2014 PORSCHE 911 TURBO traction control

182 Driving and Driving Safety
Combined operation of PSM and PTV Plus
In order to ensure optimum stabilization of the vehicle, the center differential lock is influenced when PSM interventions occur on vehicles with PTV Plus.
Combined operation of PSM and PTM
In order to ensure optimum stabilization of the vehicle, torque distribution between the front and rear wheels is adapted and the differential lock is influenced when PSM interventions occur on vehicles with PTV Plus.
In the event of a PTM fault, PSM cannot be switched off.If PSM is switched off, it is switched on again automatically.
Automatic brake differential (ABD)
The ABD system controls the front and rear axles separately. If one wheel of an axle starts to spin, it is braked so that the other wheel on the same axle can be driven.
ABD recognizes different driving states, and it features control strategies adapted to these states. In situations in which little propulsive power is required, such as when the vehicle moves off on a level gravel surface, traction control already becomes active at low engine speeds. If a large amount of propulsive power is required, e.g. when driving off on an uphill slope or for rapid acceleration, the ABD system is adapted accordingly.
Anti-slip control (ASR)
The anti-slip control system prevents the wheels from spinning by adjusting the engine power, thereby ensuring good lane-holding ability and stable handling.
Engine drag torque control (MSR)
In conditions of excessive slip, the engine drag torque control system prevents all driven wheels from locking up when the vehicle is overrunning. This is also the case for downshifts on a slippery road.
Steering torque pulse
The steering torque pulse provides the driver with steering assistance when braking on road surfaces with differing friction values.Additional steering forces also assist the driver during counter steering.
Switching off PSM
fPress button for at least 1 second.PSM is switched off after a short delay.The indicator light on the button and the PSM OFF warning light on the instrument panel light up.The warning “ PSM off” appears on the multi-function display in the instrument panel.
When you brake in the ABS control range , the vehicle is stabilized even when PSM is switched off.
One-sided spinning of the wheels is prevented, even with PSM switched off.
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Driving and Driving Safety 187
This has the following advantages: – Improved traction.– Reduced load change responses when cornering at speed.– Improved driving stability at higher speeds.
PTV Plus changes to a more dynamic map when “ Sport Plus” is switched on.
Porsche Dynamic Chassis Control
(PDCC)
In spite of the advantages of PDCC, it is still the driver’s responsibility to adapt his driving style and maneuvers in line with road and weather conditions, as well as the traffic situation.
The increased safety that is provided should not induce you to take greater risks with your safety. The limits set by the physics of driving cannot be overcome, even with PDCC.Risk of accidents due to inappropriate speed cannot be reduced by PDCC and PTV Plus.
Porsche Dynamic Chassis Control (PDCC) is a system for roll stabilization of the vehicle body when driving.Driving comfort and driving safety are improved by active intervention of the anti-roll bars on the front and rear axles. Vehicle balance and agility are optimized.
No separate controls are available for the PDCC system.When you select a chassis setup in Porsche Active Suspension Management (PASM) the PDCC system automatically activates the corresponding on-road driving program.
For information on selecting a chassis setup:fPlease see the chapter “PORSCHE ACTIVE SUSPENSION MANAGEMENT (PASM)” on page 185.
Warning message
The warning message “ Fault of the PDCC
stabiliser ” appears on the multi-function display in the instrument panel if there is a system fault.
For information on warning messages on the multi-function display:fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.fAdapt your driving style according to the changed conditions.fContact an authorized Porsche dealer.
Checking hydraulic fluid
The hydraulic fluid is checked and changed regularly as part of servicing.
For information on maintenance:fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Loss of control over the vehicleWARNINGh
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Minor Repairs 245
Driving with damaged tires could cause you to lose control of the vehicle.fIf while driving, your vehicle experiences a sudden vibration or ride disturbance, and/or you suspect that possible damage to your tires or vehicle has occurred, you should immediately reduce your speed without excessive use of the brakes.fStop the vehicle as soon as possible, and inspect the tires.If you cannot determine the cause for the disturbance, have your vehicle towed to the nearest Porsche or tire dealer to have your vehicle or tire(s) inspected.fContinuing to operate the vehicle without correction could result in a loss of control.Example
Uniform Tire Quality Grading
Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width.
All passenger car tires must conform to Federal Safety Requirements in addition to these grades.
Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specific government test course. For example, a tire graded 150 would wear one and a half (1-1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.
Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B, and C and they represent the tire's ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance.
Information
The traction grade assigned to this is based on braking (straight-ahead) traction tests and does not include cornering (turned) traction, acceleration, hydroplaning or peak traction characteristics.
Temperature A, B, C
The temperature grades are A (the highest), B and C, representing the tire's resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel.Sustained high temperatures can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure.The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109.Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.
Tire Damage While Driving
DANGERh
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Minor Repairs 247
Risk of damage to the vehicle and to the tires.
Damage due to overloading is not covered by the vehicle warranty.
Tire damage may also be caused by overloading, and this damage is not covered by your tire warranty.fDo not overload your vehicle. Be careful about the roof load. fIf you plan to load the vehicle, first correct the tire pressure. Tire pressure for loaded vehicle can be found on the tire pressure plate and in the chapter technical data.fNever exceed the specified axle load.
fPlease see the chapter “LOADING INFORMATION” on page 204.
NOTICE
Example of a tire pressure plate
Tire Pressure plate
Information on the tire pressure plate
A Seating capacity
Maximum number of vehicle occupants, including the driver.B Vehicle load limit
Is the maximum total weight limit specified of the load (passengers and cargo) for the vehicle. This is the maximum weight of passengers and cargo that can be loaded into the vehicle. Please see the chapter “LOADING INFORMATION” on page 204.
C Original tire size
Size of tires mounted at the factory. D Recommended cold tire inflation pressure
These values are for cold tires (68 °F/20 °C).
Tire traction
When driving on wet or slushy roads, a wedge of water may build up between the tires and the road. This phenomenon is known as “hydroplane” and may cause partial or complete loss of traction, vehicle control or stopping ability.fReduce speed on wet surfaces.
HydroplaningWARNINGh
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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
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296 Index
Shifting gears on the steering wheel .................. 176 Sport mode ..................................................... 175Porsche Dynamic Chassis Control (PDCC) ..................... 187Functional description....................................... 187Overview ......................................................... 179Warning message on the multi-function display ... 187Porsche Dynamic Light System (PDLS)............................ 80Porsche Dynamic Light System Plus (PDLS Plus) ............. 81Porsche Entry & DriveInclination sensor ............................................. 217Interior surveillance .......................................... 217Locking the vehicle ............................................ 22Unlocking the vehicle.......................................... 21 Porsche Stability Management (PSM) Functional description............................... 180, 181Multi-function light in the tachometer.................. 183Overview ......................................................... 179Switching off ................................................... 182Switching on .................................................... 183Porsche Torque Vectoring (PTV)/(PTV Plus) Functional Description ................................................................. 186Porsche Torque Vectoring Plus (PTV Plus)Overview ......................................................... 179Porsche Traction Management (PTM)Functional description....................................... 180Portable fuel container ................................................. 229Power Steering ........................................................... 244Power windowsAdjusting after connecting battery ....................... 63Malfunctions ...................................................... 63Opening/closing windows with rocker switch ........ 62Overview of driver’s door control panel ................ 62Overview of passenger’s door control panel ......... 62Storing end position ........................................... 63PressureTires (bar/psi) .................................................. 287Protection against towing (inclination sensor)Switching off with car key (remote control) ......... 216Switching off with Porsche Entry & Drive ............ 217PSM (Porsche Stability Management)Functional description............................... 180, 181Multi-function light in the tachometer.................. 183Overview ......................................................... 179Switching off ................................................... 182Switching on .................................................... 183Warning light on the multi-function display .......... 273PTM (Porsche Traction Management)Functional description....................................... 180PTV Plus (Porsche Torque Vectoring Plus )Overview ......................................................... 179
PTV/PTV Plus Porsche Torque Vectoring ................................ 186Pulling out/parkingFunctional description, ParkAssist ..................... 207Sensors for ParkAssist..................................... 207
RRace circuit .................................................................... 3Racing Tires ............................................................... 1, 3RadioTips ................................................................ 168Radio remote control..................................................... 16Rain sensor Adjusting........................................................... 87Switching on ..................................................... 86 Rear axle steering Function.......................................................... 191 Rear fog lightAdjusting the driving light ................................... 80Switching on ..................................................... 79 Rear seat storage space ............................................... 35Rear spoiler ................................................................ 190Rear window wiperSwitching on intermittent operation ..................... 88Window wiping .................................................. 88 Rear-axle load ............................................................. 204Refueling .................................................................... 229RelaysReplacing........................................................ 267 Remote control ............................................................. 16 Changing battery in car key .............................. 275Locking vehicle door .......................................... 22Unlocking vehicle door ....................................... 21Replacement keys......................................................... 17Restraint systems for children Installing with LATCH system .............................. 46LATCH restraint system...................................... 46Prescribed installation direction (depending on weight of child) .................................................. 43 Reversing camera ....................................................... 209Rim Cleaner................................................................ 263Roll stabilisationPorsche Dynamic Chassis Control (PDCC) ......... 187Roll-over protection, Cabriolet ........................................ 48Roll-up sunblind ............................................................. 65Roof load ................................................................... 288Roof Transport System................................................ 200Fitting basic carrier.......................................... 200Roof load ........................................................ 288Weights .......................................................... 288
Roof transport system Safety notes .................................................... 200Running inTires ................................................................... 6
SSafety belts .................................................................. 36Care instructions .............................................. 237Fastening .......................................................... 37Safety-belt pretensioners, functional description ... 37Warning light on the tachometer .......................... 37Safety compliance sticker ............................................ 284Safety-belts Opening belt buckle............................................ 38 Sealant/sealing set for defective tires ........................... 265Seals, care instructions................................................ 236Seat heatingSwitching off...................................................... 35Switching on ...................................................... 35Seat memory ........................................................ 34, 143Seat ventilation.............................................................. 35Switching off...................................................... 35Switching on ...................................................... 35 Seat-belt pretensioner Functional description......................................... 37Seats Adjusting seat position ....................................... 32Adjusting the front seat....................................... 32Child restraint system......................................... 42Head restraints .................................................. 32Seat adjustment ................................................. 32Storing/retrieving seat position ......................... 143Security wheel bolts Storage ........................................................... 198Selector lever position display ........................................ 94Selector-lever position display, PDK transmission ........... 173Setting air quantityAir-conditioning system ....................................... 58Setting automatic air-recirculation modeAir-conditioning system ....................................... 57Setting fanAir-conditioning system ....................................... 58Setting temperatureAir-conditioning system ....................................... 58Setting the date .......................................................... 124Setting the time........................................................... 124SettingsAdjusting on multi-function display ..................... 117Retrieving when opening the vehicle .................. 144Storing on the key ............................................ 143Storing personal settings .................................. 143
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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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