2009 PORSCHE 911 towing

Table of Contents
7
Speedometer ............................................ 118
Changing over between Miles / Kilometers .. 118
Tachometer ............................................... 119
Turn Signal Indicator Light .......................... 119
High Beam Indicator Light........................... 119
Gear Shift Indicator “A”
(in vehicles with manual transmission).......... 119
Cooling System ......................................... 120
Porsche Doppelkupplung (PDK) ................... 121
Fuel .......................................................... 122
Clock ........................................................ 123
Outside Temperature .................................. 123
Engine Oil Pressure .................................... 124
Check Engine (Emission Control) ................. 125
On-Board Computer (BC) ............................ 126
Warnings on the instrument panel
and the on-board computer......................... 158Shifting Gears................................. 167Manual Transmission, Clutch ....................... 168
Drive-Off Assistant ..................................... 169
Porsche Doppelkupplung (PDK) ................... 170Mobile Roofs .................................. 177 Lifting/Sliding Roof .................................... 178
Convertible Top ......................................... 181
Emergency operation of the convertible top . 183
Windstop................................................... 190
Hardtop .................................................... 194
Targa ........................................................ 200
Roof Transport System............................... 204
Maintenance, Car Care ................... 205Exercise Extreme Caution when Working
on your Vehicle .......................................... 206
Coolant Level............................................. 207
Engine Oil .................................................. 208
Engine Oil Level ......................................... 208
Engine Oil Recommendation........................ 210
Brake Fluid Level........................................ 212
Fuel Economy ............................................ 214
Operating your Porsche in other Countries ... 214
Fuel Recommendations .............................. 216
Portable Fuel Containers............................. 217
Fuel Evaporation Control ............................. 217
Emission Control System ............................ 218
How Emission Control Works ...................... 219
Washer Fluid .............................................. 220
Power Steering .......................................... 221
Air Filter .................................................... 222
Combination Filter ...................................... 222
Fluids/Oils for Manual Transmission
and Porsche Doppelkupplung (PDK) ............. 222
Wiper Blades ............................................. 223
Car Care Instructions.................................. 224Practical Tips, Emergency Service ... 233Exercise Extreme Caution when Working
on your Vehicle .......................................... 234
Tires/Wheels ............................................. 235
Loading Information ................................... 246
Wheel Bolts ............................................... 248
Changing a wheel....................................... 249
Flat Tire..................................................... 251Lifting the Vehicle with a Lifting Platform or
Garage Lift ............................................... 254
Spacers 911 Carrera, 911 Carrera S ......... 255
Electrical System ...................................... 257
Battery ..................................................... 261
Replacing the remote-control battery .......... 266
Emergency Starting with Jumper Cables ..... 267
Bulb chart................................................. 269
Lights, Replacing Bulbs.............................. 269
Headlights ................................................ 270
Number Plate Light.................................... 277
Changing Light-Emitting Diodes and
Long-Life Bulbs ......................................... 277
Adjusting Headlights .................................. 278
Towing ..................................................... 280
Vehicle Identification,
Technical Data ............................... 283Vehicle Identification.................................. 284
Technical Data .......................................... 286
Diagrams ................................................. 299

Operation, Safety
63
Porsche Traction Management
(PTM)With PTM, the engine power is variably distributed
to the front and rear wheels.
Power distribution between the front and rear ax-
les is performed by a map-conrolled multiple-disc
clutch.
Distribution of the engine power also depends on
the difference in wheel speed between the two ax-
les.
The multiple-disc clutch always delivers sufficient
drive power to the front wheels to ensure optimum
propulsion even on an unfavorable road surface.
In combination with the Porsche Stability Manage-
ment (PSM), the PTM ensures optimum handling
and high driving stability.
Warning!
The increased control that is provided should
not induce you to take greater risks with your
safety. The limits dictated by the laws of phy-
sics cannot be overcome, even with PTM.
The risk of accidents due to inappropriate
speed cannot be reduced, even by PTM.
The driver bears the responsibility for all dri-
ving maneuvers.
fAdapt your driving style to the prevailing road
and weather conditions.
fObey all traffic laws.
Dynamometer testing procedure Some U.S. states and Canadian provinces con-
duct emissions inspection/maintenance testing in-
volving the use of two-wheel dynamometer.
A two-wheeled dynamometer is a treadmill type
device upon which a single axle of the car, the dri-
ving axle of the vehicle, rotates to simulate vehicle
operation on the road while the vehicle remains
stationary.
Your vehicle has a full-time four-wheel drive system
which cannot be disabled. Severe damage to the
powertrain can result if tested on a two-wheel dy-
namometer.
Warning!
Risk of severe powertrain damage and a pos-
sible unexpected movement of the vehicle.
fDo not test your vehicle on a two-wheel dyna-
mometer.
fAdvise the emission station of this warning be-fore testing the vehicle.
Brake testsBrake tests must be performed only on plate-type
test stands or roller test stands.
The ignition must be off.
The following limit values must not be exceeded
on roller test stands:
– Testing speed 5 mph (8 km/h)
– Test duration 20 seconds Handbrake tests Handbrake tests on the roller test stand must only
be carried out with the ignition switched off. Balancing wheels on the vehicle During finish balancing of the wheels, the vehicle
must be hoisted and all the wheels able to rotate
freely. Towing fPlease see the chapter “TOWING” on
Page 280.Wheels/TiresThe PTM control unit is adapted to the approved
tire sizes. The use of non-approved tire sizes may
lead to deviations in wheel speeds and it may influ-
ence handling or result in the PTM switching off.

68
Operation, Safety
Sport modeA sportier car set-up is obtained when Sport or
Sport Plus mode is switched on.
PSM interventions are later than in Normal mode;
the vehicle can be maneuverd with greater agility
at its performance limits, without dispensing with
the assistance of PSM in emergency situations.
This helps to achieve optimal lap times, particu-
larly on race circuits and a dry road surface.
– The multifunctional light on the instrument
panel lights up for a lamp check when the
ignition is switched on.
– The light indicates a control operation by
flashing, including when PSM is switched off
(brake control in the event of one-sided wheel
spin).
– In conjunction with a message on the on-board
computer, the light indicates that PSM is
switched off.
An acoustic signal also sounds.
– The light indicates a fault in conjunction with a
message on the on-board computer.
PSM is out of order.fPlease have the fault remedied at an author-
ized Porsche dealer.
fPlease see the chapter “PUTTING VEHICLE
INTO OPERATION” on Page 263.
TowingfPlease see the chapter “TOWING” on
Page 280.Checks on test standsBrake tests
Brake tests must be performed only on plate-type
test stands or roller test stands.
The ignition must be switched off.
The following limit values must not be exceeded
on roller test stands:
– Testing speed 5 mph (8 km/h)
– Test duration 20 seconds
Handbrake tests
Handbrake tests on the roller test stand must be
performed only with the ignition switched off.
PSM multifunctional light

Operation, Safety
95
Luggage Compartment
(Vehicles without Porsche Traction
Management PTM)Access covers A and B
Caution!
Risk of injury or damage.
fDo not store any objects behind the access covers A and B.
E- Adapter for security wheel bolts
F- Tire filling compressor
G- Towing hook
H-Tool kit
I-Tire sealantTool boxOpening
fUnlock turn-locks C.
fOpen tool box and place it on the floor of the
luggage compartment.Closing
fInsert tool box into the guide pegs in the
luggage compartment floor.
fClose tool box and lock the turn-locks C.

96
Operation, Safety
Luggage Compartment
(Vehicles with Porsche Traction
Management PTM)Access cover A
Caution!
Risk of injury or damage.
fDo not store any objects behind the access cover A.
B- Access cover for tire sealant
C- Tire filling compressor
D-Tool kit
E- Towing lug
F- Adapter for security wheel boltsTire sealantThe tire sealant is located behind the access
cover B.
fOpen access cover B using the opening.
ToolsThe tools are located under the floor plate of the
luggage compartment.
fLift the floor plate on the opening and take out.

172
Shifting Gears
Selector lever positionsP – Parking lockfEngage parking lock only when vehicle is
stationary.
If selector lever position P is flashing in the
instrument cluster, the parking lock is not
engaged. The vehicle can roll away.
Engage selector lever position P again by
moving the selector lever out of R.
fEngage parking lock after applying the
handbrake and release it before releasing the
handbrake.
The ignition key can be withdrawn only in
selector lever position P.R – Reverse gearfSelect only if car is stationary and the brake is
applied.N – NeutralSelector lever position N must be selected for
towing or in car washes, for example.
fOnly select the desired position for driving off
(D, M or R) when the engine is idling and the
brake pedal is depressed.
D - Automatic selection modeSelect position D for “normal” driving. The gears
are shifted automatically according to the acceler-
ator position and speed.
Depending on the way the vehicle is driven
(economical, comfortable or sporty driving style)
and on the resistance (e.g. uphill), the gear-
changing points are shifted towards higher or
lower engine-speed ranges.
The accelerator position, driving speed, engine
speed, longitudinal and lateral acceleration and
the road profile all have an influence on the gear-
changing characteristic.
Unwanted upward shifts, e.g. before bends, are
prevented by swiftly releasing the accelerator
pedal.
Depending on lateral acceleration, upward
changes on bends are not made until the engine-
speed limit is reached.
Under braking, and depending on the amount of
deceleration, the PDK transmission changes down
earlier.
For subsequent cornering, the right gear is
engaged when pressure is applied to the brakes
before the bend. The bend is taken in the right
gear, and when you accelerate out of the bend you
do not have to change down.With a sporty driving style, downshifts are already
initiated when the brake pedal is touched lightly.
This further enhances a dynamic driving style.
The PDK transmission temporarily changes to the
sportiest gear-changing map, i.e. to the highest
possible gear-changing points, if the accelerator
pedal is pressed quickly. The transmission accord-
ingly shifts down immediately by one or two gears
(temporary change-down).
The transmission no longer selects 7th gear at
high driving speeds.
Sport mode
(“Sport” and “Sport Plus” modes)
“Sport” mode activated:
The PDK transmission switches to a sporty gear-
changing map and shortens the gear shifting
times.
A sporty driving style is recognised more quickly
and the gear-changing speeds are adapted to
driving performance.
Deceleration downshifts are commenced earlier.
Downshifts are already carried out in the case of
slight decelerations, even at higher engine
speeds.

Shifting Gears
175
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.
There is no automatic upshift at the upper engine
speed limit in selector lever position M. Upshift
suppression can be cancelled by kickdown opera-
tion. 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 as a result of kickdown operation.
fSelect an appropriately low gear on upward
and downward slopes.
This will ensure optimum use of engine power
and engine braking.
In order to shift up automatically at the upper
engine speed limit:
fDepress the accelerator pedal beyond the full-
throttle point (kickdown).Failure of the selector lever display on the
instrument cluster
The warning “Transmission emergency run” is
displayed in red on the on-board computer.
–Effect:
No selector lever position is displayed on the
instrument cluster.
Vehicle can be driven only until it comes to a
stop.
Remedy:
It is not possible to continue driving. Immedi-
ately stop the vehicle in a suitable place. Have
the vehicle towed to an authorized Porsche
dealer.
StoppingfFor a brief stop (e.g. at a traffic light), leave the
selector lever in drive position and hold the
vehicle with the brake pedal.
fDo not hold the car on a slope using the
accelerator. Use the brake pedal or the
handbrake instead.
fBefore leaving the vehicle, always apply the
handbrake and move the selector lever to
position P.ParkingfGo easy on the accelerator!
fWhen parking or manoeuvring in a small
space, control the speed by careful use of the
footbrake.Driving in winterIn wintry road conditions it is advisable to take
steep inclines in manual mode. This prevents gear
changes occurring that could cause wheelspin.Tow-starting, towingfPlease see the chapter “TOWING” on
Page 280.

Practical Tips, Emergency Service
233 Practical Tips, Emergency Service
Exercise Extreme Caution when Working
on your Vehicle ......................................... 234
Tires/Wheels ............................................ 235
Loading Information................................... 246
Wheel Bolts .............................................. 248
Changing a wheel ...................................... 249
Flat Tire .................................................... 251
Lifting the Vehicle with a Lifting Platform or
Garage Lift ............................................... 254
Spacers 911 Carrera, 911 Carrera S ......... 255
Electrical System ...................................... 257
Battery ..................................................... 261
Replacing the remote-control battery .......... 266
Emergency Starting with Jumper Cables ..... 267
Bulb chart................................................. 269
Lights, Replacing Bulbs.............................. 269
Headlights ................................................ 270
Number Plate Light.................................... 277
Changing Light-Emitting Diodes and
Long-Life Bulbs ......................................... 277
Adjusting Headlights .................................. 278
Towing ..................................................... 280