2004 PORSCHE CAYENNE ECU

234
Tr a i l e r H i t c h
Towing a trailer
Warning!
Driving with a trailer
fAlways see the permissible towing capacity,
vertical coupling load and rear-axle load.
Please see the chapter “WEIGHTS” on
Page 356.
fWhen connected, the trailer must always be
horizontal behind the towing vehicle. If neces-
sary, use a trailer with an adjustable drawbar.
fWhen the vehicle is driven in the mountains, the
engine output decreases as altitude increases.
The maximum weights stated are the values at
sea level. The total permissable weight of the
car-trailer combination must therefore be re-
duced by 10% for each increment of 3,280 ft.
(1,000 meters) altitude. A fractional increment
counts as the full 3,280 ft. (1,000 meters).
Please take this into consideration when plan-
ning your route.Distributing the load
fDistribute the load in the trailer so that heavy
objects are as close to the axle as possible.
Always safeguard all objects against slipping
and tie them down securely.
fYou should make the best possible use of the
trailer coupling's rated vertical coupling load
when loading the trailer, but never exceed it.
Tire pressure
fSelect the vehicle tire pressure for full load
when towing a trailer.
fPlease see the chapter “TIRE PRESSURES,
COLD (68 °F/20 °C)” on Page 354.
fCheck the tire pressure of the trailer's wheels
according to the manufacturer's instructions.Door mirrors
fIf the width of the trailer obstructs your view of
the traffic behind the trailer, you must have
additional door mirrors fitted.
Headlights, lights
fAlways check the headlight adjustment before
driving with a trailer.
If necessary, correct with the headlight beam
adjustment function.
fCheck whether the plug of the trailer is
plugged into the towing vehicle and whether all
lights function.
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Maintenance and Car Care
261
Wiper BladesMaintenance Notes
Wiper blades that are in perfect condition are vital
for a clear view.
fReplace the wiper blades twice per year
(before and after the cold season) or if wiper
performance deteriorates or the blades are
damaged.
fFor important information on “service topics”:
Please see the chapter “CAR CARE
INSTRUCTIONS” on Page 270.
Caution!
Risk of damage if wiper arm accidentally
falls back onto the windshield.
fAlways hold the wiper arm securely when
replacing the wiper blade.
Risk of damage if wiper blades that are
frozen in place are loosened improperly.
fThaw the wiper blades before loosening them.
Risk of damage.
If the wiper blades are not changed properly,
they can come loose when the car is moving.
fCheck whether the wiper blades are seated
securely.
The wiper blade must be pushed onto the wiper arm up to the stop. fPeriodically clean the wiper blades with
window cleaner, especially after the vehicle
has been washed in a car wash.
We recommend the Porsche window cleaner. If
they are very dirty (e.g. with insect remains),
they can be cleaned with a sponge or cloth.
If the wiper blades rub or squeak, this may be as
a result of the following:
– If the vehicle is washed in an automatic car
wash, wax residues may adhere to the wind-
shield. These wax residues can be removed
only by using window cleaner concentrate.
fPlease see the chapter “WASHER FLUID” on
Page 258.
Please contact your authorized Porsche dealer for
further information.
– The wiper blades may be damaged or worn.
fReplace damaged or worn wiper blades as
soon as possible.
Replacing wiper blades at frontfApply the parking brake.
fSwitch the windshield wipers off (wiper stalk in
position 0).
fSwitch ignition off.
1. Fold windshield wiper arm away from the
windshield (arrow 1).
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Maintenance and Car Care
277
Leather careThe natural surface markings of leather,
e.g. creases, healed scars, insect sting marks,
structural differences and slight variations in
shade and grain add to the attractiveness of the
high-quality natural leather product.
Observe the following care instructions:
Caution!
The leather will be damaged by the use of
unsuitable cleaning and care agents and by
inappropriate treatment.
fDo not use caustic cleaners or hard cleaning
objects!
fPerforated leather must under no circum-stances get wet on its reverse side.
fAll types of leather should be cleaned regularly
to remove fine dust using a soft, damp, white
woollen cloth or a commercially available
microfibre cloth.
fRemove heavy contamination with a leather
cleaner.
Please always follow the instructions for use
given on the containers.
We recommend the Porsche leather care
product.
fOnce cleaned, leather (particularly the heavily
stressed leather seats) must be treated only
with Porsche leather care product.
Carpets and matsfUse only a vacuum cleaner or a medium stiff
brush.
fRemove stains and spots with Porsche stain
remover.
The Porsche range of accessories includes floor-
mats to protect the carpets in summer and winter.
Warning!
Risk of an accident resulting in serious
personal injury or death.
fAlways check the movement of the pedals
before driving and make sure that they are not
obstructed by a floor mat or any other object.
fSecure the floor mat to prevent it from sliding
into positions that could interfere with the safe
operation of your vehicle – do not lay them
loosely in the vehicle.
Your Porsche dealer will be glad to offer you
floor mats of correct size including a securing possibility.
Cleaning airbags covers
Danger!
There is a danger of serious personal injury
or death if the airbag system is impaired by
improper cleaning work.
fDo not make any modifications whatsoever on
individual components such as the padded
covers of the steering wheel, the passenger
side of the dashboard, the front seats, the roof
pillars and the rooflinings.
fLet your authorized Porsche dealer clean these components.
Cleaning fabric liningsFabric linings on pillars, headliner and sun visors,
etc., must be treated only using suitable cleaning
agents or a suitable dry foam and a soft brush.
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294
Minor Repairs Tightening torque
Tightening torque of the wheel bolts and wheel
nuts 118 ftlb. (160 Nm).
Security wheel boltsThe adapter (wrench socket) for the security
wheel bolts is located in the tool box.
To loosen or tighten the wheel bolt with anti-theft
protection, the adapter must be used between the
wheel bolt and the wheel bolt wrench.
fWhen positioning the wrench socket, ensure
that it engages fully in the teeth of the wheel
bolt.
Note on operation
fOn vehicles with 17 mm spacers on the rear
axle, the wheels are secured with steel nuts.
There is no anti-theft protection for the wheel
nuts.
fIf the wheels have to be removed at the work-
shop, please do not forget to hand over the
socket for the security wheel bolts along with
the car key.
Changing Wheels
Warning!
Failure to follow these instructions may result
in serious personal injury or death to you or
to bystanders.
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
motorists.
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
under the jack to ensure that the jack does not
sink into the ground.
fSet the parking brake and block the wheels
opposite the flat tire on the other side of the
vehicle.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 illustra-
ted 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
located in the luggage compartment.
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Minor Repairs
295
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
vehicle. If the jack is accidentally dislodged,
you or bystanders could suffer severe
personal 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.
Flat TireNote
The tools required for changing a wheel (e.g. jack,
wheel bolt wrench, assembly aids, folding
wedges) are only supplied with the vehicle if the
vehicle comes with a collapsible spare wheel or
full-size spare wheel as standard. Your authorized
Porsche dealer will be pleased to advise you.
1. Stop the vehicle as far away from the driving
lane as possible.
The car must be parked on a firm and flat
surface offering adequate grip.
2. Switch on the emergency flashers.
3. Fully apply the parking brake.
4. Shift into 1st gear or move the Tiptronic
selector lever to position P.
5. Straighten the front wheels.
6. Withdraw the ignition key to lock the steering
and prevent the engine from being started.
7. Have any passengers leave the vehicle.
8. Set up a warning triangle at a suitable
distance.
A-WedgesSecuring the vehicle against rollingFor this purpose, use the two folding wedges A
secured next to the tool box.
1. You can remove the wedges after undoing the
Velcro fastening.
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Minor Repairs
299
A- Front jacking points platform lift
B- Front jacking point garage liftPlatform liftfBefore the car is driven on to a lifting platform,
it must be ensured that there is enough space
between the lifting platform and the vehicle.
C- Rear jacking points platform lift
D- Rear jacking point garage liftGarage liftA garage lift may be used only at the illustrated
jacking points.
Lifting at any other place may damage the vehicle
or may result in personal injury.
Lifting the vehicle with a jack
Danger!
Danger of serious personal injury or death.
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 see the chapter “RAISING VEHICLE
WITH THE JACK” on Page 192.
Risk of injury and damage if the vehicle is not
secured.
fSecure the vehicle against rolling.
fPlease see the chapter “SECURING THE VEHICLE AGAINST ROLLING” on Page 295.
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Minor Repairs
321
Battery carefEnsure that battery is securely mounted.
fKeep terminals and connections clean and
properly tightened. Corrosion can be preven-
ted by coating the terminals and connections
with petroleum jelly or silicone spray.
fEnsure that vent caps are securely tightened to
prevent spillage.
Checking the electrolyte fluid level
(only on low-maintenance batteries)
Generally, the electrolyte level must be checked
more often in summer than in the winter, and more
often when driving long distances.
fWhen adding water, use only clean containers.
In no case may alcohol (e.g. window cleaner
residues) be permitted to enter the battery.
fUnscrew and open the filler vent caps of each
cell.
With the car on a level surface, the fluid level
should meet the indicator mark in each cell.
fIf necessary, top up with distilled water. Do not
use acid. Only fill up to the mark, otherwise the
electrolyte will overflow when the battery is
being charged and cause damage.
Winter operationDuring the winter months, battery capacity tends
to decrease as temperatures drop. Additionally,
more power is consumed while starting, and the
headlights, heater, rear window defogger, etc.,
are used more frequently.
Let your Porsche dealer test the battery's capaci-
ty before winter sets in.Vehicle storageIf the car stands for long periods in the garage or
workshop, the doors and lids should be closed.
fRemove the ignition key and, if necessary, dis-
connect the battery.
Notes on operation
fWhen the battery is disconnected, the alarm
system ceases to function.
If the vehicle was locked before the battery
was disconnected, the alarm will be triggered
when the battery is reconnected.
To deactivate the alarm system:
fLock the vehicle and unlock it again.
Alarm system, central locking
The status of the central locking and alarm system
is not changed by disconnecting the battery.Maintenance Notes
Even if you put your vehicle out of operation, the
battery still discharges.
The battery will discharge more quickly if your ve-
hicle is not driven on a daily basis over a distance
of several miles. The more often you drive your ve-
hicle, and the longer the distance driven on each
trip, the more opportunity the vehicle‘s charging
system will have to recharge the batteries.
fTo preserve its efficiency, charge the battery
about every 6 weeks.
fCheck the battery acid level and top off with
distilled water if necessary.
fStore a battery that has been removed in a
dark, cool place, but not subject to freezing.
Replacing the batteryThe service life of the battery is subject to normal
wear; it depends greatly on care, climatic conditi-
ons, and driving conditions (distances, loads).
fOnly use an original Porsche battery, with the
correct part number, as a replacement. Only
this battery meets the specific requirements of
the vehicle.
fPlease observe the disposal instructions for
batteries.
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328
Minor Repairs 6. Pull the headlight forward out of the fender by
approx. 4 inch (10 cm).
7. Press back the release tab of the plug D and
pull plug off.
8. Pull out headlight completely.
A - Cover
C - Socket wrench
D - PlugInstalling headlights1. Insert headlight in the guide rails, connect plug
D and then push the headlight fully into the
fender.
2. Push headlight to the rear and simultaneously
turn socket wrench C in the direction of the
arrow.
The headlight locking device must perceptibly
and audibly engage.
3. Check whether the headlight is seated
securely.4. Remove socket wrench C and replace in tool
kit.
5. Fit cover A and fold it down.
6. Close lid.
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