2002 SUBARU IMPREZA WRX cooling

Maintenance and service
11-13
– CONTINUED –
HGB032BB
SAE viscosity number and applicable temperature
1) 5W-30, SAE 5W-30 preferred
2) 10W-30, 10W-40
Recommended grade and viscosity under severe driving conditions
If the vehicle is used in desert areas, in areas with
very high temperatures, or used for heavy-duty ap-
plications such as a towing a trailer, use of oil with
the following grade and viscosities is recom-mended.
API classification SJ or SH: SAE viscosity No.: 30, 40, 10W-50, 20W-40,
20W-50
Cooling system
WARNING
Never attempt to remove the radiator cap until the engine has been shut off and has cooled
down completely. Since the coolant is underpressure, you may suffer serious burns from a
spray of boiling hot coolant when the cap isremoved.
CAUTION
The cooling system has been filled at the
factory with a high quality, corrosion-inhibit-
ing, year-around coolant which provides protection against freezing down to –33°F
(–36 °C). For adding, use genuine SUBARU
coolant or an equivalent: a mixture of 50%
soft water and 50% ethylene-glycol basis cool-
ant. Use of improper coolants may result in
corrosion in the cooling system. It is impor- tant to maintain protection against freezing and corrosion, even if freezing temperaturesare not expected. Never mix different kinds ofcoolant.

Maintenance and service
11-14
Do not splash the engine coolant over
painted parts. The alcohol contained in the en- gine coolant may damage the paint surface.
Hose and connections
Your vehicle employs an electric cooling fan which
is thermostatically controlled to operate when the
engine coolant reaches a specific temperature.If the radiator cooling fan does not operate even
when the engine coolant temperature gauge ex-
ceeds the normal operating range, the cooling fan
circuit may be defective. Check the fuse and re-
place it if necessary. If the fuse is not blown, havethe cooling system checked by your SUBARU deal-
er.
If frequent addition of coolant is necessary, there
may be a leak in the engine cooling system. It is rec-
ommended that the cooling system and connectionsbe checked for leaks, damage, or looseness.
Engine coolant
Checking the coolant level
Check the coolant level at each fuel stop.
HGB001CB
1) “FULL” level mark
2) “LOW” level mark
1. Check the coolant level on the outside of the res- ervoir while the engine is cool.
2. If the level is close to or lower than the “LOW”
level mark, add coolant up to the “FULL” level mark.
If the reserve tank is empty, remove the radiator cap
and refill as required.

Specifications
12-8
Fuse panel located in the engine compartment
HGC002BB
A) FWD socket (except Turbo model)
B) Main fuse Fuse panel
Fuse ratingCircuit
120A
Radiator cooling fan (Main)
220ARadiator cooling fan (Sub)
330AABS motor
420ARear window defog- ger
515AHazard warning flasher
Horn
615ATurn signal lights
710AAutomatic transmis- sion control unit
810AAlternator
915AHeadlight (right side)
1015AHeadlight (left side)
1120ALighting switch
1215AClock
Interior light

Index
14-3
CHECK ENGINE warning light/ Malfunction indicator lamp 3-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking air conditioning system before summer season 4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the brake pedal free play 11-33 . . . . . . . . . . . . .
Checking the brake pedal reserve distance 11-34 . .
Checking the clutch function 11-34 . . . . . . . . . . . . . . . . . . . . . .
Checking the clutch pedal free play 11-35 . . . . . . . . . . . .
Checking the fluid level 11-24, 11-29, . . . . . . . . . . . . . . . . . . .
11-30, 11-31
Checking the gear oil level 11-27 . . . . . . . . . . . . . . . . . . . . . . . .
Checking the oil level 11-9, 11-23, 11-26 . . . . . . . . . . . . . .
Child restraint systems 1-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Child safety locks 2-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette lighter (if equipped) 6-9 . . . . . . . . . . . . . . . . . . . .
Cigarette lighter socket (if equipped) 6-9 . . . . . . . . . . .
Cleaning aluminum wheels 10-3 . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning the interior 10-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning ventilator grille 4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Climate control system 4-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clock 3-14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch fluid (MT vehicles) 11-31 . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch pedal (MT vehicles) 11-34 . . . . . . . . . . . . . . . . . . . . . . . .
Compact disc player operation 5-8 . . . . . . . . . . . . . . . . . . .
Connecting a trailer 8-24, 8-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control panel 4-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cooling and dehumidifying in high humidity and
low temperature weather condition 4-11 . . . . . . . . . .
Cooling system 11-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corrosion protection 8-13, 10-4 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise control (if equipped) 7-27 . . . . . . . . . . . . . . . . . . . . . . .
Cup holder 6-6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D
Daytime running light system 3-17 . . . . . . . . . . . . . . . . . . . . .
Dimensions 12-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disarming the system 2-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disc brake pad wear warning indicators 7-22 . . . . . . .
Dome light 6-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door locks 2-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door open warning lights 3-13 . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive belts 11-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving in foreign countries 8-6 . . . . . . . . . . . . . . . . . . . . . . . .
Driving on snowy and icy roads 8-12 . . . . . . . . . . . . . . . . . .
Driving tips 7-12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving tips for AWD vehicles 8-6 . . . . . . . . . . . . . . . . . . . . .
E
Efficient cooling after parking in direct sunlight 4-10 Electrical power socket located on the lower part of the instrument panel 6-8 . . . . . . . . . . . . . . . . . . .
Electrical system 12-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency Locking Retractor (ELR) 1-12 . . . . . . . . . . . .