250 Minor Repairs
Wheel alignment, wheel balancing
As a precaution, have wheels with summer tires balanced in the spring, and those with mud and snow tires before winter. Unbalanced wheels may affect car handling and tire life.Only the specified weights may be used for wheel balancing.
Self-adhesive weights must not come into contact with cleaning agents, since they could drop off.Uneven tread wear indicates wheel imbalance. In this event, the vehicle should be checked at an authorized Porsche dealer.
If, during a trip, uneven running or vibrations occur that could be caused by damage to tires or the car, the speed must be reduced immediately, but without braking sharply. If you continue your trip without having the cause of the fault remedied, you might lose control of your vehicle.fStop the vehicle and check the tires.fIf no cause for the fault can be found, drive carefully to the nearest authorized Porsche dealer.
The summer tires of your Sports Car have been specially developed and adapted for high performance. At low outside temperatures (<15°C (60°F)), the tire characteristics change. This can result in noises occurring when parking or maneuvering at low outside temperatures.
Wheels with Tire Pressure Monitoring System (TPMS) sensors
Before changing wheels, make sure that the wheels are compatible with your vehicle’s TPMS.fCheck this with your authorized Porsche dealer.
Removing and storing tires
fAfter changing, adjust tire pressure and torque wheel bolts diagonally. Please see the chapter “CHANGING WHEELS” on page 254.fStore tires in a cool and dry place. Rotate periodically to avoid flat spots.fDo not store summer tires or park vehicles fitted with summer tires at ambient temperatures below 5 °F (-15 °C).fAvoid contact with fuel, oil and grease.
Tires must always remain on the same side of the vehicle.When wheels are removed, the direction of rotation and position of each wheel should be marked.
Example
FR (front right), FL, RR and RL.
Wheels must always be fitted in accordance with their marking.
The perception that tire durability and performance are not affected by storage and age is unfounded. Chemical additives, which make the rubber elastic, lose their effectiveness over the course of time and the rubber becomes brittle and cracks.
Therefore, the tires should be inspected from time to time.
Information
Under no circumstances should tires older than 6 years be used on your Porsche.
The age of the tire can be obtained from the “DOT” code number. If, for example, the last four numbers read 1213, then the tire was produced in the 12th week of 2013.
Snow tires
The installation of Porsche approved snow tires is recommended.
Use Porsche approved snow tires for grip on snow and ice. Summer performance tires are not suitable for usage in cold, snowy, or icy conditions.Check with your local Motor Vehicle Bureau for possible restrictions.
High-Speed tire Vibration
DANGERh
14_991_Turbo_21.book Seite 250 Mittwoch, 9. April 2014 2:19 14
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
Tire Pressure and Technical Data 283
Tire Pressure and Technical Data
Vehicle Identification Data ............................284 Engine Data ................................................285Driving Performance....................................285Wheels, Tires ..............................................286Tire Pressure for Cold Tires (68 °F/ 20 °C) ...287Weights ......................................................288Dimensions.................................................288Filling Capacities .........................................289
Reifendruck_TechnischeDaten.fm Seite 283 Mittwoch, 9. April 2014 3:12 15
Tire Pressure and Technical Data 285
Engine Data
Driving Performance
The specifications refer to a vehicle with DIN curb weight without performance-reducing additional equipment (e.g. special tires).
911 Turbo911 Turbo S
Number of cylinders 6 6
Displacement 231.9 cu. in. (3,800 cm3)231.9 cu. in. (3,800 cm3)
Max. engine power as per 80/1269/EEC 520 hp (338 kW) 560 hp (412 kW)
At engine speed 6,000-6,500 rpm 6,500-6,750 rpm
Max. torque as per 80/1269/EEC487 ftlb. (660 Nm)Overboost: 524 ftlb. (710 Nm)553 ftlb. (700 Nm)Overboost: 553 ftlb. (750 Nm)
At engine speed1,950-5,000 rpmOverboost: 2,100-4,250 rpm2,100-4,250 rpmOverboost: 2,200-4,000 rpm
Maximum permitted engine speed 7,000 rpm 7,200 rpm
Maximum track speedAcceleration 0–100 km/h (62 mph) (values in bracketsrelate to “Sport Plus” mode)
911 Turbo Coupé196 mph (315 km/h) 3.4 (3.2) seconds
911 Turbo S Coupé198 mph (318 km/h) (3.1) seconds
911 Turbo Cabriolet196 mph (315 km/h) 3.5 (3.3) seconds
911 Turbo S Cabriolet198 mph (318 km/h) (3.2) seconds
Reifendruck_TechnischeDaten.fm Seite 285 Mittwoch, 9. April 2014 3:12 15
Tire Pressure and Technical Data 289
Filling Capacities
Only use fluids and fuels approved by Porsche. Your Porsche dealer will be pleased to advise you.
Engine oil change quantity with oil filter approx. 1.98 US gallons (7.5 liters)
Fuel tankapprox. 18.0 US gallons (68 liters), including approx. 3.17 US gallons (12 liters) reserve
Fuel octane rating
The engine is designed to provide optimum performance and fuel consumption if unleaded premium fuel with 98 RON/88 MON (93 CLC or AKI) is used. If unleaded fuels with octane numbers of less than RON 98/MON 88 (93 CLC or AKI) are used, the engine’s “Electronic Octane™ knock control” automatically adapts the ignition timing. Porsche recommends that you use fuel with at least 95 RON/85 MON (90 CLC or AKI) in your vehicle.
Windshield/headlight washer system approx. 1.59 US gallons (6 liters)
Reifendruck_TechnischeDaten.fm Seite 289 Mittwoch, 9. April 2014 3:12 15
292 Index
Coasting mode............................................................ 150 Cockpit......................................................................... 10Adjusting lighting................................................ 82Cooling system, temperature gauge .................... 92Engine oil temperature gauge ............................. 92Fuel gauge ........................................................ 94Odometer .......................................................... 93Speedometer..................................................... 92Tachometer ....................................................... 92Warning and indicator lights, overview ................. 90 Comfort Entry function ................................................... 34Comfort memory ......................................................... 143Comfort pressureSelecting ......................................................... 110Speed warning ................................................. 111 Comfort settings Storing on memory buttons .............................. 143Storing on the car key ...................................... 143 Comfort tire pressureSpeed warning ................................................. 111CompressorTire pressure ................................................... 198Control systemsOverview (PTM, PSM, PASM, PDCC, PTV Plus) .... 179Convertible top ............................................................. 67Care ............................................................... 233Closing.............................................................. 69Emergency operation ......................................... 70Opening ............................................................ 68 Convertible-top compartment lid Service position ................................................. 26Coolant Checking level ................................................. 242Topping up ...................................................... 242 Cooling systemWarning on multi-function display ......................... 92Cornering lightDynamic ............................................................ 80 Countersteering assistance .......................................... 182Courtesy lighting, Entry function ..................................... 80Crankcase ventilation ................................................... 226Cruise control Accelerating .................................................... 156Decelerating .................................................... 156Functional description....................................... 155Interrupting operation ....................................... 156Storing speed .................................................. 156Switching off ................................................... 157Switching on .................................................... 156Cupholder ................................................................... 194
DData carrier for vehicle data ........................................ 284Daytime driving lights .................................................... 79Diagnostic socket ............................................... 146, 267Digital speedometer ...................................................... 93Dimensions ................................................................ 288DimmingAdjusting brightness of instrument lighting ........... 82Adjusting brightness of interior lighting ................ 84Direction indicator, stalk ................................................ 82Displacement, Technical data ....................................... 285DoorDe-icing door lock............................................ 232Locking if persons/animals are remaining in vehicle .............................................................. 22Locking with car key (remote control) .................. 22Locking with Porsche Entry & Drive (keyless) ....... 22Malfunctions when opening and closing ............... 26Opening and locking from inside ......................... 23Unlocking with car key (remote control) ............... 21Unlocking with Porsche Entry & Drive (keyless) .... 21Door locking, automatic ................................................ 22Door opening in an emergency situation ......................... 22DoorsCabriolet windows ............................................. 68 Drink holder................................................................ 194Drive The vehicle cannot be unlocked .......................... 26 Drive-Off Assistant....................................................... 184Driver memory package .............................................. 143DrivingIn Sport mode ..................................................... 3On the race circuit ............................................... 3 Driving light assistantDaytime driving lights......................................... 79Dynamic cornering light ..................................... 80Low beam ......................................................... 79Switching on ..................................................... 79Driving offAutomatic parking brake release upondriving off ....................................................... 152Launch Control ................................................ 175Driving performance, Technical data ............................. 285DVDInstallation location .......................................... 170Navigation....................................................... 170Player ............................................................. 170Dynamic cornering light ................................................. 80Dynamic Engine Mounting (PADM)................................. 188
EElectric parking brake Automatic parking brake release upon driving off ........................................................ 151Emergency braking function .............................. 151Operating ........................................................ 151Releasing ........................................................ 151Testing on brake test stand....................... 221, 241Warning light.................................................... 151 Electrical SystemEmergency unlocking, front luggage compartment lid .............................................. 270Emergency flasher......................................................... 83Emergency key ....................................................... 17, 29Emergency operationFiller flap ......................................................... 229of ignition key/control unit in ignition lock............. 28of luggage compartment lid ................................ 26of sunroof.......................................................... 65of tailgate .......................................................... 26Emergency operation convertible top .............................. 70Emergency release Lids ................................................................ 270 Emergency starting for flat battery ............................... 273Emergency starting with jumper cables ......................... 273Emission control (Check Engine)Functional description......................................... 95Engine Break in hints ....................................................... 6Checking oil level ..................................... 101, 222Cooling system .................................................. 92Oil-level gauge ................................................. 101Starting ........................................................... 148Starting engine automatically (Auto Start Stop function) Starting manually (Auto Start Stop function) ....... 150Stopping ......................................................... 148Stopping automatically (Auto Start Stop function) 149Technical data.................................................. 285Topping up oil .................................................. 222Engine compartment lid Cabriolet ........................................................... 26Service position ................................................. 26Engine drag torque control (MSR)Functional description....................................... 182Engine oil.................................................................... 221Change quantity ............................................... 289Checking level ................................................. 222Checking oil level ............................................. 101Consumption ................................................... 285Engine oil pressure........................................... 129
14_991_Turbo_21.book Seite 292 Mittwoch, 9. April 2014 2:19 14
Index 295
Operating principle .............................................97 Telephone function .............................................53
NNavigation system .......................................................170Using via multi-function display ..........................104
OOctane rating ..............................................................230Octane rating, petrol ....................................................227Odometer Display ..............................................................93Resetting ...........................................................93 Off delay Switching on ......................................................80 Oil ..............................................................................221Change quantity ...............................................289Checking level..........................................101, 222Consumption .......................................................6General information ..................................221, 222Level gauge .....................................................101Oil pressure .....................................................129Oil-level warning on the multi-function display ......222Pressure gauge..................................................93Temperature gauge ............................................92Topping up.......................................................222On-board computerMeasuring oil level ............................................101Menu overview ...................................................99Multi-function display ..........................................96Operating principle .............................................96Storing and retrieving personal settings .............143Tire Pressure Monitoring ...................................105Opening and closing Brief overview ....................................................19Engine compartment lid ......................................24Locking vehicle door with car key(remote control) .................................................22Locking vehicle door with Porsche Entry & Drive...22Opening and locking vehicle door from inside .......23Unlocking vehicle door with car key(remote control) .................................................21Unlocking vehicle door with Porsche Entry & Drive ........................................21 Opening and closing engine compartment lid ...................24Opening and lockingStoring/retrieving personal settings ...................143Sunroof .............................................................63The vehicle cannot be unlocked ...........................26Operating in other countries .........................................227
Orientation lighting ........................................................ 84 Overboost function ...................................................... 188Oxygen sensor............................................................ 226
PPADM, Dynamic Engine Mounting ................................. 188PaintCare instructions ............................................. 234Polishing ......................................................... 234Preserving....................................................... 234Removing spots and stains ............................... 234Repairing damage............................................ 234Panic button ................................................................. 17ParkAssistFunctional description ...................................... 207Sensors .......................................................... 207Switching off ................................................... 209ParkingApplying the parking brake ............................... 151Locking the vehicle ............................................ 22PDK transmission ............................................ 172Parking aidSensors for ParkAssist ..................................... 207Swivelling down mirror glass............................... 50Parking brakeAutomatic parking brake release upondriving off ....................................................... 152Engaging the parking brake automatically whenthe vehicle is stationary .................................... 152Operating ........................................................ 151Releasing ........................................................ 151Testing on brake test stand ...................... 221, 241 Parking/pulling out Functional description, ParkAssist ..................... 207Sensors for ParkAssist ..................................... 207 Particle filter, maintenance instructions ......................... 244PASM (Porsche Active Suspension Management) Functional description ...................................... 185Overview ......................................................... 179Selecting chassis setup.................................... 186Warning message on the multi-function display ... 186PASS AIR BAG OFFWarning light in the center console ...................... 42Passenger airbagAutomatic deactivation of the passenger airbag ... 41Warning light in the center console ...................... 42Passenger mirrorAdjusting ........................................................... 49Adjusting as parking aid ..................................... 50Folding in .......................................................... 50
PCCB (Porsche Ceramic Composite Brake) General information ..............................................4PCM (Porsche Communication Management) .................170PDCC (Porsche Dynamic Chassis Control) .....................187Functional description .......................................187Overview .........................................................179Warning message on the multi-function display ...187PDKCoasting..................................................150, 174Coasting mode ................................................174 PDK selector lever Emergency release...........................................279PDK selector lever emergency release ..........................279PDK transmission ........................................................172Faults ..............................................................173Kickdown.........................................................176Limp-home mode .............................................178Selector-lever Positions ....................................174Shifting gears on the steering wheel ..................176Sport mode .....................................................175Warning messages ...........................................178Performance ...............................................................116Performance tests on roller-type test stands ..........221, 241Performance, Technical data ........................................285PetrolFuel gauge.........................................................94Fuel reserve warning ..........................................94Octane rating ...................................................227Portable fuel container......................................229Portable fuel containers ........................................4Quality .............................................................227Refueling .........................................................227Tank capacity ...................................................289Plastic components, care instructions ...........................235Porsche Active Safe.....................................................167Porsche Active Suspension Management (PASM)Functional description .......................................185Overview .........................................................179Warning message on the multi-function display ...186Porsche Ceramic Composite Brake (PCCB)General information ..............................................4 Porsche Communication Management (PCM) .................170Porsche Doppelkupplung Coasting..........................................................174Porsche Doppelkupplung (PDK) .....................................172Coasting..........................................................150Faults ..............................................................173Kickdown.........................................................176Launch Control.................................................175Limp-home mode .............................................178Selector-lever position ......................................172
14_991_Turbo_21.book Seite 295 Mittwoch, 9. April 2014 2:19 14
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