150 Driving and Driving Safety
Information
The engine will start automatically in certain situations, e.g. if the vehicle starts rolling, if air conditioning causes reduced comfort, or if the brake vacuum is reduced.The engine is stopped again automatically if the preconditions for stopping the engine automatically are then met again.
Exceptions for the Auto Start Stop function
The Auto Start Stop function is deactivated e.g.: – When Sport mode is activated.– When PSM is off.– In maneuvering mode.– When A/C MAX mode is activated.– When the “Windshield defrost” function is active. – At altitudes above approx. 9,843 ft. (3,000 meters)
For information on switching on and off the Auto Start Stop function:fPlease see the chapter “SWITCHING AUTO START STOP FUNCTION AND COASTING MODE ON AND OFF” on page 150.
The Auto Start Stop function is available with limited functionality in the following situations, e.g.:– If the air conditioning or passenger compartment heating is operated at a high setting or if the defrost function is run for long time periods.– If the battery charging condition is low.– On upward or downward slopes.– During internal vehicle test procedures, e.g. automatic engine checks.
Information
If one of these situations arises after the engine has stopped automatically, the engine can be restarted automatically.
Reaction after leaving the vehicle (selector-lever position D or N selected)
If the vehicle is left after an automatic stop when PDK selector-lever position D or N is engaged, an automatic engine start is executed to remind the driver that the Auto Start Stop function is still active.
In selector-lever position D, the electric parking brake is additionally engaged.
The brake warning light on the instrument panel and the indicator light on the switch light up.fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Reaction after leaving the vehicle (selector-lever position P selected)
If the vehicle is left after an automatic stop when PDK selector-lever position P is engaged, in order to open the garage door, for example, no automatic engine start is executed. Auto Start Stop mode is resumed if the driver closes the driver’s door and presses the brake within 30 seconds of leaving the vehicle.
If one of these requirements is not met, the engine has to be started manually. The
message “ Please start engine manually” will appear on the multi-function display in the instrument panel.fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Switching Auto Start Stop function and coasting mode on and off
Switching off
fPress button . The indicator light on the button lights up.Automatic stopping of the engine is suppressed and gliding mode is switched off.
Switching on
fPress button . The indicator light on the button goes out.The engine is automatically stopped when the vehicle stops and gliding mode is switched on.fPlease see the chapter “DRIVING IN COASTING MODE” on page 174.
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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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168 Driving and Driving Safety
Acute warning (acoustic, visual and tangible)
If the driver does not react to the prewarning by braking, this is quickly followed by an acute warning, which involves a braking jolt as well as the acoustic and visual warning.
A braking jolt is felt in the vehicle as a result of a very quick build-up of brake pressure. This alerts the driver to the traffic situation. The driver can still prevent a collision by reacting accordingly in this dangerous situation.
Risk of collision with the vehicle in front.fBrake immediately.
Information
The situations described below lead to the assumption that the driver is driving carefully and the prewarning and acute warning functions are disabled:– The driver drives around tight corners.– The driver is braking.– If the driver accelerates sharply, this action is interpreted as an active driving request (e.g. indicating the driver’s intention to overtake).
Switching Porsche “Active Safe” warnings on/off
The latent warning and prewarning functions are switched off by default. The acute warning function is active. Latent warnings and prewarnings can be activated under “ Prewarning on” on the multi-function display.
The settings remain stored when the ignition is switched on and off.fPLEASE SEE THE CHAPTER “ACTIVE SAFETY – PORSCHE “ACTIVE SAFE”” on page 167.
Car Audio Operation/Tips
For radio operation see your radio manual which is included with your on-board literature.
FM reception
A vehicle is not an ideal place to listen to a radio. Because the vehicle moves, reception conditions are constantly changing. Buildings, terrain, signal distance and noise from other vehicles are all working against good reception. Some conditions affecting FM may appear to be problems when they are not.
The following characteristics are completely normal for a given reception area, and they do not indicate any problem with the radio itself.
Information
Electronic accessories should only be installed by your authorized Porsche dealer.Equipment which has not been tested and approved by Porsche may impair radio reception.
Fading and drifting
FM range is limited to about 25 miles (40 km), except for some high power stations.
If a vehicle is moving away from the desired station's transmitter, the signal will tend to fade and/or drift. This condition is more prevalent with FM than AM, and is often accompanied by distortion.Fading and drifting can be minimized to a certain degree by careful attention to fine tuning or selection of a stronger signal.
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Maintenance and Car Care 225
windshield. These wax residues can be removed only by using window cleaner concentrate.– The wiper blades may be damaged or worn.fHave damaged wiper blades replaced immediately.fPlease see the chapter “WASHER FLUID WINDSHIELD” on page 224.
Replacing wiper blades
fAfter switching off the ignition, press the wiper stalk down once.The wipers move upwards to an angle of approx. 45°.fPlease read the separate instructions provided by the wiper blade manufacturer.fWe recommend that you get your authorized Porsche dealer to replace the wiper blades.
Risk of damage. If the wiper blades are not changed properly, they can come loose when the car is moving.fCheck that the wiper blades are seated securely.The wiper blades must engage properly in the wiper arm.
Emission Control System
In the interest of clean air
Pollution of our environment has become a problem that is of increasing concern to all of us. We urge you to join us in our efforts for cleaner air in controlling the pollutants emitted from the automobile.
Porsche has developed an emission control system that controls or reduces those parts of emissions that can be harmful to our environment. Your Porsche is equipped with such a system.
Porsche warrants the Emission Control System in your new car under the terms and conditions set forth in the Warranty Booklet.
You, as the owner of the vehicle, have the responsibility to provide regular maintenance service for the vehicle and to keep a record of all maintenance work performed. To facilitate record keeping, have services performed by authorized Porsche dealers. They have Porsche trained technicians and special tools to provide fast and efficient service.
To assure efficient operation of the Emission Control System:
fHave your vehicle maintained properly and in accordance with the recommendations described in your Maintenance Booklet. Lack of proper maintenance, as well as improper use of the vehicle, will impair the function of the emission control system and could lead to damage.
fDo not alter or remove any component of the emission control system.fDo not alter or remove any device, such as heat shields, switches, ignition wires, valves, etc., which are designed to protect your vehicle's emission control system. In addition to serious engine damage, this can result in a fire if excess raw fuel reaches the exhaust system.fDo not continue to operate your vehicle if you detect engine misfire or other unusual operating conditions.
Parking
The exhaust system becomes very hot when the engine is running and remains hot for some time after the vehicle is turned off. Flammable material close to the exhaust system could ignite.fDo not park or operate your vehicle in areas where the hot exhaust system may come in contact with dry grass, brush, fuel spill or other flammable materials.fIf your car catches on fire for any reason, call the fire department. Do not endanger your life by attempting to put out the fire.
NOTICE
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226 Maintenance and Car Care
Undercoating
Additional undercoating or rust protection agents on or near the exhaust system can become too hot when driving and ignite, causing a fire.fDo not apply additional undercoating or rust protection agent on or near the exhaust manifolds, exhaust pipes, catalytic converters or heat shields. During driving the substance used for undercoating could overheat and ignite.
How Emission Control Works
When an automobile engine is running, it uses energy generated through the combustion of a mixture of air and fuel. Depending on whether a car is driven fast or slowly or whether the engine is cold or hot, some of the fuel (hydrocarbons) may not be burned completely, but may be discharged into the engine crankcase or exhaust system. Additional hydrocarbons may enter the atmosphere through evaporation of fuel from the fuel tank. These hydrocarbons (HC), when released into the air, contribute to undesirable pollution.
In addition, carbon monoxide (CO) and oxides of nitrogen (NOx) contribute to engine emissions. They, too, are formed during the combustion process and discharged into the exhaust system.
To reduce these pollutants, your Porsche is equipped with a precisely calibrated fuel injection system to assure a finely balanced air/fuel mixture under all operating conditions.
Oxygen sensor
The oxygen sensor, installed in the exhaust pipe continuously senses the oxygen content of the exhaust and signals the information to an electronic control unit. The control unit corrects the air/fuel ratio, so the engine always receives an accurately metered air/fuel mixture.
Crankcase ventilation
Through crankcase ventilation, undesirable emissions from the engine crankcase are not permitted to reach the outside atmosphere. These emissions are recirculated from the crankcase to the air intake system. From here the emissions mix with the intake air and are later burned in the engine.
Catalytic converters
The catalytic converters are efficient “clean-up” devices built into the exhaust system of the vehicle. The catalytic converters burn the undesirable pollutants in the exhaust gas before it is released into the atmosphere.
The exclusive use of unleaded fuel is critically important for the life of the catalytic converters. Therefore, only unleaded fuel must be used.
The catalytic converters will be damaged by:
– Push or tow starting the vehicle, – Misfiring of the engine,– Turning off the ignition while the vehicle is moving,– Driving until the fuel tank is completely empty,– By other unusual operating conditions.fDo not continue to operate your vehicle under these conditions, since raw fuel might reach the catalytic converters. This could result in overheating of the converters. Federal law prohibits use of leaded fuel in this car.
Fuel Economy
Fuel economy will vary depending on where, when and how you drive, optional equipment installed, and the general condition of your car. A car tuned to specifications and correctly maintained, will help you to achieve optimal fuel economy.fHave your vehicle tuned to specifications. Air cleaner should be dirt free to allow proper engine “breathing”.Battery should be fully charged.Wheels should be properly aligned.Tires should be inflated to the correct pressure.
AfterMarket Undercoating
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Maintenance and Car Care 227
fAlways monitor your fuel consumption.fDrive smoothly, avoid abrupt changes in speed as much as possible.fAvoid jack rabbit starts and sudden stops.fDo not drive longer than necessary in the lower gears. Shifting into a higher gear early without lugging the engine will help save fuel.fProlonged “warm up” idling wastes gas. Start the vehicle just before you are ready to drive. Accelerate slowly and smoothly.fSwitch off the engine if stationary for longer periods.fAny additional weight carried in the vehicle reduces fuel economy. Always keep cargo to a minimum and remove all unnecessary items.fOrganize your trips to take in several errands in one trip.fAll electrical accessories contribute to increased fuel consumption.fOnly switch on the air conditioning when necessary.fDo not drive with the Roof Transport System mounted unless you need it.
The EPA estimated miles per gallon (mpg) is to be used for comparison purposes, actual mileage may be different from the estimated mpg, depending on your driving speed, weather conditions and trip length. Your actual highway mileage may be less than the estimated mpg.fPlease observe all local and national speed limits.
Operating Your Porsche in other
Countries
Government regulations in the United States and Canada require that automobiles meet specific emission regulations and safety standards. Therefore, cars built for the U.S. and Canada differ from vehicles sold in other countries.
If you plan to take your Porsche outside the continental limits of the United States or Canada, there is the possibility that:– Unleaded fuel may not be available,– Unleaded fuel may have a considerably lower octane rating. Excessive engine knock and serious damage to both engine and catalytic converters could result,– Service may be inadequate due to lack of proper service facilities, tools or diagnostic equipment,– Replacement parts may not be available or very difficult to get.
Porsche cannot be responsible for the mechanical damage that could result because of inadequate fuel, service or parts availability.
If you purchased your Porsche abroad and want to bring it back home, be sure to find out about shipping and forwarding requirements, as well as current import and customs regulations.
Fuel
When the ignition is on, the fuel level is displayed on the instrument panel.fPlease see the chapter “FUEL GAUGE” on page 90.
fFire, open flame and smoking are prohibited when handling fuel.
Fuel and fuel vapors are hazardous to health.fAvoid contact with skin or clothing, since injury to your skin may occur.fDo not inhale fuel vapors, since they may make you ill and possibly cause death if inhalation is prolonged and occurs in a closed space.
To prevent damage to the emission control system and engine:fNever drive the tank dry.fAvoid high cornering speeds after the warning lights have come on.
fPlease see the chapter “FUEL ECONOMY” on page 226.
Check engine warning light
If the warning lights in the instrument panel come on and remain on while driving, it suggests: – a potential engine control problem and the need for system service or – an improperly fastened tank cap or
refueling with engine running.
Refueling Fire Risk
Fuel Vapors and Skin Contact
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234 Maintenance and Car Care
Paint care
In order to protect the paint on your vehicle in the best possible way against mechanical and chemical damage, you should – preserve it regularly,– polish it if necessary,– remove spots and stains, and– repair damaged paintwork.fDo not apply care products containing silicone to the windows.
Information
fNever rub a dusty vehicle with a dry cloth, because the grains of dirt will damage the paintwork.fDo not treat matt-painted components with preservatives or polishes as these remove the matt effect.
Preservation
The paint surface becomes dull over time due to weathering.fPreserve paint regularly.fApply paint preservative after washing the vehicle and polish it smooth to preserve the paintwork.
This keeps the paint shiny and elastic. Dirt is prevented from adhering to the paint surface and industrial dust is prevented from penetrating the paint.
Polishing
Only when the original shine can no longer be obtained using preservatives should paint polish be used to clean the paint.We recommend Porsche paint polish.
Removing spots and stains
fRemove tar spatters, traces of oil, insects etc. as soon as possible using an insect remover, as they discolor the paint if left to work on it over time.fWash the treated areas carefully afterwards.
Repairing minor paint damage
fHave minor paint damage (cracks, scratches or stone damage) repaired immediately before corrosion begins. Please contact an authorized Porsche dealer.
If traces of corrosion have already formed, these must be thoroughly removed. An anti-corrosion primer must then be applied to these spots, followed by top-coat paint.
Paint data can be found on the vehicle data carrier.fPlease see the chapter “VEHICLE IDENTIFICATION NUMBER” on page 284.
Cleaning windows
fClean all windows regularly, inside and out, with window cleaner.We recommend Porsche window cleaner.fDo not use the same chamois for painted surfaces and for drying the windows.Preservative residues could reduce transparency.fRemove insect residues with insect remover.
Information
The door windows have a water-repellent (hydrophobic) coating, which prevents soiling of the windows.This coating is subject to natural wear and can be renewed.fPlease contact an authorized Porsche dealer.
Care of windshield wiper blades
Windshield wiper blades that are in perfect condition are vital for a clear view.fPlease see the chapter “WIPER BLADES” on page 224.
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236 Maintenance and Car Care
If cleaning agents (e.g. wheel cleaning agents) come into contact with the brake disks, the resulting film on the brake disks can impair braking performance.fMake sure that no cleaning agent comes into contact with the brake disks.fIf cleaning agent has come into contact with the brake disks, clean the brake disks thoroughly with a strong jet of water.fPaying attention to any road users behind you, dry the brake disks by applying the brakes.
Stainless steel tailpipes
Stainless steel tailpipes can discolor due to soiling, strong heat and combustion residues.
The original shine can be achieved again using commercially available metal luster paste or metal polish.
Cleaning door, roof, lid and window seals
The lubricant coating on the inner door seals may be damaged by unsuitable cleaning and care agents.fDo not use any chemical cleaning agents or solvents.fDo not use any preservative agents.
fWash dirt (e.g. abrasion, dust, road salts) from all seals regularly using warm soapy water.fIf there is a risk of frost, protect the outer door seals and the lid and flap seals against freezing into place with a suitable care product.
Leather care
The natural surface markings of leather, e.g. creases, healed scars, insect sting marks, structural differences and slight variations in shade and grain add to the attractiveness of the high-quality natural leather product.
Observe the following care instructions:
The leather will be damaged by the use of unsuitable cleaning and care agents and by inappropriate treatment.fDo not use caustic cleaners or hard cleaning objects!fMake sure that perforated leather does not get wet on its reverse side.fRemove water drops from the leather without delay.
fClean all types of leather regularly to remove fine dust using a soft, damp, white woolen cloth or a commercially available microfiber cloth.fRemove heavy contamination (not water or moisture stains) with a leather cleaner.Always read the instructions for use given on the containers.We recommend Porsche leather care liquid.fTreat cleaned leather only with a leather care product.We recommend Porsche leather care liquid.
Seats with seat ventilation
Care instructions for water or moisture stains.
Rain water or moisture can stain the perforated leather.
Removing water and moisture stains
Preconditions: – Seat heating and seat ventilation must be switched off.– No direct sunlight.– Do not use leather cleaners or care products to remove water and moisture stains.fBlot the entire seat or backrest surface using a clean, absorbent sponge and distilled water.Make sure that the perforated leather does not get wet on its reverse side.fAllow the seat covering to dry completely at room temperature out of direct sunlight.Do not dry the seat covering by switching on the seat heating and seat ventilation.fOnce dry, wipe the seat covering with a dry, lint-free cloth.
Cleaning carpet, floor mats
fUse a vacuum cleaner or a brush (not too soft) for cleaning.fHeavy dirt and stains can be removed with a stain remover.We recommend Porsche stain remover.
To protect carpets, the Porsche range of accessories includes mats of the correct size and with the appropriate fastening.
Cleaning Agents on Brake Disks
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