2014 PORSCHE 911 TURBO Owners Manual

Driving and Driving Safety 151
Auto Start Stop function display
If the engine was stopped automatically by the Auto Start Stop function, the indicator light on the multi-function display in the instrument panel will light up green.
If the Auto Stop function is not available or if no driver is detected in the vehicle after the engine has stopped automatically (driver’s seat belt not fastened or driver’s door open), the indicator light on the multi-function display in the instrument panel will light up yellow when the vehicle is stationary.
The Auto Start Stop system has detected that: – At least one precondition for stopping the engine automatically is not met.
or – There is at least one exception for the Auto Start Stop function.fPlease see the chapter “PRECONDITIONS FOR STOPPING THE ENGINE AUTOMATICALLY” on page 149.fPlease see the chapter “EXCEPTIONS FOR THE AUTO START STOP FUNCTION” on page 150.
Information
If the indicator light in the multi-function display continuously lights up yellow when the vehicle is stopped and if the engine does not stop regularly when the vehicle is stopped despite the fact that the preconditions for stopping the engine automatically are met, have the Auto Start Stop system checked the next time you visit the workshop.
Fault reporting
If there is a fault, the warning message “ Start/ Stop operation deactivated ” will appear on the multi-function display in the instrument panel.fHave the fault corrected at an authorized Porsche dealer.
Electric Parking Brake
The electric parking brake acts on the rear wheels and serves to secure the vehicle while parked.
Applying the parking brake
fPress switch .The brake warning light on the instrument panel lights up.
For information on indicator lights and warning lights on the instrument panel: fPlease see the chapter “INSTRUMENT PANEL USA MODELS” on page 90.
Automatic engine stop and restart readiness
No engine stop or restart readiness
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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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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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156 Driving and Driving Safety
If the current traffic situation does not allow you to drive safely at a constant speed and with sufficient distance to the vehicle in front, using the cruise control can cause accidents.fDo not use the cruise control in heavy traffic, in city traffic, on twisting roads or under unfavorable road conditions (e.g. wintry or wet conditions, varying road surfaces).fObserve all local and national speed limits.fDo not reach through the steering-wheel spokes while driving.
Switching cruise control readiness on
fPress button A on the control stalk.
Maintaining and storing speed
1.Accelerate or decelerate to the desired speed using the accelerator pedal.2. Push the control stalk on the steering wheel forward (position 1). The current driving speed is now stored as the desired speed, which will be maintained automatically.
Accelerating (e.g. to overtake)
Variant 1
fIncrease the speed as usual with the accelerator pedal.When you ease off the accelerator, the previously stored value is set again.
Variant 2
fPush the control stalk on the steering wheel forward (position 1). The desired speed is increased in steps of 1 mph (1 km/h).orPress the control stalk on the steering wheel forward and keep it pressed (position 1). The desired speed is increased in steps of 5 mph (10 km/h).
The new desired speed is displayed on the multi- function display in the instrument panel.
Decelerating
fBriefly pull the control stalk on the steering wheel towards the steering wheel (position 2). The desired speed is decreased in steps of 1 mph (1 km/h).orPull the control stalk on the steering wheel towards the steering wheel and keep it pulled (position 2). The desired speed is decreased in steps of 5 mph (10 km/h).
The new desired speed is displayed on the multi- function display in the instrument panel.
Downshifts are carried out to help maintain the pre-selected speed (especially when driving downhill).
Interrupting cruise control operation – OFF
The speed driven before the interruption remains stored in the memory and can be reactivated by pressing the control stalk.fPlease see the chapter “RESUMING THE STORED SPEED – RESUME” on page 157.fPress the control stalk down (position 3). orOperate brake pedal or move PDK selector lever to N position.
Cruise control operation is interrupted automatically:
– If the set vehicle speed is exceeded by more than approx. 16 mph (25 km/h) for longer than 20 seconds.– If Porsche Stability Management (PSM) intervenes for longer than 0.5 seconds.
Misuse of Cruise Control
Cruise control readiness
The grey symbol on the multi-function display in the instrument panel indicates readiness.
Desired speed
The desired speed that was stored is displayed under the cruise control symbol, which has now turned orange.
WARNINGh
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Resuming the stored speed – RESUME
fPress the control stalk up (position 4). Cruise control accelerates/decelerates the vehicle to the stored speed.
Information
The stored speed should only be recalled if traffic and road conditions are conducive to driving at that speed.
Switching cruise control readiness off
fPress button A on the control stalk. The memory is cleared and the readiness symbol disappears.
The stored desired speed is cleared when the ignition is switched off when the vehicle is parked.
Adaptive Cruise Control
Adaptive cruise control maintains any selected speed between approx. 20–100 mph (30–160 km/h) when driving on open roads without you having to use the accelerator.
If a vehicle traveling ahead of you in the same lane is detected as driving slower than the selected speed, adaptive cruise control will automatically maintain a set distance from the vehicle in front.Adaptive cruise control slows your vehicle down if the distance to the vehicle ahead becomes too short and accelerates your vehicle if the distance increases.
If the current traffic situation does not allow you to drive safely at a constant speed and with sufficient distance to the vehicle in front, using the adaptive cruise control can cause accidents.fDo not use the adaptive cruise control in heavy traffic, in construction traffic, in city traffic, on twisting roads or under unfavorable road conditions (e.g. wintry or wet conditions, varying road surfaces).fBrake the vehicle immediately with the footbrake if the deceleration of the adaptive cruise control is not sufficient.fMake sure that it is possible to take over control of the vehicle at all times.fObserve all local and national speed limits.
Adaptive cruise control will not detect stationary or slowly moving vehicles, pedestrians, objects on the road, oncoming vehicles in the same lane or cross traffic.fYou must pay attention to your vehicle’s position in relation to other objects and inter-vene as needed to ensure safe driving.fAlways keep the direction of travel in your field of view.
Misuse of Adaptive Cruise ControlWARNINGh
Adaptive Cruise Control Limits.WARNINGh
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158 Driving and Driving Safety
Radar sensor
Adaptive cruise control uses a radar sensor located in the center of the front apron ( arrow).
Information
fAlways keep the radar sensor clean and free of ice and snow to ensure that it is fully functional.
For car care instructions:fPlease see the chapter “CAR CARE INSTRUCTIONS” on page 231.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 8 in. (20 cm) between the radiator and your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Radar sensor vision can be impaired by rain, snow, ice or heavy spray. Vehicles in front will not be detected properly or may not be detected at all.fDo not use adaptive cruise control under these conditions.
Warning message
Adaptive cruise control can be deactivated automatically if the radar sensor is very dirty or is covered in ice or by an obstacle, in unfavorable weather conditions (heavy rain) or when driving through tunnels.The message “ ACC/PAS unavailable Service required ” will appear on the multi-function display in the instrument panel.
For information on warning messages on the multi- function display:fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Information
This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada.Operation is subject to the following two condi-tions:1. This device may not cause harmful interfe- rence, and2. this device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications made to this equipment not expressly approved by Porsche may void the FCC authorization to operate this equipment.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communica-tions. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.– This Class A digital apparatus complies with Canadian ICES-003.Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
Radiofrequency Radiation Exposure
Weather Impairment of Radar Sensor
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WARNINGh
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