2000 SUBARU IMPREZA steering

9-4
Corrosion protection
Your SUBARU has b een d esig ned and b uilt to resist c
orrosion. Sp ec ial
materials and p rotec tive finishes have b een used on most p arts of the
vehic le to help maintain fine ap p earanc e, streng th, and reliab le op era-
tion.
Most common causes of corrosion
The most c ommon c auses of c orrosion are:
1. The ac c umulation of moisture retaining d irt and d eb ris in b od y
p anel sec tions, c avities, and other areas.
2. Damag e to p aint and other p rotec tive c oating s c au sed b y g ravel
and stone c hip s or minor ac c id ents.
Corrosion is ac c elerated on the vehic le when:
1. It is exp osed to road salt or d ust c ontrol c hemic als, or used in
c oastal areas where there is more salt in the air, or in areas where
there is c onsid erab le ind ustrial p ollution.
2. It is d riven in areas of hig h humid ity, esp ec iall y when temp eratures
rang e just ab ove freezing .
3. Damp ness in c ertain p arts of the vehic le remains for a long time,
even thoug h other p arts of the vehic le may b e d ry.
4. Hig h temp eratures will c ause c orrosion to p arts o f the vehic le
whic h c annot d ry q uic kly d ue to lac k of p rop er vent ilation.
To help prevent corrosion
Wash the vehic le freq uently. If you d rive on salted road s in the winter
or if you live in a c oastal area, you should flush the und erb od y with
fresh water freq uently.
After the winter has end ed , it is rec ommend ed that the und erb od y b e
g iven a very thoroug h washing .
Before the b eg inning of winter, c hec k the c ond ition of und erb od y
c omp onents, suc h as the exhaust system, fuel and b r ake lines, b rake
c ab les, susp ension, steering system, floor p an, and fend ers. If any of
them are found to b e rusted , they should b e g iven a n ap p rop riate rust
p revention treatment or should b e rep lac ed . Contac t your SUBARU

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) 10-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses 10-44
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main fuse and fusible link 10-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation of accessories 10-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing bulbs 10-49
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight 10-49
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10-6Engine compartment overview
1 Manual transmission oil level
g aug e (MT) (p ag e 10-19) or
Differential g ear oil level
g aug e (AT) (p ag e 10-22)
2 Air c leaner element
(p ag e 10-16)
3 Clutc h fluid reservoir
(p ag e 10-28)
4 Automatic transmission fluid
level g aug e (p ag e 10-20)
5 Brake fluid reservoir
(p ag e 10-26)
6 Fuel filter 7
Wind shield washer tank
(p ag e 10-31)
8 Fuse b ox (p ag e 10-44)
9 Battery (p ag e 10-29)
Q Eng ine oil filler c ap
(p ag e 10-7)
W Eng ine c oolant reservoir
(p ag e 10-13)
E Eng ine oil level g aug e
(p ag e 10-7)
R Power steering fluid reservoir
(p ag e 10-25)
T Rad iator c ap (p ag e 10-13) HGA017BB

10-18
Recommended spark plugs
NGK
CHAMPIONNIPPONDENSO
BKR6E-11RC10YC4RC8YC4K20PR-U11
Drive belts
The alternator, p ower steering p ump , and air c ond it ioner c omp ressor d e-
p end on d rive b elts. Satisfac tory p erformanc e req ui res that b elt tension
b e c orrec t.
HGA005BB
in. (mm)
Deflec tion
New b eltUsed b elt
10.28 — 0.35
(7.0 — 9.0)0.35 — 0.43
(9.0 — 11.0)
20.30 — 0.33
(7.5 — 8.5)0.35 — 0.40
(9.0 — 10.0)
To c hec k b elt tension, p lac e a straig hted g e (ruler) ac ross two ad jac ent
p ulleys and ap p ly a forc e of 98 N (22 lb , 10 kg ) mi d way b etween the

Maintenance and service10-25
–
CONTINUED –
Power steering fluid
The p ower steering fluid exp and s g reatly as its tem
p erature rises; the
fluid level d iffers ac c ord ing to fluid temp erature. Therefore, the d ip stic k
has two d ifferent c hec king rang es for hot and c old fluid s.
Checking the fluid level when the fluid is hot
WARNING
Be careful not to burn yourself because the fluid may be hot.
CAUTION
When power steering fluid is being added, use only clean fluid,
and be careful not to allow any dirt into the tank. And never use
different brands together. Avoid spilling fluid when adding it in the tank.
Chec k the p ower steering fluid level monthly.
1. Drive the vehic le several miles to raise the temp erature of the p ow-
er steering fluid up to normal op erating temp eratur e, ab out 140F
(60 C).
2. Park the vehic le on a level surfac e, and stop the eng ine.
3. Turn the reservoir c ap c ounterc loc kwise to remove the fluid level
d ip stic k, wip e the d ip stic k c lean, and reinsert it.
OM-H2531
HG0120 Specified range
Specifiedrange

10-264. Remove the d ip stic k ag ain and c hec k the fluid lev
el on it. If it is
b elow the lower level of the “HOT ” rang e, ad d the rec ommend ed
steering fluid up to the sp ec ified rang e of the d ip stic k.
If the fluid level is extreme low, it may ind ic ate p ossib le leakag e. Con-
sult your SUBARU d ealer for insp ec tion. Checking the fluid level when the fluid is cold
When the fluid level has to b e c hec ked without warm ing up the p ower
steering system (ap p roximately 70 F [ 21 C] ), read the fluid level on
the “COLD ” rang e.
Recommended fluid
“ Dexron II, Dexron II E or Dexron III ” Type Automatic Transmis-
sion Fluid
Brake fluid
Checking the fluid level
WARNING
Never let brake fluid contact your eyes because brake fluid can
be harmful to your eyes. If brake fluid gets in your eyes, immedi-
ately flush them thoroughly with clean water. For safety, whenperforming this work, wearing eye protection is advisable. Brake fluid absorbs moisture from the air. Any absorbed mois-
ture can cause a dangerous loss of braking performance. If the vehicle requires frequent refilling, there may be a leak. If
you suspect a problem, have the vehicle checked at your
SUBARU dealer.

Specifications11-3
–
CONTINUED –
2200 c c
Eng ine mod el EJ222
Eng ine typ e Horizontally op p osed , liq uid c ooled 4 c ylind er,
4 stroke g asoline eng ine
Eng ine d isp lac ement 135.0 c u in (2,212 c c )
Bore 3.81 in. (96.9 mm)
Stroke 2.95 in. (75.0 mm)
Comp ression ratio 10.0 : 1
Firing ord er 1 — 3 — 2 — 4
Electrical system
Battery Typ e MT: 55D23L, AT: 75D23L
Reserve c ap ac ity MT: 99 min., AT: 118 min.
Cold c ranking amp ere MT: 356 amp ., AT: 520 amp .
Alternator 12V - 75A
Sp ark p lug s BKR6E-11 (NGK) RC10YC4, RC8YC4 (CHAMPION)
K20PR-U11 (NIPPONDENSO)
Sp ark p lug g ap 0.039 to 0.043 in. (1.0 to 1.1 mm) Capacities
2.5 Liter mod els Fuel tank 15.9 US g al (60 liter, 13.2 Imp g al)
Eng ine oil 4.2 US q t (4.0 liter, 3.5 Imp q t)
Transmission oil 3.7 US q t (3.5 liter, 3.1 Imp q t)
Automatic transmission fluid 9.8 US q t (9.3 liter, 8.2 Imp q t)
AT d ifferential g ear oil 1.3 US q t (1.2 liter, 1.1 I mp q t)
AWD rear d ifferential g ear oil 0.8 US q t (0.8 liter, 0.7 Imp q t)
Power steering fluid 0.7 US q t (0.7 liter, 0.6 Imp q t)
Eng ine c oolant 6.2 US q t (5.8 liter, 5.2 Imp q t)
2.2 Liter mod els Fuel tank 15.9 US g al (60 liter, 13.2 Imp g al)
Eng ine oil 4.2 US q t (4.0 liter, 3.5 Imp q t)

11-4Transmission oil (AWD) 3.7 US q t (3.5 liter, 3.1 Im
p q t)
Automatic transmission fluid 8.9 US q t (8.4 liter, 7.4 Imp q t)
AT d ifferential g ear oil 1.3 US q t (1.2 liter, 1.1 I mp q t)
AWD rear d ifferential g ear oil 0.8 US q t (0.8 liter, 0.7 Imp q t)
Power steering fluid 0.7 US q t (0.7 liter, 0.6 Imp q t)
Eng ine c oolant 6.2 US q t (5.8 liter, 5.2 Imp q t)
Tires
Typ e Steel b elted rad ial, Tub eless
Size Front and rear P195/60R15 P205/60R15*3
P205/55R16* 2
Sp are T135/70D16
Pressure Front 32 p si (2.2 kg /c m 2
, 220 kp a)
Rear 29 p si (2.0 kg /c m 2
, 200 kp a)
Sp are 60 p si (4.2 kg /c m 2
, 420 kp a)
Wheel size Front and rear 16 x 7JJ* 2
15 x 6JJ
Sp are 16 x 4T
Wheel alig nment Toe Front 0 0.12 in. (0 3 mm)
Rear 0 0.12 in. (0 3 mm)
Camb er Front –0 *4
, –0 25 ’* 5
Rear –0 55 ’, –1 10 ’* 2
* 2
: RS
* 3
: OUTBACK
* 4
: 2.2 liter
* 5
: 2.5 liter