230
Shifting Gear, Traction Systems Lowering the vehicle
1st actuation: Low level
2nd actuation: Loading level
Warning messageVarious messages are indicated on the multi-pur-
pose display of the instrument panel if there is a
system fault or if the compressor switches off due
to overload.fPlease observe the chapter “WARNING LIGHTS
AND WARNING MESSAGES” on Page 106.
fAdapt your driving behavior to the changed
conditions.
fConsult an authorized Porsche dealer in order
to remedy a system fault.
fIf the overload-protection function causes the
compressor to switch off, wait for a time until
it has cooled down. The system will function
again as soon as it has cooled sufficiently.
The warning message appears when the control
system is switched off and when the collapsible
spare wheel is being filled. This does not indicate
a fault.
The warning message will go out once these pro-
cedures have been completed.
Raising vehicle with the jackWhenever it is necessary to jack up the vehicle:
fManually set normal level and then switch off
level control.
Switching off level control
1. Switch ignition on.
2. Push rocker switch forward for 5 to
10 seconds.
A message is shown on the multi-purpose
display of the instrument panel.
The vehicle can now be raised.
Switching level control back on
1. Switch ignition on.
2. Push rocker switch forward for 5 to
10 seconds or
3. Drive forward with the vehicle.
Level control switches on automatically.Transporting the vehicles on car trains,
ferries and car transportersfTie the vehicle down only at its wheels.
Maintenance, Car Care
249
Fuel EconomyFuel economy will vary depending on where,
when and how you drive, optional equipment
installed, and the general condition of your
car.
A car tuned to specifications and correctly
maintained, will help you to achieve optimal
fuel economy.
fHave your vehicle tuned to specifications. Air
cleaner should be dirt free to allow proper en-
gine “breathing“.
Battery should be fully charged.
Wheels should be properly aligned.
Tires should be inflated at correct pressure.
fAlways monitor your fuel consumption.
fDrive smoothly, avoid abrupt changes in speed
as much as possible.
fAvoid jack rabbit starts and sudden stops.
fDo not drive longer than necessary in the lower
gears. Shifting into a higher gear early without
lugging the engine will help save fuel.
fProlonged “warm up“ idling wastes gas. Start
the vehicle just before you are ready to drive.
Accelerate slowly and smoothly.fSwitch off the engine if stationary for longer
periods.
fAny additional weight carried in the vehicle re-
duces fuel economy. Always keep cargo to a
minimum and remove all unnecessary items.
fOrganize your trips to take in several errands
in one trip.
fAll electrical accessories contribute to in-
creased fuel consumption.
fOnly switch on the air conditioning when neces-
sary.
fDo not drive with the Roof Transport System
mounted unless you need it.
The EPA estimated m.p.g. is to be used for
comparison purposes, actual mileage may
be different from the estimated m.p.g., de-
pending on your driving speed, weather con-
ditions and trip length. Your actual highway
mileage will probably be less than the esti-
mated m.p.g.
fPlease observe all local and national speed lim-
its.
Operating Your Porsche in other
CountriesGovernment regulations in the United States and
Canada require that automobiles meet specific
emission regulations and safety standards. There-
fore, cars built for the U.S. and Canada differ from
vehicles sold in other countries.
If you plan to take your Porsche outside the conti-
nental limits of the United States or Canada, there
is the possibility that
– unleaded fuel may not be available;
– unleaded fuel may have a considerably lower
octane rating. Excessive engine knock and se-
rious damage to both engine and catalytic con-
verters could result;
– service may be inadequate due to lack of prop-
er service facilities, tools or diagnostic equip-
ment;
– replacement parts may not be available or very
difficult to get.
Porsche cannot be responsible for the me-
chanical damage that could result because
of inadequate fuel, service or parts availabil-
ity.
If you purchased your Porsche abroad and want to
bring it back home, be sure to find out about ship-
ping and forwarding requirements, as well as cur-
rent import and customs regulations.
Practical Tips, Minor Repairs
279
Snow tiresThe installation of Porsche approved winter tires is
recommended.
Use Porsche approved winter tires for grip on
snow and ice. For optimum performance, stud-
ding can be considered.
Check with your local Motor Vehicle Bureau for
possible restrictions.
Danger!
Risk of loss of control and damage to the
vehicle as well as serious personal injury or
death.
The standard tires profile and rubber mixture
are optimized for wet and dry driving condi-
tions, and may not prove favorable for snow
conditions.
fInstall winter tires before driving in such condi-tions.
Before mounting winter tires, consult with your
Porsche dealer. He has the technical information
necessary to advise you on wheel and tire compat-
ibility.
Snow tires should have the same load capacity as
original equipment tires and should be mounted on
all four wheels.
Winter tires with studs should be run at moderate
speeds when new in order to give the studs time
to settle.
Danger!
Risk of serious personal injury or death.
Driving the vehicle with low tire pressure
increases 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.
Tires with badly worn treads and studs are
very dangerous and could cause accidents
resulting in serious personal injuries or
death.
fMake sure they are replaced immediately.
fDo not exceed the winter tire speed rating.
Snow tires do not have the same degree of trac-
tion on dry, wet or snowfree roads as normal tires.
Furthermore, snow tires wear rapidly under these
conditions.
Winter tires do not fulfill their purpose if the tread
depth is less than 5/32 in. (4 mm).
Comply with all state and local laws govern-
ing snow tire and tread depth requirements.
Danger!
Risk of accident and serious personal injury
or death due to excessive speed.
fAlways check the maximum speed rating on
the tire sidewall on any tire on the vehicle.
fNever exceed the maximum speed rating of the tires.
Wheel change
fWhen wheels are removed, mark the direction
of rotation and position of each wheel.
Example: FR (front right), FL, RR and RL.
fAlways fit the wheels in accordance with the
markings.
286
Practical Tips, Minor Repairs
Changing Wheels
Warning!
Failure to follow these instructions may result
in serious personal injuries to you or to by-
standers.
Before changing the wheel
fIf you have a flat tire, move a safe distance off
the road. Turn the emergency flasher on and
use other warning devices to alert other motor-
ists.
fDo not park your vehicle where it may contact
dry grass, brush or other flammable materials.
The hot parts of the exhaust system could set
such materials on fire, thereby causing both
property damage and severe or fatal physical
injury.
fPassengers must not be in the vehicle when it
is jacked up.
fBefore you change a wheel, be sure the ground
is level and firm. If necessary, use a board un-
der the jack to ensure that the jack does not
sink into the ground.
fSet the parking brake and block the wheels op-
posite the flat tire on the other side of the vehi-
cle.While operating the jack
fThe jack is only to be used for changing a
wheel. Do not use it as a support to work under
the car.
fThe car must be jacked up only at the illustrat-
ed jacking points.Lifting at any other place
may damage the vehicle or may result in per-
sonal injury. Never jack the car up by the body
or the bumpers.
fFor safety reasons do not use tire inflating bot-
tles. Do not use commercially available sealant
bottles.Use only the tire inflating bottle locat-
ed in the luggage compartment.
Sequence of operation
Warning!
The jack must be used only to raise the car
for wheel changing.The jack must never be
used as a support to work underneath the ve-
hicle. If the jack is accidentally dislodged,
you or bystanders could suffer severe per-
sonal injury.
fNever jack up other vehicles or other loads
with the jack.
fAlways place the car on stable supports if you
have to work under it. When working under the
vehicle, always use safety stands specifically designed for this purpose.
fPlease use a suitable knee rest to protect your
clothing against soiling.
290
Practical Tips, Minor Repairs
Lifting the vehicle with a jack
Warning!
Danger of injury. The car may slip off the
jack.
fMake sure that no one is in the vehicle when
jacking up and changing a wheel.
fNever jack up the vehicle when it is parked on
a surface that slopes up, down or to the side.
fUse the jack only to raise the car for wheel
changing.
fAlways place the car on stable supports if work
has to be carried out under the car.
The car jack is not suitable for this.
Danger of injury if the level-control system
operates during the wheel change.
fSet the car to jacking mode before raising the
car.
Please observe the chapter “RAISING VEHICLE
WITH THE JACK” on Page 230.
Risk of injury and damage if the vehicle is not
secured.
fSecure the vehicle against rolling.
fPlease observe the chapter “SECURING THE VEHICLE AGAINST ROLLING” on Page 287.Maintenance note
The jacking point on the vehicle must be free of
dirt.
1. Slightly slacken the wheel bolts of the wheel to
be changed.
2. Only set up the jack at the rear jacking point
designed for the purpose. The jack foot must
be in contact over its whole area and must be
positioned directly below the head piece.
Use a suitable support if necessary.
3. Hold jack still and wind it up until its head en-
ters the jacking point on the vehicle.
Only jack vehicle up until the wheel to be chan-
ged is completely off the ground.
4. After lowering the vehicle, remove the jack.
Front jacking pointJacking point base
fSet up jack only at the points provided A or B.
Practical Tips, Minor Repairs
293
Wheel change1. Remove the top wheel bolt with the wheel bolt
wrench from the tool kit.
Screwing in assembly aid 2. Remove assembly aid from the tool kit and
screw in instead of the wheel bolt.
3. Remove the remaining wheel bolts.
Please observe the chapter “WHEEL BOLTS”
on Page 285.
4. Change wheel.5. Insert wheel bolts and tighten by hand. Re-
move assembly aid and screw in remaining
wheel bolt.
Initially tighten bolts in diagonally opposite se-
quence so that the wheel is centered.
6. Inflate the tire.
Please observe the chapter “TIRE PRESSU-
RES, COLD” on Page 350.
In vehicles with tire pressure monitoring sys-
tem:
Please observe the chapter “TIRE PRESSURE
MENU” on Page 87.
7. Lower car and remove jack.
8. Tighten wheel bolts in diagonally opposite se-
quence.
Maintenance note
fImmediately after changing a wheel, use
a torque wrench to check the prescribed
tightening torque of the wheel bolts
(118 ftlb./160 Nm).
308
Practical Tips, Minor Repairs
Fuse assignment – fuse box in left side of dashboard
No. Designation Rating in A1
Socket for towing attachment
15
2 ParkAssist5
3
Towing attachment control unit
15
4 Telephone/telematics control unit5
5
Towing attachment control unit
15
6 Porsche Stability Management (PSM)30
7
Center differential lock
5
8 Additional high beam20
9
CD changer, DVD navigation
5
10 TV tuner, satellite receiver5
11
Radio
10
12 Radio booster30
13
Seat heating
5
14 Tail light, left15
15
Power window, rear right
25
16 Rear guard lights, luggage compartment lights, entry light, rear lid 10
17
Low beam, right; high beam, right
15
18 Heated rear window30
19
Towing attachment motor
30/25
20 Electric seat height adjustment30
21
Alarm system, spare wheel release
10
360
Index Drinks holder ..................................... 172
,176
Closing rear........................................ 177
Opening front ..................................... 176
opening rear ....................................... 177
Removing insert front .......................... 176
Driving
Load .................................................. 193
Off road ............................................. 220
Sand .................................................. 227
Trailer ................................................ 195
Winter ................................................ 204
Driving downhill .......................................... 223
Driving light assistant
Light switch ........................................ 114
Driving light assistant, automatic.................. 115
Driving performance ................................... 353
Driving program
Low Range indicator light .................... 207
Off road .................. 201
,203
,206
,207
Reduced ............................................ 204
Road ................................ 200
,202
,207
Driving programme
Off road ............................................. 210
Road .................................................. 210
Driving systems for off-road driving .............. 221
Driving with a trailer .................. 160
,194
,352
Drop-center rim .......................................... 282
DVD Player ................................................. 177
EEasy Entry function ....................................... 35
ECON mode ...................................... 130
,135
Button ....................................... 127,131Electrical system ........................................ 302
Emergency operation
Door lock ............................................. 23
Doors................................................... 18
Ignition key ........................................... 18
Sliding/lifting roof................................ 149
Emergency starting ..................................... 323
Emergency unlocking
Filler flap ............................................ 251
Selector lever ..................................... 205
Spare wheel bracket ........................... 301
Emission control ................................. 5
,8,76
Check engine warning light .................... 76
Emission Control System ............................. 254
Engine
Boost pressure ..................................... 75
Cooling system ..................................... 73
Data................................................... 346
Idling .................................................. 199
Starting and stopping ............................ 60
Engine compartment
Cleaning ............................................. 260
Lid ..................................................... 180
Engine drag torque control .......................... 215
Engine Oil
Performance class .............................. 239
Viscosity............................................. 239
Engine oil ................................................... 235
Change .............................................. 238
Level .................................................. 236
Recommendation ................................ 238
Temperature gauge............................... 72
Topping up ......................................... 237Engine oil level ............................................236
Checking ............................................236
Warning ..............................................236
Engine residual heat ...........................130
,136
Entry aid.......................................................35
Switching on and off ..............................35
Exhaust gas
Monitoring ..............................................5
Exit aid .........................................................35
Switching on and off ..............................35
FFabric linings ..............................................264
Filler flap ....................................................250
Release ................................................15
Filling pressure..............................................85
Plate ..................................................345
Reducing ...................................296
,298
Tables ................................................350
Warning light ...........68
,70,87,97,108
Warning message..................................93
Fire extinguisher..........................................171
Floor mats ..................................................263
Fluids and fuels ...........................................351
Fog lights ...................................................114
Folding wedges...........................................287
Footbrake .....................................................63
Warning light .........................................64
Footwell light ..............................................146
Fresh-air intake ...........................................125
Front seat with memory ..........................33,34
Front seats ..........................................32
,172
Adjusting the seats ................................32
Seat position.........................................32