2014 PORSCHE 911 TURBO engine overheat

Instrument Panel and Multi-Function Display 95
Battery/Alternator
The warning message “Generator fault Park vehicle safely ” will appear on the multi-function display in the instrument panel if the vehicle electrical system voltage drops significantly.fStop at a safe place and switch the engine off.
For information on warning messages on the multi-function display:fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Possible causes
– Defect in the battery charging system– Broken drive belt
Risk of engine damage.
The engine cooling does not function if the drive belt is torn.fDo not continue driving.fHave the fault corrected.fPlease contact an authorized Porsche dealer.
Check Engine
(Emission Control)
Warning light
The emission control system detects malfunctions that could cause increased pollutant emissions or consequential damage etc. well in advance.Faults are indicated by the warning light on the instrument panel which then either lights up continuously or flashes.The faults are recorded in the control unit’s fault memory.
The warning light on the instrument panel lights up when the ignition is switched on as a lamp check and goes out approx. 1 second after the engine starts.
The warning light on the instrument panel flashes to indicate operating states (e.g. engine misfiring) which may cause damage to certain parts of the emission control system.fIn this case, immediately reduce the engine load by easing off the accelerator pedal.
In order to avoid consequential damage to the engine or the exhaust-gas cleaning system (e.g. catalytic converter):fPlease contact an authorized Porsche dealer.
Risk of damage to the emission control system.
If the warning light on the instrument panel continues flashing even when you have eased off the accelerator pedal, the emission control system may overheat.fStop as soon as possible in a safe place.Make sure that combustible materials, such as dry grass or leaves, cannot come into contact with the hot exhaust system.fSwitch off the engine.fHave the fault corrected at an authorized Porsche dealer.
Acoustic Signals
A speaker in the instrument panel generates acoustic signals.The warning message “ Instrument cluster/ Park Assist audio fault Service required ” will appear on the multi-function display in the instrument panel if a speaker fault occurs.The speaker cannot generate acoustic signals.fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Warning message
NOTICE
NOTICE
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132 Instrument Panel and Multi-Function Display
Drive temperature too highReduce load
“Warning jerks” can be felt when driving off and the engine power may be restricted. Do not use the accelerator to hold the vehicle, e.g. on a hill. Hold the vehicle with the brake.Reduce engine load. Stop the vehicle in a suitable place if possible.Allow the engine to run in selector-lever position P or N until the warning disappears.
Transmission overheated Park vehicle to cooling
Transmission temperature too high. Stop the vehicle at a suitable place, switch off engine and allow it to cool down.Have the fault corrected at an authorized Porsche dealer.
Press clutch Manual transmission: Depress clutch pedal when starting.
Brake fluid level Park vehiclesafely
Stop immediately in a suitable place. Do not continue driving. Have the fault corrected at an authorized Porsche dealer.
Brake distribution fault Park vehicle safely Stop immediately in a suitable place. Do not continue driving. Have the fault corrected at an authorized Porsche dealer.
Brake cooling faulty Brake temperature too high. Stop the vehicle at a suitable place, switch off engine and allow the brake to cool down.Have the fault corrected at an authorized Porsche dealer.
ABS/PSM failure Adapted driving permitted Have the fault corrected at an authorized Porsche dealer.
Wear limit Change brake padsDriving permitted
Have brake pads replaced immediately. Consult an authorized Porsche dealer.
flashes
Release parking brake Pull the electric parking brake switch.
Press brake pedal Press the brake pedal before releasing the electric parking brake.
Light in instrument panel
Warning and information message on the multi-function display Meaning/Action required
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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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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
WARNINGh
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Maintenance and Car Care 235
Repairing the underbody protection
The underside of your car is durably protected against chemical and mechanical influences.
As it is not possible to exclude the risk of damage to this protective coating in day to day driving, it is advisable to have the underside of the car inspected at certain intervals - preferably before the start of winter and again in spring - and the undercoating restored as necessary.
Your authorized Porsche dealer is familiar with the bodyseal treatment procedures and has the necessary equipment for applying factory approved materials. We recommend that you entrust them with such work and inspections.
Unlike conventional spray oils, undercoating and rust-proofing compounds based on bitumen or wax do not attack the sound-proofing materials applied at the factory.
The exhaust system becomes very hot when the engine is running. Flammable material close to the exhaust system could ignite. Additional undercoating or rust protection agents on or near the exhaust system can become too hot when driving and ignite.fDo not apply additional undercoating or rust-proofing on or near the exhaust manifold, exhaust pipes, catalytic converters or heat shields. During driving the substance used for undercoating could overheat and ignite.
fBefore applying fresh underseal, carefully remove deposits or dirt and grease. Once it has dried, the new undercoating compound forms a tough protective coating which provides efficient rust-proofing of the floor panels and components.
fAlways apply a fresh coating of suitable preservative to unprotect areas after cleaning the underside of the body, the transmission, the engine or carrying out repairs to under-body, engine or transmission components.
Effective rust-proofing is particularly important during the cold weather season. If your car is driven frequently in areas where salt has been spread on the roads, the whole engine compartment should be cleaned thoroughly after the winter to prevent salt from causing any lasting damage. A full under-body wash should also be performed at the same time.
Cleaning headlights, lights, interior and exterior plastic components, adhesive foils, reversing camera and radar sensor for adaptive cruise control
Observe the following points: fUse only clean water and a little dishwashing liquid or interior window cleaner to clean headlights, lights, plastic components and surfaces.Use a soft sponge or a soft, lint-free cloth.fDo not spray water or interior window cleaner directly onto the plastic components in the passenger compartment, but first onto a sponge or cloth. Cleaning agents may, for example, enter controls or switches and cause damage.
Information
An interior window cleaner can also be used to clean plastic surfaces (always read the cleaning instructions on the container).We recommend Porsche interior window cleaner.fGently wipe the surface without applying too much pressure.fDo not clean when dry.
fNever use other chemical cleaners or solvents.fRinse cleaned surfaces with clear water.
Alloy wheels
Metal particles (e.g. brass or copper in brake dust) must not remain too long on alloy wheels.Contact corrosion can cause pitting.
Information
Cleaners with an oxide-removing effect or wrong pH value, as are commonly used for other metals, as well as mechanical tools and products, will damage the oxide layer and are therefore unsuitable.fUse only cleaners for alloy wheels (pH value 9.5). Products with the wrong pH value can destroy the protective layer on the wheels . We recommend Porsche cleaner for alloy rims.fIf possible, wash the wheels every two weeks with a sponge or washing brush. If the wheels are exposed to road salt, grit or industrial dust, weekly cleaning is necessary.fEvery three months, after cleaning, grease the wheels with car wax or an acid-free grease (e.g. Vaseline).Rub the grease in well with a soft cloth.fPlease see the chapter “CLEANING IN CAR WASHES” on page 233.
Exhaust System Fire Risk
WARNINGh
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