Maintenance, Car Care; Exercise Extreme Caution When Working On Your Vehicle; Power Measurements - Porsche 911 Carrera Owner's Manual

Exercise Extreme Caution when
Working on your Vehicle
Danger!
Ignoring the following instructions may cause
serious personal injury or death.
The 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 also applies to
the entire vehicle.
Only work on your vehicle outdoors or in a well
ventilated area.
Ensure that there are no open flames in
the area of your vehicle at any time when
fuel fumes might be present. Be especially
cautious of such devices such as hot water
heaters which ignite a flame intermittently.
Before 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.
Be 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 shift lever is in neutral position or
the selector lever in position P or N.
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Maintenance, Car Care

In particular, be very careful to ensure that
items of clothing (ties, shirt, sleeves etc.),
jewelry, 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 engine-compartment blower
is mounted on the engine-compartment lid.
The engine-compartment blower 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 engine off,
the ignition switched off, and exercise extreme
caution.
Your Porsche is equipped with an electronic
ignition system. When the ignition is on,
high voltage 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.
Always support your car with safety stands if it
is necessary to work under the car.
When 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
cannot be started. Remove the ignition key.
Do not smoke or allow an open flame around
the battery or fuel. Keep a fire extinguisher
close at hand.
Incomplete or improper servicing may cause
problems in the operation of the car. If in
doubt about any servicing, have it done by
your authorized Porsche dealer. Improper
maintenance during the warranty period may
affect your Porsche warranty coverage.
Supplies 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.
Some countries require additional tools and
special spare parts to be carried in your
vehicle. Please make enquiries before driving
abroad.

Power measurements

Power measurements on dynamometers are not
approved by Porsche.