Model Year
1987
Contents
From
the “Porsche 928 S4 Owner’s Manual”, available from 928 Specialists.
928 S4 page
John Pirtle
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Exercise
Extreme Caution when Working under the Engine Hood
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 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 gasoline
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 compartment, turn the engine off and let it cool down
sufficiently. Hot engine
compartment components can burn skin on contact.
- Even after the engine
has stopped, the radiator fan may continue running until temperature of
the coolant has dropped to a certain level. Therefore, never touch the fan blades as they will
rotate spontaneously when the thermostat turns the fan on, even with
ignition off.
- Be alert and cautious
around engine at all times while the engine is running.
- If work has to be
done with the engine running, always set the parking brake, and make
sure the shift lever is in either Neutral or Park.
- Exercise extreme
caution to prevent neckties, jewelry or long hair from getting caught in
the fan blades, the drive belts, or any other moving engine parts.
- Your Porsche is
equipped with a transistorized ignition system with breakerless
distributor. 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 underneath the
car. The jack supplied with
the car is not adequate for this purpose.
- When working
underneath the car without safety stands but with the wheels on the
ground, make sure the car is on level ground, that 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 gasoline.
- Keep a fire
extinguisher in close reach.
- 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 or any other properly
equipped and qualified workshop.
- Improper maintenance
during the warranty period may affect your warranty coverage.
Tool kit
The
tool kit is a lift-out tray fitted into the rear cross wall of the car. To remove or replace the tray, turn
both holding knobs 90°.
The
tool kit contains tools needed for minor emergency road side repairs or
adjustments.
Regulations
in some countries require additional tools. Details should be obtained before leaving for a foreign
country.
Car jack
The
car jack is located underneath the luggage compartment, together with the
collapsible spare tire. The tire
is covered by a lid with a quick release catch.
WARNING
- Use the jack only for
changing a wheel. Never
jack up other vehicles or other loads with it.
- Follow all warnings
and instructions found in this manual for changing a tire.
- The jack must never
by used as a support to work underneath the vehicle. If the jack is accidentally
dislodged, you or bystanders could be seriously injured. When working under the vehicle,
always use safety stands specifically designed for this purpose.
Engine
oil
It
is normal for your engine to consume oil. The rate of oil consumption depends on the quality and
viscosity of oil, the speed at which the engine is operated, the climate, road
conditions as well as the amount of dilution and oxidation of the lubricant.
Because
of these variables, no standard rate of oil consumption can be established,
but drivers should expect an increased oil consumption at high speeds and
when the engine is new.
- The engine in your
vehicle depends on oil to lubricate and cool all of its moving
parts. Therefore, the
engine oil should be checked regularly and kept at the required level.
- Make it a habit to
have the engine oil level checked with every fuel filling.
- Lack of sufficient
engine oil may lead to severe engine damage.
- The oil pressure
warning light is not an oil level indicator.
Checking oil level
To
get a true reading, the car should be on level ground. After turning off the engine, wait a
few minutes for the oil to return to the oil sump.
- Pull out dipstick and
wipe it dry with a clean cloth or paper towel.
- Reinsert dipstick;
push it in all the way down for an accurate reading.
- Pull dipstick out
again. The oil level is
correct if it is between the “max” and “min” marks on the dipstick.
- If oil level is below
“min” mark, or not showing on dipstick, add oil immediately.
The
difference between the two marks is about 1.6 U.S. qt. or 1.5 liter.
Should the engine oil level be too low, the central
warning light and the engine oil level warning light will flash as soon as
the ignition is turned on (see “Central
warning light system”). Do not
start the engine but add oil immediately or contact your Porsche dealer.
See
“Cautions”
Adding engine oil
Only
add the amount of oil that is needed.
The correct oil grade and viscosity recommendation is given under “Engine Oils”.
- Remove oil filler
cap.
- Top up with quality
oil labeled “API Service SF or SE”.
- Check oil level with
the dipstick – upper mark should not be exceeded.
- Replace cap and
tighten.
WARNING
The
oil filler cap and dipstick must be secure to avoid oil spills and resulting
fire hazard.
Changing oil and filter
High
quality multi-grade oils are suitable for all year round driving. Seasonal oil changes are therefore
not necessary. Only if multi-grade
oils are not readily available, a single-grade oil of the correct viscosity
can be used. Specifications of
the various oils to be used are detailed under “Filling
Capacities and Engine Oil”. The
use of oil additives is not recommended by Porsche.
WARNING
- When removing oil
drain plug with your fingers, keep your arms as high as possible. This will prevent hot oil from
running down your arm. Wear
eye protection.
- Always use a new
gasket when reinstalling the plug.
Do not overtighten the plug.
Before changing the engine oil yourself, make sure that
the disposal of the engine oil and the oil filter as special wastes is
carried out in the proper manner.
Do not dump it on the ground, into open streams or down sewage
drains. Your zoning regulations
or environmental rules will tell you how you can dispose of it. Should the disposal of old engine oil
present a problem, we suggest that you have your oil changed at your dealer
or at a service station.
Oil
change intervals specified in the Warranty & Maintenance booklet
accompanying the vehicle apply to normal operating conditions and must be
adhered to, including intervals for oil filter change.
If
you drive mostly short distances, or if you operate the vehicle in dusty
areas, or under predominantly stop-an-go traffic conditions, or when
temperatures remain below freezing for extended periods, the engine oil
should be changed more frequently.
Changing engine oil
With
the engine at operating temperature and ignition off.
Remove
the engine guard before working at the bottom of the engine.
- Loosen and remove oil
filler cap.
- Loosen oil drain plug
on oil pan and allow oil to drain completely.
- Loosen oil filter
element with appropriate wrench and remove.
- Lightly coat new
filter seal with oil.
- Screw on new filter
element until seal just contacts the crankcase. Only handtighten according to
filter manufacturer’s instructions on container or filter element.
- Clean oil drain plug
and replace, using a new gasket.
Do not overtighten the plug.
- Fill the crankcase
with the required amount of engine oil labeled “API Service SF or SE”
(see “Filling Capacities”). Do not overfill.
- Check the oil level
dipstick. Top up if necessary. Reinstall oil filler cap and
tighten securely.
- Run engine at various
speeds for 3-5 minutes and check for leaks.
See “Cautions”.
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