Light PORSCHE 944 1987 1.G Owner's Guide

Changing Engine 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, can
be carried out in the proper manner. Under absolutely no circumstance should used
oil find its way into the sewage system,
soil, rivers, ponds, or other
environmentally damaging areas. If there is no possibility of disposing of used oil in the proper manner
(when in doubt, consult local authorities),
please have the oil changed by your dealer or 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-and-go traffic conditions,
or when temperatures remain below freezing
for extended periods, the engine oil should be
changed more frequently.
When chang
ing the engine oil and the oil filter, the splash shield under the car has to be
removed first.
Drain the oil when the engine is still warm.
71

The oil filter should be changed at the inter-
vals listed in your Maintenance Schedule.
1. Unscrew the oil drain plug (arrow), remove the oil filler cap and allow oil to drain
completely.
2.
Loosen oil filter element with appropriate wrench and remove.
3. Lightly coat new filter seal with engine oil.
4. Screw on filter by hand until gasket
contacts, tighten by one further turn and
finally recheck tightness of filter with the oil
filter wrench.
Specified tightening torque:
20 Nm (14 ftlb).
5.
Clean oil drain plug. Always use a new
gasket when reinstalling the plug. Do not
overtighten the plug. Correct tightening
torque is 43 ft. Ib. or 60 Nm.
6.
Fill the crankcase with the required amount of engine oil labeled "API Service SE or SF" (see "Filling Capacities"). Do not overfill.
7. Check oil level with dipstick. Top up if necessary. Reinstall oil filler cap and tighten securely.
8. Run the engine at various speeds for 3-5
minutes and check for leaks.
See Exercise Extreme Caution


72

Power Assisted Steering
The hydraulic assistance system allows
effortless steering under all driving conditions.
Slight hissing or squeaking sounds during
sharp turns (turning steering wheel from lock
to lock) are normal and do not indicate a
defective steering mechanism.
If the engine is not running, po
wer assisted steering is no longer effective. You can
continue to steer the car but more effort
will be required to turn the steering wheel.

Checking the fluid level
The hydraulic fluid level should be checked at
regular intervals. The fluid reservoir is
mounted on the right wheel housing in the
engine compartment.
1.
Unscrew cap from reservoir and wipe
dipstick with a lint free cloth.
2.
Let engine run at idle speed. Reinstall cap
and unscrew again. The fluid level should
be between the upper and lower mark on
the dipstick.
If necessary, top up with ATF-Dextron®.
3. Reinstall cap and handtighten securely.
73

Cooling System
Only use additives recommended for
aluminium engines and radiators. Your
Porsche dealer will be able to advise you.
For year round driving, phosphate-free
antifreeze is added at the factory for
temperatures down to:
-31° F / -35° C
Because of its anti-corrosion properties,
antifreeze should also remain in the cooling
system for summer operation. Cooling system capacity and specified antifreeze and water
ratios are listed under "Filling capacities".
Use any quality phosphate-free anti-freeze
containing ethylene glycol, available at your
Porsche dealer. Anti-freeze other than
specified by Porsche for aluminium engi-
nes and radiators may cause corrosion of
the cooling system, leading to engine
overheating and damage.

Only
for topping up coolant, a small amount of anti-freeze containing ethylene glycol and
phosphates may be used if recommended
anti-freeze is not available.
The anti-corrosion properties and the
antifreeze consistency will diminish gradually.
We recommend renewing the coolant mixture
at least every 2 years.
WARNING
The radiator fan is electrically driven. It is
switched on automatically by a thermostat
when the coolant reaches 198°F / 92°C.
Even when the engine is turned off, the fan will continue running, until the coolant
temperature has dropped to 189°F / 87°C
and until the engine itself has cooled down sufficiently.
Checking coolant level in expansion tank
A correctly functioning cooling system requires only minor care. The coolant level
should be checked from time to time, and
always before going on a longer trip.
The
expansion tank with filler cap opening is
located in the engine compartment (see
illustration). Since the expansion tank is
transparent, the coolant level can be checked
visually without removing the filler cap.

74

Brake Fluid Reservoir


The brake fluid reservoir is in the engine
compartment. The reservoir has two
chambers, the front chamber for one brake
circuit and the rear chamber for the second
brake circuit and the hydraulic clutch.
The fluid level should be checked regularly. If
the level drops below the "min" mark on the
transparent reservoir, the cause should be
located and corrected by your dealer.
To add brake fluid , unscrew the cap. The
vent bore in the cap should be kept clean and
open.


944 / 944 S WARNING

Every 2 years the brake fluid has to be replaced. See your Warranty &
Maintenance booklet.
If brake fluid must be added to the reservoir, use only new and unused DOT
3 or DOT 4 brake fluid, that meets SAE
specification J1703 and conforms to
Motor Vehicle Safety Standard 116.
Do not use any other brake fluid or brake fluids that have absorbed moisture from
the open air, or brake fluid that is dirty. It
may cause premature wear or unreliable
braking action.


Do not add or mix DOT 5 silicone type brake fluid with the brake fluid in your
vehicle as severe component corrosion
may result. Such corrosion could lead to
brake system failure.
The brake warning light does not indicate brake fluid level. Check fluid level
between regular maintenance services.
Brake fluid is poisonous. Brake fluid is also harmful to the paint of your vehicle.
Checking Brake Pads
Brake pad wear will mainly depend upon the
degree of usage, and the type of driving you
do.
Thickness of the pads should be checked
during regular maintenance or whenever the
wheels are taken off (visual check). The brake pads must be thick enough between the brake pad plate and the cross spring to allow a
reserve for further wear (see illustration).
79

944 Turbo

944

944 Turbo
The permissible wear limit has been reached
once the brake pad plate comes to rest
against the cross spring (brake pad thickness
approx. 0.08 in or 2 mm).
We also suggest that the condition of the
brake pads be checked prior to going on long
trips. Air Filter
A dirty air cleaner not only reduces engine performance, but can lead to premature
engine wear. If driving is mostly done in areas
where the air is very dusty, the air cleaner must be checked and cleaned frequently,
perhaps daily.
The paper filter element must never be
cleaned or soaked with gasoline, cleaning
solvents or oil.
To clean or replace
the filter element
944 / 944 Turbo

1. Loosen hose clamp at filter housing cover (arrow) and pull off hose.
2.
Loosen mounting screws with screw driver
and lift up filter housing cover. On the 944
Turbo, also remove the air intake funnel.
3.
Remove filter element and clean inside of
housing with a slightly oiled, lint-free cloth.
4.
Replace filter element or shake out dirt to
clean.
80

944


5. Press together the housing cover with the air intake funnel (944 Turbo) and carefully
place in position. Tighten fastening screws,
connect hose and screw down hose clamp.

944 S
1. Unscrew the retaining screws and remove
the filter cover.
2.
Remove the filter element.
3. Clean the inside of the filter housing with a
lightly oiled lint-free cloth.
4.
Fit a replacement filter element. Carefully
place the housing cover in position and
tighten the retaining screws.

Reservoir for Windshield and Headlight
Washer System
The transparent reservoir is in the engine
compartment. As clear water is usually
inadequate for cleaning windshield or
headlights, add a cleaning solution, such as
windshield washer solvent and antifreeze offered by your dealer. To assure that the
system also functions at freezing
temperatures, antifreeze must be added to the water beforehand. Follow the instructions on the can for the right amount to be used (also
see "Filling Capacities"). Do not use engine
coolant anti-freeze or any other solution
that can damage the car paint.
81

Tires/Wheels
The original equipment tires and wheel rims
on your Porsche comply with all applicable
Federal Motor Vehicle Safety Standards.
For your driving safety remember the
following:
Wheel rims and wheel bolts are matched to
fit your Porsche.
If you intend to use other than original equipment wheels, be sure that they conform to Porsche specifications for your model. The use of wheel rims and wheel bolts that
do not meet specifications of the original
factory installed equipment will affect the safe operation of your vehicle. Before you plan on exchanging wheels, or winter tires already mounted on wheel rims, consult your Porsche dealer. He has the
technical information necessary to advise
you which wheel rims and wheel bolts are
compatible with the original factory
installations.
Tire pressures
WARNING
Incorrect tire pressures cause increased
tire wear and adversely affect road holding of the vehicle, leading to loss of control.
Always use an accurate tire pressure
gauge when checking inflation pressures.
Do not exceed the maximum tire inflation
pressure listed on the tire sidewall. (Also
refer to "Technical data"). Cold tire infla-

tion pressure means: when a car has not been driven for at least 3 hours or less
than 1 mile. Never let any air out of warm
tires to meet cold tire pressure
specifications.
Tire traction
WARNING
When driving on wet or slushy roads, a
wedge of water may build up between the
tires and the road. This phenomenon is
known as aquaplaning and may cause
partial or com
plete loss of traction, vehicle control or stopping ability. Reduce speed
on wet surface.
Tire Life
Tire life depends on various factors, i.e.,
roads, traffic and weather conditions, driving
habits, type of tires and tire care.
Inspect your tires at least
every 2.000 miles or 3.000 km for wear and damage. If you notice
uneven or substantial wear, wheels might
need alignment or tires should be balanced or
replaced.
Tires must always remain on same side of
vehicle.
After changing, adjust tire pressure and torque wheel nuts diagonally to 94 ft Ibs (130 Nm) (see "Changing wheels").
The supposition that tire durability and
performance are immune to the effects of
storage and age is unfounded. Chemical
additives, which make the rubber elastic, lose
their effectiveness in the course of time and
the rubber becomes brittle and cracks.

Therefore, the tires, especially the collapsible
spare tire, should from time to time undergo a
visual check. To accomplish this,
pump up the collapsible spare tire.
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 125, then the tire was produced in the 12th week of 1985.
Tire wear
The original equipment tires on your Porsche
have built-
in wear indicators. They are molded into the bottom of the tread grooves and will
appear as approximately 1/2 in (12 mm)
bands when the tire tread depth is down to
1/2 of an in (1.6 mm).
When the indicators appear in two or more
adjacent grooves, it is time to replace the
tires. We recommend, however, that you do
not let the tires wear down to this extent. Worn tires cannot grip the road surface properly,
and are even less effective on wet roads.
In the United States, state laws may govern
the minimum tread depth permissible. Follow
all such laws.
WARNING
Do not drive with worn tires or tires
showing cuts or bruises as they may lead
to sudden deflation.
If you notice that tires are wearing unevenly,
consult your Porsche dealer. Uneven wear

82

may not always 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 not checked and adjusted regularly, abnormal tire wear can
also occur.
Tire care
WARNING
Avoid damaging tires and wheel rims. If you must drive over a curb or other obstacle,
drive slowly and at an obtuse angle.
Frequently check tires for uneven wear and
damage.
Remove imbedded material. Replace worn or damaged tires immediately. Replace missing valve dust caps. Keep oil, fuel, brake fluid, etc. away from
tires.
Keep tires inflated correctly.

Tire replacement
In the interest of maximum safety and best
all-around car handling, always buy
replacement tires that have the same
specifications with regard to tire size,
design, load carrying capacity, tread
pattern, tread depth etc. This also applies
to Porsche recommended alternate
replacement tires. If you do not use a
Porsche recommended replacement tire,
make sure that you purchase your new
tires from a reputable

tire specially dealer and that the dealer complies with all manufacturers warnings
for those tires.
In case of tire damage where it is uncertain
whether there is a break in the ply with all its consequences or, tire damage caused by
thermal or mechanical overloading due to a
loss of pressure or any other prior damage,
we recommend that the tire be replaced for safety reasons.
If one faulty tire on an axle is replaced it
should be noted that the difference in tread
depth on one axle must not be more than
30%.
Tire specifications are imprinted on the
sidewall of the tires. If in doubt, check with
your Porsche dealer.
When replacing tubeless tires, always install
new valve stems. When replacing tires
requiring an inner tube, always install new
tubes.
New tires do not possess maximum
traction. They tend to be slippery. Break
new tires in by driving at moderate speed
for the first 60-120 miles or 100-200
kilometers.
Wheel balancing
A wheel should always be balanced after a tire repair. Even with regular use a wheel can
get out of balance, and should therefore be
balanced from time to time. Unbalanced
wheels may affect car handling and tire life.
When balancing light alloy wheels, use only
adhesive balancing weights supplied through
the Porsche parts service.

Wheels
If you intend to use other than original
equipment wheels, be sure that they conform
to Porsche specifications for your model.
Check with your Porsche dealer regarding the
correct wheel specifications for type and
model year.
Removing and storing tires
The driving direction should be clearly marked on all tires before removing them for storage,
to make sure they are mounted and run in the
same direction as before. Store tires in a cool
and dry place. Tires without rims upright!
Avoid contact with oil, grease or gasoline. When remounting, put tires with the most
tread depth at the front.
Snow tires
For a better grip on snow and ice use radial M + S tires or snow tires with studs. Check with
your local Motor Vehicle Bureau for possible
restrictions.
Radial ply M+S tires should be inflated with
the same cold tire inflation pressures required
for the regular radial ply tires. However, do not exceed the maximum tire inflation pressure
listed on the tire sidewall.
Snow tires should have the same load
capacity as original equipment tires and
should be mounted on all four wheels. Snow
tires with studs should be run at moderate
speeds when new in order to give the studs
time to settle.

83

WARNING
Tires with badly worn treads and studs are
very dangerous. Make sure they are replaced
immediately.
Do not drive a vehicle equipped with snow
tires at prolonged high speed. Snow tires do
not have the same degree of traction on dry,
wet or snow free roads as a normal tire. Furthermore, snow tires wear rapidly under
these conditions.
Snow tires do not fulfill their purpose if the
tread depth is less than 5/32 in. / 4 mm.
Comply with all state and local laws
governing snow tire and tread depth
requirements.
Snow chains Should snow chains be necessary, they
must be mounted on the drive wheels
only.

Check with local authorities for possible
restrictions.
Use only Porsche-approved snow chains with
fine pitch links, so that enough
space remains between the chains and the inside of the wheel arches.
Drive wheels must rotate freely with chains
mounted to prevent damage to body, axle or
brake components. Follow instructions issued
by the supplier of the chains. Remove chains
as soon as roads are free of ice and snow.
New Tire Identifications
The European tire manufacturers have
changed their tire identification system for SR
and HR-tires pertaining to maximum
permissible speed and maximum load carrying capacity for belted tires. The following is an
example only.
During the transition period some tires might
show both old and new identification codes,
such as: 215/60 SR 15 M+S 80 Q. In this
instance, the new codes apply.
The identification codes for VR tires
remain unchanged; for example: 205/55 VR
16. (V = maximum permissible speed for radial tires, i.e. over 130 mph or 210 km/h).


84

Collapsible Spare Tire
The spare tire is stored underneath the
luggage compartment cover.
Due to tread and space saver design features
of the collapsible tire, car handling may be
affected.
Therefore, do not drive more than 50 mph
(80 km/h) when using the collapsible spare tire. It is for emergency use and short
distances only. Remount the original road
tire as soon as possible.
Inflating the collapsible tire WARNING

Do not overinflate your spare tire.
Inflate the collapsible tire with the electric air
compressor that comes with your Porsche. Do not use other equipment!
1. Mount spare wheel before inflating the tire.The wheel nuts for the light alloy wheels of the vehicle can be used to mount the spare wheel. This applies to emergency use and
short distances only.
2.
Attach hose to tire valve. Insert plug of electric cord into cigarette lighter socket.
3. The required tire pressure is 36 psi or 2.5 bar/atm (front or rear). Check
pressure with tire pressure gauge.
4.
Disconnect hose and electric cord and store air compressor.
5. Have flat road tire repaired and remounted
on car at next service stop. Remember, the collapsible tire is for emergency use and short distances only.
When the air is released from the collapsible
tire, it will return to its original shape after
cooling down for several hours. Store
collapsible tire in luggage compartment.
The collapsible spare tire cannot be
repaired or mounted on the rims with
standard workshop equipment. Repair and
remounting must only be done by the tire
manufacturer.

Tire tread depth As required by law, the tread depth of the collapsible tire is the same as that of the
original equipment tire. Replace a worn
collapsible spare tire in time.
If air compressor does not work
...
Check if tobacco or any other foreign matter is lodged in the cigarette lighter socket.
Remove carefully with a wooden pick. Do
not use metal object to prevent short circuit.
... Check if fuse is blown. Replace with new
equivalent fuse.

Maintenance of air compressor
The air compressor is maintenance-free. Do
not apply oil or any other lubricant.
The air filter should be cleaned periodically to
assure maximum efficiency of the unit.

85



Lockable Wheel Nuts You can guard against wheel theft by installing lockable wheel nuts on your wheels. Each kit
contains three keys and four wheel nuts with
lock sleeve. The locking mechanism is
identical for all four wheel nuts. When taking
the vehicle to your Porsche dealer or to a
workshop for wheel or tire service, remember to leave one key with the service attendant.
In case of loss, duplicate keys cannot be
furnished by your Porsche dealer. Do not
leave these keys in the vehicle. Keep them
in a safe place.
To unlock a wheel

1. Remove protective plastic cap from wheel
nut.
2.
Insert key all the way and turn left about
30°.
3.
Remove lock sleeve together with inserted
key.
To lock a wheel
1. Turn the key again approx 30° to the right and remove.
2.
Push the lock onto the wheel nut until you
can feel it latch.
3.
Check whether the sleeve (of the lock) is up against the collar of the wheel nut.
4. Generally it is not necessary to balance the wheels after installing the lockable wheel nuts.

86

If it fails to light up, the fuse is defective and
must be replaced. Replace black plastic
cover.
The central electrical system contains plug in
relays for various electrical switching
functions.
Defective relays should be tested and
replaced by an authorized Porsche dealer.
To prevent damage to the electrical system
we recommend having all work - including the
installation of electrical accessories -carried
out by your authorized Porsche dealer. . ,

Fuses and Relays
The individual circuits are protected by fuses
to prevent damage to electrical leads and
components due to short-circuits and
overload.
The fuse box with a black plastic cover is
located on the left side in the engine
compartment directly in front of pivot point for
left windshield washer arm.
The use of the fuses and relays is shown
in a list on the inside of the cover of the
fuses and relays.
Replacing a Fuse
Before replacing a fuse, turn off all
electrical components and the ignition;
remove the key. Replacing a fuse or relay with the
engine running or the ignition on could
cause electrical shock.

A blown fuse indicates an overload in the circuit. When a fuse is blown it is not sufficient
to merely replace it. The cause of the short
circuit or overload must be located. Fuses
should never be patched up with tin foil or
wire as this may cause serious damage
elsewhere in the electrical circuit.
Open snap-on latches and remove plastic
cover.
To find out whether a fuse is serviceable, pull
it out with the plastic pliers specifically
provided for this purpose. Insert the fuse at
the test point on relay (G 3). If the fuse is in
proper condition, the green indicator light will
come on.
Loudspeakers


When installing a radio or booster amplifier,
check that the output is compatible with the
capacity of the loudspeakers supplied with the vehicle.
Rated capacity in Watt (Sinus)
Front Rear
2x10 2x10
HiFi Audio Package 2 x 25 2 x 25
89


Battery-12 Volt
The battery is located under the front hood in
the cowl area.
A replacement battery should always have the same rating as the original equipment battery.
Specifications are printed on the battery
housing.
Before work is done on the electrical
system, the battery must be disconnected
to prevent short circuiting. First
disconnect the negative ground wire and
then the positive cable. To reconnect
battery, reverse the procedure.
Disconnecting the battery while the engine is running will damage the alternator. This
also applies to cars equipped with a
battery main switch.
Never drive the car with a disconnected battery as this will damage the alternator. WARNING

Do not lay tools or other metal objects on the battery as they could cause a short
circuit across the battery terminals.
Do not expose the battery to an open flame or electric spark. Hydrogen gas
generated by the battery is explosive.
Do not let battery acid come in contact with skin, eyes, fabric or painted
surfaces.
If you get electrolyte, which is an acid, in your eyes or on skin, immediately rinse
with cold water several minutes and call a doctor. Spilled electrolyte must be rinsed off at once with a solution of water and baking
soda to neutralize the acid and prevent
damage to fabric and metal.
Checking the electrolyte fluid level
The electrolyte fluid level in your battery can
be checked by unscrewing and opening the
filler vent caps of each cell. The fluid level
should meet the indicator mark in each cell. If
necessary, top off with distilled water.
How often water must be added depends on
operating conditions and on the time of year.
Generally, the electrolyte level must be
checked more often in the summer than in the winter, and more often when driving long distances.
Only fill up to mark, otherwise the electrolyte will overflow when the battery is being charged and cause damage.
Battery care
Battery should be securely mounted
Terminals and connections should be kept
clean and properly tightened. Corrosion can
be prevented by coating terminals and
connections with petroleum jelly or silicone
spray
Vent caps must be securely tightened to
prevent spillage
Winter operation
During 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. Curtail unnecessary power
consumption, particularly in city traffic or when travelling short distances only. Let your
Porsche dealer test the battery's capacity
before winter sets in. A well charged battery
will not only prevent starting problems but will
also live longer.
Battery charging
Automotive batteries lose their efficiency when not in use. The charge available in your
battery can be measured with a hydrometer.
We recommend that battery voltage be tested
by your Porsche dealer who has the
appropriate equipment. If the car is not driven
for prolonged periods, the battery


90

must be charged at least every 6 weeks. A
discharged battery allows rapid formation of
sulfates, leading to premature deterioration of
the plates.
WARNING
Charge battery in a well ventilated area.
Keep away from open flame or electrical
spark. Do not smoke. Hydrogen gas
generated by the battery is explosive.
Electrolyte fluid that may spill during charging should be washed off with a solution of warm water and baking soda to neutralize the acid. If you get electrolyte in your eyes or on your
skin, immediately rinse with cold water for
several minutes and call a doctor.
Never charge a frozen battery. It may
explode because of gas trapped in the ice.
Allow a frozen battery to thaw out first. Never use a fast charger as a booster to start the engine. This may seriously damage the
vehicle's electrical system and the charger.
Fast charging a battery is dangerous and
should only be attempted by a competent
mechanic with the proper equipment.
Slow battery charging
WARNING
Heed all warnings and follow instructions
that come with your battery charger.


Disconnect battery cables and remove the
battery.
All vent caps should be open. If fluid level is low, it should be topped up to the full mark in
each cell.
Connect charger cables.
Charger cables must be connected
POSITIVE (+) to POSITIVE (+) and
NEGATIVE (-) to NEGATIVE (-).
Do not connect or disconnect charger cables while charger is operating. Switch on charger. Normally, a battery should be charged at no
more than 10 percent of its rated capacity.
Rated capacity of the battery in your vehicle
is listed on the battery housing.
After charging, turn off charger and disconnect charger cables. Tighten the vent caps and reinstall battery.



91

Emergency Starting with Jumper Cables
WARNING
Improper use of booster battery to start a
vehicle may cause an explosion.
Lead-acid batteries generate explosive
gases. Keep sparks, flame and lighted
cigarettes away from batteries.
Do not charge a frozen battery, thaw it out
first. Gas trapped in the ice may cause an
explosion.
No attempt should be made to jump start any vehicle with a low electrolyte level in the
battery.
Check electrolyte level of each cell. If
necessary, fill with distilled water to just
above plates.
Make sure the voltage of both batteries is the same. The capacity (Ah) of the booster battery
should not be lower than that of the
discharged battery.
Vehicle with discharged battery: turn off
lights and accessories, remove key, move
lever to N or P and set parking brake.
Vehicle with booster battery should not be
running. Disconnect ground cable.
Remove vent caps from booster battery and
discharged battery. Preferably lay a cloth
over open vents to reduce explosion hazard.

How to use jumper cables WARNING
To avoid serious personal injury and damage to the vehicle, heed all warnings
and instructions of the jumper cable
manufacturer. The jumper cables must be long enough so that neither vehicles nor cables touch
another.
Improper hook-up of jumper cables can
ruin the alternator.
Always connect POSITIVE (+) to POSITIVE
(+), and NEGATIVE (-) to ground on engine
block.
1. Connect clamp of plus-cable to positive (+) terminal of discharged battery (1).
2.
Connect clamp on opposite end of cable to
positive (+) terminal of booster battery (2).
3.
Connect clamp of minus-cable to negative
(-) terminal of booster battery (3).
4.
Connect clamp on opposite end of cable to
a bare metal part bolted directly to the
engine block or to the engine block itself (x)
of car with discharged battery. Connect
clamp as far away from battery as possible.
5. Start engine in the usual manner. If engine
fails to start, do not continue to crank but
contact nearest workshop.
6.
With engine running, remove jumper cables from both cars in exact reverse order: Steps 4 through 1.


7. Reconnect ground cable of booster battery.
A - Discharged Battery
B - Booster Battery
Do not try to start car by pushing or towing.
Damage to the catalytic converter, the
transmission, and/or other components of the
car may result.

92

Replacing Bulbs
944 / 944 S

944 Turbo To avoid short circuits, turn off the respective
electrical components when changing light
bulbs.
Keep bulbs free of grease and dirt. Hold
them only with a clean cloth or soft paper.
Do not use chemical cleaning agents on
the plastic lenses. Plastic lenses should
only be cleaned with water or a mild soap/
water solution.
We recommend that you have an assortment
of spare bulbs in the car.
When traveling abroad don't forget that some
countries require spare bulbs as part of the
safety equipment.
Front - Turn Signal Lights /
Parking Lights

1. Remove the Phillips screws from lamp lens
and remove lens.
2.
Push bulb into holder and twist to the left
(bayonet mount).
3.
Remove bulb.
4. Insert new bulb and turn to the right so that
it snaps into position.
5. Install lamp lens and tighten the retaining screws evenly, alternating from one to the
other.
Do not overtighten screws as this may
crack the lens.
6. Check lights.
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Front

Rear Rear - Turn Signal Lights /
Stop Lights / Parking Lights /
Back-up Lights
1. Open hatchback and unsnap carpeting.
2.
Remove knurled nut and take off bulb
holder
3.
Press defective bulb into socket and turn to
left (bayonet mount). Discard bulb.
4.
Press new bulb into socket, turn to right
until it snaps into position.
5.
Install bulb holder and tighten knurled nut.
6. Snap carpeting back in place.

Side Marker Lights

To change the bulb, open the flap at the front
of the plastic shell beneath the fender. The
rear housing is in the stowage well beneath
the mat.
1.
Unscrew knurled nut and remove the plastic cover.
2. Unclip lamp socket (arrow), remove
defective bulb and fit replacement (bayonet
mount).
3.
Clip socket into place and refit plastic cover. 4. Check that light is functioning correctly.

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Sealed Beam Headlights
Replacing light units
1.
Turn on the ignition and depress light switch to the second stop to raise the concealed
headlights. Then turn off the ignition.
2.
Remove Phillips screw from headlight trim
(arrow), take off the plastic cover.
3.
Remove only the three recessed screws
(arrows) which secure the lamp unit
retaining ring, remove retaining ring, and
take out sealed beam unit.
4.
Disconnect plug from rear of unit.
5. Attach plug to rear of new unit.
6. Insert sealed beam unit and retaining ring,
tighten hold-down screws.
7.
Check headlight adjustment.
8. Install headlight trim and tighten retaining
screw.

Adjusting Headlights
Headlight adjustment should be done with a
headlight aiming device under the following
conditions:
At curb weight of car (i. e. car ready for use
and with full fuel tank).
Driver's seat should be occupied by a person
or a weight of approx. 165 Ibs (75 kg).
Tire pressure must be correct.
Roll car forward a few feet so that the
suspension seeks its normal position.
Headlight adjustment screws
Screw "A" (lateral adjustment)
right turn = beam moves right
left turn = beam moves left
Screw "B" (vertical adjustment)
right turn = beam moves up
left turn = beam moves down
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944 Turbo

944 / 944 S

944 / 944 S
Fog Lights

On the 944 Turbo, before adjusting or
removing the fog lamp unit, loosen the
transparent side parts which are secured with
Phillips-head screws.
1. Loosen the Phillips screws (arrows) and
pull out the entire light unit.
2.
Pull out cable connector plug and unsnap
holding clamps.
3.
Replace defective bulb. Be sure the new
bulb is installed correctly.
4. Refasten holding clamps and plug in cable
connection.
5.
Reinstall light unit and fasten Phillips
screws securely.
Screw "a" (vertical adjustment)
96