
126
Instruments, On-Board Computer fPush the operating lever forward to end the 
call.Incoming call
fSelect “Accept” or “Refuse” and push the 
operating lever forward.
Note
Rejected phone calls can be recalled with the 
menu item “Missed calls”.
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138
Instruments, On-Board Computer fSelect “Continue” and push the operating lever 
forward.The tire selection has only been successfully 
completed when the message “Process 
complete” is displayed by the on-board computer. 
fSelect arrow (Back) and push the operating 
lever forward. The display returns to the tire 
pressure menu. 
The on-board computer additionally displays 
the message “System learning”.Note
The message “Process aborted” appears if the 
setting process is interrupted. All entries made up 
to this point are lost, and the original settings 
remain in effect.
Only if the message “Process complete” appears 
after the settings have been made will the Tire 
Pressure Monitoring re-learn the wheels.
fPlease see the chapter “SYSTEM LEARNING” 
on Page 140.
Before fitting tires with sizes which are not stored 
in the on-board computer, the missing information 
should be supplemented in the on-board 
computer.
fPlease consult your authorized Porsche 
dealer.
fUse only tires approved by Porsche.
The available items in the tire pressure menu 
depend on the equipment of your vehicle. For this 
reason it is possible that some of the items shown 
here are not available on your on-board 
computer’s display.
fMake sure that tire pressures correspond to 
the on-board computer settings. Correct the 
tire pressure if necessary.
fPlease see the chapter “TIRE PRESSURES FOR 
COLD TIRES 68 °F/20 °C” on Page 237.
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162
Maintenance, Car Care
Brake Fluid LevelfPlease see the chapter “EXERCISE EXTREME 
CAUTION WHEN WORKING ON YOUR VEHICLE” 
on Page 157.
fUse only new (unused) Original Porsche 
brake fluid. 
 Warning!
Brake fluid is hazardous to your health, and 
may cause death if swallowed.
Brake fluid also attacks paintwork. 
fKeep brake fluid out of children’s reach. 
fTake care while topping off brake fluid not to 
soil the luggage compartment or items of luggage. 
Checking the brake fluid levelThe reservoir for the hydraulic braking and clutch 
systems is located in the luggage compartment. 
1. Open and remove cover flap A.
2. Regularly check the brake-fluid level on the 
transparent expansion tank through the 
window B.
The fluid level should always lie between the 
minimum and maximum marks.A slight decrease in the fluid level due to wear and 
automatic readjustment of the disc brakes is 
normal.
If, however, the fluid level falls markedly or below 
the minimum mark, the braking system may have 
developed a leak.
fHave the brake system checked without delay 
at an authorized Porsche dealer.
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Maintenance, Car Care
179
The Porsche Light Alloy Wheel Cleaner 
(ph-value 9.5) can be used for this 
purpose.
If the ph-value of the detergent is incor-
rect, the protective coating on the wheels 
will be destroyed.
Polishes which dissolve oxides, such as those 
frequently used for other metals, or abrasive 
tools or agents are unsuitable because they 
break down the oxide film of the protective 
coating and will cause discoloration of the 
wheel. 
fEvery three months, after cleaning, coat the 
wheels with a car wax or non-corrosive grease 
(vaseline). 
Using a clean cloth thoroughly rub the grease 
into the surface. 
Door, roof, lid and window seals fWash dirt (e.g. abrasion, dust, road salts) from 
all seals regularly using warm soapy water. Do 
not use any chemical cleaning agents or 
solvents.
When there is a frost hazard, the outer door seals 
and the front and rear lid seals can be protected 
against freezing into place by a suitable care 
product. 
In order to prevent damage to the anti-
friction coating, the inner door seals must 
not be treated with care products. 
Headlights, lights, interior and exterior 
plastic parts, adhesive filmsfUse only clean water and a little dishwashing 
detergent to clean light lenses, plastic 
headlight lenses, plastic parts and surfaces.
Do not clean when dry.
Use a soft sponge or a soft, lint-free cloth. 
Gently wipe the surface without applying too 
much pressure.
The Porsche inside window cleaner is also 
suitable for cleaning plastic surfaces. 
Follow the cleaning instructions on the 
container.
Never use other chemical cleaners or 
solvents.
fRinse cleaned surfaces with clear water.Leather Characteristics and special features 
The natural surface markings of leather, e.g. 
creases, healed scars, insect sting marks, struc-
tural differences and slight variations in shade and 
grain add to the attractiveness of the natural 
leather product.
A special mention must be made here of natural 
leather. 
For natural leather, carefully selected hides of the 
highest quality are used. It is not covered comple-
tely with dye on production.
“Nature’s signature” is therefore easily recogniz-
able.This fine material is distinguished by an outstan-
ding seating comfort, special suppleness and a 
typical patina. 
Leather care and treatment 
fClean all types of leather regularly to remove 
fine dust using a soft, damp, white woollen 
cloth or a commercially available microfiber 
cloth. 
fRemove heavy contamination with Porsche 
leather cleaner. 
Please always follow the instructions for use 
given on the containers.
Caustic cleaners and hard cleaning objects 
must not be used. 
Perforated leather must under no circum-
stances get wet on its reverse side. 
Once cleaned, leather (particularly the heavily 
stressed leather seats) must be treated only with 
Porsche leather care liquid. 
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180
Maintenance, Car Care
Cleaning airbags covers
 Danger!
Risk of danger of serious personal injury or 
death if the airbag system is impaired by 
improper cleaning work.
fDo not make any modifications whatsoever on 
individual components such as the padded 
covers of the steering wheel, passenger side 
instrument panel, the front seats and the door 
linings.
fLet your authorized Porsche dealer clean these components.
Fabric, upholstery, carpets and 
floor-mats fUse only a vacuum cleaner or a medium stiff 
brush. 
fRemove stains and spots with Porsche stain 
remover.
The Porsche range of accessories includes 
nonskid floor-mats to protect the carpets in 
summer and winter. 
 Warning!
Risk of an accident resulting in serious 
personal injury or death. 
fAlways check the movement of the pedals 
before driving and make sure that they are not 
obstructed by a floor-mat or any other object. 
fSecure the floor-mat to prevent it from sliding 
into positions that could interfere with the safe 
operation of your vehicle - do not install them 
loosely in the vehicle.
Your Porsche dealer will be glad to offer you nonskid floor-mats of the correct size.
Alcantara fDo not use a leather care product to clean 
Alcantara. 
For regular care it is sufficient to clean the cover 
with a soft brush.
Heavy abrasion or rubbing when cleaning causes 
a lasting change in the surface.
Cleaning when lightly soiled 
fWet a soft cloth with water or a neutral soap 
solution and wipe off the dirt. 
Cleaning when heavily soiled 
fWet a soft cloth with lukewarm water or 
thinned white spirit and dab the dirt from the 
outside in. Safety belts If it becomes necessary to clean the belts, you 
can use any mild washing agent.
Allow the belts to dry prior to retracting, but avoid 
direct sunlight. 
fOnly use suitable cleaners.
If unsuitable cleaners are used or any attempt 
is made to dye or bleach the belts, the 
webbing may be weakened and thus constitute 
a safety risk. 
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Practical Tips, Emergency Service
185
Treadwear
The treadwear grade is a comparative rating 
based on the wear rate of the tire when tested 
under controlled conditions on a specific govern-
ment test course. 
For example, a tire graded 150 would wear one
and a half (1-1/2) times as well on the government 
course as a tire graded 100.
The relative performance of tires depends upon 
the actual conditions of their use, however, and 
may depart significantly from the norm due to var-
iations in driving habits, service practices and dif-
ferences in road characteristics and climate. 
Traction AA, A, B, C 
The traction grades, from highest to lowest, are 
AA, A, B, and C and they represent the tire’s ability 
to stop on wet pavement as measured under 
controlled conditions on specified government 
test surfaces of asphalt and concrete.
A tire marked C may have poor traction perfor-
mance. 
 Warning!
The traction grade assigned to this is based on 
braking (straight-ahead) traction tests and does 
not include cornering (turned) traction, accelera-
tion, hydroplaning or peak traction characteris-
tics. Temperature A, B, C 
The temperature grades are A (the highest), B and 
C, representing the tire’s resistance to the genera-
tion of heat and its ability to dissipate heat when 
tested under controlled conditions on a specified 
indoor laboratory test wheel.
Sustained high temperatures can cause the 
material of the tire to degenerate and reduce tire 
life, and excessive temperature can lead to 
sudden tire failure.
The grade C corresponds to a level of perfor-
mance which all passenger car tires must meet 
under the Federal Motor Vehicle Safety Standard 
No. 109.
Grades B and A represent higher levels of perfor-
mance on the laboratory test wheel than the 
minimum required by law. 
 Warning!
The temperature grade for this tire is established 
for a tire that is properly inflated and not 
overloaded.
Excessive speed, underinflation, or excessive 
loading, either separately or in combination, can 
cause heat buildup and possible tire failure, resul-
ting in serious personal injury or death. 
Tire pressures
 Warning!
Incorrect tire pressure causes increased tire 
wear and adversely affects road handling.
This could lead to tire failure, resulting in loss 
of control, leading to serious personal injury 
or death.
fAlways use an accurate tire pressure gauge 
when checking inflation pressures. 
fDo not exceed the maximum tire pressure 
listed on the tire sidewall. 
Please see the chapter “TIRE PRESSURE 
PLATE” on Page 235.
fCold tire inflation pressure means: all tires 
must be cold, ambient temperature maximum 
(68 °F/20 °C)
, when adjusting the inflation 
pressure. 
Avoid sunlight striking the tires before measu-
ring cold pressures, since the pressures would 
rise from temperature influence. 
fValve caps protect the valve from dust and dirt, 
and thus from leakage. 
Always screw caps tightly down. 
Replace missing caps immediately. 
fUse only plastic valve caps.
fDo not use commercially available sealant or 
tire inflating bottles. Only use Porsche approved tire sealant.
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Practical Tips, Emergency Service
189
 Danger!
Risk of serious personal injury or death. 
Driving the vehicle with low tire pressure 
increases risk of a tire failure and resulting 
loss of control. Furthermore, low tire 
pressure increases rate of wear of the 
affected tires.
fCheck tires – including sidewalls – regularly for 
foreign bodies, nicks, cuts, cracks and bulges.
fAfter driving off road, examine tires for signs 
of damage such as cuts, tears, bulges or 
foreign objects stuck in the tread. Replace a 
damaged tire if necessary.
fCross curb edges slowly and at right angles if 
possible. 
Avoid driving over steep or sharp curbs.
fIn cases of doubt, have the wheel (particularly 
the inner side) checked by an authorized Porsche dealer.
Tire replacements If in doubt, contact your authorized Porsche 
dealer.
Use only tire makes and types approved by 
Porsche. 
If you do not use a Porsche recommended 
replacement tire, make sure that you 
purchase your new tires from a reputable tire 
dealer and that the dealer complies with all 
manufacturers warnings for those tires. 
Only tires with the same make and with the 
same specification code (e.g. “N0”, “N1”...) 
can be mounted. 
Before mounting new tires, check with your 
Porsche dealer about the current release 
status. 
Use tires with “ZR” quality standards. There 
are currently no standards concerning tire 
strength at speeds above 150 mph (240 km/h). 
Tires should be replaced no less than on one axle 
at the time. 
Only tires of the same make and type must be 
used. Mixed tires are not permissible. 
Initially, new tires do not have their full traction. 
You should therefore drive at moderate speeds 
during the first 60 - 120 miles (100 - 200 km). If new tires are installed only on one axle, a notice-
able change in handling occurs due to the different 
tread depth of the other tires. 
This happens especially if only rear tires are 
replaced. However, this condition disappears as 
the new tires are broken in. 
fPlease adjust your driving style accordingly.
Installation of new tires should only be done by a 
qualified tire technician. 
Valves 
Please observe the installation and replacement 
instructions for valves.
fUse only genuine Porsche metal valves.
fProtect the valve inserts against soiling with 
valve caps.
Soiled valve inserts can cause a gradual loss 
of air.
fUse only plastic valve caps.
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204
Practical Tips, Emergency Service
A- Filler bottle
B- Filler hoseTire sealantThe tire sealant can be used to seal small cuts, 
especially in the tire tread.
Sealing the tire with the tire sealant is only an 
emergency repair, so you can drive to the next 
workshop. Even with the tire air-tight, it may be 
used only for short trips in an emergency.The tire sealant and a compressor with pressure 
tester can be found in the luggage compartment.
The tire sealant comprises: 
– A filler bottle
– A sticker denoting the maximum permissible 
speed for the driver’s field of vision
– A filler hose
– A valve turner and
– A spare valve insert.
 Danger!
Risk of accident, resulting in serious 
personal injury or death.
fUse the tire sealant only in the case of cuts or 
punctures no larger than 0.15 in. (4 mm).
fNever use the tire sealant if the rim is damaged.
 Warning!
The sealant is highly flammable and harmful 
to health.
fFire, open flame and smoking are prohibited 
when handling tire sealant.
fAvoid contact with skin, eyes or clothing due to 
caustic chemical properties of the tire sealant.
fKeep tire sealant away from children.
fDo not inhale vapors, due to consequent harm 
to personal health resulting in serious personal injury or death.
In case of contact with the sealant:
fIf sealant gets on the skin or in the eyes, 
thoroughly rinse the affected part of the body 
off immediately.
fChange soiled clothing immediately.
fGet medical attention immediately in the event 
of an allergic reaction.
fIf sealant was swallowed, thoroughly rinse out 
the mouth without delay and drink plenty of 
water.
Do not induce vomiting.
Get medical attention immediately.
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