Shifting Gear, Traction Systems
227
Power-Transmission and Running-Gear Control SystemsA complex interconnection of all control systems acting in power transmission and in the running gear has been realised in your Porsche.
All control systems have been linked with the aim of combining the best possible driving performance with maximum safety.
The following systems are involved:
System/designation Scope
PTM
Porsche Traction Management– Full-time all-wheel drive
– Electronically controlled center differential lock
– Automatic brake differential (ABD)
– Traction control system (TCS)
– Reduction gear/Low Range
PTM Plus
Porsche Traction ManagementIn addition to the PTM features, PTM Plus also includes:
– Electronically controlled rear differential lock
– Hydraulically disengageable anti-roll bars
PSM
Porsche Stability Management– Stability management system
– Anti-lock brake system (ABS)
– Traction control system (TCS)
– Automatic brake differential (ABD)
– Engine drag torque control (MSR)
Air suspension
with level control and height adjustment– Fully load bearing air spring struts with integral shock absorbers
– Air supply system with pressure accumulator
PAS M
Porsche Active Suspension Management– Shock absorber system with adaptive, continuous shock absorber control
240
Shifting Gear, Traction Systems
Water crossingfPlease observe the chapter “GROUND CLEA-
RANCE” on Page 375.
Danger!
Danger of drowning if water enters the vehi-
cle. Risk of damage to the engine and acces-
sories if water penetrates.
fBefore driving through water, check the water
depth A, water speed and the condition of the
surface beneath it.
The water must not be deeper than 20 in.
(50 cm). The water must not be deeper than
22 in. (55.5 cm) for vehicles with level control
and height adjustment.
fCheck the door sills and rubber seals before
starting to drive.
fDo not drive through deep or rapidly flowing
water.
Deep or rapidly flowing water, e.g. mountain
streams, can cause the car to deviate from the
intended path.
fAvoid a "bow wave" by driving at an appropriate
speed.
fNever open the doors when driving through wa-
ter.Soiling can impair the braking action.
fCheck and clean the brakes if they have been
soiled.
Danger of steering assistance failing during
a long journey in the water if the drive belt
slips.
fIf the steering assistance fails, more effort will
be required to steer.
Danger of damaging electrical systems
fAvoid driving through salt water.
Notes on operation
fActivate Low Range.
fSwitch the air conditioner off.
fSwitch the headlights off.
244
Shifting Gear, Traction Systems
Air Suspension with Level Control
and Height AdjustmentOn vehicles with air suspension, the driver can set
five different level steps manually.
The preselected level is automatically adjusted to
suit the vehicle speed.
The height of the car is automatically kept
constant when the car is loaded.
Tip on driving
It is not permissible to drive on public roads with
the car in the terrain or special terrain setting.Note on operation
Frequent level changes can cause the compressor
to overheat. In this case, the compressor must
cool for several minutes before the level adjust-
ment is fully functional again.
Normal levelThe ground clearance at normal level is around
8.5 in or 217 mm.Terrain levelThis setting is intended for off-road driving, field
paths and forest paths, etc.
The vehicle is raised by around 1 in or 26 mm.
compared to normal level.
Terrain level can be selected only manually at
speeds below around 50 mph (80 km/h).
The car is automatically lowered to normal level at
speeds exeeding around 50 mph (80 km/h).
The car is automatically raised to terrain level
when Low Range is activated.
Special terrain levelThis setting is intended only for extremely chal-
lenging terrain requiring maximum ground clear-
ance. The vehicle is raised by 2.2 in or 56 mm
compared to normal level.
The warning light in the instrument panel comes
on when the special terrain level has been
reached.
Special terrain level can be selected only at
speeds below around 19 mph (30 km/h).
The car is automatically lowered to terrain level at
speeds exeeding around 19 mph (30 km/h).Low levelThis level is intended for high-speed driving. Above
speeds of around 78 mph (125 km/h), the car is
lowered by around 1 in or 27 mm compared to
normal level.
When the speed drops to below around 25 mph
(40 km/h), the car is automatically raised to nor-
mal level.Special low levelAt extremely high speeds, for example when oper-
ated on a race track, the car is lowered 0.4 in or
11 mm compared to the low level.
250
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 selector 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 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 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. For vehicles with air suspension with
level control and height adjustment switch off
level control. Therefore:
Please observe the chapter “LIFTING THE VE-
HICLE WITH A JACK” on Page 307.
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.
Withdraw ignition keys (switch ignition off in ve-
hicles that have Porsche Entry & Drive).fDo not smoke or allow an open flame around
the battery or fuel.
Keep a fire extinguisher in close reach.
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, 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 appro-
priate regulations.
fSome countries require additional tools and
special spare parts to be carried.
Please make enquiries before driving abroad.
Power measurementsPower measurements on dynamometers are not
approved by Porsche.
284
Practical Tips, Minor Repairs
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 selector 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 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.
For vehicles with air suspension with level con-
trol and height adjustment:
Please observe the chapter “AIR SUSPENSION
WITH LEVEL CONTROL AND HEIGHT ADJUST-
MENT” on Page 244.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 in close reach.
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 appropriate
regulations.
fSome countries require additional tools and
special spare parts to be carried.
Please make enquiries before driving abroad.
Practical Tips, Minor Repairs
359
Height adjustment for low beam/
high beam and additional high beam1. Push down cover in the engine compartment
and remove.
2. Switch ignition on.
3. Switch on low beam and/or high beam.
4. Adjust low beam in direction of the arrow.
Changing Headlights from Left to
Right-Hand TrafficIf you travel to a corresponding country where traf-
fic uses the other side of the road, the headlights
must be partially masked with films when you
cross the border.
fYou can obtain the films and a set of instruc-
tions from an authorized Porsche dealer.
378
Index
IndexAABD ......................................... 227
, 229
, 231
ABS ......................................... 227
, 230
, 233
Off road ............................................. 234
Warning light ...................................... 233
After driving off road................................... 237
Aftermarket Alarms ..................................... 185
Air cleaner.................................................. 261
Air conditioning
Central vents ............................. 145, 151
Cover flap .......................................... 142
Disabling control panel (rear) ............... 148
Display ...................................... 143, 147
Footwell .................................... 145, 151
Four zone ........................................... 147
Fresh-air intake ................................... 141
Mono function ..................................... 144
Rear.......................................... 148, 152
REST mode ............................... 146, 152
Sensors ............................................. 142
Setting air quantity ..................... 144, 150
Setting temperature ................... 144, 149
Side vents ................................. 145, 151
Two zone ........................................... 143
Vents ................................................. 141
Windshield ................................. 145, 151
Air quantity
Setting ...................................... 144, 150
Air suspension ................. 174
, 191
, 227
, 244
Airbag ................................................. 50, 281
Disposal ............................................... 51Function ............................................... 52
Switching off passenger airbag ............ 123
Switching on passenger airbag ............ 123
Unit ...................................................... 62
Warning light......................................... 54
Air-conditioned areas
Rear................................................... 152
Air-conditioning compressor....... 143
, 146
, 151
Alarm button................................................. 18
Alarm system ...................................................
24
, 26, 28, 29, 30, 32, 34, 35, 206
, 322
Alcantara.................................................... 281
All-Season tires ........................................... 368
All-Terrain tires ............................................ 368
All-wheel drive ........................... 128
, 227
, 229
Anti-freeze content ...................................... 256
Anti-lock brake system .............. 227
, 230
, 233
Anti-roll bars
Disengageable .................................... 225
Armrest............................................. 188, 190
Assembly aid ..................................... 310, 319
Assistance when driving downhill .................. 235
Audio
Tips ................................................... 183
AUTO button .................... 143
, 144
, 147
, 149
AUTO LOCK ................................................ 118
AUTO UNLOCK ........................................... 118
Automatic anti-dazzle operation...................... 69
Automatic brake differential ....... 227
, 229
, 231
Automatic circulating-air mode ............ 145, 150
Automatic mode,
air conditioning ......................... 143
, 144
, 149Automatic transmission fluid ........................ 261
BBattery ......................... 70
, 72, 89, 186
, 332
After charging ..................................... 345
Car key .............................................. 346
Care................................................... 332
Charge state....................................... 332
Charging ............................................ 345
Installing ............................................. 342
Putting vehicle into operation ...............333
Removing .................................. 340, 341
Removing/installing .................... 335, 339
Replacing ........................................... 334
Warning light....................................... 125
Winter driving...................................... 333
Before driving off.................................12, 237
Belts ............................................................ 46
Fastening ............................................. 48
Height adjustment ................................. 49
Opening ............................................... 48
Tensioner ............................................. 47
Warning light.................................. 47, 60
Brake ...........................................................75
Booster ................................................ 77
Discs ................................................... 78
Pads .................................................... 78
Warning light......................................... 76
Brake fluid
Changing ............................................ 259
Brake light .................................................. 356
Index
381
Evaporation control ............................. 270
Level gauges ........................................ 86
Recommendations .............................. 269
Fuel containers, portable ........................ 6
, 270
Fuel gauge ................................................... 86
Fuel quality ..................................................... 8
Function keys ............................................... 64
Lighting ................................................ 65
Fuse assignment......................................... 325
Fuses......................................................... 323
GGarage door opener.................................... 178
Allocating ........................................... 179
Changeable code system .................... 179
Deleting ............................................. 180
Fixed code system .............................. 179
Gear display ............................................... 215
Glasses case .............................................. 188
Glove compartment .................................... 189
Gross weight .............................................. 207
Ground clearance .............................. 374
, 375
HHand-held transmitter ......................... 178
, 179
Headlight beam adjustment ................ 123, 132
Headlights ................................ 210
, 279
, 349
Bi-Xenon ............................................. 351
Changing for left-hand traffic ................ 359
Closing the housing lid ........................ 351
Height adjustment ............................... 359
Opening the housing lid ....................... 351
Setting ............................................... 358Washer system ...................................136
Headrest ......................................................40
Installing ...............................................40
Removing .............................................40
Setting .................................................40
Heated rear window .........141
, 142
, 143
, 147
Height adjustment ..............................227, 244
High beam.........................................130, 133
Indicator light .................................80, 82
Switch ................................................133
High Range...............99
, 216
, 218
, 223
, 226
On-road driving program ......................222
High-pressure cleaning units.........................274
Horn ............................................................62
IIdentification number ...................................364
Idling..........................................................215
Ignition lock ..................................................70
Immobilizer...................................................21
Inclination sensor ..............24
, 26, 28, 34, 35
Function indication................................32
Monitored areas ....................................28
Switching off.........................................29
Switching on .........................................29
Switching on, temporarily.......................30
Instrument panel
Lighting ..............................................132
Interior light, front .......................................160
Interior lighting............................................160
Interior mirror ...............................................66
ISOFIX system...............................................60
JJack ................................................. 246
, 299
Jacking point ............................................. 307
Jump lead starting
Leads ................................................ 344
Jumper cables ........................................... 343
KKeys............................................................ 17
Changing the battery .......................... 346
Kickdown................................................... 217LLeather care .............................................. 280
Left-hand traffic.......................................... 359
Level control
..................... 98
, 174
, 191
, 227
, 244
, 301
Loading level.................... 245
, 246
, 375
Low level ........................................... 244
Normal level....................................... 244
Special low level................................. 244
Special terrain level ............................ 244
Switching on and off ........................... 246
Warning light ...................................... 246
License plate light............................. 162, 357
Lid
Engine compartment .......................... 199
Luggage compartment ....................... 194
Seal .................................................. 279
Lifting
Garage lift.......................................... 300
Jack .................................................. 307