2006 PORSCHE CAYMAN Owners Manual

Shifting Gear
169
M - Manual Selection Mode The currently selected gear is retained if you
change from D to M.
If you shift from M to D, the gear-changing map
suitable for your current driving style is selected
and the appropriate gear is selected.
Warning!
The kickdown function is not active in manual
selection mode “M”.
fTherefore shift down manually when accelerat-ing (e.g. to overtake). Two toggle switches in the upper steering-wheel
spokes let you comfortably and reliably select the
five forward gears.
Shifting up
fPress upper part (+) of a toggle switch.
Shifting down
fPress lower part (–) of a toggle switch.
Depending on driving speed and engine speed,
you can shift up or down at any time.
Gear changes which would exceed the upper or
lower engine-speed limit are not executed by the
controller.
You can shift down two gears at once by quickly
pressing the toggle switches twice.
If the engine-speed limit is reached, an auto matic
upward shift is performed or, just before idling
speed is reached, a downward shift is performed.
fSelect an appropriately low gear on upward
and downward slopes.
This will ensure optimum use of engine power
and engine braking. If manual mode fails, the control electronics
switch to automatic mode. In this event, the
instrument cluster will display selector lever posi-
tion D.
fTo remedy the fault, please consult an author-
ized Porsche dealer.
PSM switched off and/or Sport mode
switched on
fPlease observe the chapter “SWITCHING OFF
PSM” on Page 63.
fPlease observe the chapter “SPORT MODE” on
Page 61.
If the PSM is switched off and/or Sport mode is
switched on, an automatic upshift does not occur
when the engine speed limit is reached.
Cancelling upshift suppression
The restriction can be cancelled for one gear
change by depressing the accelerator to
kickdown. If, for example, the engine speed limit
is reached during overtaking and the automatic
upshift does not occur, the transmission in this
case shifts up by accelerating to kickdown.
fDepress the accelerator pedal beyond the
full-throttle point (kickdown).

170
Shifting Gear Manual mode failure
If manual mode fails, the control electronics
switch to automatic mode. In this event, the
instrument cluster will display selector lever
position D.
fHave the fault remedied.
Consult an authorized Porsche dealer.
Stopping fFor a brief stop, e.g. at a traffic light, leave the
selector lever in drive position and hold the ve-
hicle with the brake pedal.
fFor a longer stop with the engine running,
select position N (neutral).
fDo not hold the car on a slope using the
accelerator. Use the brake pedal or the hand-
brake instead.
fBefore leaving the vehicle, always apply the
handbrake and move the selector lever to
position P.
Parking fGo easy on the accelerator.
fWhen parking or maneuvering in a small
space, control the speed by careful use of the
footbrake. Driving in winter In wintery road conditions it is advisable to take
steep inclines in manual mode. This prevents the
occurrence of gear changes that could cause
wheelspin. Tow-starting, towing fPlease observe the chapter “TOWING” on Page
260.
Emergency program
Warning!
Reverse gear lock monitoring is disabled in
the emergency running program.
Damage to the vehicle may result as well as
loss of control, if the vehicle is moving for-
w a r d f a s t e n o u g h t o c a u s e r e a r w h e e l l o c k u p .
fDo not shift into R while the vehicle is moving forward.
A transmission fault is indicated by the following
symptoms:
–The 4th-gear display flashes.
– The warning “Tiptronic emergency run”
appears in the on-board computer.
– The transmission no longer shifts.
Regardless of selector lever position, 4th is
the only forward gear still available.
fAdapt your driving style to the changed han-
dling.
fTo remedy the fault, please consult an author-
ized Porsche dealer.

Maintenance, Car Care
171 Maintenance, Car Care
Exercise Extreme Caution when Working on your
Vehicle ..................................................... 172
Wiper Blades ............................................ 173
Coolant Level ............................................ 176
Engine Oil ................................................. 178
Engine Oil Level ........................................ 178
Engine Oil Recommendation ....................... 180
Brake Fluid Level ....................................... 182
Fuel Economy ........................................... 184
Operating Your Porsche in other Countries .. 185
Fuel .......................................................... 186
Fuel Recommendations .............................. 188
Portable Fuel Containers ............................ 189
Emission Control System ........................... 190
How Emission Control Works ...................... 191
Fuel Evaporation Control ............................ 191
Washer Fluid ............................................. 192
Power Steering ......................................... 193
Air Filter ................................................... 194
Combination filter ...................................... 194
Automatic Transmission Fluid ..................... 194
Manual Transmission Oil ............................. 194
Car Care Instructions ................................. 195

172
Maintenance, Car Care
Exercise Extreme Caution when
Working on your Vehicle
Danger!
Ignoring the following instructions may
cause serious personal injury or death.
fThe engine compartment of any motor vehicle
is a potentially hazardous area. If you are not
fully familiar with proper repair procedures, do
not attempt the adjustments described on the
following pages.
This caution applies to the entire vehicle.
fO 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.
fEnsure that there are no open flames in the
area of your vehicle at any time when fuel
fumes might be present. Be especially cau-
tious of such devices such as hot water heat-
ers which ignite a flame intermittently.
fBefore working on any part in the engine com-
partment, turn the engine off and let it cool
down sufficiently. Hot engine compartment
components can burn skin on contact.
fBe alert and cautious around engine at all
times while the engine is running.
If work has to be performed with the engine
running, always set the parking brake, and
make sure the shift lever is in neutral or the se-
lector lever is in position P or N. fIn particular, be very careful to ensure that
items of clothing (ties, shirt, sleeves etc.), jew-
elry, long hair, hand or fingers cannot get
caught in the engine-compartment blower, 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 en-
gine off and exercise extreme caution.
fYour Porsche is equipped with an electronic ig-
nition system. When the ignition is on, high volt-
age 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.
fAlways place the vehicle on stable supports if
work has to be carried out under the vehicle.
Jacks are not suitable for this kind of work.
fWhen 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 can-
not be started.
Remove the ignition key. fDo not smoke or allow an open flame around
the battery or fuel.
Keep a fire extinguisher close at hand.
fIncomplete or improper servicing may cause
problems in the operation of the car. If in doubt
about any servicing, have it done by your au-
thorized Porsche dealer.
Improper maintenance during the warranty pe-
riod may affect your Porsche warranty cover-
age.
fSupplies of fluids, e.g. engine oil, 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 appro-
priate regulations.
fSome countries require additional tools and
special spare parts to be carried in your vehi-
cle.
Please make enquiries before driving abroad.
Power measurements Power measurements on dynamometers are not
approved by Porsche. Working in the engine compartmentHave the necessary work in the engine compart-
ment done by a qualified specialist workshop.
We recommend that you use your authorized
Porsche dealer for carrying out this work.

Maintenance, Car Care
173
Wiper BladesfWhen wiper performance deteriorates, replace
the wipers.
fPlease observe the chapter “CAR CARE IN-
STRUCTIONS” on Page 195.
Caution!
Risk of damage if the wiper arm accidentally
falls back on to the window.
fAlways hold the wiper arm securely when re-
placing the wiper blade.
Risk of damage if wiper blades that are fro-
zen in place are loosened improperly.
fThaw the wiper blades before loosening them. Maintenance note
If the wiper blades rub or squeak, this can be as a
result of the following:
– If the vehicle is washed in an automatic car
wash, wax residues may adhere to the winds-
hield.
These wax residues can be removed by using
window cleaner concentrate.
Please observe the chapter “WASHER FLUID”
on Page 192.
Please contact your authorized Porsche dealer
for further information.
– The wiper blades may be damaged.
fReplace damaged wiper blades as soon as
possible.

174
Maintenance, Car Care
Changing windshield wiper blades
Caution!
Risk of damage.
If a wiper blade is not changed properly, it
can come loose when the car is moving.
fCheck whether the wiper blade is seated
securely.
The wiper blade must engage the wiper arm properly.
1. Apply the handbrake.
2. Switch the wipers off (position 0) and remove
the ignition key.
3. Fold windshield wiper arm away from the
windshield.
A- Passenger’s side, curved wiper blade
B- Driver’s side, wiper blade with spoiler4. Press together the plastic spring of the wiper
blade (right arrow).
Pull wiper blade out of wiper arm.
5. Insert new wiper blade until you feel it engage.
Ensure that the new wiper blade is inserted
into the wiper arm in the same position:
– direction of the spoiler on the driver side,
– curvature on the passenger side.
6. Carefully fold wiper arm back onto the wind-
shield.

Maintenance, Car Care
175
Changing rear window wiper blade
Caution!
Risk of damage.
If a wiper blade is not changed properly, it
can come loose when the car is moving.
fCheck whether the wiper blade is seated
securely.
The wiper blade must engage the wiper arm properly.
1. Apply the handbrake.
2. Switch the rear window wiper off (position 0)
and remove the ignition key.
3. Fold wiper arm away from the rear window.4. Press together the plastic spring of the wiper
blade.
5. Pull wiper blade upwards out of wiper arm.
6. Insert new wiper blade into the wiper arm from
above.
7. Press together the plastic spring of the wiper
blade and engage it in the wiper arm until it
snaps into place.
8. Carefully fold wiper arm back on to the rear
window.

176
Maintenance, Car Care
Coolant Level fPlease observe the chapter “EXERCISE EXTRE-
ME CAUTION WHEN WORKING ON YOUR VE-
HICLE” on Page 172.
The cooling system is filled at the factory with a
permanent coolant.
It provides year-round protection from corrosion
and freezing down to –31°F/–35°C.
Only use antifreeze authorized by Porsche. Checking coolant level The expansion tank for the coolant is located in
the rear luggage compartment under the service
flap.
fCheck the coolant level regularly at the trans-
parent window of the expansion tank.
When the engine is cold and the car is level the flu-
id level must lie between the “Min.” and “Max.”
markings.
Topping off coolant
Warning!
Danger of serious personal injury from scald-
ing. Coolant is hazardous to your health, and
may be fatal if swallowed.
fDo not open the cap of the expansion tank
while the engine is hot.
fAllow the engine to cool down before opening
the cap and protect your hands, arms and face
from any possible escape of hot coolant.
fKeep coolant out of children’s reach.
fAlso, keep coolant away from your pets.
They can be attracted to it should there be a
spill, or to used coolant left in an open contain-
er. Coolant can be deadly to pets if consumed.
Risk of damage from overflowing coolant.
fTake care while topping off coolant not to soil the luggage compartment or items of luggage.
1. Switch engine off and let it cool.
Please observe the chapter “COOLING SYS-
TEM” on Page 86.2. Press catch button on the service flap and
open flap.