2000 SUBARU IMPREZA cooling

Index13-3
CHECK ENGINE warning lig ht/Malfunc tion ind ic ator la
mp 3-7. . . . . . . . . . .
Child restraint systems 2-20
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Child safety loc ks 1-7
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Cig arette lig hter (if eq uip p ed ) 6-9
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Cleaning aluminum wheels 9-5
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Cleaning the interior 9-6
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Cloc k 3-11
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Cloc k func tion 5-11
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Clutc h fluid (2.5 liter MT mod els) 10-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutc h p ed al (Manual transmission vehic les) 10-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coat hook 6-12
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Coin tray 6-5
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Cooling system 10-12
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Corrosion p rotec tion 7-46, 9-4
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Cruise c ontrol (if eq uip p ed ) 7-28
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Cup hold er 6-6
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D
Dashb oard storag e c omp artment 6-5
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Dimensions 11-2
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Disc b rake p ad wear warning ind ic ators 7-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome/Rear map read ing lig ht (if eq uip p ed ) 6-13, 10-5 8
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Door loc ks 1-3
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Door op en warning lig hts 3-10
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Drive b elts 10-18
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Driving in foreig n c ountries 7-10
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Driving tip s for AWD vehic les 7-37
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E
Elec tric al system 11-3
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Emerg enc y Loc king Retrac tor (ELR) func tion (exc ep t 2-p oint typ e seatb elt) 2-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Eng ine 11-2
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Eng ine c omp artment overview 10-6
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Eng ine c oolant 10-13
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Eng ine exhaust g as (Carb on monoxid e) 7-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-8

Air conditioner operation Cooling or dehumidifying
HS0081
HS0082
ON position
For c ooling and d ehumid ific ation of the p asseng er c omp artment, air
flows throug h the instrument p anel outlets:
1. Set the air inlet selec tion lever to the “
” p osition.
2. Set the air outlet c ontrol d ial to the “
” p osition.
3. Push the air c ond itioner b utton on.
4. Set the temp erature c ontrol d ial to the b lue area .
5. Set the fan sp eed c ontrol lever at the hig hest sp eed .
Defrosting or defogging CAUTION
The air conditioner compressor will not cycle on automatically when set the air outlet control dial to the “
” position. In
order to take advantage of the air conditioning system ’s ability to
dehumidify the air in the passenger compartment, it is also nec-
essary to depress the air conditioner button.

4-10c lean b ec ause c ooling p erformanc e is imp aired b y an
y ac c umulation
of insec ts and leaves on the c ond enser. Efficient cooling after parking in direct sunlight
After p arking in d irec t sunlig ht, d rive with the wi nd ows op en for a few
minutes to allow outsid e air to c irc ulate into the heated interior. This re-
sults in q uic ker c ooling b y the air c ond itioner. Ke ep the wind ows
c losed d uring the op eration of the air c ond itioner for maximum c ooling
effic ienc y. Lubrication oil circulation in the refrigerant circuit
Op erate the air c ond itioner c omp ressor at a low eng ine sp eed (at id le
or low d riving sp eed s) a few minutes eac h month d ur ing the off-sea-
son to c irc ulate its oil. Checking air conditioning system before summer season
Chec k the air c ond itioner unit for refrig erant leak s, hose c ond itions,
and p rop er op eration eac h sp ring . This c hec k is b es t p erformed b y
your SUBARU d ealer. Cooling and dehumidifying in high humidity and low tempera- ture weather condition
Und er c ertain weather c ond itions (hig h relative hum id ity, low temp era-
tures, etc .) a small amount of water vap or emission from the air outlets
may b e notic ed d uring c ooling or d ehumid ifying . Thi s c ond ition is nor-
mal and d oes not ind ic ate any p rob lem with the air c ond itioning sys-
tem. Air conditioner compressor shut-off when engine is heavily loaded
To imp rove ac c eleration and g as mileag e, the air c o nd itioner c om-
p ressor is d esig ned to temp orarily shut off d uring air c ond itioner op -
eration whenever the ac c elerator is fully d ep ressed . Suc h as d uring
rap id ac c eleration or when d riving on a steep up g ra d e.
Refrigerant for your climate control system
Your air c ond itioner uses ozone friend ly refrig eran t HFC134a. There-
fore, the method of ad d ing , c hang ing or c hec king th e refrig erant is
d ifferent from the method for CFC12 (freon). Consul t your SUBARU

Climate control4-11
–
CONTINUED –
d ealer for servic e. Rep airs need ed as a result of
using the wrong re-
frig erant are not c overed und er warranty.
Air filtration system (if equipped)
If your vehic le ’s air c ond itioning system is eq uip p ed with a op tion al air
filtration system, rep lac e the filter element ac c or d ing to the rep lac ement
sc hed ule shown b elow. This sc hed ule should b e follo wed to maintain the
filter ’s d ust c ollec tion ab ility. Und er extremely d usty c o nd itions, the filter
should b e rep lac ed more freq uently. Sinc e the filte r element is a visc ous
typ e, it is unnec essary to c lean or wash the elemen t. It is rec ommend ed
that you have your filter c hec ked or rep lac ed b y yo ur SUBARU d ealer.
For rep lac ement, use only a g enuine SUBARU air filt er kit.
Replacement schedule: Every 12 months or 7,500 miles (12,000 km) whichever comes first
NOTE The filter can influence the air conditioning, heating and defroster performance.
Replacement procedure
HS0254
HS0253
Screws
Old filter
Cooling unit
Filter cover and rubber seal
1. Remove the filter c over b y removing the two (2) s c rews.
2. Remove the old filter.

4-12
HS0256
HS0255 Filter cover
Screws
New filter
Plastic tabRubber sealCooling unit
3. Insert a new filter with the p lastic tab fac ing f orward .
4. Install rub b er seal on the d uc t op ening .
CAUTION
Make certain that the rubber seal is evenly seated on the duct opening.
5. Install the filter c over and sec ure with two (2) sc rews.
Caution label
HS0257
Center pillarChange label
6. Fill out information on the small lab el sup p lied
with the filter kit.
7. Attac h small and larg e lab els on the lower p art o f the c enter p illar.

8-4
Jump starting
WARNING
Battery fluid is SULFURIC ACID. Do not let it come in contact
with the eyes, skin, clothing or the vehicle. If battery fluid gets on you, thoroughly flush the exposed area
with water immediately. Get medical help if the fluid has enteredyour eyes.If battery fluid is accidentally swallowed, immediately drink a
large amount of milk or water, and obtain immediate medicalhelp.
Keep everyone including children away from the battery. The gas generated by a battery explodes if a flame or spark is
brought near it. Do not smoke or light a match while jump start-ing. Never attempt jump starting if the discharged battery is frozen.
It could cause the battery to burst or explode. Whenever working on or around a battery, always wear suit-
able eye protectors, and remove metal objects such as rings,
bands or other metal jewelry. Be sure the jumper cables and clamps on them do not have
loose or missing insulation.Do not jump start unless cables in suitable condition are avail-able. A running engine can be dangerous. Keep your fingers, hands,
clothing, hair and tools away from the cooling fan, belts and anyother moving engine parts. Removing rings, watches and ties isadvisable.
CAUTION
The battery used for boosting must be 12V. Do not jump start un-
less you are sure that the booster battery is correct.

10
Maintenance and service
Maintenance schedule 10-3
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Maintenance precautions 10-3
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Engine compartment overview 10-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine oil 10-7
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Cooling system 10-12
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Engine coolant 10-13
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Air cleaner element 10-16
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Spark plugs 10-17
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Drive belts 10-18
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Manual transmission oil 10-19
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Automatic transmission fluid 10-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front differential gear oil (Automatic transmission vehicles) 10-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear differential gear oil 10-23
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Power steering fluid 10-25
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Brake fluid 10-26
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Clutch fluid (2.5 liter MT models) 10-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake booster 10-29
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Battery 10-29
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Windshield washer fluid 10-31
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Replacement of windshield wiper blades 10-32 . . . . . . . . . . . . . . . . . . . . . . . .
Brake pedal 10-34
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Clutch pedal (Manual transmission vehicles) 10-36 . . . . . . . . . . . . . . . . . . .
Replacement of brake pad and lining 10-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake stroke 10-38
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Tires and wheels 10-39
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Tire pressure 10-39
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Tire rotation 10-40
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Aluminum wheels (if equipped) 10-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses 10-44
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Main fuse and fusible link 10-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation of accessories 10-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing bulbs 10-49
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Headlight 10-49
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10-4
Always use the proper tools and make certain that they are
well maintained. Never get under the vehicle supported only by jack. Always
use a safety stands to support the vehicle. Never keep the engine running in a poorly ventilated area,
such as a garage or other closed areas. Do not smoke or allow open flames around the fuel or battery.
This will cause a fire. Wear adequate eye protection to guard against getting oil or
other fluids in your eyes. If something does get in your eyes,
thoroughly wash it out with clean water. Because the fuel system is under pressure, replacement of the
fuel filter should be performed only by your SUBARU dealer. The SRS airbag has no user-serviceable parts. Tampering with
or disconnecting the system ’s wiring could result in accidental
inflation of the airbag or could make the system inoperative,
which may result in serious injury. The wiring harnesses of theSRS airbag system are covered with yellow insulation and the
connectors of the system are yellow, for easy identification. Donot use electrical test equipment on any circuit related to the SRSairbag system. For required servicing of the SRS airbag, see your
nearest SUBARU dealer. Before checking or servicing in the engine compart- ment
Always stop the engine and set the parking brake firmly to pre-
vent the vehicle from moving. Always let the engine cool down. Engine parts become very
hot when the engine is running and remain hot for some time af-ter the engine is stopped. Do not spill engine oil, engine coolant, brake fluid or any other
fluid on hot engine components. This may cause a fire. Always remove the key from the ignition switch. When the
ignition switch is in the “ON” position, the cooling fan may oper-
ate suddenly even when the engine is stopped.