2004 MAZDA MODEL 6 HATCHBACK cooling

Black plate (256,1)
To change coolant
WARNING
Removing the Cooling System Cap:
Removing the cooling system cap
while the engine is running or hot is
dangerous. This might lead to cooling
system and engine damage and could
result in serious injury from escaping
hot coolant or steam. Turn off the
engine and wait until it's cool. Even
then, be very careful when removing
the cap.
Wrap a thick cloth around the cap and
slowly turn it counterclockwise to the
first stop (3.0-liter engine) or about
two and a half rotations (2.3-liter
engine).
Step back while the pressure escapes.
When you're sure all the pressure is
gone, press down on the cap (3.0-liter
engine)—still using a cloth—turn
the cap, and remove it.
1. Remove the cooling system cap.
2.3-liter engine
Loosen
Tighten
Loosen Tighten
3.0-liter engine Loosen
Tighten
Tighten
Loosen
2. Only when the engine is cool, remove
the radiator drain plug and drain the
coolant into a suitable container.
Properly dispose of the used coolant.
3. Flush out the system with running
water.
4. Drain the system completely. Insert and
tighten the plug. Add as much
ethylene-glycol-based coolant mixture
and water as necessary to provide
freezing and corrosion protection.
5. In extremely cold climates, add the
mixture percentage recommended in
the coolant mixture percentage table.
6. Run the engine at idle with the cooling
system cap off. Slowly add additional
coolant if necessary.
7. At this point, wait until the engine
reaches normal operating temperature;
then depress the accelerator two or
three times. Add more coolant, if
necessary, until the system is full.
8. Install the cooling system cap. Inspect
all connections for leaks. Inspect the
level in the coolant reservoir one more
time.
8-14
Maintenance and Care
Owner Maintenance
Mazda6_8T12-EA-03K_Edition1 Page256
Friday, December 5 2003 8:58 AM
Form No.8T12-EA-03K

Black plate (282,1)
qFuse Panel Description
Fuse block (Engine compartment)
DESCRIP-
TIONFUSE
RAT-
INGPROTECTED
COMPONENT
1 SPARE 20A—
2 SPARE 15A—
3 SPARE 10A—
4—— —
5—— —
6 INJ 15A Injector
7ENG
BAR10A
*1Air flow sensor, EGR control
valve
15A*2
8ENG
BAR2*115A O2 sensor
ENG
BB
*25A Cooling fan
9HEAD
LR10A Headlight-low beam (Right)
10HEAD
LL10A Headlight-low beam (Left)
DESCRIP-
TIONFUSE
RAT-
INGPROTECTED
COMPONENT
11HEAD
HL10A Headlight-high beam (Left)
12HEAD
HR10A Headlight-high beam (Right)
13ETC 7.5A Accelerator position sensor
14 HAZARD10A Turn signal lights
15STOP 15A Brake/Taillights
16TCM*110A TCM
IG1*215A O2 sensor
17 ENGB7.5A PCM, TCM
18FUEL
PUMP15A Fuel pump
19IG KEY 40AWindshield wiper and washer,
Engine control unit, Lighter
20P.WIND 30A Power window
21—— —
22—— —
8-40
Maintenance and Care
Owner Maintenance
Mazda6_8T12-EA-03K_Edition1 Page282
Friday, December 5 2003 8:59 AM
Form No.8T12-EA-03K

Black plate (283,1)
DESCRIP-
TIONFUSE
RAT-
INGPROTECTED
COMPONENT
23IG
KEY230AReverse lights, Heater control
unit
24 BLOWER40A Blower motor
25BTN 40AOverhead light, Power door
lock
26—— —
27DEFOG 40A Rear window defroster
28ABS 60A ABSí
29AD
FA N*130A Cooling fan
FAN2*2
30FA N*130A Cooling fan
FAN1*2
31TAIL 10ABrake/Taillights, License plate
lights, Parking lights
32 ILLUMI10A Dashboard illumination
33MAG 10A Magnet clutch
34AUDIO 15A Audio system
35P.SEAT 30A Power seatí
36 OPENER7.5A Fuel lid opener
37—— —
38—— —
39FOG 15A Fog lightsí
40MAIN100A*1For protection of all circuits
120A*2
*1 2.3-liter engine
*2 3.0-liter engine
Maintenance and Care
Owner Maintenance
8-41íSome models. Mazda6_8T12-EA-03K_Edition1 Page283
Friday, December 5 2003 8:59 AM
Form No.8T12-EA-03K