2014 PORSCHE 911 TURBO brakes

3
The reduced tire tread depth means that there is an increased risk of aquaplaning on wet roads. fWhen driving on wet or mud-covered roads reduce speed significantly.
Sport tires have a smaller tread depth, and thus can reach their wear limit sooner.It is important to check tire wear frequently to avoid risk of serious personal injury or death from worn tires.fCheck tire wear frequently.
Driving on Race Circuit
(e.g. Sports Driving Schools, Club
Sport Events)
Brake fluid, brake pads and brake disks
Brake fluid absorbs moisture from the air over time. This accumulation of water lowers the boiling point and can impair braking action if the brakes are subjected to high temperatures, such as can occur on race circuits (sports driving school, Club Sport events).
The brake fluid should therefore not be more than 12 months old if the vehicle is driven on race circuits (sports driving school, Club Sport events).fFor more information, see the “ Maintenance” booklet.
Wear on the brake pads and brake disks depends to a great extent on the driving style and driving conditions. Wear on the brake components is increased as a result of high temperatures, such as can occur on race circuits (sports driving school, Club Sport events). fBefore and after driving on race circuits (e.g. sports driving school, Club Sport events), it is important therefore to carry out a professional inspection of the brake pads and brake disks for wear.
Racing tires
The fitting of racing tires (e.g. slicks) for sporting events is not approved by Porsche.Very high cornering speeds can be achieved with racing tires. The resulting transverse acceleration values would jeopardize the adequate supply of oil to the engine.Porsche therefore refuses to accept any guarantee or liability for damage occurring as a result of non-compliance with this provision.
Setting and operating vehicle
components when driving
Setting or operating the multi-function display, radio, navigation system, telephone or other equipment when driving could distract you from the traffic. You could lose control of the vehicle resulting in serious personal injury or death.fOperate the components while driving only if the traffic situation allows you to do so safely.fCarry out any complicated operating or setting procedures only with the vehicle stationary.
Loss of Road Surface Contact, Control over the Vehicle and Braking Ability
Worn Tires
DANGERh
DANGERh
Operating Components While Driving
WARNINGh
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4
Engine Exhaust
Engine exhaust is dangerous if inhaled. Engine exhaust fumes have many components which you can smell. They also contain carbon monoxide (CO), which is a colorless and odorless gas.Carbon monoxide can cause unconsciousness and even death if inhaled.fNever start or let the engine run in an en-closed, unventilated area.It is not recommended to sit in your car for prolonged periods with the engine on and the car not moving.
Engine exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.In addition, certain fluids contained in vehicles and certain products of component wear contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Hot Exhaust Pipes
The exhaust pipe is hot when the vehicle is running and remains hot for some time after the vehicle is turned off.fTo prevent injury, make a point of noting where your vehicle’s exhaust pipe is, avoid placing your legs near the exhaust pipe, and closely supervise children around the vehicle during time when the exhaust pipe could be hot.A hot exhaust pipe can cause serious burns.
Portable Fuel Containers
Portable fuel containers may leak, whether they are full or partially empty. Fuel leaking from a portable container carried in your vehicle could, in case of an accident, cause a fire or explosion.fNever carry additional fuel in portable containers in your vehicle.
Ground Clearance
Risk of damage to the vehicle due to lower ground clearance.
The vehicle may touch the ground as a result of reduced ground clearance.fDrive carefully and slowly on steep slopes (e. g. parking lots, curbs, uneven roads, lifting platforms etc.).fAvoid steep ramps.
Porsche Ceramic Composite Brake
(PCCB)
fPlease see the chapter “BRAKES” on page 152.
The high-performance brake system is designed for optimal braking effect at all speeds and temperatures.Certain speeds, braking forces and ambient conditions (such as temperature and humidity) therefore might cause brake noises.
Wear on the different components and braking system, such as brake pads and brake disks, depends to a great extent on the individual driving style and the conditions of use and therefore cannot be expressed in actual miles on the road.
The values communicated by Porsche are based on normal operation adapted to traffic. Wear increases considerably when the vehicle is driven on race tracks or through an aggressive driving style.fPlease consult an authorized Porsche dealer about the current guidelines in effect before such use of your vehicle.
Engine Exhaust Inhalation
California Proposition 65
DANGERh
WARNINGh
Hot Exhaust Pipes
Portable Fuel Container Leaks
WARNINGh
DANGERh
NOTICE
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8 Contents
Performance Menu ..................................... 116 ACC Menu .................................................. 117Vehicle Settings on theMulti-Function Display .................................. 117Overview of Warning and Information Messages ............................. 129
Personal Settings ............................. 141
Brief Overview – Personal Settings ............ 142 Storing personal settings ............................ 143
Driving and Driving Safety ................ 145
Diagnostic Socket....................................... 146Ignition Lock............................................... 146Starting and Stopping the Engine ................. 147Auto Start Stop function .............................. 149Electric Parking Brake ................................. 151Brakes ....................................................... 152Cruise Control ............................................ 155Adaptive Cruise Control ............................... 157Car Audio Operation/Tips ............................ 168Porsche Communication Management (PCM) 170USB/iPod® and AUX ................................... 171Voice Control.............................................. 171Porsche Doppelkupplung (PDK) .................... 172Selector-lever Positions .............................. 174Limp-home mode ........................................ 178Transmission and Chassis Control Systems .. 179Porsche Traction Management (PTM) ........... 180Porsche Stability Management (PSM)............ 181HOLD function: Drive-Off Assistant, Standstill Management ................................ 184ABS Brake System (Anti-lock Brake System) . 184Porsche Active Suspension Management (PASM) ................................... 185Porsche Torque Vectoring (PTV Plus)............ 186Porsche Dynamic Chassis Control (PDCC)..... 187Dynamic Engine Mounting (PADM) ................ 188
“Sport” and “Sport Plus” mode .....................188 Extending Front and Rear Spoilers ................190Rear Axle Steering ......................................191
Storage, Luggage Compartment and Roof Transport System ..................... 192
Storage......................................................193 Drinks Holder/Cupholder .............................194Ashtray ......................................................195Cigarette Lighter .........................................196Sockets .....................................................196Luggage Compartment................................197Roof Transport System................................200Loading Information ....................................204
Parking ........................................... 206
ParkAssist ..................................................207Reversing Camera.......................................209Swivelling Down Mirror Glass as Parking Aid..210Garage Door Opener HomeLink®
(Universal Remote Control)...........................211
Alarm System and Theft Protection ... 215
Alarm System and Passenger Compartment Monitoring.............216Immobilizer.................................................217Theft Protection ..........................................217
Maintenance and Car Care ............... 218
Exercise Extreme Caution when Working on your vehicle...............................219Engine Oil ...................................................221Checking Engine Oil Level ............................222Topping Up Engine Oil .................................222Washer Fluid windshield ...............................224Wiper Blades ..............................................224Emission Control System .............................225
How Emission Control Works....................... 226 Fuel Economy ............................................ 226Operating Your Porsche in other Countries ... 227Fuel........................................................... 227Portable Fuel Container............................... 229Fuel Recommendations............................... 230Fuel Evaporation Control ............................ 231Car Care Instructions.................................. 231
Minor Repairs .................................. 239
Exercise Extreme Caution when Working on your vehicle .............................. 240Checking the Coolant Level and Adding Coolant .......................................... 242Brake Fluid ................................................ 243Electromechanical Power Steering............... 244Changing Air Cleaner .................................. 244Changing Particle Filters ............................. 244Tires and Wheels........................................ 244Changing Wheels........................................ 254Wheel Attachment Faces............................. 257Wheel Bolts ............................................... 257Wheels with Central Lock ............................ 258Central Bolts .............................................. 258Changing a Wheel....................................... 258Rim Cleaner ............................................... 263Central Bolt Emergency Fastening ............... 263Flat Tire ..................................................... 265Electrical System ....................................... 267Battery (12 volt) ......................................... 271External Power Supply, Emergency starting with jumper cables ......................... 273Changing Car Key (Remote Control) Battery . 275Replacing bulbs.......................................... 276Headlights ................................................. 276Headlight Adjustment.................................. 277Towing ...................................................... 278Fire extinguisher......................................... 282
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Driving and Driving Safety 145
Driving and Driving Safety
Diagnostic Socket .......................................146 Ignition Lock ...............................................146Starting and Stopping the Engine .................147Auto Start Stop function ..............................149Electric Parking Brake .................................151Brakes .......................................................152Cruise Control.............................................155Adaptive Cruise Control ...............................157Car Audio Operation/Tips ............................168Porsche Communication Management (PCM) .170USB/iPod® and AUX....................................171Voice Control ..............................................171Porsche Doppelkupplung (PDK) ....................172Selector-lever Positions ..............................174Limp-home mode ........................................178Transmission and Chassis Control Systems ..179Porsche Traction Management (PTM)............180Porsche Stability Management (PSM) ............181HOLD function: Drive-Off Assistant, Standstill Management ................................184ABS Brake System (Anti-lock Brake System) ..184Porsche Active Suspension Management (PASM) ...................................185Porsche Torque Vectoring (PTV Plus) ............186Porsche Dynamic Chassis Control (PDCC) .....187Dynamic Engine Mounting (PADM) ................188“Sport” and “Sport Plus” mode .....................188Extending Front and Rear Spoilers ................190Rear Axle Steering ......................................191
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152 Driving and Driving Safety
Releasing the parking brake
The electric parking brake can only be released when the ignition is switched on.1. Press the brake pedal. 2. Pull switch . The brake warning light on the instrument panel goes out.
Automatic electric parking brake release when driver’s intention to drive off is detected
If the engine is running, the driver’s door is closed and the driver’s safety belt is fastened, it is still possible to drive off normally even though the parking brake is on.The electric parking brake detects the driver’s intention to drive off and releases automatically.The warning light on the instrument panel goes out.
If the driver’s door is not closed or the driver’s safety belt is not fastened, the electric parking brake will not be released automatically when the driver attempts to drive off.The message “ Release parking brake” appears on the multi-function display in the instrument panel. The brake warning light on the instrument panel and the indicator light on the switch start to flash.
For information on warning messages on the multi-function display: fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Engaging the electric parking brake automatically
The electric parking brake engages if PDK selector-lever position D, R or M is selected when the vehicle is stationary and the driver’s door is opened. The brake warning light on the instrument panel and the indicator light on the switch light up. For information on warning messages on the multi-function display: fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Emergency braking function
If the vehicle cannot be stopped by conventional braking, you can decelerate sharply and stop the vehicle using the electric parking brake.fPress switch and keep it pressed.The message “ Emergency braking” appears on the multi-function display in the instrument panel. The brake warning light on the instrument panel and the indicator light on the switch start to flash.The emergency braking function is deactivated when you release the switch.
Emergency braking takes place with very high braking power. The following traffic may be endangered.fOnly use the emergency braking function in an emergency situation.fDo not use the emergency braking function to stop the vehicle when driving normally.
Brake warning light USA
Brake warning light Canada
If the electric parking brake could not be applied fully when the vehicle is stopped, the brake warning light on the instrument panel starts to flash.
For information on warning messages on the multi- function display: fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Brakes
fMake it a habit to check the operation of your brakes before driving.
Keep in mind that the braking distance increases very rapidly as the speed increases. At 60 mph (100 km/h), for example, it is not twice but four times longer than 30 mph (50 km/h). Tire traction is also less effective when the roads are wet or slippery.fTherefore, always maintain a safe distance from the car in front of you.
Severe decelerationWARNINGh
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Driving and Driving Safety 153
Vehicles without Porsche Ceramic Composite Brake (PCCB)
Even though the brake disks consist of alloyed gray cast iron, they will unavoidably start to corrode if your car is parked for an extended period. The brakes will tend to “rub” as a result.The nature, extent and effects of corrosion depend on the amount of time the vehicle was parked, whether road salt or grit was spread and whether grease-dissolving agents were used in car washes.
If the braking comfort is noticeably impaired, we recommend having the brake system checked by experts at an authorized Porsche dealer.
Brake system function
Your Porsche is equipped with a power assisted hydraulic dual circuit brake system with disk brakes at the front and rear. Both circuits function independently. One brake circuit operates the front left and rear right wheel and the other operates the front right and rear left wheel.
If one brake circuit has failed, the other will still operate. However, you will notice an increased pedal travel when you apply the brakes. Failure of one brake circuit will cause the stopping distance to increase.
Your vehicle is equipped with an emergency function in the extreme event of a complete hydraulic failure of the brake system. If your brake pedal goes all the way to the floor, do not pump the brakes. fPush the brake pedal down firmly and hold it in that position. A mechanical linkage activates the second circuit, and you will be able to bring the vehicle to a stop.fAfter bringing your vehicle to a complete stop, avoid driving the vehicle and instead have it towed to the nearest authorized Porsche dealer for repair.
Brake system warning light
You can check the functionality of the brake system warning light by switching the ignition to the “On” position (position 1) and verifying that the warning light illuminates.
Brake warning light USA
Brake warning light Canada
The warning light in the instrument panel lights up. A message will be displayed on the multi-purpose display of the instrument panel if the brake fluid level is too low, or (if the brake pedal travel has increased) one of the two brake circuits has failed.
A greater braking pressure will be required, stopping distances will be longer and the braking behavior will change, particularly in curves.
With correctly adjusted brakes and a correctly working brake system, the pedal travel to the point of brake application should be 1-3/16 in. to 1-9/16 in. (30 to 40 mm). Whenever the brake pedal travel exceeds this value, have the brake system checked.
Brake pedal
Unsuitable or incorrectly fixed floor mats or objects can reduce the travel of the brake pedal or prevent you applying the brake pedal.fAlways check the movement of the brake pedal before driving and make sure that it is not obstructed by a floor mat or any other object.fSecure the floor mat to prevent it from sliding into positions that could interfere with the safe operation of your vehicle.Your authorized Porsche dealer will be glad to offer you floor mats of the correct size including a securing possibility.
Information
In case one of the two brake circuits fails, increased pedal travel is required to bring your vehicle to a full stop.
Brake Hydraulic Failure Recovery
WARNINGh
Obstruction of Brake Pedal
WARNINGh
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154 Driving and Driving Safety
fBefore descending a steep grade, reduce speed and shift the transmission into a lower gear to control speed. fDo not “ride the brakes” by resting your foot on the pedal when not intending to apply brake pressure.fDo not hold the pedal down too long or too often. This could cause the brakes to overheat and lose braking power.
Brake booster
The brake booster assists braking only when the engine is running.
When the car is moving while the engine is not running, or if the brake booster is defective, more pressure on the brake pedal is required to bring the car to a stop.
Moisture, road salt or grit on brakes affects braking. Brakes will dry after a few cautious brake applications.
Driving through water may reduce the traction. Moisture on brakes from road water, car wash, or a coating of road salt or grit may affect braking efficiency.fCautiously apply brakes to test and dry the brakes after exposure to road water, etc.
The brake booster is ready for operation only while the engine is running. If the engine is switched off or there is a defect in the brake booster, much greater force has to be applied to the pedal when braking. fVehicles with defective brakes must not be towed and must be transported on a flat bed.
For information on towing:fPlease see the chapter “TOWING” on page 278.
Brake wear
Your car has excellent brakes, but they are still subject to wear. The rate at which they wear depends on how the brakes are used.fHave the brake system inspected at the intervals recommended in your Maintenance Booklet.
Brake system warning light
You can check the functionality of the brake system warning light by switching the ignition to the “On” position (position 1) and verifying that the warning light illuminates.
A warning message will be displayed on the multi- purpose display of the instrument panel if the brake pads are worn, excessively.fDo not continue to operate the vehicle.Have your authorized Porsche dealer inspect or replace the brake pads.
For information on warning messages on the multi-purpose display:fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Brake pads and brake disks
Wear on the brake pads and brake disks depends to a great extent on the driving style and the conditions of use and therefore cannot be expressed in actual miles on the road.
The high-performance brake system is designed for optimal braking effect at all speeds and temperatures.
Certain speeds, braking forces and ambient conditions (e.g. temperature and humidity) can therefore cause the brakes to “squeal”.
Unsuitable or incorrectly installed floor mats or objects can obstruct the movement of the brake pedal or prevent application of the brake pedal.fDo not obstruct the pedal travel with floor mats or other objects.
Riding the Brakes
Wet Brakes
WARNINGh
WARNINGh
Loss of Braking PowerWARNINGhBrake wear warning message USA
Brake wear warning message Canada
Obstructed Brake PedalWARNINGh
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Driving and Driving Safety 155
In heavy rain, while driving through water or after leaving a car wash, the braking action may be delayed and increased pressure may be required.fFor this reason, keep further back from the vehicle in front and “dry” the brakes by applying them at intervals. Make sure that the traffic behind you is not affected.
After a long drive over salted or gritted roads, a coating may form on the brake disks and pads that significantly reduces friction and therefore also braking effect.fEven though the brake disks consist of alloyed gray cast iron, they will unavoidably start to corrode if your vehicle is parked for an extended period. The brakes will tend to “rub” as a result.The nature, extent and effects of corrosion depend on the amount of time the vehicle was parked, whether road salt or grit was spread and whether grease-dissolving agents were used in car washes (not on vehicles with Porsche Ceramic Composite Brake).To prevent corrosion of the brake disks, “brake them dry” before parking the vehicle (not on vehicles with Porsche Ceramic Composite Brake).If braking comfort is noticeably impaired, we recommend that you have the brake system checked by experts at an authorized Porsche dealer.
fTo relieve the brake system on downhill stretches, change down to a lower gear in good time (engine braking).If engine braking is insufficient on steep stretches, operate the footbrake at intervals. Avoid continuous braking as it overheats the brakes and reduces the braking effect.
For information on brake fluid and checking the brake fluid level:fPlease see the chapter “BRAKE FLUID” on page 243.
New brake pads or linings
New brake pads have to be “broken in”, and therefore only attain optimal friction when the car has covered several hundred miles or km.The slightly reduced braking ability must be compensated for by pressing the brake pedal harder. This applies whenever the brake pads and/or brake disks are replaced.
A - Switch cruise control on/off 1 - Set/increase desired speed 2 - Reduce desired speed 3 - Interrupt (OFF) 4 - Return to set speed (RESUME)
Cruise Control
Cruise control maintains any selected speed between approx. 20–150 mph (30–240 km/h) without you having to use the accelerator.Cruise control is operated using the control stalk at the bottom left of the steering wheel.Downshifts are carried out to help maintain the pre-selected speed (especially when driving downhill).
Wet Brakes
Reduced Braking Efficiency
WARNINGh
WARNINGh
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