2003 NISSAN 350Z heating

1. Air flow control dial
2. Temperature control dial*
3. Fan control dial
4. Rear window defroster button (Refer to the
ª2. Instruments and controlsº section.)
5. Air intake button (Air recirculation and Fresh
air)
6. A/C (Air conditioner) button
* The display of degrees:
ª60-75-90º is used for ÉF (US).
ª18-25-32º is used for ÉC (Canada).
WARNING
IThe air conditioner cooling function
operates only when the engine is
running.
IDo not leave children, impaired
adults, or pets alone in your vehicle.
On hot, sunny days, temperatures in
a closed vehicle could quickly be-
come high enough to cause severe or
possibly fatal injuries to people or
animals.
IDo not use the recirculation mode for
long periods as it may cause the
interior air to become stale and the
windows to fog up.
IPositioning of the heating or air con-
ditioning controls should not be
done while driving, so full attention
may be given to vehicle operation.
Start the engine and operate the controls to
activate the air conditioner.
SAA0602
HEATER AND AIR CONDITIONER
(Automatic)
Heater, air conditioner and audio systems
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AUTOMATIC OPERATION
Cooling and/or dehumidified heating
(AUTO)This mode may be normally used all year round
as the system automatically works to keep a
constant temperature. Air flow distribution and
fan speed are also controlled automatically.
1. Turn the fan control dial and air flow control
dial to the AUTO position.
2. Turn the temperature control dial to set the
desired temperature.
IAdjust the temperature to about 75ÉF (24ÉC)
for normal operation.
IThe temperature of the passenger compart-
ment will be maintained automatically. Air
flow distribution and fan speed are also con-
trolled automatically.Heating (AUTO; A/C off)The air conditioner does not activate. When you
need to heat only, use this mode.
1. Turn the fan control dial and air flow control
dial to the AUTO position.
2. Push the A/C button to turn off the air
conditioner. (The A/C button indicator light
will turn off.)3. Turn the temperature control dial to set the
desired temperature.
IThe temperature of the passenger compart-
ment will be maintained automatically. Air
flow distribution and fan speed are also con-
trolled automatically.
IDo not set the temperature lower than the
outside air temperature. Otherwise the sys-
tem may not work properly.
INot recommended if windows fog up.
Dehumidified defrosting or defogging1. Turn the fan control dial to the desired posi-
tion.
2. Turn the air flow control dial to the DEF
position.
3. Turn the temperature control dial to set the
desired temperature.
ITo quickly remove ice from the outside of the
windows, turn the fan control dial to the
maximum position.
IAs soon as possible after the windshield is
clean, turn the air flow control dial to the
AUTO position to return to the auto mode.
IWhen the air flow control dial is turned to theor
position, the air conditioner
will automatically be turned on at outsidetemperatures above 23ÉF (þ5ÉC) to defog
the windshield, and the air recirculate mode
will automatically be turned off.
Outside air is drawn into the passenger
compartment to improve the defogging per-
formance.
MANUAL OPERATION
Fan speed controlTurn the fan control dial
to manually con-
trol the fan speed.
Turn the dial to the AUTO position to return to
automatic control of the fan speed.
Air recirculation/Fresh airEach time the air intake button is pushed, the
indicator light on the button will alternate
(Air recirculation) and
(Fresh air).
When the
indicator light is on, the interior
air is recirculated. (When the air recirculation
mode is selected with the A/C indicator off while
the fan control dial is in the AUTO position, the
air conditioner will turn on.)
When theindicator light is on, the outside
air is drawn into the passenger compartment.
IWhen the air intake button is pushed for
longer than 1.5 seconds, both indicator lights
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BRAKING PRECAUTIONSThe brake system has two separate hydraulic
circuits. If one circuit malfunctions, you will still
have braking at two wheels.Vacuum assisted brakeThe brake booster aids braking by using engine
vacuum. If the engine stops, you can stop the
vehicle by depressing the brake pedal. However,
greater foot pressure on the brake pedal will be
required to stop the vehicle and the stopping
distance will be longer.Using the brakesAvoid resting your foot on the brake pedal while
driving. This overheats the brakes, increases
wear on the brake linings and pads, and reduces
gas mileage.
To help save the brakes and to prevent the
brakes from overheating, reduce speed and
downshift to a lower gear before going down a
slope or long grade. Overheated brakes may
reduce braking performance and could result in
loss of vehicle control.
WARNING
IWhile driving on a slippery surface,
be careful when braking, accelerat-
ing or downshifting. Abrupt braking
or accelerating could cause the
wheels to skid and result in an acci-
dent.
IIf the engine is not running or is
turned off while driving, the power
assist for the brakes will not work.
Braking will be harder.Wet brakesWhen the vehicle is washed or driven through
water, the brakes may get wet. As a result, your
braking distance will be longer and the vehicle
may pull to one side during braking.
To dry brakes, drive the vehicle at a safe speed
while lightly pressing the brake pedal to heat-up
the brakes. Do this until the brakes return to
normal. Avoid driving the vehicle at high speeds
until the brakes function correctly.ANTI-LOCK BRAKE SYSTEM (ABS)The anti-lock brake system controls the brakesat each wheel so the wheels will not lock when
braking abruptly or when braking on slippery
surfaces. The system detects the rotation speed
at each wheel and varies the brake fluid pressure
to prevent each wheel from locking and sliding.
By preventing wheel lockup, the system helps
the driver maintain steering control and helps to
minimize swerving and spinning on slippery sur-
faces.
Using the systemDepress the brake pedal and hold it down.
WARNING
Do not pump the brake pedal. Doing so
may result in increased stopping dis-
tances.Normal operationThe anti-lock brake system will not operate at
speeds below 3 to 6 MPH (5 to 10 km/h) to
completely stop the vehicle. (The speeds will
vary according to road conditions.) When the
anti-lock system senses that one or more wheels
are close to locking up, the actuator (under the
hood) rapidly applies and releases hydraulic
pressure (like pumping the brakes very quickly).
BRAKE SYSTEM5-20
Starting and driving
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WARNING
IDo not continue to drive if your ve-
hicle overheats. Doing so could
cause a vehicle fire.
ITo avoid the danger of being scalded,
never remove the radiator cap while
the engine is still hot. When the ra-
diator cap is removed, pressurized
hot water will spurt out, possibly
causing serious injury.
IDo not open the hood if steam is
coming out.
If your vehicle is overheating (indicated by an
extremely high temperature gauge reading), or if
you feel a lack of engine power, detect abnormal
noise, etc., take the following steps:
1. Move the vehicle safely off the road, apply the
parking brake and move the shift lever to the
N (Neutral) position (automatic transmission
to the P (Park) position).
Do not stop the engine.
2. Turn off the air conditioner switch. Open all
the windows, move the heater or air condi-tioner temperature control to maximum hot
and fan control to high speed.
3. If engine overheating is caused by climbing a
long hill on a hot day, run the engine at a fast
idle (approximately 1,500 rpm) until the tem-
perature gauge indication returns to normal.
4. Get out of the vehicle. Look and listen for
steam or coolant escaping from the radiator
before opening the hood. Wait until no steam
or coolant can be seen before proceeding.
5. Open the engine hood.
WARNING
If steam or water is coming from the
engine, stand clear to prevent getting
burned.
6. Visually check if the cooling fan is running.
The radiator hoses and radiator should not
leak water.
If coolant is leaking or the cooling fan does
not run, stop the engine.
WARNING
IBe careful not to allow your hands,
hair, jewelry or clothing to come into
contact with, or to get caught in the
cooling fan, or drive belt.
IThe engine cooling fan can start at
any time when the coolant tempera-
ture is high.
7. After the engine cools down, check the cool-
ant level in the reservoir tank with the engine
running. Add coolant to the reservoir tank if
necessary. Have your vehicle repaired at the
nearest NISSAN dealer.
IF YOUR VEHICLE OVERHEATS
In case of emergency
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CHANGING ENGINE COOLANTIMajor cooling system repairs should be per-
formed by your NISSAN dealer. The service
procedures can be found in the appropriate
NISSAN Service Manual.IImproper servicing can result in reduced
heater performance and engine overheating.
WARNING
ITo avoid being scalded, never change
the coolant when the engine is hot.
INever remove the radiator cap when
the engine is hot. Serious burns
could be caused by high pressure
fluid escaping from the radiator.
IAvoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.
IKeep coolant out of reach of children
and pets.
1. Open radiator drain plug at the bottom of
radiator, and remove radiator filler cap.
IBe careful not to allow coolant to con-
tact drive belts.
IWaste coolant must be disposed of
properly. Check your local regulations.
2. Close the radiator drain plug securely after
the coolant is drained.3. Fill the radiator slowly with the proper mixture
of anti-freeze solution and demineralized
water/distilled water. Fill the reservoir tank up
to the MAX level. Then install the radiator filler
cap.
4. Start the engine and warm it up until it
reaches normal operating temperature. Then
race the engine 2 or 3 times under no load.
Watch the engine coolant temperature
gauge for signs of overheating.
5. Stop the engine. After it completely cools
down, refill the radiator up to the filler open-
ing. Fill the reservoir tank up to the MAX level.
Check the drain plug for any sign of leakage.
6. Recheck the coolant level after the vehicle
has been driven for a day.
SDI1442
Maintenance and do-it-yourself
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Aftermarket fuel additivesNISSAN does not recommend the use of any
fuel additives (that is, fuel injector cleaner, oc-
tane booster, intake valve deposit removers,
etc.) which are sold commercially. Many of these
additives intended for gum, varnish or deposit
removal may contain active solvent or similar
ingredients that can be harmful to the fuel sys-
tem and engine.Octane rating tipsIn most parts of North America, you should use
unleaded gasoline with an octane rating of at
least 87 or 91 AKI (Anti-Knock Index) number.
However, you may use unleaded gasoline with
an octane rating as low as 85 AKI number in
these high altitude areas [over 4,000 ft (1,219
m)] such as: Colorado, Montana, New Mexico,
Utah, Wyoming, northeastern Nevada, southern
Idaho, western South Dakota, western Ne-
braska, and that part of Texas which is directly
south of New Mexico.
Using unleaded gasoline with an octane
rating lower than stated above can cause
persistent, heavy spark knock. (Spark
knock is a metallic rapping noise.) If se-
vere, this can lead to engine damage. If you
detect a persistent heavy spark knock even
when using gasoline of the above stated
octane rating, or if you hear steady sparkknock while holding a steady speed on
level roads, have your dealer correct the
condition. Failure to correct the condition
is misuse of the vehicle, for which NISSAN
is not responsible.
Incorrect ignition timing will result in knocking,
after-run or overheating. This in turn may cause
excessive fuel consumption or damage to the
engine. If any of the above symptoms are en-
countered, have your vehicle checked at a
NISSAN dealer or other competent service fa-
cility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.9-4
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load, worn suspension or other possible
causes of either condition.
IAlways secure items in the trailer to prevent
load shifts while driving.
IBe certain your rear view mirrors conform to
all federal, state or local regulations. If not,
install any mirrors required for towing before
driving the vehicle.
Trailer towing tipsIn order to gain skill and an understanding of the
vehicle's behavior, you should practice turning,
stopping and backing up in an area which is free
from traffic. Steering stability, and braking per-
formance will be somewhat different than under
normal driving conditions.
IAlways secure items in the trailer to prevent
load shift while driving.
IAvoid abrupt starts, acceleration or stops.
IAvoid sharp turns or lane changes.
IAlways drive your vehicle at a moderate
speed.
IAlways block the wheels on both vehicle and
trailer when parking. Parking on a slope is not
recommended; however, if you must do so,
and if your vehicle is equipped with automatic
transmission, first apply the parking brakeand block the wheels, and then move the
transmission selector lever into the P (Park)
position. If you move the selector lever to the
P (Park) position before blocking the wheels
and applying the parking brake, the transmis-
sion may get damaged.
IWhen going down a hill, shift into a lower
gear and use the engine braking effect.
When ascending on a long grade, downshift
the transmission to a lower gear and reduce
speed to reduce chances of engine overload-
ing and/or overheating.
IIf the engine coolant rises to an extremely
high temperature when the air conditioning
system is on, turn off the air conditioner.
Coolant heat can be additionally vented by
opening the windows, switching the fan con-
trol to high and setting the temperature con-
trol to the HOT position.
ITrailer towing consumes more fuel than nor-
mal circumstances.
IAvoid towing a trailer for the first 500 miles
(800 km).
IHave your vehicle serviced more often than at
intervals specified in the recommended main-
tenance schedule.
IWhen making a turn, your trailer wheels will
be closer to the inside of the turn than yourvehicle wheels. To compensate for this, make
a larger than normal turning radius during the
turn.
ICrosswinds and rough roads will adversely
affect vehicle/trailer handling, possibly caus-
ing vehicle sway. When being passed by
larger vehicles, be prepared for possible
changes in crosswinds that could affect ve-
hicle handling. If swaying does occur, firmly
grip the steering wheel, steer straight ahead,
and immediately (but gradually) reduce ve-
hicle speed. This combination will help stabi-
lize the vehicle. Never increase speed.
IBe careful when passing other vehicles.
Passing while towing a trailer requires con-
siderably more distance than normal passing.
Remember the length of the trailer must also
pass the other vehicle before you can safely
change lanes.
ITo maintain engine braking efficiency and
electrical charging performance, do not use
6th gear (manual transmission) or 5th posi-
tion (automatic transmission).
IAvoid holding the brake pedal down too long
or too frequently. This could cause the brakes
to overheat, resulting in reduced braking ef-
ficiency.
When towing a trailer, change transmis-9-18
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