2009 PORSCHE 911 oil level measurement

124
Instruments, On-Board Computer, Warnings The oil pressure is controlled as required and
should be at least 3.5 bar at an engine speed of
5000 rpm.
The engine oil pressure varies depending on the
engine speed, engine load and engine tempera-
ture.If oil pressure drops abruptly and a message
is displayed on the on-board computer when
the engine is running on or when driving:
fStop immediately in a suitable place.
fSwitch off the engine.
fCheck whether there is an obvious oil leak on
or under the car.
fIf no oil leak can be detected: With the engine
idling, measure the oil level with the on-board
computer.
fPlease see the chapter “OIL DISPLAY AND
MEASUREMENT OF THE ENGINE OIL LEVEL”
on Page 153.
fPlease see the chapter “ENGINE OIL LEVEL”
on Page 208.
fAdd engine oil if necessary.
Caution!
Risk of engine damage.
fDo not continue driving if there is an obvious oil
leak.
fDo not continue driving if the warning lights
come on even though oil level is correct.
fHave the fault remedied at the nearest authorized Porsche dealer.If the battery voltage drops abruptly, a warning
message will be displayed by the on-board compu-
ter.
If the warning is displayed by the on-board
computer while the engine is running or while
driving:
fStop the car in a safe place and stop the
engine.
Possible causes
– Defect in the battery charging system.
– Broken drive belt.
Warning!
Risk of engine damage with resultant loss of
control and accident, leading to serious per-
sonal injury or death.
A broken drive belt means there is no power
assistance to the steering (more effort is re-
quired to steer) and coolant pump function
will stop.
fDo not continue driving.
fHave the fault remedied at the nearest author-ized Porsche dealer.
Engine Oil Pressure
Battery

Instruments, On-Board Computer, Warnings
153
OIL
Display and measurement of the engine
oil level
Caution!
Risk of engine damage.
fRegularly check the oil level each time before
refueling.
fDo not allow the oil level to fall below the minimum mark.
Conditions for measuring the oil level
1. Vehicle stationary.
2. It is important to ensure that the vehicle is
horizontal for correct oil level measurement
to occur.
3. Engine must be at operating temperature
(at least 140 °F/60 °C).
4. Engine must be idling.Initiating oil level measurement
1. Push operating lever forward in order to switch
on the selection field.
2. Select “OIL” with the operating lever.
3. Push operating lever forward. Measurement is
started. 4. Allow waiting time to elapse.
5. Once the measurement has been completed,
you can read off the engine oil level on the
segment display.

154
Instruments, On-Board Computer, Warnings 6. If the segments are filled in up to the top line,
the oil level has reached the maximum mark.
Under no circumstances add engine oil.7. If the bottom segment is filled in, the oil level
has reached the minimum mark.
Add engine oil immediately.
8. If the bottom segment flashes, the oil level has
dropped to below the minimum mark.
Add engine oil immediately.
The difference between the minimum and
maximum marks on the segment display is
approx. 1.3 quarts (1.25 litres).
One segment of the display corresponds to a
top-up quantity of approx. 0.42 quarts (0.4 litre).
fAdd engine oil if necessary.
Switch off ignition before adding engine oil.fPlease see the chapter “ENGINE OIL LEVEL”
on Page 208.
fNever add more engine oil than required
to reach the maximum mark.
Failure
A failure of the oil level display is indicated by a
warning message on the on-board computer.
“Check engine oil level” display
The on-board computer display “Check engine oil
level” is an additional measurement that takes
place in the background while driving.
The display depends on the distance travelled.
This display appears if the oil level has reached the
minimum mark or if the oil level is well above the
maximum mark.
This message must be acknowledged by
measuring the engine oil level manually using the
on-board computer.
fPlease see the chapter “INITIATING OIL LEVEL
MEASUREMENT” on Page 153.
If oil level measurement was initiated manually on
the on-board computer and no oil was added, the
message “Check engine oil level” is displayed
again when the vehicle is driven.

158
Warnings
Warnings on the instrument panel and the on-board computerIf a warning message appears, always refer to the corresponding chapters in the Owner’s Manual.
Warning messages are issued only if all measurement preconditions are met. Therefore, check all fluid levels regularly –
in particular, always check the engine oil level before refuelling.
Instrument
panelOn-board
computerText display on on-board
computerMeaning/measure
Seat belt Driver and passengers must fasten their seat
belts.
Handbrake Handbrake is still on.
Ignition key
not removed
Replace battery
in ignition keyReplace the remote-control battery.
Ignition lock faulty,
please go to workshopHave the fault remedied at an authorized
Porsche dealer.
Ignition lock faulty,
visit workshop nowHave the fault remedied at an authorized
Porsche dealer.
Relieve steering Relieve the steering l o c k b y m o v i n g t h e s t e e r i n g
wheel to the left or right.
Steering locked The steering wheel lock remains engaged.
Have the fault remedied at an authorized
Porsche dealer.
Lights on Low beam/side marker lamps on
Parking light on Left/right parking light on

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

Warnings
161
Warning Battery/generator Stop at a safe place and switch the engine off.
Do not continue driving.
Have the fault remedied at an authorized
Porsche dealer.
Oil pressure gage faulty Have the fault remedied at an authorized
Porsche dealer.
Oil level display faulty Have the fault remedied at an authorized
Porsche dealer.
Oil temperature gage faulty Have the fault remedied at an authorized
Porsche dealer.
Oil temperature
too highSwitch engine off and let it cool. Check oil level
and, if necessary, add oil.
Please observe the chapter “OIL DISPLAY AND
MEASUREMENT OF THE ENGINE OIL LEVEL“.
Indicator faulty Coolant indicator failed.
Have the fault remedied at an authorized
Porsche dealer.
Brake pad wear Have the brake pads changed immediately at an
authorized Porsche dealer.
Warning – Brake fluid level Stop immediately in a suitable place.
Do not continue driving. Have the fault remedied
at an authorized Porsche dealer.
Warning – Brake circuit division Stop immediately in a suitable place.
Do not continue driving. Have the fault remedied
at an 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).

Index
305
Temperature....................................... 116
Topping off engine oil .......................... 209
OIL Display and measurement of the
engine oil level ............................................ 153
On-board computer ..................................... 126
Basic settings ............................. 127, 155
Calling on-board computer functions ..... 127
Functions and display possibilities ........ 127
General information ..................... 156, 157
Language versions .............................. 155
Operation, controls ............................. 126
Selecting a radio station ...................... 142
Setting the clock ................................. 156
Switching daytime driving lights on/off.. 156
Switching on navigation ....................... 142
Tire pressure warnings ........................ 149
Warnings and messages...................... 158
On-board literature .......................................... 2
Operating voice control ............................... 126
Operating your Porsche in other Countries .... 214
Orientation light ............................................ 71
Outside temperatur indicator ....................... 123
Oxygen sensor ........................................... 219
PPaint
Care .......................................... 224, 227
Data................................................... 285
ParkAssistant ............................................... 72
Parking
PDK transmission................................ 175
Parking aids ........................................... 72, 73
Parking brake ............................................... 57
Warning light ........................................ 58Parking light ...........................................80, 82
Particle filter ...............................................222
Passenger compartment monitoring ...............23
PDK transmission........................................170
Drive-Off Assistant ...............................169
Driving in winter ..................................175
Faults .................................................171
Kickdown............................................173
Launch Control....................................173
Manual selection mode ........................174
Reduced driving program.....................176
Selector lever emergency release ........280
Selector lever positions .......................172
Shifting gears on the steering wheel .....173
Sport mode ........................................172
Transmission fluid ...............................222
Warning messages ..............................176
Pen holder ....................................................92
Plastic parts ...............................................229
Care...................................................229
Platform lift.................................................254
Porsche Active Suspension Management
(PASM) .........................................................69
Sport mode ..........................................69
Porsche Ceramic Composite Brake (PCCB) .......4
Porsche Communication Management (PCM)...98
Porsche Doppelkupplung (PDK) ....................170
Drive-Off Assistant ...............................169
Driving in winter ..................................175
Faults .................................................171
Kickdown............................................174
Launch Control....................................170
Manual selection mode ........................174
Reduced driving program.....................176Selector lever emergency release ....... 280
Selector lever position ................ 170, 172
Shifting gears on the steering wheel .... 173
Sport mode ....................................... 172
Transmission fluid.............................. 222
Porsche Stability Management (PSM) ............. 66
Information light ................................... 68
Porsche traction management (PTM) ............. 63
Power steering fluid level .................... 221, 290
Power windows .................................... 18, 181
Practical tips.............................................. 234
Putting vehicle into operation ...................... 263RRadiator fan ......................................... 78, 208
Radio reception............................................ 98
Rain sensor ........................................... 83, 85
Range on remaining fuel..................... 127, 157
Reading light................................................ 71
Rear hatch ................................................. 200
Rear lid ................................................. 93, 94
Rear seat backrests..................................... 37
Rear spoiler ................................................. 69
Automatic mode ................................... 70
Manual control ..................................... 70
Rear view mirrors ................................... 27, 28
Rear window defogger.......................... 29, 110
Rear window heating.................................. 110
Rear window wiper ....................................... 84
Recirculating-air button ............................... 107
Refuelling .................................................. 216
Relays ....................................................... 257
Remote control ............................................ 16
Readiness ............................................ 17