2009 PORSCHE PANAMERA fuel

Driving and Driving Safety
169
Auto Start Stop FunctionThe engine stops automatically when the vehicle is
stopped, e.g. at traffic lights or in a traffic jam.
The Auto Start Stop function thus helps to
save fuel.
The ignition stays on even when the engine
switches off automatically. All safety functions
are still available.Stopping the engineThe Auto Start Stop function stops the engine
as soon as the vehicle stops moving.
1. Use the footbrake to hold the vehicle in place.
2. Keep the footbrake pressed.or
Move PDK selector lever to position P.
Preconditions for stopping the engine
– Engine compartment lid closed.
– Driver detected: driver’s seat belt fastened and driver’s door closed.
– PDK selector lever in position D, N or P or
transmission range 1 or 2 selected manually.
– Engine, transmission and battery are at operating temperature.
– Vehicle was driven at a speed of more than approx. 1 mph (2 km/h) for at least
1.5 seconds since the engine last stopped
automatically.
Starting the engineThe Auto Start Stop func tion starts the engine:
f In PDK selector-lever position D, N or manually
selected transmission range 1 or 2:
Release the footbrake.
or
Press the accelerator.
or
f Move PDK selector lever to position R.
You can drive off normally.
Note
The engine will start automatically in certain
situations, e.g. if the vehicle starts rolling, if air
conditioning causes reduced comfort, or if the
brake booster vacuum is reduced.
Starting the engine manually after leaving
the vehicle
If the driver’s seat belt is unbuckled or the driver’s
door is opened after the engine was stopped
automatically, the engine will not start
automatically.
Furthermore, if the brake is released, the engine
has to be started manually.
The message “Please start engine manually”
will appear on the multi-function display in the
instrument panel.
f Please see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 152.
Exceptions for the Auto Start Stop
functionThe Auto Start Stop function is not available in the
following situations, for example:
– When Sport mode is activated.
– When PSM is off.
– In Maneuvering mode.
– When AC MAX mode is activated.
– When the “Windshield defrost” function is active.
– While adjusting the chassis level.
– When the rear fog light is on.
The Auto Start Stop fu nction is available with
limited functionality in the following situations,
for example:
– If the air conditioning or passenger compartment heating is operated at a high
setting or if the defrost function is run for long
time periods.
– If the battery charging condition is low.
– On upward or downward slopes.
– During internal vehicle test procedures, e.g. automatic engine checks.
Note
If one of these situations arises after the engine
has stopped automatically, the engine can be
restarted automatically.

198
Driving and Driving Safety
Upshift prompt for fuel-economy-optimised
driving
The consumption-oriente
d upshift indicator A in
the tachometer at the ri ght beside the digital
speed display helps you to develop a fuel-saving
driving style.
The upshift indicator lights up - prompting you to
shift up to the next-higher gear - depending on the
selected gear, engine speed and accelerator
pedal position.
The upshift indicator is only active when “Sport” or
“Sport Plus” mode is switched off.
f Change to the next-higher gear when the
upshift indicator lights up. Shifting down –
f
Pull the PDK selector lever or shift button on
the steering wheel back.
You can shift up or down by the corresponding
number of gears by quickly pressing or pulling the
shift buttons or selector lever several times in
succession.
The transmission can be shifted up or down by
several gears in succession by continuously
operating the selector lever or shift buttons.
You can shift up or down at any time depending
on driving speed and engine speed.
Gear changes that would exceed the upper or
lower engine-speed limit are not executed by the
control unit.
There is no automatic upshift at the upper engine-
speed limit in selector-lever position M. Upshift
suppression can be cancelled by kickdown
operation. If, for example, the engine-speed limit
is reached during overtaking and an automatic
upshift does not occur, the transmission shifts up
in this case as a result of kickdown operation.
f Select an appropriately low gear on upward
and downward slopes.
This will ensure optimum use of engine power
and engine braking. To shift up automatically
at the upper engine-
speed limit:
f Press the accelerator pedal beyond the full-
throttle point (kickdown).
Failure of the selector lever display on the
instrument panel
The warning “Gearbox emergency operation”
appears in red on the multi-function display.
Effect:
– No selector-lever position is displayed on the instrument panel.
Vehicle can be driven only until it comes to
astop.
Action required:
f It is not possible to continue driving. Stop the
vehicle immediately in a suitable place. Have
the vehicle towed to a qualified specialist
workshop.
f Please see the chapter “TOWING” on
page 316.

214
Driving and Driving Safety
Warning messages
The warning message “Sport mode error”
appears on the multi-f
unction display in the
instrument panel in the event of a fault.
For information on warning messages on the
multi-function display:
f Please see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 152.
Note
After the ignition is switched off, Sport mode is
automatically reset to Normal mode.
f Please see the chapter “PORSCHE ACTIVE
SUSPENSION MANAGEMENT (PASM)” on
page 208.
f Please see the chapter “PORSCHE DYNAMIC
CHASSIS CONTROL (PDCC)” on page 211.
Sports Exhaust SystemSwitching on and offThe sports exhaust system can be switched to
a sound-optimised mode when the ignition is
switched on.
fPress button .
When the sports exhaust system is switched
on, the indicator light on the button lights up.
Retractable Rear SpoilerThe rear spoiler improves driving stability at high
speeds and reduces fuel consumption at low
speeds.
Vehicles with a turbo engine have an enhanced
rear spoiler with a larger aerodynamically
effective spoiler surface thanks to additional flaps.Automatic modeAutomatic extension and retraction of the rear
spoiler depends on various conditions.

232
Storage, Luggage Compartment and Roof Transport System
Roof Transport SystemA roof transport system can be fitted on the
vehicle for transporting awkward objects.
Various objects can be transported safely and
securely using the roof transport system and
additional attachments, e.g. ski rack, bicycle rack,
surfboard rack, roof box or snowboard holder.
fOnly use roof transport systems that have
been tested and approved by Porsche. It is not
possible to fit commercially available roof rack
systems.
Danger!
Risk of accidents if th e vehicle loses its roof
transport system due to excessive speed or
improper loading.
f Check the roof transport system and
attachments before every journey and at
regular intervals during a long journey to
ensure that they are fitted correctly and
securely. Tighten all fa stening screws again.
f Adjust your driving style accordingly by
maintaining a reasonable speed and slowing
hour vehicle turns.
f Do not drive at a speed of more than
80 mph (130 km/h) when the roof transport
system is fitted and loaded.
f Do not drive at a speed of more than
110 mph (180 km/h) when the roof transport
system is fitted but not loaded. Obey all traffic
laws.
f Load the roof transport system so that the
load does not protrude over the sides of the
roof transport system.
Never load the roof transport system wider
than the width of the vehicle.
f Position the center of gravity of the load as low
as possible with respect to the roof transport
system and distribute the load evenly over the
load area.
f Secure the load so that it will not move during
the journey.Do not use elastic rubber tensioners.
Caution!
Washing the vehicle in a car wash or failure
to observe the overall vehicle height or the
maximum permitted gross weight can
damage the vehicle or roof transport system.
f Remove the complete roof transport system
before washing the vehicle in a car wash.
f Check the overall vehicl e height with the roof
transport system fitted before driving into
multi-storey car parks, garages, underground
garages and tunnels.
f Do not exceed the maximum roof load,
maximum vehicle weight and maximum
axle loads.
For information on maxi mum permitted loads and
weights:
f Please see the chapter “WEIGHTS” on
page 328.
f Do not exceed the maximum permitted roof
transport system load of 70 kg.
f If you are not using the roof transport system,
remove it completely from the vehicle in order to save fuel and reduce noise.

Maintenance and Car Care
251
Maintenance and Car Care
Exercise Extreme Caution when Working
on your vehicle........
................................... 252
Engine Oil ............... ................................... 254
Checking Engine-Oil Le vel ........................... 254
Topping Up Engine Oil . .............................. 255
Checking Coolant Level and Adding
Coolant ........................................... .......... 257
Brake Fluid .................. .............................. 258
Washer Fluid .......... ................................... 259
Power Steering ...... ................................... 260
Changing Air Cleaner .................................. 261
Changing Particle Filt er ............................... 261
Wiper Blades ............... .............................. 261
Emission Control Syst em ............................ 262
How Emission Control Works ...................... 263
Fuel Economy .............. .............................. 264
Operating Your Porsche in other Countries ... 264
Fuel............................. .............................. 265
Fuel Can ...................... .............................. 267
Fuel Recommendation s............................... 268
Fuel Evaporation Contr ol ............................ 269
Car Care Instructions .................................. 269

252
Maintenance and Car Care
Exercise Extreme Caution when
Working on your vehicle
Danger!
Ignoring the following instructions may
cause serious personal injury or death.
f The engine compartment of any motor vehicle
is a potentially hazardou s area. If you are not
fully familiar with proper repair procedures, do
not attempt the adjustments described on the
following pages.
f O n l y w o r k o n y o u r v e h i c l e o u t d o o r s o r i n a w e l l
ventilated area.
f Ensure that there are no open flames in the
area of your vehicle at any time when fuel
fumes might be present. Be especially
cautious of devices such as hot water heaters
which ignite a flame intermittently.
f Before working on any part in the engine
compartment, turn the engine off and let it cool
down sufficiently. Hot engine compartment
components can burn skin on contact.
f Be alert and cautious around the engine at all
times while it is running. If you have to work on
the engine while it is running, always put the
parking brake on and put the PDK selector
lever in position P or N.
f In particular, be very careful to ensure that
items of clothing (ties, shirt, sleeves etc.),
jewelry, long hair, hand or fingers cannot get caught in the fan, belts or other moving parts.
The radiator and radiator fans are in the front
of the car.
The fans can start or continue running as a
function of temperature,
even with the engine
switched off.
Carry out work in these areas only with the
engine off and exercise extreme caution.
f Your Porsche is equipped with an electronic
ignition system. When the ignition is on, high
voltage is present in all wires connected with
the ignition system; therefore, exercise
extreme caution when working on any part of
the engine while the ignition is on or the engine
is running.
f Always support your car with safety stands if it
is necessary to work under the car. The jack
supplied with the car is not adequate for this
purpose.
Switch off level control of air suspension and
height adjustment.
Please see the chapter “RAISING THE VEHICLE
WITH A LIFTING PLATFORM, TROLLEY JACK
OR STANDARD JACK” on page 290.
f When working under the car without safety
stands but with the wheels on the ground,
make sure the car is on level ground, the
wheels are blocked, and that the engine
cannot be started.
Withdraw ignition keys (switch ignition off in
vehicles that have Porsche Entry & Drive). f
Do not smoke or allow an open flame around
the battery or fuel.
Keep a fire extinguisher close at hand.
f Incomplete or improper servicing may cause
problems in the operation of the car. If in doubt
about any servicing, have it done by your
authorized Porsche dealer.
Improper maintenance during the warranty
period may affect your Porsche warranty
coverage.
f Supplies of fluids, e.g. engine oil, washer fluid,
brake fluid or coolant, are hazardous to your
health.
Keep these fluids out of children's reach and
dispose of them in accordance with the
appropriate regulations.
f Some countries require additional tools and
special spare parts to be carried in your
vehicle. Please make enquiries before driving
abroad.

254
Maintenance and Car Care
Engine OilIt is important to perform oil changes regularly in
accordance with the intervals specified in your
Maintenance Schedule.Engine oil consumptionIt 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 afte r 600 miles (1000 km) or
more. This is because the oil is gradually
becoming 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
expressway, 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 de
termine 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 with every refueling.
– 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
engine rpm is above idle speed.
Checking Engine-Oil Levelf Check the oil level on the multi-function display
at regular intervals before refuelling.
f Please see the chapter “OIL LEVEL DISPLAY
AND MEASUREMENT OF THE ENGINE OIL
LEVEL” on page 121.
Warning!
Engine oil is hazardous to your health and
may be fatal if swallowed.
f Keep engine oil out of children's reach.
Used engine oil contains chemicals that have
caused cancer in laboratory animals.
f Always protect your skin by washing thoroughly with soap and water.
Top-up quantity
The difference between the minimum and
maximum marks on the segment display is
approx. 1.06 US quearts (1 liter).
One segment of the display corresponds to
a top-up quantity of approx. 0.26 US quarts
(0.25 liters).
f Never add more engine oil than required to
reach the maximum mark.

262
Maintenance and Car Care
Emission Control SystemIn the interest of clean airPollution of our environment has become a
problem that is of increasing concern to all of us.
We urge you to join us in our efforts for cleaner air
in controlling the pollutants emitted from the
automobile.
Porsche has developed an emission control
system that controls or reduces those parts of the
emission that can be harmful to our environment.
Your Porsche is equipped with such a system.
Porsche warrants the Emission Control System in
your new car under the terms and conditions set
forth in the Warranty Booklet.
You, as the owner of the vehicle, have the
responsibility to provide regular maintenance
service for the vehicle and to keep a record of all
maintenance work performed. To facilitate record
keeping, have the service performed by
authorized Porsche dealers. They have Porsche
trained technicians and special tools to provide
fast and efficient service.To assure efficient operation of the Emission
Control System:
f
Have your vehicle maintained properly and in
accordance with the recommendations
described in your Mai ntenance Booklet. Lack
of proper maintenance, as well as improper
use of the vehicle, will impair the function of
the emission control system and could lead to
damage.
f Do not alter or remove any component of the
emission control system.
f Do not alter or remove any device, such as
heat shields, switches, ignition wires, valves,
etc., which are designed to protect your
vehicle's emission control system. In addition
to serious engine damage, this can result in a
fire if excess raw fuel reaches the exhaust
system.
f Do not continue to operat e your vehicle if you
detect engine misfire or other unusual
operating conditions.
Parking
Danger!
Danger of fire resulting in serious personal
injury or death.
f Do not park or operate the vehicle in areas
where the hot exhaust system may come in
contact with dry grass, brush, fuel spill or
other flammable materials.
f If your car catches on fire for any reason, call
the fire department. Do not endanger your life by attempting to put out the fire.
Undercoating
Danger!
Danger of fire resulting in serious personal
injury or death.
f Do 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.