184 Driving and Driving Safety
HOLD function: Drive-Off
Assistant, Standstill Management
The HOLD function, as an assistance function, assists the driver when stopping and driving off on upward slopes.The vehicle is automatically prevented from rolling back away from the desired direction of travel.When the HOLD function is active, the indicator light on the instrument panel comes on.
The vehicle is stopped and prevented from rolling back away from the desired direction of travel even without pressing the brake.
Information
The HOLD function is not available if the PDK selector lever is in position P and N.
If the PDK selector lever is moved while the HOLD function is active, the HOLD function is deactivated.
If the driver’s safety belt is unfastened and the driver’s door is opened while the HOLD function is active, the electric parking brake is activated automatically.
For information on the electric parking brake:fPlease see the chapter “ELECTRIC PARKING BRAKE” on page 151.
The limits set by the physics of driving cannot be overcome, even with the HOLD function. Responsibility for driving off on upward slopes is still the driver’s, despite the HOLD function.Assistance by the HOLD function is not always guaranteed when stopping and driving off on a slippery surface (e.g. on icy or loose surfaces). In this case, the vehicle can slip.fAlways adjust your driving style to the driving conditions and vehicle load. Use the footbrake if necessary.
If the Drive-Off Assistant is not functioning, the driver cannot be assisted when driving off on hills.fHold the vehicle with the footbrake.
If the vehicle comes to a standstill on a steep uphill gradient without operation of the footbrake by the driver, this may result in a certain roll-back before the vehicle is held by the HOLD function. In this situation, the roll-back can be reduced by pressing the footbrake.fAssist holding of the vehicle by increasing the braking force with the footbrake.
Information
When the HOLD function is active, the brake pedal may feel different and you may hear hydraulic noises.
This behavior is normal for the system. It is not a fault.
ABS Brake System
(Anti-lock Brake System)
In spite of the advantages of ABS, 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 ABS.Risk of accidents due to inappropriate speed cannot be reduced by ABS.
ABS helps provide:
– Full steering control The vehicle remains steerable– Good driving stability No skidding due to locked wheels– Optimum braking distance Shorter stopping distance in most cases– Prevention of wheel locking No flat spots on the tires
Limits of HOLD Function
Drive-Off Assistant Not Working
Vehicle Roll-back
WARNINGh
CAUTIONh
CAUTIONh
Loss of control over the vehicleWARNINGh
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206 Parking
Parking
ParkAssist .................................................. 207 Reversing Camera ...................................... 209Swivelling Down Mirror Glass as Parking Aid . 210Garage Door Opener HomeLink®
(Universal Remote Control) .......................... 211
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Parking 207
ParkAssist
When the driver is parking and maneuvering the vehicle, ParkAssist indicates the distance between the vehicle and a large obstacle by means of signal tones.fOn vehicles with front and rear sensors:For information on the ParkAssist visual display, please refer also to the section “PARKASSIST” in the operating instructions for the Porsche Communication Systems PCM/CDR.
ParkAssist is activated automatically when reverse gear is selected and the ignition is on.
If the vehicle has front ParkAssist, this also issues an automatic warning when the distance between the vehicle and an obstacle in front is less – than approx. 40 in./100 cm (acoustically) and approx. 32 in./80 cm (visually).
A warning signal sounds when – the distance between the vehicle and an obstacle at the rear is less than approx. 71 in./180 cm.The ParkAssist visual display appears on the central screen of the Porsche communication system.
Front and rear ParkAssist is not activated: – At a speed of more than approx. 9 mph (15 km/h).– When the electric parking brake is activated.– When the ParkAssist has been switched off with button A in the overhead console with the ignition switched on. The indicator light in button A lights up.
Responsibility for parking and for assessing the risk to persons, children, pets, and small objects around the vehicle lies completely with the driver. fMake sure that no persons (especially small children), animals or obstacles are within the maneuvering area. fIf the continuous tone sounds, stop and do not move your vehicle further in that direction.
Ultrasound sensors
Sensors
The ultrasound sensors A in the rear bumper and the sensors A in the front bumper (depending on vehicle equipment) measure the distance to the closest obstacle:– Range behind the vehicle: approx. 71 in. (180 cm)– Range at the side of the vehicle: approx. 24 in. (60 cm)– Range in front of the vehicle: approx. 47 in. (120 cm)
Obstacles cannot be detected in the “blind” sensor area (above and below the sensors, e.g. objects hanging down or close to the ground).
ParkAssist LimitsWARNINGh
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208 Parking
Ultrasound sensors
Maintenance notes
fThe sensors must always be kept free of dust, ice and snow in order to ensure that they are fully functional.fDo not damage sensors by abrasion or scratching.fMaintain sufficient distance when cleaning with high-pressure cleaning equipment.The sensors will be damaged if the pressure is too high.
Signal tones/function
When reverse gear is selected, ParkAssist confirms that it is switched on by issuing a short signal tone .
If the vehicle has front ParkAssist, no signal tone will be issued when reverse gear is selected.Instead, the ParkAssist visual display will appear on the central screen of the Porsche communication system.
A detected obstacle is signaled by an intermittent tone . The intervals decrease as the obstacle is approached.
If the distance drops to less than approx. 12 in. (30 cm), a continuous tone sounds.fSet the radio volume so that the signal tones are not drowned out.
The volume of the signal tones can be changed individually.
For information on changing the signal tone volume:fPlease see the chapter “ADJUSTING PARKASSIST VOLUME” on page 126.
Even when using ParkAssist, the driver is still responsible for taking due care when parking and when assessing obstacles.A continuous tone sounds when there is a risk of collision.fDo not drive rearward any further once a continuous tone sounds.
Limits of ultrasonic measurement
– ParkAssist cannot detect sound-absorbing obstacles (e.g. winter driving, powder snow, clothing made from fabric or fur),– sound-reflecting obstacles (such as glass surfaces and flat painted surfaces),– and very thin obstacles (e.g. thin posts).
Other ultrasound sources (e.g. pneumatic brakes of other vehicles, sweeping machines and jack hammers) can interfere with the detection of obstacles.
Care Required ParkingWARNINGh
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Parking 209
Deactivating ParkAssist
On vehicles with front and rear ParkAssist, the ParkAssist function can be deactivated manually.fPress button A on the overhead operating console.The indicator light in the button lights up.ParkAssist is switched off.
Display due to environmental factors
Correct operation is no longer guaranteed if there is a temporary fault (e.g. caused by ice formation or heavy soiling on the sensors).
Depending on the environmental factor, it is possible that a stop warning with acoustic warning or a warning triangle without acoustic warning is displayed on the central screen of the Porsche communication system.
ParkAssist is ready for operation again when the interference has been eliminated.
In the event of a permanent fault in ParkAssist, a continuous tone sounds for three seconds after reverse gear has been selected.
On vehicles with front and rear sensors only: In the case of a sensor problem, a warning triangle appears in the monitoring area for the relevant bumper and a continuous tone sounds for three seconds.
Possible cause: – Defect or system fault.fHave the fault corrected. Please contact an authorized Porsche dealer.
Reversing Camera
The reversing camera is located between the number plate lights in the bumper ( illustration).fPlease refer to the chapter “REVERSING CAMERA” in the separate PCM/CDR operating instructions.fAlways keep the reversing camera clean and free of ice and snow so that vision is not impaired.
For car care instructions:fPlease see the chapter “CAR CARE INSTRUCTIONS” on page 231.
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232 Maintenance and Car Care
High-pressure cleaning equipment, steam cleaners
Risk of damage as a result of using high-pressure cleaning equipment, steam cleaners or similar.
High-pressure cleaning equipment, steam cleaners or similar can damage the following components:– Convertible top– Tires– Logos, emblems– Painted surfaces– Alternator– Electrical components and plug connections in the engine compartment– ParkAssist sensors– Radar sensor for adaptive cruise control– Reversing camerafAlways read the operating instructions provided by the equipment manufacturer.fAlways cover the lid of the brake fluid reservoir prior to cleaning. Never point the cleaning jet directly at the lid.fWhen cleaning with a flat-jet nozzle or a so-called “dirt blaster”, maintain a minimum distance of 20 in. (50 cm).fNever use high-pressure cleaning equipment or steam cleaners with a round-jet nozzle.A high-pressure cleaning device or steam cleaner fitted with a round nozzle will damage your vehicle. The tires are particularly susceptible to damage.fDo not point the cleaning jet directly at any of the aforementioned components.
Decorative film
Risk of damage due to separation of the decorative film when using high-pressure cleaning equipment, steam cleaners or similar cleaning equipment.fDo not use high-pressure cleaning equipment, steam cleaners, etc. to clean decorative films.
Care of door lock
fTo prevent the door lock from freezing during the cold season, cover the lock barrel with suitable adhesive tape while washing the vehicle.
If the lock still freezes, use an ordinary de-icer. In many cases, a well warmed key can help.fNever use excessive force.
Car washing
The best protection for the vehicle from the damaging effects of the environment is frequent washing and preservation.
The longer road salt, road dust, industrial dust, insect remains, bird excrement, and tree exudations (e.g. resin, pollen), etc. are allowed to remain on the bodywork, the more harmful their effect.
Observe the following points in order to ensure that the vehicle is washed thoroughly without damaging the paintwork: fThe underside of the vehicle should also be thoroughly washed at the end of the gritting season at the latest.fWash your vehicle only at sites provided for this purpose to prevent soot, grease, oil and heavy metals from entering the environment.
fNew cars should be washed carefully with plenty of clear water to protect the new paint work. Dark paint finishes show up the smallest of surface damage (e.g., scratches) more readily than lighter colors. Dark colors are slightly more susceptible to scratching and require particularly careful paint care.Dark paints make even the smallest surface blemishes (scratches) more conspicuous than lighter colors.fDo not wash your Porsche in direct sunlight or when its body is hot.fWhen washing by hand, use a car shampoo, plenty of water, and a soft sponge or washing brush.We recommend Porsche car shampoo.fStart washing the vehicle by thoroughly wetting the paintwork and rinsing the heavy dirt off.fAfter washing the vehicle, rinse it thoroughly with water and rub it dry with chamois-leather.Do not use the same chamois for rubbing dry as you use for cleaning the windshield and windows.
Reduced or uneven braking action may be caused by wet brakes.fAfter washing the vehicle, test the brakes and steering and briefly brake the disks dry.When doing so, make sure that vehicles traveling behind you are not affected.
NOTICENOTICE
Wet BrakesWARNINGh
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244 Minor Repairs
Information
If the warning light and warning message appear when driving: fStop immediately in a suitable place.fDo not continue driving.Please contact an authorized Porsche dealer.
For information on warning messages on the multi- function display: fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Electromechanical Power Steering
When the engine is stopped (e.g. when on tow), no power steering assistance is available.Increased force is required for steering.fExercise extreme care when your vehicle is being towed.fHave the fault corrected. Please contact an authorized Porsche dealer.
Changing Air Cleaner
Regular replacement of the filter element is part of servicing.fIn dusty conditions, clean the filter element more frequently and replace it if necessary.fPlease see the chapter “MEASUREMENTS ON TEST STANDS” on page 241.
Changing Particle Filters
Regular replacement of the filters is part of servicing.
Dirty filters can be the cause of reduced air throughput, e.g. the windows can mist up.fHave the filters replaced.Please contact an authorized Porsche dealer.
Information
The particle filters ensure that the fresh air entering the passenger compartment is virtually free of dust and pollen.fIf the outside air is polluted by exhaust fumes, press the recirculated-air button.
Tires and Wheels
The original equipment tires and wheel rims on your Porsche comply with all applicable Federal Motor Vehicle Safety Standards.
Information
The summer tires of your Sports Car have been specially developed and adapted for high performance.The tire characteristics change at low outside temperatures (below 15 °C).This can result in noises when parking or maneuvering at low outside temperatures.
For your safety remember the following:
– Wheel rims and wheel bolts are matched to fit your Porsche.– If you intend to use other than original equipment wheels, be sure that they conform to Porsche specifications for your model. Only tires with the same make and with the same specification code (e.g. “N0”, “N1”...) can be mounted.– The use of wheel rims and wheel bolts that do not meet specifications of the original factory installed equipment will affect the safe operation of your vehicle and affect warranty coverage.– Before you plan on exchanging wheels, or snow tires already mounted on the wheel rims, consult your authorized Porsche dealer. Your dealer has the technical information necessary to advise you which wheel rims and wheel bolts are compatible with the original factory installations.
No Power Steering AssistWARNINGh
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278 Minor Repairs
A-Height adjustment
Height adjustment
1. Switch ignition on. 2. Switch on low beam. 3. Open luggage compartment lid. 4. Remove the relevant toolbox. 5. Open up the cover A for the adjusting screw. 6. Place Allen wrench (5 mm) on adjusting screw. 7. Adjust low beam in the corresponding direction.
Towing
Certain state statutes and local ordinances prohibit towing with a chain, rope or even a tow bar. In addition, damage to your vehicle may result from improper procedures. Consult your authorized Porsche dealer for details.
Flatbed towing is the preferred type of towing to be used on Porsche vehicles.
Information
fAlways observe the laws governing towing and tow-starting.fExercise extreme care when your vehicle is being towed.
No power assistance is available on the towed vehicle when its engine is not running. Greater force is therefore required when braking and steering.fExercise extreme care when your vehicle is being towed.
When the engine is not running, adequate lubrication of the transmission is not guaranteed. Observe the following points to avoid damage to the transmission.
Towing a vehicle on all four wheels
We urge that wherever possible, a car transporter or trailer be used to transport a 911 Turbo vehicle that cannot move under its own power. This is the safest way to transport a down vehicle.
For those instances where a car transporter or trailer is not available, the vehicle may be towed on all four wheels only, provided the following
conditions are strictly met. Failure to meet these conditions will result in serious and expensive damage to the PDK transmission.
If the vehicle's transmission or shifter is already damaged, serious damage will result if the vehicle is not towed with all four wheels off the ground.
Porsche cannot be held responsible for damage incurred in cases where a vehicle has been transported on one or both of its axles.
Towing a vehicle on all four wheels:
fThe vehicle must not be towed if the PDK transmission is in emergency operation mode (“ Transm. failure Park vehicle safely”). The vehicle must be transported with a car transporter or on a trailer.fIf a selector lever emergency release was performed, the vehicle must not be towed. The vehicle must be transported with a car transporter or on a trailer.fMove PDK selector lever to position N. To properly engage selector-lever position N on the display and at the selector lever, the engine must be started once before towing the vehicle. The vehicle can be towed as soon as the selector lever is in position N and selector- lever position N appears on the display.fThe vehicle must always roll on all four wheels when towed.The ignition must be switched on so that the brake lights and turn signal lights operate.fDo not exceed a maximum speed of 30 mph (50 km/h).Maximum towing distance 30 miles (50 km).If towing distances are greater, the vehicle must be transported with a car transporter or on a trailer.
Towed Vehicle HazardsWARNINGh
NOTICE
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