wiper size PORSCHE 944 1987 1.G Owners Manual

ABS Brake System (Antilock brake system)
The ABS system represents a major
contribution to the enhancement of active
safety in your vehicle. This system prevents
the wheels from locking in a panic stop on
almost all road surfaces.
With ABS system in your vehicle, the
following areas are enhanced:
Full steerability , vehicle remains steerable
under all braking forces.
Good directional control , no swerving
caused by locking of wheels under braking
conditions.
Excellent stopping distance , stopping
distances are usually reduced because
controlled braking is maximized.
Prevention of wheel lock up , no brake-
induced sliding and thus no localized tire wear from emergency braking.
The crucial advantage of ABS system over a
conventional brake system is in the area of
maintaining directional control and
maneuverability of the car in emergency
situations, including panic braking in turns.
WARNING:
In spite of the improved handling afforded
by the ABS system, it still remains the
responsibility of the driver to adapt the
driving style to the prevailing road and
weather conditions, as well as, obeying
traffic laws. In no case, should the higher
degree of safety offered by ABS be
regarded as a

justification for taking greater risks. Other vehicles not equipped with the ABS
system may not be able to maintain
control, especially on wet or poor road
surfaces and thus may be more likely to
impact you in the rear. To minimize that r
isk, use your ABS system to increase your ability to maneuver to avoid dangerous
situations and not merely to try to stop in
the shortest distance possible.
Driving with the ABS System
A wheel speed sensor is fitted to each of the four wheels. If wheel slippage of either of the
front wheels or the rear wheels is sensed
during braking, the brake pressure is adjusted
automatically until the wheel no longer slips.
The brake pressure is regulated for each front
wheel individually and for both rear wheels together.
On a road surface which is slippery on only
one side, the rear wheel which is braking on
the slippery surface determines the brake
pressure which will be applied equally to both
rear wheels. This ensures that directional
stability is maintained. However, if braking
force approaches the wheel locking-up point
for all wheels (panic braking) the ABS system
will intervene in a way comparable with rapid rhythmic braking. The proper operation of ABS is perceived by the driver as a pulsating brake pedal in conjunction with audible noise
and perhaps some vibration. The driver is
thereby warned to reduce vehicle speed
appropriate for the prevailing road conditions.

If your ABS system should ever malfunction,
the ABS system is automatically switched off,
but the normal brake system, without ABS,
would remain fully operational. Such a malfunction would be indicated by the illumination of the central warning light, as well as the "ANTILOCK" light on the right hand
side of the instrument cluster.
If the ABS system becomes inoperative,
take your vehicle to your authorized dealer immediately.
Note
The control unit of the ABS brake system is
set for standard tire sizes. If non-standard
tires are fitted, the control unit may
misinterpret the speed of the vehicle, because of the variant data it receives from the sensors on the axles.
If the difference in rolling radius exceeds
approx. 17%, the control unit deactivates the
ABS system and the ABS warning lamp lights up.
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1 Set accelerate
2 Reset
3 Cancel

Automatic Speed Control
The automatic speed control allows you to
maintain a constant cruising speed of 25 mph
(40 km/h) or higher, without actuating the
accelerator pedal. Any manual operation,
such as accelerating, gearshifting or braking
can be done independent of the automatic
speed control. The spring loaded control lever
operating the automatic speed control is
located just below the wiper/ washer lever.
While driving with the automatic speed
control set at speeds above 25 mph (40
km/ h), do not bring shift lever into the
Neutral position as excessive engine rpm
will result.
To operate the automatic speed control Accelerate to the desired cruising speed, push lever toward instrument cluster (arrow 1) and
release. This sets the cruising speed and
stores it in a memory.
After a second or two, automatic speed control will take over and you can remove
your foot from the accelerator pedal. The set
cruising speed will be maintained
automatically.
WARNING
Do not use the cruise control when it may
be unsafe to keep the car at a constant
speed. For example, a constant speed may not be safe in heavy traffic, or on winding
or slippery roads. With the cruise control
system engaged, the engine speed will not
return to idle when removing the foot from
the accelerator pedal.
Please observe all local and national speed limits.

Passing: If you want to drive faster for a brief
moment, for example when passing another
vehicle, actuate the accelerator. When you
take your foot off the accelerator pedal, the
preset speed will automatically be resumed.
Gearshifting: When shifting gears, the
automatic speed control is only disengag
ed as long as the clutch pedal is depressed. The
preset speed will be resumed as soon as you
take your foot off the clutch pedal.
Braking and stopping: Whenever you apply
the brake or come to a stop, the automatic
speed control is disengaged. Move the lever
down (arrow 2), and the preset speed will be
resumed.

Switching system off: To switch off the
automatic speed control, move the lever
toward you (arrow 3). To resume the preset
speed, move the lever down (arrow 2).
To change the preset cruising speed
Increase preset speed:
Accelerate by depressing the accelerator pedal. When the desired speed is reached push lever toward instrument cluster (arrow 1) and take your foot off the accelerator pedal.
Now the new cruising speed is set and stored
in the memory. As an alternative, you can hold the lever in the front position (arrow 1), without depressing the accelerator pedal. The car will
accelerate on its own. When the desired
speed is reached, release the lever.
Decrease preset speed:
Apply the brake, which will disengage the automatic speed control. When the vehicle
has slowed down to the desired speed, push
lever toward instrument cluster (arrow 1) to
set the new cruising speed.
As an alternative, disengage the automatic
speed control by moving the lever toward you
(arrow 3). When the vehicle has slowed down
to the desired speed, push lever toward
instrument cluster (arrow 1) to register the
new cruising speed in the memory.
Note: When driving up a hill, if the engine
power is insufficient in a particular gear, the
speed control will be disengaged
automatically. Shift to a lower gear to avoid
stalling the engine.

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Tar or oil
Do not allow tar or oil to remain on the paint.
Remove as soon as possible with a cloth
soaked with a special paint cleaner. If you do
not have a tar or oil remover, you may
substitute with turpentine. After applying a
cleaning fluid, always wash with a lukewarm
soap water solution and apply a new wax
coat.
Insects
Remove as soon as possible with a lukewarm
soap/water solution or apply insect remover.
Tree sap Remove with a lukewarm soap/water solution. Do not allow tree sap or bird droppings to
harden on the paint.
Windows
Keep silicone sprays off the windshield to
avoid wiper smear in rain.
Generally, highway dust that settles on the
outside of the windshield contains material
worn from tires and oil residues. On the inside surfaces of the windshields, particularly in
strong sunlight, there are build-ups of dust
from the interior decor. These buildups are
reinforced by pollution in the air

brought in with the fresh air supply. Use a
lukewarm soap/water solution or an alcohol
based commercial window cleaning agent for t
he inside and outside. If a chamois is used for polishing the glass, it should exclusively be
used for that purpose.
To assure that windshield washers also
function at freezing temperatures, antifreeze
must be added to the washer fluids reservoirs
beforehand. It is advisable to use window
washer solvent with anti-freeze all year round. Follow directions on the can for the right
amounts to be used. Do not use engine
coolant anti-freeze or any other solution
that can damage the paint.
In vehicles with Sekurif
lex windshields, the plastic coating on the inside of the
windshield must not have gummed labels
put on it or be cleaned using abrasive
agents or dry methods. If very dirty, it can
be cleaned with benzine. The use of
benzine in a confined environment may be
dangerous to your health. Make certain
that the plastic coating is not damaged in
cleaning by hard objects such as jewelry
or wristwatches.
Do not remove ice on the inside of the
windshield by any means except warm air
from the defroster nozzles. Do not use any
deicer sprays, scratching tools, or
scrapers!

A foil base must be applied to the windshield prior to application of any labels or stickers
such as those used for state registration or
inspections. Failure to utilize foil base
between sticker or label and the Sekuriflex
coating will result in damage to the Sekuriflex
coating. Three foil bases were included with
the vehicle and additional foil bases may be
ordered from any Porsche dealer.
Instructions:
1. Clean the windshield in the area for
application.
2.
Cut the base of the foil to the required size.
Round off the edges.
3.
Pull off the protective film.
4. Spray the gummed side of the foil base and the windshield with a soap solution (distilled water and liquid soap or grease-free
detergent in a mixing ratio 10:1).
5.
Apply the foil base to the windshield and spray it once again.
6. Any liquid and bubbles under the foil base must be brushed out using a flexible plastic
scraper.
7.
Dry the windshield using a soft cloth.
8. Install label/sticker on the foil base.
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When removing the label/sticker or the
backing foil, first spray the foil with a soapy
solution (see point 4).
Wiper blades
Always loosen frozen wiper blades from glass as they may tear otherwise.
Remove all wiper blades periodically and
clean them thoroughly with an alcohol base
cleaning solution. Use a sponge or soft cloth
and wipe lengthwise.
Weatherstrips
To seal properly, weatherstrips around hood,
hatch, windows, doors, etc., must be pliable.
Spray with silicone or coat with talcum powder or glycerin to retain flexibility of the rubber and to protect against freezing in the winter.
Light alloy wheels
To preserve the decorative appearance of the
light aluminium castings, some special care is
necessary. Aside from road dirt and salt
sprays, brake metal dust will exert corrosive
effects.
If left on too long, brake metal dust can cause
pitting. Wash the wheels with a sponge or
hose brush every other week.

Roads salts should be removed weekly with
an acid free cleaning solution.
The acid free cleaning solution must not have
a pH value greater than 10 (see explanation),
in case of doubt, it is recommended to check
with the manufacturer of that particular cleaner.
Every three months (after regular cleaning)
the wheels should be coated with petroleum
jelly. Rub it in firmly with a soft cloth. Never use abrasive or metal polishing cleaning
agents.
Explanation of pH value
The pH value is a measurement for the
hydrogen-ion concentration in a liquid. This
value tells if the liquid reaction is sour (acid) o r alkaline (lye solution). At a pH value of 7, the reaction of the liquid is
neutral (that is, chemically clean water), it is
not an acid or alkaline. Acids have a pH value
under 7, the strength of the acid increases
with a lower pH value. Alkaline lies between a pH value of 7 and 14, the strength of the
alkaline increases with higher pH values.

For example: a mineral water mixed with
carbon dioxide has a pH value of 6-6.5,
reaction is also light sour. Battery acid in
comparison has a pH value of 1.
or
the pH value for normal soap solution is 8-9,
but the soap solution for a dishwasher is
approximately 12.5, this would not be suitable
for wheel cleaning.
Your Porsche dealer can advise you which
product to use.
Remember that moisture and road salt on
brakes may affect braking efficiency. Test
the brakes after each car or wheel wash.


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