Fan PORSCHE 944 1987 1.G Owners Manual

INDEX
A
ABS Acceleration diagram Accelerator pedal Air Bag System Air - cleaner
- conditioner
- filter
Alternator warning light Antifreeze Antilock, Brake system Anti-theft alarm Ashtray Automatic- garage door
- speed control
- transmission
- transmission fluid B
Battery
Boost pressure gauge
Brake - booster
- fluid
- fluid warning light
- pads
- parking
- pedal
- system
- warning light
Break-in hints
Bulb replacing
Buzzer 28,39
118-129
55
20, 21, 38, 3980, 8144-4680,81 39
74,75,11028, 39
11
42, 98
25
29
53-55
78,110,128
90-9234
27
39,79,11039
27,37,47,79,80 26
26, 27
26,27,11537
47
93-98
10,18,24,30
C/D
CASIS
Capacities
Car care instructions
Casis
Catalytic Converter
Cautions
Central locking
Central warning light
Cigarette lighter
Cleaning
Clock
Clutch pedal
Collapsible spare tire
Control warning light system
Coolant Temperature Gauge
Cooling system
Corrosion prevention
Dashboard
Defogging/defrosting
Dimensions
Doors
Driving hints
E/F
Electrical system
Emergency- flasher
- starting
Emission Control System
Engine - cooling
- exhaust
- hood
- number
- oil checking & changing
- oil
-speed, max 35
110
61-66
35
50,10267
13
37
41
61-66 40
27
85
36-39 36
74-77
65-66
24
44-46 114
12,138-9, 48, 49
89-92
41
92
100-103 74-77
48
586
69-72
69,110,111,128
34,47,52,106-
108
Fan control switch knob
Fan, radiator
Filling capacities
Fog lights
Fuel - economy
- evaporation control
- gauge
- recommendation
- tank
Fuses and relays
G/H
Gas Station Information
Gasohol
Gasoline
Gear ratio diagram
Gearshift lever
Glove compartment
Hatchback
Headlights
Headlight- dimmer
- flasher
- switch
- washing system
Heater/ventilation controls
Hood - front
- rear
Horn
I/J
Ignition/steering lock
Instrument illumination
Instruments
Interior ligh 44
36, 74 110
30, 96, 97
49
103 37
50, 51
50,110
89,126
126-129 51
50,51
122-125 52-55
42
56
30,95,99 30
30
30
31,32,81,11044-4658
56,57
21,24
24
30
33-40
43, 98
4

Jack
- supports
K/L
Keys
Kickdown
Lane changer
Leather
License plate light
Light switch
Lights - ashtray
- fog
- interior
- license plate
- parking
- turn signal
Locks - doors, wheels
Loudspeakers
Lubricants
Luggage compartment
M/O
Manual transmission
- oil
Mirrors
Oil- change
- consumption
- filter changing
- pressure gauge
- pressure warning light
Octane rating
Oxygen Sensor
P/R
Paint code number 68
87, 88, 129
10-11,86 55
30
65
98
30
98
30, 96, 97
43, 9898
30, 37, 93, 94
30,93,94
10-13, 86 89
110,111 57
52,122-125 77,11022,43
71,72
47, 69
71, 72 38
38
50, 51,106-108 101,102
7
Parking- brake
- lights
Performance
Power assisted steering
Power train
Power windows
Prop-up roof
Radiator fan
Rear - hood
- view mirrors
- window defogger
- wiper
Recirculation Switch
Refrigerant
Relays
Rims
Roof racks
Roof, removable S
Safe driving hints
Safetybelts
Safety belt warning light
Safety compliance sticker
Seat heating System
Seats
Sekuriflex windshield
Shift indicator
Shift points
Side marker lights
Ski racks
Snow- chains
- tires
Spare tire, collapsible
Spark plugs
Specifications, engine
26, 3730,37,93,94116731091259, 6036, 7456,572241424446,11089,12664,112,11357,11459, 60
8-9
17-21,6518,3771514-1631, 63, 643552-559457,11483, 84,112,113
83,84, 111,113
85106-108106-109
Speedometer
Starting procedures
Sun visors
T/U
Tachometer
Technical data
Tirepressure
Tires
Tool kit
Trip odometer
Transmission oil
Trunk
Turn signal lights
Undercoating
Unleaded fuel
V/W
Vehicle identification
Ventilation
Voltmeter
Warning/indicator lights
Washer reservoir
Washing
Water temperature gauge
Weatherstrips
Weights
Wheel alignment
Wheel nuts, lockable
Wheels
Wheel changing
Windows
Windshield- washer reservoir
- wiper/washer lever 3324, 2543
34, 35105-12582,112,113,12947,82-87,112,113683377, 78,11056,5730, 37, 93, 9465, 66,10050, 51,106-108,110
6-744-463835-4081,11061-6636641141158647,64,82-87,11285-8812,63,6481,11031
5

Dear Porsche Owner Before going on a trip...
A lot has gone into the manufacture of your Porsche, including advanced engineering
techniques, rigid quality control and
demanding inspections. These engineering
and safety features will be enhanced by
you... the safe driver...
who knows his car and all controls who maintains his vehicle properly who uses his driving skills wisely, and who always drives within his own capabilities and
his level of familiarity with his vehicle.
You will find helpful hints in this manual on
how to perform most of the checks listed on
these pages. If in doubt, have these checks
performed by your Porsche dealer.
First things first
Turn the engine off before you attempt any
checks or repairs of the vehicle.
Be sure tires are inflated correctly. Check for
damage and tire wear.
See that wheel bolts are properly tightened
and not loose or missing.
Check engine oil level, add if necessary.
Make it a habit to have engine oil checked
with every fuel filling. Check coolant level to assure sufficient
engine cooling.
Be sure you have a well charged battery. Check brake fluid level. If too low, have
brake system checked.
Replenish windshield washer fluid. Check if engine hood is latched safely. Replace worn or cracked wiper blades. See that all windows are clear and
unobstructed.
Keep air intake slots and area between engine hood and windshield free of snow and ice, so that the heater and the windshield wipers work properly.
Check whether all light lenses are clean.
Be sure all lights are working and headlights
are aimed correctly.
Check under vehicle for leaks. Be sure all luggage is stowed securely.
Emergency equipment 3
It is good practice to carry emergency
equipment in your vehicle. Some of the things
you should have are: window scraper, snow
brush, container or bag of sand or salt,
emergency light, small shovel, first-
aid kit, etc.

8

In the driver's seat... On the road...
Check operation of horn.
Position seat for easy reach of controls. Adjust inside and outside rear view mirrors. Attach your safety belts. Check operation of foot and parking brakes. Check all warning and indicator lights when
starting the engine.
NEVER leave car idling unattended. Lock doors from inside, especially with
children in the car.
To prevent inadvertent opening of doors
from inside or outside, drive with locked
doors.

Never drive after you have consumed
alcohol.
Always have your safety belt attached. Always drive defensively. Expect the unexpected. Use signals to indicate turns and lane
changes.
Turn on headlights at dusk. Always keep a safe distance from the vehicle in front of you, depending on traffic, road and weather conditions. Reduce speed at night and during inclement weather.
Driving in wet weather requires caution and
reduced speeds, particularly on roads with
standing water, as the handling characteristics of the vehicle may be impaired due to tire
aquaplaning.
Also, when crossing stretches of deeper water there is a danger that too high of a speed can
cause water to enter the engine combustion
chambers through the intake air system
and/or water may strike the cooling fan
causing cooling system damage. In order to
avoid possible en- gine or cooling system damage when driving
through deep water, the vehicle should be
driven at a walking speed in first gear.
Observe speed limits and obey road signs.
When tired, get well off the road, stop and
take a rest. Turn the engine off. Do not sit in
the vehicle with engine idling. See
WARNINGS on "Engine Exhaust".
When parked, always set the parking brake.
Move the selector lever to "P" (Automatic
transmission) or move the gearshift lever to
reverse or first gear (Manual transmission).
On hills also turn the wheels toward the curb.
When emergency repairs become necessary, move the vehicle well off the road. Turn on
emergency flasher and use other warning
devices to alert other motorists. Do not park
or operate the vehicle in areas where the hot
exhaust system may come in contact with dry grass, brush, fuel spill or other flammable
material.
Make it a habit to have the engine oil
checked with every fuel filling.
9

Rear View Mirrors

Do not put decals or other signs on the
windows that may interfere with the driver's
vision.
Adjust the outside and inside mirrors before driving. It is important for safe driving that you have good vision to the rear.
Inside day-night mirror

You can adjust the day-
night mirror from clear daylight visibility to non-glare visibility at night by moving the lever at the bottom of the
mirror forward or rearward.
Heated outside mirrors with remote
control


When you turn on the rear window defogger,
the outside rear view mirror is also heated.
The outside mirrors are ad
justable from inside of the vehicle by a four direction switch
located on the left door and a rocker switch
located on the center console ahead of the
gear selection lever. The rocker switch (A)
selects either the left or right mirror for
adjustment. Push
the rocker switch forward to select the left mirror, and rearward to select
the right mirror. Then the four direction switch
will adjust the selected mirror in any of the four directions.
The mirror housing is hinged and can be
folded flat against the c
ar in either direction to prevent damage in tight parking spots.
If necessary, the outside mirrors can also be
adjusted manually.
22

1 Side-window vents 2 Fog light switch
3 Instrument illumination dimmer control
4 Turn signal / headlight dimmer and flasher
switch
5
Left instrument cluster / coolant temperature gauge and fuel gauge
6 Speedometer
7 Central warning light
8 Tachometer
9 Right instrument cluster / oil pressure gauge and voltmeter

10 Intermittent wiper control
11 Rear window defogger switch
12 Fresh air vents
13 Center dashboard vent cut -
off slide14 Temperature rotary switch
15 Emergency flasher switch
16 Glove compartment lock
17 Hatchback release switch
18 Front hood release
19 Light switch
20 Horn
21 Turn signal indicator


22 Ignition / steering lock
23 Wiper / washer lever
24 Trip odometer reset
25
Air volume control knob / defroster switch
26 Fan switch
27 Heating and ventilation control levers -
dashboard / floor
28
Air conditioning switch
29 Clock
30 Cigarette lighter
31 Temperature sensor

23

Ignition/Starter Switch with Steering Lock
The steering is equipped with an anti-theft
ignition lock.
Switch positions
0
The steering is blocked by the steering lock: all circuits wired through the ignition
are switched off.
The ignition key can only be withdrawn in the
"0" position. The parking lights can be
operated in this position by pushing the turn
signal indicator lever up and down (also see
"Parking lights").
1 Position for radio. Steering unlocked. If it is difficult to turn the key, gently move the
steering wheel until the key turns freely.
Note: all circuits which are disconnected in
position "3" can be switched on.
To conserve battery power, switch off other
electrical consumers while playing radio in
position "1".
2
Ignition on. All electric circuits are
operational. With the engine stationary, the
central warning light and all individual
warning lights located in both combination
instruments will light up for a bulb check.
3
The starter is operated by turning the
ignition key to the right. As soon as the
engine starts, release the key. It will spring
back to position "2". With the engine
running, the central and individual warning
lights should go out (see "Central warning
light").
To conserve battery power, the electric
circuits for headlights, rear window de-
fogger/defroster, temperature control and
wiper/washer system are temporarily interrupted during the starting process.
The starter should not be operated for more
than 10 to 15 seconds at a time. If the engine
does not start the first time or stalls at any
time, the ignition key must be returned to the
"0" position. The non-repeat lock in the switch
prevents the
starter from being operated when the engine is running and guards against
starter damage.
To remove the key and to lock the steering
wheel
, turn the key back to position "0" and
pull out. Turn the steering wheel until it locks.

WARNING
Never remove key from ignition lock or
turn key off while vehicle is moving. The
steering wheel will lock, causing loss of
control.
Instrument panel lights
Warning lights for alternator, oil pressure, and
brake system will light up for a bulb check
when the ignition is turned on. They should go out after the engine is started. The brake
warning light will go out after the parking
brake has been fully released. See
"Warning lights" for more details.
Buzzer
If you leave the key in the ignition/steering
lock, the buzzer will sound when the driver's
door is opened. This is a reminder to remove
the key.
For further details see "Starting Procedures"
on the following page.

24

Starting Procedures

WARNING
Fasten safety belts before driving.
Never start or let the engine run in an enclosed, unventilated area. Exhaust
fumes from the engine contain carbon
monoxide, which is a colorless and
odorless gas. Carbon monoxide can be
fatal if inhaled.

Never leave engine idling unattended. An unattended vehicle with a running engine
is potentially hazardous.
Do not park or operate the vehicle in areas where the hot exhaust system may
come in contact with dry grass, brush,
fuel spill or other flammable material.
Never leave engine idling. When starting engine, be ready to drive immediately.
Maintain moderate speed until engine is
warm.

Automatic Transmission - Start with selec-
tor lever in Park.
Manual Transmission - Start with gearshift
lever in Neutral.
Temperature sensors on the engine auto- matically provide the correct fuel/air mixture
required for starting.
Therefore, do not depress the accelerator
pedal while starting a cold or a warm engine.
When starting at very low outside
temperatures , fully depress the clutch pedal,
so that the starter only has to crank the
engine.
As soon as the engine starts, release the ignition key.
If the engine fails to start after 10 to 15
seconds of cranking, wait about 10
seconds before engaging starter again.
Do not let engine idle to warm it up. After
starting, drive vehicle at moderate speeds and with gradual accelerations. Avoid high rpm
and full throttle operation until the engine has
reached normal operating temperature.
Stopping engine
Turn key back to position 0.
Do not stop engine immediately after hard
or extended driving. Keep engine running
at increased idle for about two minutes to
prevent excessive heat buildup before
turning off engine.
WARNING
Before you check anything in the engine compartment, let the engine cool down.
Hot components can burn skin on
contact.

The radiator fan switches on automatically when the coolant reaches a
certain temperature and continues to run
(even with ignition off) until the coolant
temperature drops. Therefore, never
touch the fan blades as they will rotate
spontaneously when the thermoswitch
turns the fan on.

If you have an automatic garage door...
The transistorized ignition system in your
Porsche may interfere with your electronically
operated garage door. To check this: drive
your Porsche close to the garage door and
run the engine at different speeds.
If the garage door opens or closes without
your operating the garage door unit in your
car, contact the dealer who installed the
automatic garage door to have the frequency
and/or coding of the garage door signal
modified.
25

Left Instrument Cluster
The left instrument cluster includes the
coolant temperature and fuel gauges as well
as warning lights for coolant temperature, fuel
reserve, brake-
lining wear, safety belt, parking light and parking brake. The two arrows at the
top are turn signal indicators for vehicles with
trailer coupling.
Coolant temperature

Indicator
Needle in lower field - engine is cold
Avoid high speeds and high engine rpm. During cold engine operation, engine
response and power levels will vary from that
of a warm engine. Due caution and notice of
these engine characteristics will ensure safe
operation of the vehicle.
Needle in center field - normal

Under normal driving conditions, needle
should remain in center field. The needle may
reach the upper field, especially at high
engine loads, but should return to "normal"
when engine load is reduced.

Needle in upper field - warning
If needle enters the upper field the engine is
overheating the warning light comes on.
Reduce speed and engine rpm. The needle
should return to the center field and the
indicator light goes out.
If the needle does not return to the center
field, and the indicator light does not go out,
the radiator fan may not be working to
provide sufficient engine cooling. Pull off the
road and turn off the engine. The fan should
still be running for a while. Failure to do so
may result in severe damage to the engine.
WARNING
Before you check anything in the engine compartment, let the engine cool down.
Hot components can burn skin on
contact. The radiator fan switches on automatically when the coolant reaches a
certain temperature and continues to run
(even with ignition off), until the coolant
temperature drops. Therefore, never

touch the fan blades as they will rotate spontaneously when the termoswitch
turns the fan on.
Be careful if you have to remove the cap from a hot coolant fluid reservoir. Protect
your hands, arms and face against
scalding. Use a thick rag and open the
cap carefully one turn to allow excess
pressure to escape before removing the
cap.

If the fan is not working, the fuse for the fan
may be burned out, or the relay may be
defective. See "Fuses and Relays".
After the engine has cooled down, check the coolant level (see "Cooling System"). If the
coolant level is low, top it up with water.
Check for possible leaks.
If the coolant level is normal, proceed to the
nearest workshop. Avoid idle speed and stop-
and-go driving. But with an inoperative fan,
the coolant will heat up again. When the
needle enters the upper field, stop again and
let the engine cool down before you continue
driving.
Coolant system malfunctions should be
remedied by the nearest Porsche dealer, as
severe engine damage may occur.

36


Fuel Gauge and FuelReserve Indicator
When the ignition is turned on, the amount of
fuel in the tank is indicated by the fuel gauge
in the right part of the dial.
If the needle enters the area in the bottom and the fuel reserve indicator lights up, there is
only a reserve of about. 2.1 U.S. gal/8 liters
left in the tank. Time to refuel at the next gas
station.
Brake Pad
Warning Light
The brake pad warning light comes on when the ignition is turned on and goes out after the engine has started.
If the light stays on when the engine is
running or comes on while driving, the brake
pads are worn, excessively.
Do not continue to operate the vehicle but
have your Porsche dealer check and
replace the brake pads.

Safety Belt
Warning Light
When the ignition is turned on the light will
come on for about 6 seconds to remind driver
and passenger to buckle up. See "Safety
Belts" for more details.


Parking Brake Light
The parking brake light will light up when the
ignition is turned on and the parking brake is
set.
The light goes out when the parking brake is fully released.
Parking Light
The parking light indicator at the bottom in the
left instrument cluster lights up when the
parking lights are switched on.

Turn Signal
Indicator Light
The turn signal indicator light, which is located below the central warning light, will flash at the same frequency as the turn signals. If a turn
signal fails, the control light flashes at about
twice the normal frequency. Have your dealer
check and repair it for you.
High Beam Indicator
Light

The high-beam indicator light, which is located at the top between the tachometer and the
right instrument cluster, will light up when you
switch on the high beams or when you flash
signal. The indicator goes out when you
switch to low beam.

Central Warning Light
The central warning light comes on after
turning on the ignition. This light monitors all
functions displayed by the instruments. If one
of these functions fails, the central warning
light and the pertinent indicator light come on
until the malfunction has been corrected. The
vehicle should immediately be taken to the
nearest authorized workshop.

37

Clock Time setting
A. 12 AM, PM or 24.00 h
With the clock in the time readout mode, keep butto n (2) depressed for 4 seconds -12 AM, PM or 24.00 flashin g. After pushing button (1), either a 12-hour (AM + PM) or
a 24-hour setting program can be selected. If you o nly
want to change the display mode, push button (3). The
clock then returns to its normal timekeeping functi on.
B. Hours
Push button (2) a second time - hour display flashe s.
Set hour by pushing button (1). After pushing butto n
(3)*, the clock returns to the time readout mode wi th
new hour setting.
C. Minutes
Push button (2) once more -
minute display flashes. Set minute by pushing button (1). Upon pushing button ( 3)*, the clock is started - accurate to within 1 second.
Button (1)
Start/Stop Set
12h/24h prog.

Button (2) Reset
Stop watch
Hour/min select

Button (3)
Selector button Time readout Stop watch

If button (3) is pushed during operation A and B, t he
setting procedure must be restarted (push button (2 )).
Stop watch function

The stop watch can only be set in motion if the clo ck is in its
normal timekeeping mode and not during setting
operations .
A. Push button (3) - 00:00 display appears;
B. Push button (1) - stop watch is on;
C. Push button (1) a second time - watch stops. (Addit ional
times can be added by pushing button (1) again - st op
watch keeps running. Push button (1) once more to s top timing.)
D. Push button (2) - 00:00 display appears;
E. Push button (3) - normal timekeeping mode.

40


Cigarette Lighter
Push knob on console in. When ready for use, the lighter will snap back. With the lighter
removed, the socket may be used for small
appliances, such as shaver, hand vacuum
cleaner or air compressor to inflate the
collapsible spare tire. Maximum rating of such
equipment should not exceed 120 W/12 Volt.
Do not damage the socket by trying to
insert plugs of the wrong design.



Rear Window Defogger
The rear window defogger works only with the
ignition key in positions 1 and 2.
The rear window defogger, together with the
flow through ventilation, will help to keep the
inside of the rear window clear of
condensation and frost in the winter.
Depress the switch to turn on the rear window
defogger.
The control light in the switch will light up to
remind you that the defogger is switched on.
After the rear window has been cleared, switch off the rear window defogger to avoid
unnecessary drain on the battery.
Emergency Flasher
If your car is disabled or parked under
emergency conditions, depress the HAZARD
switch to make all four turn signals flash
simultaneously. The light in the switch flashes
at the same frequency.
The emergency flasher works
independently of the ignition switch
position.
WARNING

Whenever stalled or stopped for emergency repair, move the car well off
the road. Turn on the emergency flasher
and mark the car with road flares or other
warning devices. Do not remain in the car.


Do not park or operate the car where the hot exhaust system may come in contact
with dry grass, brush, fuel spill or other
flammable material.
Before working on any part in the engine compartment, turn the engine off and let it cool down sufficiently. Hot components
can burn skin on contact.
Remember the coolant fan is thermostatically controlled and may come on at anytime, regardless of ignition
switch position.
41

Heating Ventilation System
1 Fan switch
2 Air distribution to windshield
3 Air distribution to footwell outlets
4 Temperature switch
5 Defroster switch
6 Recirculation switch

A Air outlet - left side dashboard vent
B Open and close - left side dashboard vent
C
Air outlet - center dashboard vent, left
section
D Open and close - center dashboard vent

E Air outlet - center dashboard vent, right
section
F
Open and close - right side dashboard vent
G Air outlet - right side dashboard vent


44a

Heating and Ventilation
WARNING
Familiarize yourself thoroughly with the proper use and function of the
ventilation/heating, defogging/defrosting
and the air conditioning system.
For safe driving it is extremely important that you follow the operating instructions
in this manual. If in doubt, consult with
your Porsche dealer.
Maximum heating output and fast defrosting can be obtained only after the
engine has reached normal operating
temperature.
Before turning on the air conditioner, move the two air distribution control levers to
their center positions, and move the
temperature control knob to the extreme
counterclockwise position.
Should you suspect that the air
conditioner is damaged, have it checked
promptly. Leaks must be sealed
immediately, since loss of refrigerant may
result in serious damage to the air
conditioner system.

The upper lever (2) controls the air flow to the windshield" right position: open, left position: closed.
The lower lever (3) controls the air flow to the
footwell outlets (right position: open -left
position: closed).
The center dashboard vent can be opened or
closed by operating the lever (D). For closing,
the lever is pushed all the way up. For
opening, push the lever downward for the
desired air volume.
The direction of the air outlet is controlled by
means of handles (C, E) on the vents.
The side dashboard vents are opened or
closed by means of the lower levers (B, F) (

- open, - closed). Again, the air outlet direction is controlled by means of handles (A, G) on the vents.
Heater Control
Activation of the heater control system ensures temperature control in the passenger
compartment in accordance with the
temperature range preset by the temperature
knob. The passenger compartment
temperature is kept constant under varying
climatic conditions.

Fan Control Switch Knob
In order to ensure air circulation even with the
vehicle standing or moving at low speed, the
fan is running at low speed even at switch
position 0. If you desire more air flow, the fan
can be switched to steps 1 through 4.
Defroster Switch
Since the effectiveness of the heating
depends on the cooling water temperature,
the full heating power is not available until the
engine has reached its normal operating
temperature. To achieve the best defroster
effectiveness, the center dashboard vent must be closed entirely (push lever to its extreme
top position). Then press the defroster button - indicator light comes on. Independent of the
position of the upper and lower levers, high-
low temperature switch and the fan control
switch knob, the system automatically
switches to maximum heating power at fan
stage 4 and the full air flow is directed to the
windshield and the side dashboard vents.
Recirculation Switch
When you follow a truck or bus to prevent the
exhaust gases from entering your car through
the fresh air vents, press the recirculation
switch. The fresh air supply is then interrupted and air from inside of the vehicle will be
recirculated. The recirculation effect should
be utilized for only a short period of time to prevent windshield misting! 44b

Automatically Controlled
Air Conditioner
The air conditioning system works only when
the engine is running. Its refrigerating capacity depends on engine speed. If a high
refrigerating capacity is desired, it is
necessary to rev up the engine -
particularly in city or bumper-to-bumper traffic.
The air conditioning system can be turned on
at any air distribution position by pressing the
air conditioner switch. When the system is
turned on, the air conditioning compressor is
activated via a magnetic clutch.
Optimal cooling is achieved when the fan
control switch is at position 4, the windows are closed and the lateral as well as the
center dashboard vents are fully opened and
the temperature switch is set at maximum
cooling power.
When the air conditioning system is on,
additional cooled air enters the glove
compartment through a vent.
After prolonged exposure to sun, it is recommended that you ventilate the
passenger compartment with the windows
down and air conditioning on.
Should the air conditioning system fail, i. e.
uncooled air flows through the vents while the
system is switched on, have it checked in an
authorized workshop.


45

Functioning
The automatic system controls the passenger
compartment temperature in accordance with
the temperature preset by the temperature
knob.
The passenger compartment temperature is
kept constant under varying climatic
conditions.
Cold and warm air is automatically mixed by
means of air flaps operated by a servo motor.
The servo motor is controlled by a passenger
compartment temperature sensor, an ambient
temperature sensor and a temperature sensor located in the air conditioner.
There are several options to satisfy the
requirements of individual comfort with an
automatically controlled air-conditioning
system:
The upper level (2) is operated to direct the air flow towards the windshield (right position:
open; left position: closed).
The lower level (3) can be used to direct the
air flow to the footwell outlets (right position:
open; left position: closed). The positions of
these two levers are infinitely variable and can be set independently of one another. A higher or lower temperature range can be preselected by means of the temperature
control knob.

Air Conditioning System Maintenance The air conditioning system must be turned on for a short period of time at least once a
month. This instruction should be observed
particularly during the cold season to ensure
proper lubrication of the sealing rings and
compressor bearings.
For this purpose, set the temperature control
knob at maximum cooling temperature
(extreme counterclockwise position).
Check the compressor polyrib belt for proper
tension during regular maintenance.
Due to the loss of refrigerant, which is
technically inevitable, the refrigerant level in
the fluid reservoir should be checked at least
once a year.
If gas bubbles are visible over an extended
period of time in the inspection window of the
fluid reservoir while the air conditioner is
running, there is a deficit of refrigerant in the
air conditioning system. The brief appearance
of gas bubbles is due to technical reasons.
Should the air conditioning system fail, i. e.
uncooled air flows through the vents while the
system is switched on, have it checked by
your Porsche dealer.


46

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 vehicles 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 the
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.
67





Tool Kit and Car Jack
The tool kit and jack are stored in the luggage
compartment under the floor mat.
The car jack must be screwed open a little
before it can be removed from the holder.
The tool kit contains tools needed for minor
emergency roadside repairs, adjustments and
wheel changing.
Regulations in some countries require
additional tools. Details should be obtained
prior to leaving for a foreign country.
WARNING

Use the jack only for changing a tire. 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 be used as a support to work underneath the vehicle. If the jack is accidently dislodged, you or bystanders could be seriously injured. When working
under the vehicle, always use safety
stands specifically designed for this
purpose.



68

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