2009 PORSCHE PANAMERA page 42

284
Minor Repairs
Danger!
Driving on worn tires can result in loss of
control of the vehicle and could cause
serious personal injuries or death.
f Do not drive with worn tires or tires showing
cuts or bruises as they may lead to sudden
deflation and loss of control which could cause severe personal injury.
f If you notice that tires are wearing unevenly,
consult your authorized Porsche dealer.
Uneven wear may not alwa ys be due to improper
wheel alignment. It can be the result of individual
driving habits such as cornering at high speeds. If
the tire pressure is no t checked and adjusted
regularly, abnormal tire wear can also occur.
Tire caref Avoid damaging tires and wheel rims.
f I f y o u m u s t d r i v e o v e r a c u r b o r o t h e r o b s t a c l e ,
drive slowly and at an obtuse angle.
f Check tires for uneven wear and damage
before driving off.
f Remove imbedded material.
f Replace worn or damaged tires immediately.
f Keep oil, fuel, brake fluid, etc. away from tires.
f Replace missing valve stem caps.
f Keep tires inflated correctly.
f Wash tires when washing the vehicle. Also
clean inner side of wheels.
f Do not use abrasive cleaners when washing
the wheels.
f Check wheel rims for corrosion.
f Remove road salt, if driving in winter.
Tire damage, puncturefPlease see the chapter “HIGH-PRESSURE
CLEANING EQUIPMENT” on page 270.
Danger!
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 pres-
sure increases rate of wear of the affected
tires.
f Check tires – including sidewalls – regularly for
foreign bodies, nicks, cuts, cracks and bulges.
f Cross curb edges slowly and at right angles if
possible.
Avoid driving over steep or sharp curbs.
f In cases of doubt, have the wheel (particularly
the inner side) checked by an authorized Porsche dealer.

286
Minor Repairs
Self-adhesive weights must not come into contact
with cleaning agents, since they could drop off.
Uneven tread wear indica
tes wheel imbalance. In
this event, the vehicle should be checked at an
authorized Porsche dealer.
Danger!
If, during a trip, uneven running or vibrations
occur that could be caused by damage to
tires or the car, the speed must be reduced
immediately, but without braking sharply. If
you continue your trip without having the
cause of the fault reme died, you might lose
control of your vehicle which could cause
serious personal injury or death.
f Stop the vehicle and check the tires.
f If no cause for the fault can be found, drive
carefully to the nearest authorized Porsche dealer.
Wheels with Tire Pressure Monitoring
(TPM) sensorsBefore changing wheels, make sure that the
wheels are compatible with your vehicle’s TPM.
fCheck this with your authorized Porsche
dealer.Removing and storing tiresfAfter changing, adjust tire pressure and torque
wheel bolts diagonally.
Please see the chapter “CHANGING A WHEEL”
on page 291.
f Store tires in a co ol and dry place. Rotate
periodically to avoid flat spots.
f Avoid contact with fuel, oil and grease.
Tires must always remain on the same side of
the vehicle.
When wheels are removed, the direction of
rotation and position of each wheel should be
marked. Example
FR (front right), FL, RR and RL.
Wheels must always be fitted in accordance with
their marking.
The perception that tire durability and
performance are not affected by storage and age
is unfounded.
Chemical additives, which make the rubber
elastic, lose their effectiveness over the course of
time and the rubber becomes brittle and cracks.
Therefore, the tires should be inspected from
time to time.
Note
Under no circumstances should tires older than
6 years be used on your Porsche.
The age of the tire can be obtained from the ”DOT“
code number. If, for example, the last three
numbers read 1208, then the tire was produced in
the 12th week of 2008.

288
Minor Repairs
Snow chains
Warning!
Risk of damage to body, axle or brake
components.
f Use only the fine-link snow chains recom-
mended and authorized by Porsche so that
sufficient clearance between the wheel well
and the chain is assured.
f Please see the chapter “WHEELS, TIRES” on
page 325.
f Follow instructions issued by the supplier of the chains.
Fit snow chains only on the rear axle.
f Remove spacers if snow chains are mounted.
f Before fitting chains, remove accumulated ice
and snow from the wheel well.
f Vehicles with snow chains must not be driven
faster than 30 mph (50 km/h) .
Different states and countr ies have varying statu-
tory requirements regarding maximum speed.
f Check with local authorities for possible
restrictions.
f Remove chains as soon as the roads are free
of ice and snow.
Example of InscriptionInscription on radial tireA – Tire size
Example: P 265/40ZR18 (101Y)
–P - The tire is designed for Passenger vehicle.
This information is not included on all tires.
– 265 - Indication of tire width in mm
– 40 - Indication of tire height to tire width ratio
in percent
– ZR - Belt type code letter for radial
– 18 - Indication of rim diameter in inches
– 101 - Load capacity coefficient –
Y - Speed code letter
– XL (Extra Load) - Tire with increased load
rating
B – TIN (Tire Identification Number)
Example: DOT xx xx xxxx xxxx
–DOT The DOT symbol indicates that the tires
comply with the requirements of the
US Department of Transportation and provides
information about:
– first two-digit code means manufacture’s identification mark.

290
Minor Repairs
Jacking point for lifting platform and jack at the frontRaising the vehicle
with a lifting platform, trolley jack
or standard jack fBefore driving the vehicle onto a lifting
platform, make sure that there is sufficient
space between the lifting platform and
the vehicle.
Jacking point for lifting platform and jack at the rear
Caution!
Serious personal injury or death and/or
serious damage to the engine or vehicle may
occur, if you lift the vehicle improperly.
f Never lift the verhicle at any other place than
the jacking points.
f Never lift the vehicle by the engine,
transmission or axles.
f Do not damage any sensitive components in the vecinity of the jacking points. Raising vehicles with a level control system
Switch off the automatic level control system
before driving onto a lifting platform or before
raising the vehicle using a lifting platform, trolley
jack or standard jack.
Switching off level control
The level control system can only be switched off
when the vehicle is stationary. To increase ground
clearance, the vehicle shou
ld be set to High Level
before switching off level control.
f Please see the chapter “PORSCHE ACTIVE
SUSPENSION MANAGEMENT (PASM)” on
page 208.
1. Switch on ignition.
2. Press and hold button (for approx. 10 seconds) until the message “Control off”
appears on the multi-function display.
Switching on level control
1. Lower the vehicle.
2. Switch on ignition.
3. Press and hold button (for approx. 10 seconds) until the message “Control on”
appears on the multi-function display.
Note
Level control is switched on automatically at
speeds of more than 4 mph (7 km/h).

Minor Repairs
291
Changing a wheel
Danger!
Failure to follow these instructions may result
in serious personal inju ry or death to you or
to bystanders.
Before changing the wheel
f If 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
motorists.
f Do not park your vehicl e 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.
f Passengers must not be in the vehicle when it
is jacked up.
f Before you change a wheel, be sure the ground
is level and firm. If necessary, use a board
under the jack to ensure that the jack does not
sink into the ground.
f Set the electric parking brake and block the
wheels opposite the flat tire on the other side
of the vehicle.
While operating the jack
f The jack is only to be used for changing a
wheel. Do not use it as a support to work under
the car. f
The car must be jacked up only at the
illustrated jacking points. Lifting at any other
place may damage the vehicle or may result in
personal injury. Never jack the car up by the
body or the bumpers.
f For safety reasons do not use tire inflating
bottles. Do not use co mmercially available
sealant bottles. Use only the tire inflating bottle
located in the luggage compartment.
Note
The tools required for changing a wheel (e.g. jack,
wheel bolt wrench, assembly aids) are not
supplied as standard with the vehicle. Your
authorized Porsche dealer will be pleased to
advise you.
Sequence of operation Warning!
The jack must be used on ly to raise the car
for wheel changing. The jack must never be
used as a support to work underneath the
vehicle. If the jack is accidentally dislodged,
you or bystanders could suffer severe
personal injury.
f Never jack up other ve hicles or other loads
with the jack.
f Always 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. f
Please use a suitable knee rest to protect your
clothing against soiling.
1. Activate the electric parking brake and shift into 1st gear or move the PDK selector lever
to position P .
Remove the ignition key or control unit on
vehicles with Porsche Entry & Drive.
2. Switch on the emergency flasher if necessary.
3. Secure the vehicle against rolling away, e.g. by means of wedges at the wheels on the
opposite side.
This is particularly important on slopes.
4. Slightly loosen the wheel bolts on the wheel to be changed.
5. Lift the vehicle only at the specified jacking points.
6. Raise the vehicle until the wheel lifts off the ground.
f Please see the chapter “RAISING THE VEHICLE
WITH A LIFTING PLATFORM, TROLLEY JACK
OR STANDARD JACK” on page 290.
7. Remove 1 or 2 wheel bolts (see corresponding figure).

292
Minor Repairs
Screw in one assembly aid on vehicles without PCCB8. Screw in assembly aids instead of wheel bolts.
Caution!
Risk of damage to brake discs.
f Always screw in the assembly aids when changing a wheel.
Screw in two assembly aids on vehicles with PCCB9. Remove the remaining wheel bolts.
10.Take the wheel off and put a new wheel on.
fPlease see the chapter “WHEEL BOLTS” on
page 293.
11.Insert wheel bolts and tighten by hand.
12.Remove assembly aids and screw in remaining wheel bolts.
Initially tighten bolts only slightly in
diagonally opposite sequence so that
the wheel is centerd. 13.Inflate the tire if necessary.
f
Please see the chapter “TIRE PRESSURE FOR
COLD TIRES (68 °F/20 °C)” on page 326.
14.Lower the vehicle fully and remove the jack.
15.Tighten wheel bolts in diagonally opposite sequence.
Immediately after changing a wheel, use
a torque wrench to check the prescribed
tightening torque of the wheel bolts
(160 Nm/118 ftlb.).
Note on operation for vehicles with Tire
Pressure Monitoring
f On vehicles with Tire Pressure Monitoring, the
settings on the multi-function display must be
updated after the wheel change.
f Please see the chapter “TIRE PRESSURE
MONITORING (TPM)” on page 127.

Minor Repairs
295
5. Screw filler hose B onto the filler bottle.The filler bottle is now open.
6. Unscrew valve cap from the tire valve F.
7. Remove valve insert E from the tire valve with
valve turner D.
Keep the valve insert in a clean, dry place.
8. Remove plug C from the filler hose B.
9. Push filler hose onto the tire valve.
10.Hold the filler bottle higher than the level of the
tire valve and squeeze it forcefully until the
bottle is completely emptied into the tire.
11.Pull filler hose off the tire valve.
12.Twist the valve insert firmly into the tire valve using the valve turner.
13.Connect the compressor to a vehicle plug socket and inflate the tire to at least 37 psi
(2.5 bar).
If this tire pressure cannot be reached, the tire
is too severely damaged. You must not
continue driving with this tire.
14.Screw valve cap onto the tire valve. 15.After driving for approx. 10 minutes, check the
tire pressure.
If the tire pressure is less than 22 psi (1.5 bar),
do not continue driving.
If a value of more than 22 psi (1.5 bar) is
indicated, correct the pressure to the
prescribed value.
f Please see the chapter “TIRE PRESSURE FOR
COLD TIRES (68 °F/20 °C)” on page 326.
16.Please contact a qualified specialist workshop. We recommend that you have an authorized
Porsche dealer to do this work as they have
trained workshop personnel and the necessary
parts and tools.
f Please also make sure to follow the separate
instructions for use for the tire sealant.
Note on operation for vehicles with Tire
Pressure Monitoring
f The settings for Tire Pressure Monitoring must
be updated on the multi-function display after
filling the tire with sealant.
f Please see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 152. Care instructions
After drying, any sealan
t that emerges can be
peeled off like a film.
Warning!
Risk of accidents, resulting in serious
personal injury or death.
f Have the tire replaced by a specialist
workshop as soon as possible.
Inform the specialist workshop that the tire
contains sealant.
f Avoid hard acceleration and high cornering
speeds.
f Observe the maximum speed of 50 mph
(80 km/h).
f Always observe the safety and operating
instructions, which can be found in the
separate operating instructions for the sealant and on the compressor.

296
Minor Repairs
Electrical SystemIn order to avoid damage and faults in electrical or
electronic systems, electrical accessories should
be installed at a qualified specialist workshop. We
recommend that you have an authorized Porsche
dealer to do this work, as they have the trained
workshop personnel and the necessary parts and
tools for this type of work.
fUse only accessories approved by Porsche.
Warning!
Risk of short circuit and fire, resulting in
serious personal injury or death.
Replacing fuses or relays with the engine
running or the ignition on could cause
electrical shock.
f Disconnect the negative terminal on
the battery during all work on the
electrical system.
f Please see the chapter “BATTERY” on page 303.
RelaysRelays should be checked or changed only at an
authorised workshop.
Plug socket in glove compartmentSocketsElectrical accessories can be connected to the
12 V sockets.
You will find sockets in the glove box, in the front
and rear center consoles and in the luggage
compartment, depending on vehicle equipment.