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Porsche Panamera (2010 year). Manual - part 16

To avoid permanent damage to the functionality of

Note on operation

Fuel

the catalytic converters and oxygen sensors, use

Information on the fuel quality can normally

When the ignition is on, the fuel level is displayed

unleaded fuel only.

be found on the pump.

on the instrument panel.

The engine is designed to provide optimum

If this is not the case, ask a fuel station attendant.

f Please see the chapter “FUEL GAUGE” on

performance and fuel consumption if unleaded

If the recommended fuel is not available, you

page 111.

premium fuel with 98 RON/88 MON is used.

can also use unleaded regular fuel (91 RON/

If unleaded fuels with octane ratings of less than

82.5 MON) in an emergency.

Warning!

98 RON/88 MON are used, the engine’s knock

However, this could reduce performance and

Fuel is highly flammable and harmful to

control automatically adapts the ignition timing.

increase fuel consumption.

health.

Porsche recommends that you use fuel with

at least 95 RON/85 MON in your vehicle.

f Avoiding driving at full throttle.

f Fire, open flame and smoking are prohibited

when handling fuel.

The emission control system can be damaged in

In some countries the available fuel quality may

various ways (e.g. fueling incorrectly, shortage of

not meet requirements and can result in coking

f Avoid contact with skin or clothing, since injury

fuel, tow-starting).

around the inlet valve.

to your skin may occur.

f Please see the chapter “HOW EMISSION

In this case, the fuel may be mixed with the

f Do not inhale fuel vapors, since they may make

CONTROL WORKS” on page 263.

additive sold and recommended by Porsche after

you ill and possibly cause death if inhalation is

consulting a authorized Porsche dealer.

prolonged and occurs in a closed space.

Porsche part number 000 043 206 89.

To prevent damage to the emission control

system and engine:

f Observe the instructions and mixture ratios

stated on the container.

f Never drive the tank dry.

It is important that the service intervals,

f Avoid high cornering speeds after the warning

particularly the oil change intervals, are

lights have come on.

observed in accordance with the specifications

in the “Maintenance” booklet.

f Please see the chapter “FUEL ECONOMY” on

page 264.

Maintenance and Car Care

265

Refuelling

Danger!

The RF energy from a cellphone can cause a

sparking on bare metal, much like aluminum

foil in a microwave oven. The spark could

ignite gasoline fumes present while refuling.

Static discharge from your body can ignite

gasoline fumes present when you get back

out of the vehicle and touch the fuel nozzle.

In either case, resulting fire can cause

serious damage to the vehicle, serious injury

or death to persons in immediate vicinity.

f Do not use a cellphone while pumping gas.

f Do not re-enter the vehicle while pumping gas.

1. Stop the engine and switch off the ignition.

3. Slowly open and remove the tank cap.

Put the tank cap into the holder (arrow).

2. Open the filler flap by pressing on the rear part

of the filler flap (arrow).

4. Add the fuel additive recommended by

The vehicle must be unlocked.

Porsche if necessary.

5. Insert the pump nozzle fully into the filler neck.

The handle of the pump nozzle must point

downwards.

Total capacity:

Panamera S: approx. 21.14 US gallons

(80 liters).

Panamera 4S/Panamera Turbo:

approx. 26.42 US gallons (100 liters).

The reserve is approx. 3.96 US gallons

(15 liters) for each.

266 Maintenance and Car Care

6. Operate the pump nozzle and refuel

Fuel Can

the vehicle.

Do not add further fuel once the correctly

Danger!

operated automatic pump nozzle has switched

off. Fuel could spray back or could flow over

Risk of fire or explosion if the fuel can is

when heated.

damaged in an accident and fuel escapes.

Escaping vapors can be harmful to health.

7. Replace the tank cap immediately after

refuelling and close it until you hear and feel

f

Do not carry a fuel can on journeys.

it locking.

f

Observe the relevant laws.

8. Close the filler flap and press on the rear of

the filler flap until it engages securely.

If you lose the tank filler cap, you must

replace it only with an original part.

Caution!

Risk of damage. Decorative foils may fade

if they come into contact with fuel.

Emergency unlocking of the filler flap

f Wipe off any spilled fuel immediately.

If the electrical unlocking mechanism is faulty,

the filler flap can be opened as follows:

- Pull the emergency release mechanism behind

the right luggage compartment trim panel in

direction of arrow.

The filler flap pops open.

Maintenance and Car Care

267

Warning!

Fuel Evaporation Control

Car Care Instructions

Risk of serious personal injury or damage to

f Please see the chapter “EXERCISE EXTREME

Fuel tank venting

the vehicle or property.

CAUTION WHEN WORKING ON YOUR VEHICLE”

Cleaning agents may be hazardous to your

on page 252.

The evaporation chamber and the carbon canister

health.

prevent fuel vapors from escaping to the

Regular and correct care helps to maintain

Most chemical cleaners are concentrates

atmosphere at extreme high outside

the value of your car and is also a

which require dilution. High concentrations

temperatures, when driving abruptly around

precondition for the New Vehicle Warranty

might cause problems ranging from irritation

curves and when the car is parked at an incline or

and the Anti Corrosion Warranty.

to serious injury as well as damage to your

in any other nonlevel position.

vehicle.

Your authorized Porsche dealer has specially

developed car-care products from the

f

Keep cleaning agents out of reach from

Vapor control system and storage

Porsche program available either singly or

children.

as complete car-care sets. They will be

When the fuel tank is filled, vapors are collected in

f

Observe all caution labels.

pleased to help you select suitable products.

the evaporation chamber by a vent line leading the

f

Always read directions on the container before

vapors to the carbon canister where they are

Whether you use Porsche products or other

using any product. These directions may

stored as long as the engine does not run.

commercially available cleaning agents first

contain information necessary to avoid

make sure of their correct application.

personal injury.

Purge system

A Porsche that is well-cared for can look like new

f

Do not use fuel, kerosene, naphtha, nail polish

for years. It all depends on the amount of care the

When the engine is running, the fuel vapors from

remover or other volatile cleaning fluids. They

owner is willing to give the car.

the canister will be mixed with fresh air from the

may be toxic, flammable or hazardous in other

ways. Only use spot removing fluids in a well

ambient air of the canister. This mixture will be

vented area.

directed to the intake air housing by the tank vent

line, mixed with the intake air and burned during

f

Do not clean the underside of chassis,

normal combustion.

fenders, wheel covers, etc., without protecting

your hands and arms as you may cut yourself

on sharp-edged metal parts.

Maintenance and Car Care

269

High-pressure cleaning equipment

Decorative film

Car washing

Warning!

Caution!

The best protection for the vehicle from the

damaging effects of the environment is frequent

High-pressure cleaning equipment can

Risk of damage due to separation of the

washing and preservation.

damage the following components:

decorative film when using high-pressure

cleaning equipment.

The longer road salt, road dust, industrial dust,

-

Tires

insect remains, bird excrement, and tree sap,

f When cleaning components, the water must

–

Logos, emblems, decorative foils

resin, pollen, etc. are allowed to remain on the

not be hotter than 140 °F (60 °C) and the

bodywork, the more harmful their effect.

-

Painted surfaces

pressure no greater than 580 psi (40 bar).

Always observe a minimum distance of 20 in.

Observe the following points in order to ensure

-

Alternator, valve covers

(50 cm).

that the vehicle is washed thoroughly without

–

ParkAssist sensors

damaging the paintwork:

–

Radar sensor for adaptive cruise control

f

The underside of the vehicle should also be

Care of door lock

thoroughly washed at the end of the winter

-

Rearview camera

season at the latest.

f To prevent the door lock from freezing

f

Always read the operating instructions

during the cold season, cover the lock barrel

f

Wash your vehicle only at sites provided for

provided by the equipment manufacturer.

with suitable adhesive tape while washing

this purpose to prevent soot, grease, oil and

the vehicle.

heavy metals from entering the environment.

f

Always cover the lid of the brake fluid reservoir

prior to cleaning. Never point the cleaning jet

If the lock still freezes, use an ordinary de-icer.

f

Dark colors are slightly more susceptible

directly at the lid.

In many cases, a well warmed key can help.

to scratching and require particularly careful

f

When cleaning with a flat-jet nozzle or

Never use excessive force.

paint care.

a so-called “dirt blaster”. maintain a minimum

Dark paints make even the smallest surface

distance of 20 in. (50 cm).

blemishes (scratches) more conspicuous than

lighter colors.

f

Never use high-pressure cleaning equipment

with a round-jet nozzle.

f

Do not wash your Porsche in direct sunlight

A high-pressure cleaning device fitted with

or when its body is hot.

a round nozzle will damage your vehicle. The

f

When washing by hand, use a car shampoo,

tires are particularly susceptible to damage.

plenty of water, and a soft sponge or washing

f

Do not point the cleaning jet directly at any of

brush.

the aforementioned components.

We recommend Porsche car shampoo.

270 Maintenance and Car Care

f Start washing the vehicle by thoroughly

Cleaning in car washes

Paint care

wetting the paintwork and rinsing the heavy

Optional add-on parts or parts that project beyond

dirt off.

In order to protect the paint on your vehicle in

the contours of the vehicle may be damaged by

the best possible way against mechanical and

f After washing the vehicle, rinse it thoroughly

design features of car washes.

chemical damage, you should

with water and rub it dry with chamois-leather.

The following parts are particularly at risk:

Do not use the same chamois for rubbing

- preserve it regularly,

dry as you use for cleaning the windshield

-

Windshield wipers and rear wiper

- polish it if necessary,

and windows.

(always switch them off - wiper stalk in

position 0 - to prevent them wiping

- remove spots and stains, and

Warning!

unintentionally in intermittent or sensor

- repair damaged paintwork.

operation).

Risk of accidents! Reduced or uneven

-

Exterior mirrors (always fold in).

General Notes

braking action may be caused by wet

brakes.

f Never rub a dusty vehicle with a dry cloth,

–

External antenna (always unscrew).

because the grains of dirt will damage

f

After washing the vehicle, test the brakes

–

Roof transport system

the paintwork.

and steering and briefly brake the discs dry.

(always remove completely).

When doing so, make sure that vehicles

f Do not treat matt-painted components with

-

Spoiler.

travelling behind you are not affected.

preservatives or polishes as these remove

–

Wheels (the wider the rim and the lower the tire

the matt effect.

height, the greater the risk of damage).

Preservation

f

Please consult the operator before using

The paint surface becomes dull over time due

automatic car washes.

to weathering.

f

All parts not reached by a car wash, such

f Preserve paint regularly.

as door and lid seams or door sills, must

be washed and polished by hand.

f Apply 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.

Maintenance and Car Care

271

Polishing

Paint data can be found on the vehicle data

Cleaning windows

carrier.

Only when the original shine can no longer be

f Clean all windows regularly, inside and out,

obtained using preservatives should paint polish

f Please see the chapter “VEHICLE DATA BANK”

with window cleaner.

be used to clean the paint.

on page 323.

We recommend Porsche window cleaner.

We recommend Porsche paint polish.

f Do not use the same chamois for painted

Cleaning the engine compartment

Removing spots and stains

surfaces and for drying the windows.

f Remove tar spatters, traces of oil, insects etc.

Caution!

Preservative residues could reduce

as soon as possible using an insect remover,

transparency.

Risk of damage, e.g. to the alternator,

as they discolor the paint if left to work on it

f Remove insect residues with insect remover.

painted surfaces, and the valve covers.

over time.

f Never use high-pressure cleaners with

Note

f Wash the treated areas carefully afterwards.

a round-jet nozzle.

The front side windows have a water-repellent

Repairing minor paint damage

f Always observe a minimum distance of 20 in.

(hydrophobic) coating, which prevents soiling

f Have minor paint damage (cracks, scratches

(50 cm).

of the windows.

or stone damage) repaired immediately

This coating is subject to natural wear and can

f Always cover the lid of the brake fluid reservoir

before corrosion begins.

be renewed.

prior to cleaning with a high-pressure cleaner.

Please contact a qualified specialist workshop.

Never point the cleaning jet directly at the lid.

f Please contact a qualified specialist workshop.

We recommend that you have an authorized

We recommend that you have an authorized

Porsche dealer to do this work as they have

f Do not point the cleaning jet directly at any

Porsche dealer to do this work as they have

of the aforementioned components.

trained workshop personnel and the necessary

trained workshop personnel and the necessary

parts and tools.

parts and tools.

Note on operation

If traces of corrosion have already formed, these

must be thoroughly removed. An anti-corrosion

If the vehicle is driven frequently on salted

primer must then be applied to these spots,

or gritted roads:

followed by top-coat paint.

f Have the engine compartment cleaned

regularly.

272 Maintenance and Car Care

Care of windshield wiper blades

Contact your authorized Porsche dealer for more

Warning!

information.

Danger of fire resulting in serious personal

Windshield wiper blades that are in perfect

- The wiper blades may be damaged or worn.

injury or death.

condition are vital for a clear view.

f Have damaged wiper blades replaced

f

Do not apply additional undercoating or rust-

f Please see the chapter “WIPER BLADES” on

immediately.

proofing on or near the exhaust manifold,

page 261.

exhaust pipes, catalytic converters or heat

f Have the wiper blades replaced twice per year

shields. During driving the substance used for

Undercoating

(before and after the cold season) or if wiper

undercoating could overheat and ignite.

performance deteriorates or the blades are

The underside of your car is durably protected

damaged.

against chemical and mechanical influences.

f

Before applying fresh underseal, carefully

remove deposits or dirt and grease. Once it

f Clean the wiper blades with window cleaner at

As it is not possible to exclude the risk of damage

has dried, the new undercoating compound

regular intervals, especially after washing the

to this protective coating in day to day driving, it

forms a tough protective coating which

vehicle in a car wash.

is advisable to have the underside of the car

provides efficient rust-proofing of the floor

We recommend Porsche window cleaner.

inspected at certain intervals - preferably before

panels and components.

If wiper blades are very dirty (e.g. covered with

the start of winter and again in spring - and the

insect remains), they can be cleaned with

undercoating restored as necessary.

f

Always apply a fresh coating of suitable preser-

a sponge or cloth.

vative to unprotect areas after cleaning the

Your authorized Porsche dealer is familiar with the

underside of the body, the transmission, the

If the wiper blades rub or squeak, this may be due

bodyseal treatment procedures and has the

engine or carrying out repairs to under-body,

to the following:

necessary equipment for applying factory

engine or transmission components.

approved materials. We recommend that you

- If the vehicle is washed in an automatic

entrust them with such work and inspections.

Effective rust-proofing is particularly important

car wash, wax residues may adhere to

during the cold weather season. If your car is

the windshield. These wax residues can

Unlike conventional spray oils, undercoating and

driven frequently in areas where salt has been

be removed only by using window

rust-proofing compounds based on bitumen or

spread on the roads, the whole engine compart-

cleaner concentrate.

wax do not attack the sound-proofing materials

ment should be cleaned thoroughly after the

applied at the factory.

f Please see the chapter “WASHER FLUID” on

winter to prevent salt from causing any lasting

page 259.

damage. A full under-body wash should also be

performed at the same time.

273

Maintenance and Car Care

Cleaning headlights, lights, interior and

Alloy wheels

Danger!

exterior plastic components, adhesive

Danger of accident resulting in serious

foils, radar sensor for adaptive cruise

Metal particles (e.g. brass or copper in brake

personal injury or death if cleaning agents

control and rearview camera

dust) must not remain too long on alloy wheels.

(e.g. wheel cleaning agents) come into

Contact corrosion can cause pitting.

contact with the brake discs. The resulting

Observe the following points:

film on the brake discs can impair braking

Note

f Use only clean water and a little dishwashing

performance.

liquid or interior window cleaner to clean

Cleaners with an oxide-removing effect or

f Make sure that no cleaning agent comes into

headlights, lights, plastic components

wrong pH value, as are commonly used for

other metals, as well as mechanical tools and

contact with the brake discs.

and surfaces.

Use a soft sponge or a soft, lint-free cloth.

products, will damage the oxide layer and are

f If cleaning agent has come into contact with

therefore unsuitable.

the brake discs, clean the brake discs

Note

thoroughly with a strong jet of water.

f

Use only cleaners for alloy wheels

An interior window cleaner can also be used to

(pH value 9.5). Products with the wrong

f Paying attention to any road users behind you,

clean plastic surfaces (always read the cleaning

pH value can destroy the protective layer

dry the brake discs by applying the brakes.

instructions on the container!).

on the wheels.

We recommend Porsche interior window cleaner.

We recommend Porsche cleaner for light

alloy rims.

Stainless steel tailpipes

f Gently wipe the surface without applying

too much pressure.

f

If possible, wash the wheels every two weeks

Stainless steel tailpipes can discolor due to

with a sponge or washing brush. If the wheels

f Do not clean when dry.

soiling, strong heat and combustion residues.

are exposed to road salt, grit or industrial dust,

f Never use other chemical cleaners

weekly cleaning is necessary.

The original shine can be achieved again using

or solvents.

commercially available metal lustre paste or metal

f

Every three months, after cleaning, treat the

polish.

f Rinse cleaned surfaces with clear water.

wheels with car wax or an acid-free grease

(e.g. Vaseline).

Rub the grease in well with a soft cloth.

f

Please see the chapter “CLEANING IN CAR

WASHES” on page 271.

274 Maintenance and Car Care

Cleaning door, roof, lid and window seals

Leather care

Cleaning carpet, floor mats

Caution!

The natural surface markings of leather,

f Use a vacuum cleaner or a brush (not too soft)

e.g. creases, healed scars, insect sting marks,

for cleaning.

The lubricant coating on the inner door seals

structural differences and slight variations in

may be damaged by unsuitable cleaning and

f Heavy dirt and stains can be removed with

shade and grain add to the attractiveness of

care agents.

a stain remover.

the high-quality natural leather product.

We recommend Porsche stain remover.

f

Do not use any chemical cleaning agents

Observe the following care instructions:

or solvents.

To protect carpets, the Porsche range of

accessories includes mats of the correct size

f

Do not use any preservative agents.

Caution!

and with the appropriate fastening.

The leather will be damaged by the use of

f

Wash dirt (e.g. abrasion, dust, road salts) from

unsuitable cleaning and care agents and by

Warning!

all seals regularly using warm soapy water.

inappropriate treatment.

Risk of an accident resulting in serious

f

If there is a risk of frost, protect the outer door

f

Do not use caustic cleaners or hard cleaning

personal injury or death.

seals and lid seals against freezing into place

objects!

with a suitable care product.

f

Always check the movement of the pedals

f

Perforated leather must under no

before driving and make sure that they are not

circumstances get wet on its reverse side.

obstructed by a floor mat or any other object.

f

Secure the floor mat to prevent it from sliding

f

Clean all types of leather regularly to

into positions that could interfere with the safe

remove fine dust using a soft, damp,

operation of your vehicle - do not lay them

white woollen cloth or a commercially

loosely in the vehicle.

available microfibre cloth.

Your Porsche dealer will be glad to offer you

f

Remove heavy contamination with

floor mats of correct size including a securing

a leather cleaner.

possibility.

Always read the instructions for use given

on the containers.

We recommend the Porsche leather

care product.

f

Treat cleaned leather only with a leather

care product.

We recommend the Porsche leather

care product.

Maintenance and Car Care

275

Cleaning air bag covers

Alcantara care

Storing your Porsche

Danger!

Do not use leather care products to

If you wish to keep your Porsche off the road for

clean Alcantara.

a lengthy period, we recommend that you contact

Risk of serious or fatal injury from impaired

your authorized Porsche dealer.

operation of the air bag system caused by

For regular care, it is sufficient to clean the

They will be glad to advise you about the

incorrect cleaning.

cover with a soft brush.

necessary measures, e.g. corrosion prevention,

f While it is appropriate to use normal surface

Strong abrasion or rubbing when cleaning will

care, maintenance and storage.

cleaning methods on the interior of your

produce a lasting change to the surface.

Further important information on laying up your

vehicle, do not undertake deep cleaning of air

Porsche can be found in other sections.

Cleaning when lightly soiled

bag-related components, such as the

padded covers on the steering wheel,

f Wet a soft cloth with water or a neutral

f Please see the chapter “BATTERY” on

the underside of the instrument panel,

soap solution and wipe off the dirt.

page 303.

front seats, roof pillars, roof liners and the

For information on locking the vehicle when

rear interior trim panels, and around the

Cleaning when heavily soiled

the battery is disconnected:

seat backrest.

f Wet a soft cloth with lukewarm water or diluted

f Please see the chapter “NOT ALL VEHICLE

f Have your authorized Porsche dealer to clean

white spirit and dab the dirt from the outside

DOORS ARE LOCKED” on page 36.

these components.

in.

Cleaning the seat belts

Cleaning fabric linings

f Use mild detergent to clean soiled belts.

f Fabric linings on pillars, roofliner and sun

blinds, etc. must be cleaned only using

f When drying, avoid direct sunlight.

suitable cleaning agents or a suitable dry

f Only use suitable cleaning agents.

foam and a soft brush.

f Do not tint or bleach the belts.

The belt fabric could be weakened,

thus affecting safety.

276 Maintenance and Car Care

caught in the fan, belts or other moving parts.

f

Do not smoke or allow an open flame around

Exercise Extreme Caution when

The radiator and radiator fans are in the front

the battery or fuel.

Working on your Vehicle

of the car.

Keep a fire extinguisher close at hand.

The fans can start or continue running as a

Danger!

f

Incomplete or improper servicing may cause

function of temperature, even with the engine

problems in the operation of the car. If in doubt

Ignoring the following instructions may

switched off.

about any servicing, have it done by your

cause serious personal injury or death.

Carry out work in these areas only with the

authorized Porsche dealer.

engine off and exercise extreme caution.

f

The engine compartment of any motor vehicle

Improper maintenance during the warranty

is a potentially hazardous area. If you are not

f

Your Porsche is equipped with an electronic

period may affect your Porsche warranty

fully familiar with proper repair procedures, do

ignition system. When the ignition is on, high

coverage.

not attempt the adjustments described on the

voltage is present in all wires connected with

f

Supplies of fluids, e.g. engine oil, washer fluid,

following pages.

the ignition system; therefore, exercise

brake fluid or coolant, are hazardous to your

extreme caution when working on any part of

f

Only work on your vehicle outdoors or in a well

health.

the engine while the ignition is on or the engine

ventilated area.

Keep these fluids out of children's reach and

is running.

dispose of them in accordance with the

f

Ensure that there are no open flames in the

f

Always support your car with safety stands if it

appropriate regulations.

area of your vehicle at any time when fuel

is necessary to work under the car. The jack

fumes might be present. Be especially

f

Some countries require additional tools and

supplied with the car is not adequate for this

cautious of devices such as hot water heaters

special spare parts to be carried in your

purpose.

which ignite a flame intermittently.

vehicle. Please make enquiries before driving

Switch off level control of air suspension and

abroad.

f

Before working on any part in the engine

height adjustment.

compartment, turn the engine off and let it cool

Please see the chapter “RAISING THE VEHICLE

down sufficiently. Hot engine compartment

WITH A LIFTING PLATFORM, TROLLEY JACK

Note

components can burn skin on contact.

OR STANDARD JACK” on page 290.

The tools required for changing a wheel (e.g. jack,

f

When working under the car without safety

wheel bolt wrench, assembly aids) are not

f

Be alert and cautious around the engine at all

stands but with the wheels on the ground,

supplied as standard with the vehicle. Your

times while it is running. If you have to work on

make sure the car is on level ground, the

authorized Porsche dealer will be pleased to

the engine while it is running, always put the

wheels are blocked, and that the engine

advise you.

parking brake on and put the PDK selector

lever in position P or N.

cannot be started.

Withdraw ignition keys (switch ignition off in

f

In particular, be very careful to ensure that

vehicles that have Porsche Entry & Drive).

items of clothing (ties, shirt, sleeves etc.),

jewelry, long hair, hand or fingers cannot get

278 Minor Repairs

Warning triangle, first aid kit

3. Remove combination pack C containing the

Tool kit

first aid kit and/or warning triangle.

The warning triangle, together with the first aid kit,

The tool kit is stored at the left side under

is located in the storage compartment under the

Note

the luggage compartment floor.

load sill in the luggage compartment.

Replace any items you remove from the first aid kit

The tool kit contains the following:

1. Turn both twist-locks A 90°.

and any out-of-date items immediately.

A Wrench socket for security wheel bolt

2. Remove cover B.

B Tire sealant

C Tool box

D Towing lug

E Compressor

F Hexagon wrench for emergency operation

of slide/tilt roof (under the compressor)

Minor Repairs

279

Danger!

Tires and Wheels

Risk of loss of control and serious personal

The original equipment tires and wheel rims on

injury or death.

your Porsche comply with all applicable Federal

Motor Vehicle Safety Standards.

f

If while driving, your vehicle experiences a

sudden vibration or ride disturbance, and/or

For your safety remember the following:

you suspect that possible damage to your tires

or vehicle has occurred, you should

-

Wheel rims and wheel bolts are matched to fit

immediately reduce your speed without

your Porsche.

excessive use of the brakes.

-

If you intend to use other than original

equipment wheels, be sure that they conform

f

Stop the vehicle as soon as possible, and

to Porsche specifications for your model. Only

inspect the tires.

tires with the same make and with the same

If you cannot determine the cause for the

disturbance, have your vehicle towed to the

specification code (e.g. ”N0“, ”N1“...) can be

nearest Porsche or tire dealer to have your

mounted.

vehicle or tire(s) inspected.

-

The use of wheel rims and wheel bolts that do

f

Continuing to operate the vehicle without

not meet specifications of the original factory

correction could result in a loss of control and

Example

installed equipment will affect the safe

serious personal injury.

operation of your vehicle and affect warranty

coverage.

Uniform Tire Quality Grading

-

Before you plan on exchanging wheels, or

Quality grades can be found where applicable on

snow tires already mounted on the wheel rims,

the tire sidewall between tread shoulder and

consult your authorized Porsche dealer.

maximum section width.

Your dealer has the technical information

necessary to advise you which wheel rims and

All passenger car tires must conform to Federal

wheel bolts are compatible with the original

Safety Requirements in addition to these grades.

factory installations.

280 Minor Repairs

Treadwear

Temperature A, B, C

Tire pressures

The treadwear grade is a comparative rating

The temperature grades are A (the highest), B and

Danger!

based on the wear rate of the tire when tested

C, representing the tire's resistance to the

under controlled conditions on a specific

generation of heat and its ability to dissipate heat

Risk of accident.

government test course. For example, a tire

when tested under controlled conditions on a

Risk of serious personal injury or death.

graded 150 would wear one and a half (1-1/2)

specified indoor laboratory test wheel.

Driving the vehicle with low tire pressure

times as well on the government course as a tire

Sustained high temperatures can cause the

increases risk of a tire failure and resulting

graded 100. The relative performance of tires

material of the tire to degenerate and reduce tire

loss of control. Furthermore, low tire

depends upon the actual conditions of their use,

life, and excessive temperature can lead to

pressure increases rate of wear of the

however, and may depart significantly from the

sudden tire failure.

affected tires and cause damage.

norm due to variations in driving habits, service

The grade C corresponds to a level of

f

Always use an accurate tire pressure gage

practices and differences in road characteristics

performance which all passenger car tires must

when checking inflation pressures.

and climate.

meet under the Federal Motor Vehicle Safety

Standard No. 109.

f

Do not exceed the maximum tire pressure

Traction AA, A, B, C

Grades B and A represent higher levels of

listed on the tire sidewall. (Also refer to

performance on the laboratory test wheel than the

”Technical data“).

The traction grades, from highest to lowest, are

AA, A, B, and C and they represent the tire's ability

minimum required by law.

f

Please see the chapter “TIRE PRESSURE

to stop on wet pavement as measured under

PLATE” on page 283.

controlled conditions on specified government

Warning!

test surfaces of asphalt and concrete. A tire

f

Cold tire inflation pressure means: all tires

The temperature grade for this tire is

marked C may have poor traction performance.

must be cold, ambient temperature maximum

established for a tire that is properly inflated

68 °F (20 °C), when adjusting the inflation

and not overloaded. Excessive speed,

Warning!

pressure. Avoid sunlight striking the tires

underinflation, or excessive loading, either

before measuring cold pressures, since the

separately or in combination, can cause heat

The traction grade assigned to this is based

pressures would rise from temperature

buildup and possible tire failure, resulting

on braking (straight-ahead) traction tests

influence.

loss of control, leading to serious personal

and does not include cornering (turned)

traction, acceleration, hydroplaning or peak

injury or death.

traction characteristics.

Minor Repairs

281

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