1987 PORSCHE 944 lock

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The ignition key can only be withdrawn in the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

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.
28


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.

29

Lane changer
To indicate your intention when changing
lanes on the highway, slightly push the turn
signal switch lever up or down to the point of
resistance. The lever will return to the OFF
position when released.
Headlight dimmer
With the light switch at stage 2, high beam is
switched on by pressing the lever towards the
instrument panel, and low beam is switched
on by pulling the lever towards the steering
wheel. When high beams are on, the blue indicator light between the tachometer and the right instrument cluster will light up.
You can flash signal other motorists by
repeatedly pulling and releasing the lever just
up to the point of resistance.
Light Switch
Parking light - 1st position
Headlights -2nd position (with ignition key in
switch position "1").
Tail lights, side marker lights, license plate
and instrument lights are on in both switch
positions.
The retractable headlights open when turning
the switch to the second position.
When you open the door while the lights are
on, the buzzer will sound. It is your reminder
to switch off the lights.
Instrument illumination
The instrument illumination goes on when the
vehicle lights are turned on. Turn the
knob to the left of the light switch for infinitely
variable brightness control.
Turn Signal/Headlight
Dimmer Switch Lever
(ignition on)
Lever up - right turn signal
Lever down - left turn signal
The turn signal lever turns off automatically
when the steering wheel is straightened out after completing a turn.
If a turn signal fails, the indicator light flashes
about twice as fast. The light bulb may have
to be replaced.
Headlight flasher
During daylight, you can flash signal with your
foglights (in lieu of horn) by repeatedly pulling
and releasing the lever just up to the point of
resistance.
Fog lights
- with ignition on
Turn on the fog lights by depressing the rocker switch on the dashboard. A green light in the
switch glows when the fog lights are turned
on.
Parking lights - with ignition off . ... Lever up -
right side parking lights on Lever down - left
side parking lights on
30


Windshield Wiper/Washer Lever
(with intermittent wiper operation)
The windshield wiper/washer switch has se-
ven positions:
1 - Low speed
2 - Normal speed
3 - High speed
4 - Intermittent wiper operation
5 - Windshield washers
6 - Windshield washers and wipers
7 - Headlight washers
The time intervals can be set at the control
element to the right of the ignition lock.
Pulling the lever from its basic position
towards the steering wheel activates the
windshield washer pump in the first stage
(switch position 5) and the windshield wipers
in the second stage (switch position 6).
The electric windshield washer system can be operated by pulling the lever toward the
steering wheel from any wiper position.
When the ignition is switched on, the washer
nozzles are heated, depending on the outdoor temperature. Nevertheless, a commercial windshield anti-freeze solution should be
added to the windshield washer water during
cold weather conditions.
Avoid running the wiper blades over a dry
windshield to p
revent scratching the glass. Spray on washer fluid first. A scratched
windshield will reduce visibility.
Always loosen blades frozen to glass
before operating wipers to prevent damage to wiper motor.
WARNING
Worn or dirty wiper blades will reduce
visibility, making driving hazardous. Clean
blades regularly to remove road film and
carwash wax buildup. Use an alcohol base
cleaning solution, a lint free cloth and wipe lengthwise.
Clean all inside and outside window glass
regularly. In vehicles without Securiflex
windshields use an alcohol base cleaning
solution and wipe dry with a lint free or a
chamois cloth.

In vehicles with Sekuriflex windshields, the plastic coating on the inside of the
windshield must not have gummed labels
put on it or be cleaned using aggressive
agents or dry methods. If very dirty, it can
be cleaned with benzine. Make certain that
the plastic coating is not damaged in
cleaning by hard objects such as jewelry
or wristwatches.

31

Right Instrument Cluster
The right instrument cluster combines the oil
pressure gauge with the oil pressure warning
light, the voltmeter with the alternator warning
light as well as the brake fluid warning light.

Oil Pressure Gauge
Engine oil pressure is shown in bars. At 5.000 rpm, with the engine at normal operating temperature (approx. 90°C / 194°F), the pressure should be approx. 4 bar. A slight
drop in oil pressure is normal under certain
operating conditions such as prolonged
highway driving in hot weather.
At idle speed, with the engine oil hot, the oil pressure can sink to 0.5 bar - this does not
indicate any loss of engine performance.
However, if the oil pressure drops suddenly
while you are driving, or if the warning light comes on, pull off the road,
stop the engine
and wait for it to cool down. Check the
engine oil level. If the oil level is normal,
contact the nearest dealer.

Oil Pressure
Warning Light
The oil pressure warning light comes on when the ignition is turned on. It should go out when the engine is started and has reached the
correct oil pressure.
If the oil pressure warning light
does not light up when turning the ignition on, or if it does
not go out after starting the engine, contact
your Porsche dealer immediately.
If the oil pressure warning light comes on
while you are driving, pull off the road and stop the engine .
Check the oil level to make sure you have
enough oil. If oil level is correct and the oil pressure warning light is still on, do not driv
e
the vehicle as severe engine damage may
result. Contact your nearest Porsche dealer
for assistance.
An occasional brief flickering of the oil pressure warning light at idle speed and
normal engine temperature is no cause for
concern if the light goes out upon
acceleration.
The oil pressure warning light is not an
indicator for low engine oil level. To check the
oil level, always use the dipstick.
Make it a habit to have the oil level checked
with every fuel filling.
Voltmeter
The voltmeter shows the overall condition of
the charging system. The needle should
normally stay in the 12-
14 volt range when the engine is running. A temporary drop below 12
volts when starting the engine is normal.
38

Alternator Warning Light
The alternator warning light comes on when
the ignition is turned on. It should go out after
the engine is started.
If the alternator warning light does not light
up when turning the ignition on, or if it does
not go out
after starting the engine, there is a malfunction in the electrical system. If this is
the case, contact your Porsche dealer.
WARNING
If the alternator warning light comes on
while you are driving, pull off the road and
stop the engine.
Check whether the Polyrib-belt is slipping or
broken. The Polyrib-belt not only drives the
alternator for battery charging, but also the air
conditioner compressor.
If the light just flickers lightly, the Polyrib bel t
may be loose and is slipping.
The belt should be tightened or replaced
before you continue driving.


Brake Fluid Warning
Light
The brake warning light monitors the hydraulic dual-circuit brake system. It lights up when the ignition is turned on and should go out after
the engine has been started.
If the brake warning light fails to light up when
the ignition is turned on, or if it fails to go out
after the engine is started, there may be a
malfunction in the electrical system. Let your
Porsche dealer locate and correct the
condition promptly.
Should the light come on while driving, the
brake fluid level in the reservoir could be too
low, or one of the dual brake circuits may
have failed. In either case, the brakes will
function but a much longer distance and a far
greater pedal pressure are required to bring
the car to a halt. See "Brakes" for more
details.
Carefully pull off the road and stop. Have
your car towed to the nearest dealer for
repair. Continued operation of a car with
defective brakes is dangerous.
Antilock
The warning light goes on in the event of a
malfunction in the ABS system. The system is
switched off; the normal brake system
remains fully operational. If the light comes
on, take your vehicle to your authorized dealer for service immediately.
Air Bag
See "Air Bag System" for details.

39

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

Rear Window Wiper
To operate the wiper, depress the rocker
switch (A) on the center console. The rear
window must be sufficiently wet to prevent the glass surface from being scratched.
Ashtray
The ashtray is in the center console. To empty the tray, pull it out of its well.
Reinsert it so that the light "window" points
toward the bulb on the back inside the well.
WARNING
Never use ashtray as waste paper
disposal. Fire hazard!
Glove Compartment
Press locking button to open glove
compartment. With the car lights turned on,
the glove compartment light is automatically
switched on when the glove compartment is
opened.
The compartment is lockable with the ignition
key to help prevent theft.
WARNING
Keep glove compartment door closed
while driving to prevent injury during a
collision.

42




Overhead Interior Light
Located between the two sun visors the
interior light has a three position switch.
Switch Positions
Rearward (a) - on continuously
Center (b) - off
Foreward (c) - on, only with doors open Sun Visors

To protect driver and passenger from side
glare, the sun visors can be moved to the
sides after lifting them out of their center
mounting.
The make-up mirror on the rear of the visor is
fitted with a protective sliding shutter.
43

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.


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