position of each wheel.Example: FR (front right), FL, RR and RL.fAlways fit the wheels in accordance with the markings.
Snow chains
Risk of damage to body, axle or brake components.fFit snow chains only to the rear wheels, and only with the tire/rim combination listed in the Technical Data.fUse only the fine-link snow chains recommended and authorized by Porsche so that sufficient clearance between the wheel well and the chain is assured.fPlease see the chapter “WHEELS, TIRES” on page 286.fFollow instructions issued by the supplier of the chains.
Snow Tire Use
Tire Hazards
WARNINGh
NOTICE
DANGERh
Excessive Speed for Tires
DANGERh
NOTICE
14_991_Turbo_21.book Seite 251 Mittwoch, 9. April 2014 2:19 14

252 Minor Repairs
Fitting snow chains
fBefore fitting chains, remove accumulated ice and snow from the wheel well.fVehicles with snow chains must not be driven faster than 30 mph (50 km/h).
Different states and countries have varying statutory requirements regarding maximum speed.fCheck with local authorities for possible restrictions.fRemove chains as soon as the roads are free of ice and snow.
Example of Inscription
Inscription on radial tire
A – Tire size
Example: P 265/40ZR18 (101Y) – P - The tire is designed for Passenger vehicle. This information is not included on all tires.– 265 - Indication of tire width in mm – 40 - Indication of tire height to tire width ratio in percent– ZR - Belt type code letter for radial – 18 - Indication of rim diameter in inches – 101 - Load capacity coefficient
– Y - Speed code letter – XL (Extra Load) - Tire with increased load rating
B – TIN (Tire Identification Number)
Example: DOT xx xx xxxx xxxx – DOTThe DOT symbol indicates that the tires comply with the requirements of the US Department of Transportation and provides information about:– first two-digit code means manufacture’s identification mark.– second two-digit code means tire size.
14_991_Turbo_21.book Seite 252 Mittwoch, 9. April 2014 2:19 14

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
Reifendruck_TechnischeDaten.fm Seite 286 Mittwoch, 9. April 2014 3:12 15

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
14_991_Turbo_21.book Seite 297 Mittwoch, 9. April 2014 2:19 14

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
14_991_Turbo_21.book Seite 298 Mittwoch, 9. April 2014 2:19 14