engine coolant SUBARU IMPREZA 2001 2.G Owners Manual

7-10Preparing to drive
You should p erform the following c hec ks and ad justm
ents every d ay b e-
fore you start d riving .
1. Chec k that all wind ows, mirrors, and lig hts are c lean and unob -
struc ted .
2. Chec k the ap p earanc e and c ond ition of the tires. Also c hec k tires for
p rop er inflation. 3. Look und er the vehic le for any sig n of leaks.
4. Chec k that the hood , trunk and rear g ate are full y c losed .
5. Chec k the ad justment of the seat.
6. Chec k the ad justment of the insid e and outsid e mi rrors.
7. Fasten your seat b elt. Chec k that your p asseng ers have fastened
their seat b elts.
8. Chec k the op eration of the warning and ind ic ator lig hts when the ig ni-
tion switc h is turned to the “ON ” p osition.
9. Chec k the g aug es, ind ic ator and warning lig hts af ter starting the en-
g ine. NOTE Engine oil, engine coolant, brake fluid, washer fluid and other fluid
levels should be checked daily, weekly or at fuel stops.
Driving in foreign countries
When p lanning to use your vehic le in another c ountr y:
Confirm the availab ility of the c orrec t fuel. (Refe r to the “Fuel req uire-
ment ” sec tion in this c hap ter.)
Comp ly with all reg ulations and req uirements of eac h c ountry.
Periodic inspections
To keep your vehic le in the b est c ond ition at all t imes, always have the
rec ommend ed maintenanc e servic es listed in the main tenanc e sc hed ule
in the “Warranty and Maintenanc e Booklet ” p erformed at the sp ec ified
time or mileag e intervals.

8-2
Hazard warning flasher
HS0053
Day or nig ht, if your vehic le b ec omes a traffic haz
ard , use the hazard
warning flasher. Avoid stop p ing on the road . It is b est to safely p ull off
the road if a p rob lem oc c urs. The hazard warning fl asher c an b e ac ti-
vated reg ard less of the ig nition switc h p osition.
Turn on the hazard warning b y p ushing the hazard wa rning flasher
switc h. Turn it off b y p ushing the switc h ag ain. NOTE When the hazard warning flasher is on, the turn signals do not work.
Engine overheating
WARNING
Never attempt to remove the radiator cap until the engine has been shut off and has fully cooled down. When the engine is hot,the coolant is under pressure. Removing the cap while the engineis still hot could release a spray of boiling hot coolant, which
could burn you very seriously.
If the eng ine overheats, safely p ull off the road a nd stop the vehic le in a
safe p lac e.

10
Maintenance and service
Maintenance schedule 10-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance precautions 10-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine compartment overview 10-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine oil 10-7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling system 10-12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine coolant 10-13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air cleaner element 10-16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark plugs 10-17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive belts 10-18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual transmission oil 10-19
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission fluid 10-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front differential gear oil (Automatic transmission vehicles) 10-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear differential gear oil 10-23
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power steering fluid 10-25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake fluid 10-26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch fluid (2.5 liter MT models) 10-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake booster 10-29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery 10-29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield washer fluid 10-31
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of windshield wiper blades 10-32 . . . . . . . . . . . . . . . . . . . . . . . .
Brake pedal 10-34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch pedal (Manual transmission vehicles) 10-36 . . . . . . . . . . . . . . . . . . .
Replacement of brake pad and lining 10-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake stroke 10-38
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires and wheels 10-39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressure 10-39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire rotation 10-40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aluminum wheels (if equipped) 10-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses 10-43
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main fuse and fusible link 10-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation of accessories 10-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing bulbs 10-47
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight 10-47
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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.

10-12Cooling system
WARNING
Never attempt to remove the radiator cap until the engine has
been shut off and has cooled down completely. Since the coolantis under pressure, you may suffer serious burns from a spray ofboiling hot coolant when the cap is removed.
CAUTION
The cooling system has been filled at the factory with a high
quality, corrosion-inhibiting, year-around coolant which providesprotection against freezing down to –33F ( –36 C). For adding,
use genuine SUBARU coolant or an equivalent: a mixture of 50%
soft water and 50% ethylene-glycol basis coolant. Use of improp-er coolants may result in corrosion in the cooling system. It is im-portant to maintain protection against freezing and corrosion,
even if freezing temperatures are not expected. Never mix differ-ent kinds of coolant. Do not splash the engine coolant over painted parts. The alco-
hol contained in the engine coolant may damage the paint sur-face.
Hose and connections
Your vehic le emp loys an elec tric c ooling fan whic h is thermostatic ally
c ontrolled to op erate when the eng ine c oolant reac h es a sp ec ific tem-
p erature.
If the rad iator c ooling fan d oes not op erate even w hen the eng ine
c oolant temp erature g aug e exc eed s the normal op erat ing rang e, the
c ooling fan c irc uit may b e d efec tive. Chec k the fus e and rep lac e it if
nec essary. If the fuse is not b lown, have the c ooli ng system c hec ked
b y your SUBARU d ealer.
If freq uent ad d ition of c oolant is nec essary, there may b e a leak in the
eng ine c ooling system. It is rec ommend ed that the c ooling system
and c onnec tions b e c hec ked for leaks, d amag e, or lo oseness.

Maintenance and service10-13
–
CONTINUED –

Engine coolant Checking the coolant level
Chec k the c oolant level at eac h fuel stop .
HG0114
“
FULL ”
level mark
“ LOW ”
level mark
1. Chec k the c oolant level on the outsid e of the res ervoir while the
eng ine is c ool.
2. If the level is c lose to or lower than the “LOW ” level mark, ad d
c oolant up to the “FULL ” level mark. If the reserve tank is emp ty, re-
move the rad iator c ap and refill as req uired .
HG0115
Rubber gaskets
3. After refilling the reserve tank and the rad iator , reinstall the c ap s
and c hec k that the rub b er g askets insid e the rad iat or c ap are in the
p rop er p osition.

10-14
Changing the coolant
WARNING
Never attempt to remove the radiator cap until the engine has
been shut off and has cooled down completely. Since the coolantis under pressure, you may suffer serious burns from a spray ofboiling hot coolant when the cap is removed.
Chang e the eng ine c oolant in the following p roc ed ur es ac c ord ing to
the maintenanc e sc hed ule in the “Warranty and Maintenanc e Book-
let ”.
1. Plac e a p rop er c ontainer und er the d rain p lug and loosen the d rain
p lug .
HGA000BB
2. Loosen the rad iator c ap to d rain the c oolant from the rad iator. Then
d rain the c oolant from the reserve tank. Tig hten th e d rain p lug sec ure-
ly.

Maintenance and service10-31
–
CONTINUED –
Windshield washer fluid
CAUTION
Never use engine coolant as washer fluid because it could cause paint damage.
Chec k the level of the washer fluid at eac h fuel st op . If the level is low, fill
the fluid up to the nec k of the reservoir.
Use wind shield washer fluid . If wind shield washer f luid is unavailab le use
c lean water.
In areas where water freezes in winter, use an anti -freeze typ e wind shield
washer fluid . SUBARU Wind shield Washer Fluid c ontai ns 58.5% methyl
alc ohol and 41.5% surfac tant, b y volume. Its freezi ng temp erature varies
ac c ord ing to how muc h it is d iluted , as ind ic ated b elow.
Washer Fluid Concentration
Freezing Temperature
30% 50%
100%10.4 F(–12 C)
–4 F(–20 C)
–49 F(–45 C)
HG0122