traction control PORSCHE PANAMERA 2009 1.G Information Manual

6Break in hints for the first
2,000 miles (3,000 kilometers)The following tips will be helpful in obtaining
optimum performance from your new Porsche.
Despite the most modern, high-precision manufac-
turing methods, the moving parts must still wear
in with each other. This we aring-in occurs mainly in
the first 2,000 miles (3,000 km).Therefore:f Preferably take longer trips.
f Avoid frequent cold starts with short-distance
driving whenever possible.
f Avoid full throttle starts and abrupt stops.
f Do not exceed maximum engine speed of
4,200 rpm (revolutions per minute).
f Do not run a cold engine at high rpm either in
Neutral or in gear.
f Do not let the engine labor, especially when
driving uphill. Shift to the next lower gear in
time (use the most favorable rpm range).
f Never lug the engine in high gear at low
speeds. This rule applies at all times, not just
during the break-in period. f
Do not participate in motor racing events,
sports driving schools, etc. during the first
2,000 miles (3,000 kilometers).
There may be a slight stiffness in the steering or
other controls during the br eak-in period which will
gradually disappear.
Break in brake pads and brake discsNew brake pads and discs ha ve to be ”broken in“,
and therefore only attain optimal friction when the
car has covered several hundred miles or km.
The slightly reduced braking ability must be
compensated for by pressing the brake pedal
harder. This also applies whenever the brake pads
and brake discs are replaced.New tiresNew tires do not have maximum traction. They
tend to be slippery.
f Break in new tires by driving at moderate
speeds during the first 60 to 120 miles (100
to 200 km). Longer braking distances must be
anticipated.
Engine oil and fuel consumptionDuring the break-in peri od oil and fuel consump-
tion may be higher than normal.
f Please see the chapter “ENGINE DATA” on
Page 324.
As always, the rate of oil consumption depends on
the quality and viscosity of oil, the speed at which
the engine is operated, the climate and road
conditions, as well as the amount of dilution and
oxidation of the lubricant.
f Make a habit of checking engine oil with every
refueling, add if necessary.

8
Contents
Check Engine (Emission
Control) .................. 114
Acoustic Signals ......... ................................ 114
Operating the Multi-Function Display in the
Instrument Panel ......... ................................ 115
Vehicle Settings on the Multi-Function
Display........................................... ............ 138
Overview of Warning Messages.................... 152
Driving and Driving Safety ................ 163Ignition Lock, Steering Lock ........................ 164
Starting and Stopping the Engine ................. 167
Auto Start Stop Functi on ............................. 169
Electric Parking Brak e ................................. 171
Brakes .............. ......................... ................ 172
Cruise Control ................................ ............ 176
Adaptive Cruise Contr ol ............................... 178
Car Audio Operation/Ti ps ............................ 189
Porsche Communication Management
(PCM) ............................ ............................ 191
iPod
®, USB and AUX ....... ............................ 192
Voice Control.............. ................................ 192
Porsche Doppelkupplung (PDK) .................... 193
Selector-Lever Positions .................. ............ 195
Porsche Traction Management (PTM) ........... 202
Porsche Stability Management (PSM)............ 202
ABS Brake System (Anti-Lock Brake
System) ......................... ............................ 207
Porsche Active Suspension Management
(PASM)....................................................... 208
Porsche Active Suspension Management
(PASM) with Air Suspension and Level
Control ............. ......................... ................ 209
Porsche Dynamic Chassis Control (PDCC) .... 211
“Sport” and “Sport Plus ” Mode .................... 212 Sports Exhaust System
............................... 214
Retractable Rear Spoi ler .............................. 214
Storage, Luggage Compartment
and Roof Transport System .............. 217Storage........................ .............................. 218
Drinks Holder/Cuphold er ............................. 221
Front Ashtray ................ .............................. 224
Rear Ashtray...................................... ......... 224
Cigarette Lighter....... .................................. 225
Refrigerated box in the re ar of the vehicle..... 226
Folding Rear Seats Forward and Returning
to Upright Position ......................... ............. 226
Luggage Compartment. ............................... 227
Stowing Loads .............. .............................. 228
Luggage Compartment Cover ...................... 229
Fixed Luggage Compartm ent Cover ............. 231
Ski Bag ........................ .............................. 231
Roof Transport System ............................... 232
Loading Information .. .................................. 236Parking .................... ....................... 238ParkAssist ......................................... ......... 239
Rearview Camera ...... .................................. 241
Swivelling Down Mirror Glass as
Parking Aid ............... .................................. 242
Garage Door Opener . .................................. 243Alarm System and Theft
Protection ....................................... 246Alarm System and Passenger
Compartment Monitori ng ............................. 247
Immobilizer............... .................................. 250 Locking the Steering Column .......................250
Theft Protection ..........
................................250
Maintenance and Car Care ............... 251Exercise Extreme Caution when Working
on your vehicle ....... ....................................252
Engine Oil ........................................ ...........254
Checking Engine-Oil Le vel ............................254
Topping Up Engine Oi l ................................ 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 Recommendations ................................268
Fuel Evaporation Control .................. ...........269
Car Care Instructions ...................................269Minor Repairs .................................. 277Exercise Extreme Caution when Working
on your Vehicle ....... ....................................278
Tires and Wheels......... ................................280
Wheel Bolts ............... ................................293
Flat Tire...................... ................................293
Electrical System ........ ................................296

Driving and Driving Safety
163
Driving and Driving Safety
Ignition Lock, Steering
Lock ........................ 164
Starting and Stopping the Engine ................ 167
Auto Start Stop Func tion ............................. 169
Electric Parking Brak e ................................ 171
Brakes ........................ .............................. 172
Cruise Control......... ................................... 176
Adaptive Cruise Contr ol .............................. 178
Car Audio Operation/Ti ps............................ 189
Porsche Communication Management
(PCM) .......................... .............................. 191
iPod
®, USB and AUX ........ .......................... 192
Voice Control ............... .............................. 192
Porsche Doppelkupplung (PDK) ................... 193
Selector-Lever Positi ons ............................. 195
Porsche Traction Management (PTM) ........... 202
Porsche Stability Management (PSM) ........... 202
ABS Brake System (Anti-Lock Brake
System)....................... .............................. 207
Porsche Active Suspension Management
(PASM) ............................................ .......... 208
Porsche Active Suspension Management
(PASM) with Air Suspension and Level
Control ............................................ .......... 209
Porsche Dynamic Chassis Control (PDCC) ... 211
“Sport” and “Sport Plus ” Mode ................... 212
Sports Exhaust Syst em .............................. 214
Retractable Rear Spoiler ............................. 214

Driving and Driving Safety
201
Transmission and Chassis Control SystemsYour Porsche features a complex integrated system made up of all control systems acting in power transmission and in the chassis.
All control systems are networked with the aim of combining the best possible driving performance with maximum safety.
The following systems are invo lved, depending on equipment:
System/designation Scope
PTM
Porsche Traction Management – Active all-wheel drive with electronically
regulated map-controlled multiple-disc clutch
PSM
Porsche Stability Management – Driving stability control
– Anti-lock brake system (ABS)
– Brake system prefilling
– Brake booster (Hydraulic Brake Assist)
– Automatic brake differential (ABD)
– Anti-slip control (ASR)
– Engine drag torque control (MSR)
– HOLD function: standstill management
Air suspension
with level control and height adjustment – Full load-bearing air-spring stru
ts with integrated shock absorbers
– Height adjustment with Low Level setting in “S port Plus” mode and High Level setting for
maneuvering
PAS M
Porsche Active Suspension Management – Shock absorber system with adaptive, continuous shock absorber control
PDCC
Porsche Dynamic Chassis Control – Active chassis control system to stabilise
roll tendency of vehicle body when driving
– Controlled rear differential lock

202
Driving and Driving Safety
Porsche Traction Management
(PTM)Porsche Traction Management is an active all-
wheel control system designed to influence
longitudinal and lateral dynamics. It is closely
linked with the Porsche Stability Management
(PSM) system.
The permanently driven rear axle enhances the
vehicle’s sporty features. Drive power is
distributed fully variably to the front axle,
depending on the driving situation.
In conjunction with PSM, the PTM system ensures
perfect distribution of power among all four
wheels in every driving situation. This improves
traction and driving stabil ity and ensures the same
high level of agility and dynamic response.
Warning!
In spite of the advantages of PTM and four-wheel
drive, it is still the driver’s responsibility to adapt
his driving style and maneuvers in line with road
and weather conditions, as well as the traffic
situation.
The increased safety that is provided should not
induce you to take greate r risks with your safety.
The limits set by the physics of driving cannot be
overcome, even with PTM or four-wheel drive.
Risk of accidents due to inappropriate speed
cannot be reduced by PTM or four-wheel drive. Advantages of PTM
– Clearly perceptible improvement in traction,
driving stability and steering ability of the
vehicle.
– Vehicle is more manageable when driven at its performance limits.
– Improved straight-ahead tracking and greater stability.
– More sporty vehicle setup while making full use of all the advantages of four-wheel drive.
– ASR and ABD further enhance traction for all wheels.
For information on ASR and ABD:
f Please see the chapter “PORSCHE STABILITY
MANAGEMENT (PSM)” on page 202.
Porsche Stability Management
(PSM)PSM is an active control system for stabilisation of
the vehicle during extreme driving maneuvers.
It operates together with the Porsche Traction
Management (PTM) system provided the vehicle is
fitted with the relevant equipment.
PSM makes use of both the ABD and ASR
systems, as well as the known functions of the
anti-lock brake system (ABS) and engine drag
torque control system (MSR).
Warning!
In spite of the advantages of PSM, it is still the
driver’s responsibility to adapt his driving style and
maneuvers in line with road and weather
conditions, as well as the traffic situation.
The increased safety that is provided should not
induce you to take greater risks with your safety.
The limits set by the physics of driving cannot be
overcome, even with PSM.
Risk of accidents due to inappropriate speed
cannot be reduced by PSM.

Driving and Driving Safety
203
Advantages of PSM
– Best possible traction and lane-holding ability
in all driving situations – even on road surfaces
with varying friction.
– The system compensates for undesired vehicle reactions (Ferraria effect) when the
driver releases the accelerator pedal or brakes
on bends. This compensation functions up to
the maximum lateral acceleration.
– PSM actively stabilises the vehicle if necessary during dynamic driving maneuvers (e.g. rapid
steering movements, during lane changes, or
on alternating bends).
– Improved braking stability on bends and on different or varying road surfaces.
– Improved brake function and shorter stopping distance in the event of emergency braking. Readiness for operation
PSM is switched on automatically every time you
start the engine.
Function
Sensors at the wheels, brakes, steering system
and engine continuously measure:
–Speed
– Direction of travel (steering angle)
– Lateral acceleration
– Axial acceleration
– Rate of turn about the vertical axis
PSM uses these values to determine the direction
of travel desired by the driver.
PSM intervenes and corrects the course if the
actual direction of motion deviates from the
desired course (steering-wheel position):
It brakes individual wheels as required.
If necessary, PSM also influences the engine
power or the gear-changing characteristic of
Porsche Doppelkupplung (PDK) in order to
stabilise the vehicle. The events below inform the driver of PSM control
operations and warn him to adapt his driving style
to the road conditions:
– PSM warning light on the instrument panel
flashes.
– Hydraulic noises can be heard.
– The vehicle decelerates and steering-wheel forces are altered as PSM controls the brakes.
– Reduced engine power.
– The brake pedal pulsates and its position is changed during braking.
In order to achieve full vehicle deceleration,
foot pressure must be increased after the
brake pedal has begun vibrating.
Examples of PSM control operations
– If the “front wheels of the vehicle drift” on
a bend, the engine power is reduced and the
rear wheel on the inside of the bend is braked
if necessary.
– If the rear of the vehicle swings out on a bend, the front wheel on the outside of the bend is
braked.

204
Driving and Driving Safety
– Brake system prefilling:
The brake system is prepared for possible
subsequent emergency braking if the
accelerator pedal is released suddenly and
quickly. The brake system is prefilled and the
brake pads are already applied gently to the
brake discs.
– Brake booster (Hydraulic Brake Assist): In the event of an emergency braking operation
where the pedal force is insufficient, a brake
booster provides the braking pressure
necessary for maximum deceleration at all
4wheels.
Combined operation of PSM and PTM
In order to ensure optimum stabilisation of the
vehicle, torque distribution between the front and
rear wheels is adapted and the rear differential
lock is controlled on vehicles with PDCC.
In the event of a PTM fault, PSM cannot be
switched off.
If PSM is switched off, it is switched on again
automatically. Automatic brake differential (ABD)
The ABD system controls the front and rear axles
separately. If one wheel of an axle starts to spin,
it is braked so that the other wheel on the same
axle can be driven.
ABD recognizes different driving states, and it
features control strategies adapted to these
states. In situations in which little propulsive power
is required, such as when the vehicle moves off on
a level gravel surface, traction control already
becomes active at low engine speeds. If a large
amount of propulsive power is required, e.g. when
driving off on an uph
ill slope or for rapid
acceleration, the ABD system is adapted
accordingly.
Anti-slip control (ASR)
The anti-slip control system prevents the wheels
from spinning by adjusting the engine power,
thereby ensuring good lane-holding ability and
stable handling.
Engine drag torque control (MSR)
In conditions of excessive slip, the engine
drag torque control system prevents all driven
wheels from locking up when the vehicle is
overrunning. This is also the case for downshifts
on a slippery road.
Switching off PSMf Press button for at least 1 second.
PSM is switched off after a short delay.
The indicator light on the button and the
PSM OFF warning light on the instrument
panel light up.
The warning “PSM off” appears on the
multi-function display in the instrument panel.

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.

Minor Repairs
281
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specific
government test course. For example, a tire
graded 150 would wear one and a half (1-1/2)
times as well on the government course as a tire
graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart significantly from the
norm due to variations in driving habits, service
practices and differences in road characteristics
and climate.
Traction AA, A, B, C
The traction grades, from highest to lowest, are
AA, A, B, and C and they represent the tire's ability
to stop on wet pavement as measured under
controlled conditions on specified government
test surfaces of asphalt and concrete. A tire
marked C may have poor traction performance.
Warning!
The traction grade assigned to this is based
on braking (straight-ahead) traction tests
and does not include cornering (turned)
traction, acceleration, hydroplaning or peak
traction characteristics. Temperature A, B, C
The temperature grades are A (the highest), B and
C, representing the tire's resistance to the
generation of heat and it
s ability to dissipate heat
when tested under controlled conditions on a
specified indoor laboratory test wheel.
Sustained high temperatures can cause the
material of the tire to de generate and reduce tire
life, and excessive temperature can lead to
sudden tire failure.
The grade C corresponds to a level of
performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety
Standard No. 109.
Grades B and A represent higher levels of
performance on the labora tory test wheel than the
minimum required by law.
Warning!
The temperature grade for this tire is
established for a tire that is properly inflated
and not overloaded. Excessive speed,
underinflation, or excessive loading, either
separately or in combin ation, can cause heat
buildup and possible tire failure, resulting
loss of control, leading to serious personal
injury or death.
Tire pressures
Danger!
Risk of accident.
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
pressure increases rate of wear of the
affected tires and cause damage.
f Always use an accurate tire pressure gage
when checking inflation pressures.
f Do not exceed the maximum tire pressure
listed on the tire sidewall. (Also refer to
”Technical data“).
f Please see the chapter “TIRE PRESSURE
PLATE” on page 283.
f Cold tire inflation pressure means: all tires
must be cold, ambient temperature maximum
68 °F (20 °C), when adjusting the inflation
pressure. Avoid sunlight striking the tires
before measuring cold pressures, since the
pressures would rise from temperature
influence.

Minor Repairs
283
Example of a tire pressure plateTire Pressure plateInformation on the tire pressure plate
A Seating capacityMaximum number of vehicle occupants,
including the driver.
B Vehicle load limit Is the maximum total weight limit specified of
the load (passengers and cargo) for the
vehicle. This is the maximum weight of
passengers and cargo that can be loaded into
the vehicle.
Please see the chapter “LOADING
INFORMATION” on page 236. C Original tire size
Size of tires mounted at the factory.
D Recommended cold tire inflation pressure These values are for cold tires (68 °F/20 °C).
Tire traction
Warning!
When driving on wet or slushy roads, a
wedge of water may bu ild up between the
tires and the road. This phenomenon is
known as “hydroplane” and may cause
partial or complete loss of traction, vehicle
control or stopping ability.
f Reduce speed on wet surfaces to prevent this.
Tire lifeTire life depends on various factors, i.e., road
surfaces, traffic and weather conditions, driving
habits, type of tires and tire care.
f Inspect your tires for wear and damage before
driving off. If you notice uneven or substantial
wear, wheels might need alignment or tires
should be balanced or replaced.Tire wearThe original equipment tires on your Porsche have
built-in tire wear indicators. They are molded into
the bottom of the tread grooves and will appear as
approximately 1/2 in. (12 mm) bands when the
tire tread depth is down to 1/16 of an in (1.6 mm).
When the indicators appear in two or more
adjacent grooves, it is time to replace the tires.
We recommend, however, that you do not let the
tires wear down to this extent.
Worn tires cannot grip the road surface properly
and are even less effective on wet roads.
In the United States, state laws may govern the
minimum tread depth permissible. Follow all such
laws.