2009 PORSCHE 911 low oil pressure

160
Warnings
LIMIT
Cannot be accepted
with vehicle stoppedThe current speed can only b e a c c e p t e d f o r t h e
acoustic warning signal when the vehicle is in
motion.
LIMIT
30Selected speed limit (e.g. 30 mph) for the
acoustic warning signal has been exceeded.
Adjust your speed if necessary.
Fuel gage warning
lightConsider remaining range Refuel at next opportunity.
Check engine oil level Start engine oil level measurement in the
on-board computer.
Engine oil pressure too low Stop immediately at a suitable place, measure
oil level with the on-board computer and, if nec-
essary, add engine oil.
Warning light
Temperature gageEngine temperature too high Switch engine off and let it cool.
Check coolant level and, if necessary,
add coolant.
Temperature gage
warning light flash-
esCheck coolant level Switch engine off and let it cool.
Check coolant level and, if necessary, add cool-
ant.
Engine diagnostics – workshop Stop immediately at a suitale place and check
tank cap for proper fastening. If the tank cap
was fastened correctly, consult your authorized
Porsche dealer.
Reduced engine power Consult your authorized Porsche dealer.
Temperature gage
warning light flash-
esFailure of
engine compartment blowerConsult your authorized Porsche dealer.
Instrument
panelOn-board
computerText display on on-board
computerMeaning/measure

208
Maintenance, Car Care
Engine-compartment blower,
radiator fan The radiator and radiator fans are in the front of
the car.
The engine-compartment blower is mounted on
the engine compartment lid.
Warning!
Risk of injury.
After the engine is switched off, the engine-
compartment temperature is monitored for
approx. 30 minutes.
During this period, and depending on tem-
perature, the engine-compartment blower
may continue to run or start to run.
fCarry out work in these areas only with the en-
gine off, the ignition off, and exercise extreme
caution.
Risk of injury. The radiator fans in the front
end of the car may be operating or
unexpectedly start operating when the
engine is switched on.
fCarry out work in these areas only with the en-gine switched off.
Engine Oil It is important to perform oil changes regularly in
accordance with the intervals specified in the
“Maintenance” booklet.
Engine oil consumption
It is normal for your engine to consume oil.
The rate of oil consumption depends on the quality
and viscosity of oil, the speed at which the engine
is operated, the climate, road conditions as well
as the amount of dilution and oxidation of the
lubricant.
If the vehicle is used for repeated short trips, and
consumes a normal amount of oil, the engine oil
measurement may not show any drop in the oil
level at all, even after 600 miles (1,000 km) or
more. This is because the oil is gradually becom-
ing diluted with fuel or moisture, making it appear
that the oil level has not changed.
The diluting ingredients evaporate out when the
vehicle is driven at high speeds, as on an express-
way, making it then appear that oil is excessively
consumed after driving at high speeds.
If the conditions you drive your vehicle in are
dusty, humid, or hot, the frequency of the oil
change intervals should be greater. If the vehicle is driven at a high rate of speed,
climatic conditions are warm, and the load is high,
the oil should be checked more frequently, as
driving conditions will determine the rate of oil
consumption.
– The engine in your vehicle depends on oil to
lubricate and cool all of its moving parts.
Therefore, the engine oil should be checked
regularly and kept at the required level.
– Make it a habit to have the engine oil level
checked at every fuel filling.
– The oil pressure warning light is not an oil level
indicator.
The oil pressure warning light indicates serious
engine damage may be occuring when lit, if en-
gine rpm is above idle speed.
Engine Oil Level fPlease see the chapter “EXERCISE EXTREME
CAUTION WHEN WORKING ON YOUR VEHICLE”
on Page 206.
fRegularly check the oil level using the on-board
computer after the vehicle is refuelled.
Please see the chapter “OIL DISPLAY AND
MEASUREMENT OF THE ENGINE OIL LEVEL”
on Page 153.
The difference between the minimum and maxi-
mum marks on the segment display is approx.
1.3 quarts (1.25 liters).
Each segment of the display corresponds to ap-
prox. 0.42 quart (0.4 liter).

Maintenance, Car Care
225
Washing The best method of protecting your car from the
damaging effects of the environment is frequent
washing and the application of a preservative. The
underside of your vehicle should also be thorough-
ly washed for cinders, salt or sanding at winter’s
end.
The longer salt, road dust and industrial dust,
dead insects, bird droppings or substances from
trees (resin, pollen) are allowed to remain on the
bodywork, the more serious is their harmful ef-
fect.
New 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 also more susceptible to scratch-
ing because of the composition of their pigments
and require particularly careful paint care.
fDo not wash your car in bright sunlight or while
the bodywork is still hot.
fWhen washing by hand, use abundant water, a
soft sponge or wash brush, and Porsche car
shampoo.
fBegin by spraying the body thoroughly with wa-
ter to rinse away loose dirt.fAfter washing, rinse the car with plenty of wa-
ter and then dry with a chamois leather.
Do not use the same chamois leather for dry-
ing as you use for cleaning the windshield and
windows.
Warning!
Moisture which gets on to the brakes during
a car wash can reduce braking efficiency or
make the brakes pull unevenly which could
increase the danger of an accident, causing
serious personal injuries or death.
fAfter washing the car, test the brakes and
steering and briefly brake the discs dry.
When doing this, take care not to hamper other
road users behind you (traffic conditions per-mitting).
Automatic car washes
fPlease see the chapter “WIPER BLADES” on
Page 223.
Optional add-on parts or parts which project be-
yond the contours of the vehicle may be damaged
by design features (e.g. brushes) of automatic car
washes.The following parts are particularly
susceptible to damage:
– Convertible top (hot wax treatment cannot be
used, as the wax attacks the convertible top
material)
– Windshield wipers (always switch them off to
prevent them wiping unintentionally in intermit-
tent or sensor operation)
– External antennas (always unscrew)
– Roof Transport System (always remove com-
pletely)
– Rear spoiler
– Wheels (the wider the rim and the lower the tire
height, the greater the risk of damage)
– High-gloss wheels (to prevent these from get-
ting scratched, do not clean with the wheel-
cleaning brushes of the car wash).
fPlease consult the operator before using auto-
matic car washes.
fWash and dry by hand all points not reached by
a car wash, such as door and lid seams or
door sills.
Note
Automatic car washes spray water at odd angles
and high pressures, which are not seen in normal
driving. Therefore, water can sometimes find its
way into the passengers compartment during or
shortly after the car wash.

Practical Tips, Emergency Service
239
Danger!
Driving on worn tires can result in loss of con-
trol of the vehicle and could cause serious
personal injuries or death.
fDo not drive with worn tires or tires showing
cuts or bruises as they may lead to sudden
deflation and loss of control which could cause
severe personal injury.
fSpecialized high performance tires on high
performance sports cars exhibit more wear
than those on a family sedan, or even a high
performance sedan.
Therefore, it is important to check your tire
pressure and condition at least every two weeks.
If you notice that tires are wearing unevenly, con-
sult your Porsche dealer.
Uneven wear may not always be due to improper
wheel alignment. It can be the result of individual
driving habits such as cornering at high speeds. If
the tire pressure is not checked and adjusted
regularly, abnormal tire wear can also occur.
Tire care fAvoid damaging tires and wheel rims.
fIf you must drive over a curb or other obstacle,
drive slowly and at an obtuse angle.
fCheck tires for uneven wear and damage
before driving off.
fRemove imbedded material.
fReplace worn or damaged tires immediately.
fKeep oil, fuel, brake fluid, etc. away from tires.
fReplace missing valve stem caps.
fKeep tires inflated correctly.
fWash tires when washing the vehicle. Also
clean inner side of wheels.
fDo not use abrasive cleaners when washing
the wheels.
fCheck wheel rims for corrosion.
fRemove road salt, if driving in winter.
Tire damage, puncture High-pressure cleaning units can damage the
tires.
fPlease see the chapter “HIGH-PRESSURE
CLEANING UNITS, STEAM CLEANERS” on
Page 224.
fCheck tires for imbedded material, cuts, punc-
tures, cracks and bulges (side wall) before driv-
ing off.
In case of tire damage, where it is uncertain wheth-
er there is a break in the ply with all its conse-
quences or tire damage caused by thermal or me-
chanical overloading due to loss of pressure or
any other prior damage, we recommend that the
tire be replaced for safety reasons.
If one faulty tire is replaced it should be noted that
the difference in tread depth on one axle must not
exceed 30%.
Handling inconsistencies may result.
fPerform a visual inspection if necessary.

240
Practical Tips, Emergency Service
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 pres-
sure 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 for-
eign objects stuck in the tread. Replace a dam-
aged 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 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 re-
placed. 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
Rubber valve stems must be replaced every time
a tire is replaced.
For metal valves, the installation and replacement
instructions must be observed.
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.

252
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 journeys 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 per-
sonal 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 dam-aged.
Warning!
The sealant is highly flammable and harmful
to health.
fFire, naked 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.

Index
303
Lids ................................................... 260
Lifting/Sliding roof.............................. 179
Tank flap ............................................ 215
Emergency service ..................................... 234
Emergency starting with
jumper cables..................................... 267, 268
Emission control system ............. 125, 218, 219
Engine
Checking the oil level........................... 153
Diagram ............................................. 299
Exhaust .................................................. 5
Number .............................................. 285
Oil consumption ............................ 10, 208
Oil level .............................................. 208
Oil level indicator................................ 153
Oil pressure ........................................ 124
Oil temperature................................... 116
Oils ............................................ 208, 290
Speeds ................................................ 10
Starting ................................................ 77
Stopping .............................................. 78
Engine compartment
Blower ......................................... 78, 120
Blower fan .......................................... 120
Care .................................................. 227
Lid ................................................. 93, 94
Lid warning light.................................... 93
Engine oil
Change .............................................. 210
Consumption ........................................ 10
Performance class .............................. 211
Recommendation ................................ 210
Topping off ......................................... 209
Viscosity ............................................ 211Exhaust
Pipes .....................................................5
System.................................................57
Tailpipes, stainless steel ......................229
External antenna .........................................100
FFabric linings ..............................................230
Filler flap ....................................................215
Filling pressure, tire.....................................289
Fire extinguisher .........................................102
Flat tire ......................................................251
Floor mats ..................................................230
Fluids .........................................................222
Fluids and fuels ...........................................290
FM reception ................................................98
Fog light, rear ...............................................80
Footbrake.....................................................58
Four-wheel drive ............................................63
Fresh air intake ...........................................109
Front lid .................................................93, 94
Fuel ................................................... 122, 215
Containers ......................................5, 217
Economy ............................................214
Evaporation control.............................217
Fuels containing ethanol.......................217
Level gage .........................................122
Level warning light..............................122
Recommendation ........................216, 217
Recommendations ..............................216
Tank ..................................................216
Function keys ...............................................39
Fuses, replacing .........................................259
GGarage
Door ................................................... 78
Door opener ...................................... 103
Lift .................................................... 254
Gear display ...................................... 112, 114
Gear shift indicator ..................................... 119
Glass rear hatch......................................... 200
Glass rear hatch (Targa)
Unlocking ............................................ 16
Glass roof.................................................. 200
Glove compartment ...................................... 92
Gong ....................................... 14, 75, 80, 129
Ground clearance ........................................... 5HHandbrake ................................................... 57
Hardtop ..................................................... 194
Putting on .......................................... 196
Removing .......................................... 194
Head restraints ............................................ 30
Headlights ................................................. 270
Adjusting ................................... 278, 279
Beam adjustment ................................. 81
Cleaning system ........................... 83, 220
Flasher ................................................ 82
Heated rear window..................................... 29
Heated rear window/Door mirror heating ..... 110
Heater ....................................................... 106
High beam
Indicator light ..................................... 119
Lever................................................... 80
High-pressure cleaning units........................ 224
Home mode................................................. 81

304
Index HomeLink................................................... 103
Hoods.................................................... 93, 94
Horn ................................................ 12, 19, 21
Hot exhaust pipes ........................................... 5
IIgnition key................................................... 74
Emergency operation ............................ 76
Ignition lock.................................................. 74
Withdrawing ignition key,
PDK transmission................................ 172
Immobilizer .................................................. 15
Indicator lights.................................... 112, 114
INFO Warning messages ............................. 132
Instrument
Illumination ......................................... 116
Lights .................................................. 80
Panel ................................. 112, 114, 158
Interior lights ................................................ 71
Interior mirror ............................................... 28JJumper cables ............................................ 267KKey codes .................................................... 15
Key-operated airbag deactivation device ......... 49
Keys ...................................................... 15, 16LLATCH System ............................................. 54
Launch Control ........................................... 173
Leather care .............................................. 230License plate light ......................................... 80
Lids ............................................................. 94
Emergency unlocking .......................... 260
Lifting vehicle ............................................. 254
Lifting/sliding roof....................................... 178
Light
Daytime driving ..................................... 80
Flasher ................................... 80, 82, 119
Low beam ...................................... 80, 82
Sensor for instrument illumination. 112, 114
Switch ............................................ 80, 82
Light alloy wheels
Inscription .......................................... 245
Lights
Care .................................................. 229
Headlight beam adjustment.................... 81
LIMIT Acoustic warning signal for speed limit. 129
Load switch-off ........................................... 258
Loading information .................................... 246
Locking ........................................................ 19
Conditions ............................................ 21
Locking retractor .......................................... 53
Low beam .................................................... 82
Lowering ...................................................... 56
Luggage carrier .................................. 291, 292
Luggage compartment ............................ 95, 97
Lid ....................................................... 93
Lid warning light.................................... 93
Unlocking lid ......................................... 16
Luggage compartment/
engine compartment lid, warning lights ........... 93
Luggage rack ............................................. 204
MMaintenance ...............................................206
Make-up mirror .............................................40
Maximum permitted engine speeds ................10
Manual transmission............................168
Mirror
Folding in ..............................................28
Heating ........................................29, 110
Inside ...................................................27
Mirrors ...................................................27, 73
Anti-glare ..............................................28
Multi-functional steering wheel ........................39NNavigation ....................................................98
Selection field, on-board computer .......142
Notes on
Car care .............................................224
Maintenance .......................................206
Number plate light.................................80, 277OOctane rating ......................................216, 217
Odometer ...................................................117
Off delay ......................................................81
Oil..............................................................208
Change...............................................210
Checking level.....................................153
Consumption.........................................10
Level checks.......................................208
Level indicator ....................................153
Pressure.............................................124
Recommendation ................................210