2007 SUBARU IMPREZA WRX battery

&Turbo models1) Air cleaner element (page 11-15)
2) Manual transmission oil level gauge (MT)
(page 11-19) or Differential gear oil level
gauge (AT) (page 11-21)
3) Automatic transmission fluid level gauge (page 11-20)
4) Clutch fluid reservoir (page 11-26)
5) Brake fluid reservoir (page 11-25)
6) Fuse box (page 11-42)
7) Battery (page 11-41)
8) Windshield washer tank (page 11-36)
9) Engine oil filler cap (page 11-8)
10) Engine coolant reservoir (page 11-13)
11) Engine oil level gauge (page 11-8)
12) Radiator cap (page 11-13)
13) Power steering fluid reservoir (page 11- 24)Maintenance and service
11-7

Securely retain both ends of the rubber
with the stoppers on the plastic support
ends. If the rubber is not retained properly,
the wiper may scratch the rear windowglass.
5. Install the wiper blade assembly to the
wiper arm. Make sure that it locks in place.
6. Hold the wiper arm by hand and slowly
lower it in position.Battery
WARNING
. Before beginning work on or near
any battery, be sure to extinguish
all cigarettes, matches, and light-
ers. Never expose a battery to an
open flame or electric sparks.
Batteries give off a gas which is
highly flammable and explosive.
. For safety, in case an explosion
does occur, wear eye protection
or shield your eyes when work-
ing near any battery. Never lean
over a battery.
. Do not let battery fluid contact
eyes, skin, fabrics, or paint be-
cause battery fluid is a corrosive
acid. If battery fluid gets on your
skin or in your eyes, immediately
flush the area with water thor-
oughly. Seek medical help imme-
diately if acid has entered theeyes.
If battery fluid is accidentally
swallowed, immediately drink a
large amount of milk or water,
and seek medical attention im-
mediately.
. To lessen the risk of sparks, remove rings, metal watchbands,
and other metal jewelry. Never
allow metal tools to contact the
positive battery terminal and any-
thing connected to it WHILE you
are at the same time in contact
with any other metallic portion of
the vehicle because a short cir-
cuit will result.
. Keep everyone including children
away from the battery.
. Charge the battery in a well-
ventilated area.
. Battery posts, terminals and re-
lated accessories contain lead
and lead compounds, chemicals
known to the State of California
to cause cancer and reproductive
harm. Batteries also contain
other chemicals known to the
State of California to cause can-
cer.
Wash hands after handling.
Maintenance and service
11-41
– CONTINUED –

11-42Maintenance and service
1) Cap
2) Upper level
3) Lower level
It is unnecessary to periodically check the
battery fluid level or periodically refill with
distilled water.
However, if the battery fluid level is below
the lower level, remove the cap. Fill to the
upper level with distilled water.
CAUTION
Never use more than 10 amperes
when charging the battery because
it will shorten battery life. Fuses
CAUTION
Never replace a fuse with one hav-
ing a higher rating or with material
other than a fuse because serious
damage or a fire could result.
The fuses are designed to melt during an
overload to prevent damage to the wiring
harness and electrical equipment. The
fuses are located in two fuse boxes.
One is located under the instrument panel
behind the coin tray on the driver ’s seat
side.
To remove the coin tray, open the cover
and pull the coin tray out.
The other one is housed in the engine compartment.

&Headlights (Except WRX-STI)
Before replacing the left-hand (battery-
side) high-beam light bulb, remove the
screw that retains the windshield washer
nozzle and tip the windshield washer
nozzle sideways.
Non-turbo models
Turbo models
Before replacing the right-hand low- or
high-beam light bulb, remove the bolts
and remove the air intake duct.
CAUTION
Halogen headlight bulbs become
very hot while in use. If you touch
the bulb surface with bare hands or
greasy gloves, finger prints or
grease on the bulb surface will
develop into hot spots and cause
the bulb to break. If there are finger
prints or grease on the bulb surface,
wipe them away with a soft cloth
moistened with alcohol.
NOTE . If headlight aiming is required, con-
sult your SUBARU dealer for proper
adjustment of the headlight aim.. It may be difficult to replace the
bulbs. Have your SUBARU dealer re-
place the bulbs if necessary. Maintenance and service
11-47
– CONTINUED –

11-48Maintenance and service
!Right-hand low beam light bulb
1. Remove the bulb cover, by turning it counterclockwise.
2. Disconnect the electrical connector.
3. Remove the retainer spring.
4. Replace the bulb with a new one.
5. Set the retainer spring securely.
6. Reconnect the electrical connector.
7. Install the bulb cover. !Left-hand low beam light bulb
WARNING
Replacement of the left-hand low
beam light bulb requires removal of
the battery and is thus dangerous. It
must be performed by a SUBARU
dealer. !
High beam light bulbs
1. Disconnect the electrical connector
from the bulb.
2. Remove the bulb from the headlight
assembly by turning it counterclockwise.

&Engine
Engine model EJ253
(2.5-liter, SOHC, non-turbo) EJ255
(2.5-liter, DOHC, turbo, WRX) EJ257
(2.5-liter, DOHC, turbo, WRX-STI)
Engine type Horizontally opposed, liquid cooled 4 cylinder, 4-stroke gasoline engine
Displacement cc (cu-in) 2,457 (150)
Bore 6Stroke in (mm) 3.963.1 (99.5 679.0)
Compression ratio 10.0 : 1 8.4 : 1 8.2 : 1
Firing order 1
–3– 2– 4
& Electrical system
Battery type and capacity (5HR) MT 12V-48AH (55D23L)
AT 12V-52AH (75D23L)
Alternator Non-turbo models 12V-90A
Turbo models 12V-110A
Spark plugs Non-turbo engine
FR5AP-11 (NGK)
Turbo engine ILFR6B (NGK)
AT: Automatic transmission
MT: Manual transmission Specifications
12-3
– CONTINUED –

14-2Index
A
ABS (Anti-lock Brake System) ..................................... 7-21
Warning light ................................................. 3-17, 7-22
Accessories ....................................................... 5-2, 11-44
Accessory power outlet ................................................. 6-6
Active head restraint ..................................................... 1-4
Air cleaner element ................................................... 11-15
Air conditioner ............................................................. 4-7
Air filtration system ..................................................... 4-12
Air flow selection .......................................................... 4-2
Alarm system ............................................................ 2-13
All-Wheel Drive warning light (AT vehicles) .................... 3-19
Aluminum wheels ...................................................... 11-35
Antenna system ........................................................... 5-2
Anti-lock Brake System (ABS) ..................................... 7-21
Arming the system ..................................................... 2-14
Armrest ....................................................................... 1-7
Ashtray ....................................................................... 6-8
AT OIL TEMPerature warning light ............................... 3-17
Audio set .................................................................... 5-3
Auto-dimming mirror/compass ...................................... 3-32
Automatic climate control system ................................... 4-8
Automatic transmission ............................................... 7-15
Capacities ............................................................. 12-4
Fluid .................................................................... 11-20
Selector lever ........................................................ 7-16
Temperature warning light (AT OIL TEMP) ................. 3-17
Automatic/Emergency Locking Retractor (A/ELR) ... ........ 1-11BBattery
.................................................................... 11-41
Jump starting .......................................................... 9-8
Replacement (Remote keyless entry system) .............. 2-7
Brake Booster ............................................................... 11-27
Fluid ................................................................... 11-25
Pad and lining ...................................................... 11-29
Parking ....................................................... 7-24, 11-30
Pedal .................................................................. 11-27
System .................................................................. 7-21
Brake pedal Free play ............................................................. 11-27
Reserve distance .................................................. 11-28
Brake system ............................................................. 7-21
Warning light .......................................................... 3-18
Braking ..................................................................... 7-20
Tips ...................................................................... 7-20
Breaking-in of new brake pads and linings ................... 11-29
Bulb Chart .................................................................... 12-9
Replacing ............................................................ 11-45
C Capacities ................................................................. 12-4
Cargo area Bars ...................................................................... 6-12
Cover .................................................................... 6-10
Light ...................................................................... 6-2
Tie-down hooks ...................................................... 6-11
Catalytic converter ....................................................... 8-3

Rear seatFolding down ........................................................... 1-8
Rear window
Defogger button ..................................................... 3-29
Wiper and washer switch ........................................ 3-28
Wiper blades ........................................................ 11-39
Recommended Automatic transmission fluid ................................... 11-21
Brake fluid. ........................................................... 11-26
Clutch fluid ........................................................... 11-27
OIL grade and viscosity ...................... 11-11, 11-12, 11-20, 11-22, 11-23
Power steering fluid ............................................... 11-25
Spark plugs .......................................................... 11-18
Remote keyless entry system ........................................ 2-7
Replacement
Brake pad and lining ............................................. 11-29
Wiper blades ........................................................ 11-38
Replacing Air cleaner element ............................................... 11-15
Battery (remote keyless entry system) ........................ 2-7
Lost transmitters (keyless entry system) .................... 2-10
Replacing bulbs ........................................................ 11-45
Cargo area light .................................................... 11-51
Clearance light ..................................................... 11-49
Dome light ........................................................... 11-51
Front fog light ....................................................... 11-49
Front turn signal light ............................................. 11-49
Headlight ............................................................. 11-46
High mount stop light ............................................. 11-52
License plate light ................................................. 11-51 Map light
............................................................. 11-51
Rear combination light .......................................... 11-49
Trunk light ........................................................... 11-52
REV indicator light and buzzer ...................................... 3-9
Rocking the vehicle .................................................... 8-12
Roof rail and crossbar ................................................. 8-14
S Safety Precautions when driving ............................................. 4
Symbol ...................................................................... 2
Warnings ................................................................... 2
Seat Fabric ................................................................... 10-5
Heater .................................................................... 1-5
Seatbelt. ........................................................................ 4
Extender ............................................................... 1-18
Maintenance .......................................................... 1-18
Pretensioners ......................................................... 1-19
Safety tips .............................................................. 1-9
Warning light and chime .................................. 1-11, 3-14
Seatbelts .................................................................... 1-9
Security ID plate .......................................................... 2-3
Selector lever ............................................................. 7-16
Position indicator .................................................... 3-20
Shift lock release ........................................................ 7-19
Shock sensors ........................................................... 2-17
Snow tires ................................................................. 8-10
Snowy and icy roads ................................................... 8-9
Sounding a panic alarm ............................................... 2-8
Spark plugs ............................................................. 11-17 Index
14-7