Page 400 of 525
Black plate (399,1)
Engine Compartment Overview
Power steering fluid reservoir
Windshield washer fluid reservoir
Power steering fluid reservoir
Windshield washer fluid reservoir
Engine coolant reservoirFuse block
Engine coolant reservoir
Engine oil-filler capEngine oil-filler cap
Engine oil dipstick Engine oil dipstick
Brake/Clutch fluid reservoir
Brake/Clutch fluid reservoir
Battery
Battery
Fuse block
Automatic transaxle fluid-level dipstick
(Only for automatic transaxle)
MZR 2.0 and MZR 2.5 SKYACTIV-G 2.0
Maintenance and Care
Owner Maintenance
8-17
Mazda3_8BY7-EC-11F_Edition1 Page399
Friday, June 17 2011 2:57 PM
Form No.8BY7-EC-11F
Page 401 of 525
Black plate (400,1)
Power steering fluid reservoir
Windshield washer fluid reservoir
Engine coolant reservoir
Engine oil-filler capBrake/Clutch fluid reservoirBattery
Fuse block
MZR 2.3 DISI Turbo
Engine oil dipstick
8-18
Maintenance and Care
Owner Maintenance
Mazda3_8BY7-EC-11F_Edition1 Page400
Friday, June 17 2011 2:57 PM
Form No.8BY7-EC-11F
Page 408 of 525

Black plate (407,1)
qAdding Brake/Clutch Fluid
WARNING
Be careful not to spill brake fluid on
yourself or on the engine:
Spilled brake fluid is dangerous. If it
gets in your eyes, they could be
seriously injured. If this happens,
immediately flush your eyes with
water and get medical attention.
Brake fluid spilled on a hot engine
could cause a fire.
If the brake/clutch fluid level is low,
have the brakes and clutch inspected: Low brake/clutch fluid levels are
dangerous. Low levels could signal
brake lining wear or a brake system
leak. Your brakes could fail and
cause an accident.
If the fluid level is low, add fluid until it
reaches MAX.
Before adding fluid, thoroughly clean the
area around the cap.
CAUTION
Ø Brake and clutch fluid will
damage painted surfaces. If brake
or clutch fluid does get on a
painted surface, wash it off with
water immediately.
Ø Using nonspecified brake and
clutch fluids (page 10-5) will
damage the systems. Mixing
different fluids will also damage
them.
If the brake/clutch system
frequently requires new fluid,
consult an Authorized Mazda
Dealer.
Power Steering Fluid
qInspecting Power Steering Fluid
Level
CAUTION
To avoid damage to the power
steering pump, don't operate the
vehicle for long periods when the
power steering fluid level is low.
NOTE
Use specified power steering fluid (page 10-5).
Inspect the fluid level in the reservoir at
each engine oil change with the engine off
and cold. Add fluid if necessary; it does
not require periodic changing.
The level must be kept between MIN and
MAX.
Visually examine the lines and hoses for
leaks and damage.
If new fluid is required frequently, consult
an Authorized Mazda Dealer.
Maintenance and Care
Owner Maintenance
8-25
Mazda3_8BY7-EC-11F_Edition1 Page407
Friday, June 17 2011 2:57 PM
Form No.8BY7-EC-11F
Page 423 of 525

Black plate (422,1)
CAUTION
Limited-Slip Differential system;
don't use the following:
ØTires not of the designated size
Ø Tires of different sizes or types at
the same time
Ø Tires not sufficiently inflated
If these instructions aren't followed,
the rotation of the left and right
wheels will be different and will thus
apply a constant load on the limited-
slip differential.
This will cause a malfunction.
q Replacing a Tire
WARNING
Always use tires that are in good
condition:
Driving with worn tires is dangerous.
Reduced braking, steering, and
traction could result in an accident.
Replace all four tires at the same time: Replacing just one tire is dangerous.
It could cause poor handling and
poor braking resulting in loss of
vehicle control. Mazda strongly
recommends that you replace all four
tires at the same time.
CAUTION
(With Tire Pressure Monitoring
System)
When replacing/repairing the tires or
wheels or both, have the work done
by an Authorized Mazda Dealer, or
the tire pressure sensors may be
damaged. NOTE
(With Tire Pressure Monitoring System)lWhen tires with steel wire reinforcement in
the sidewalls are used, the system may not
function correctly even with a genuine
wheel.
Refer to System Error Activation on page
5-35.
lBe sure to install the tire pressure sensors
whenever tires or wheels are replaced.
Refer to Tires and Wheels on page 5-35.
If a tire wears evenly, a wear indicator
will appear as a solid band across the
tread.
Replace the tire when this happens.
New tread
Tread wear indicator
Worn tread
You should replace the tire before the
band crosses the entire tread.
NOTE
Tires degrade over time, even when they are
not being used on the road. It is recommended
that tires generally be replaced when they are
6 years or older. Heat caused by hot climates
or frequent high loading conditions can
accelerate the aging process. You should
replace the spare tire when you replace the
other road tires due to the aging of the spare
tire. The period in which the tire was
manufactured (both week and year) is
indicated by a 4-digit number.
Refer to Tire Labeling on page 9-24.
8-40
Maintenance and Care
Owner Maintenance
Mazda3_8BY7-EC-11F_Edition1 Page422
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Form No.8BY7-EC-11F
Page 429 of 525

Black plate (428,1)
2. Disconnect the electrical connectorfrom the bulb by pressing the tab on
the connector with your finger and
pulling the connector downward.
3. Turn the socket and bulb assembly toremove it. Carefully remove the bulb
from its socket in the reflector by
gently pulling it straight backward out
of the socket.
4. Install the new bulb in the reverse order
of the removal procedure.
(Type B)
1. Make sure the ignition is switched off and the headlight switch is off.
2. Turn the socket and bulb assembly counterclockwise and remove it. 3. Disconnect the bulb from the socket.
4. Install the new bulb in the reverse order
of the removal procedure.
Front turn signal lights/Front side-
marker lights/Parking lights (Canada)
1. Make sure the ignition is switched off and the headlight switch is off.
2. If you are changing the right bulb, start the engine, turn the steering wheel all
the way to the left, and turn off engine.
If you are changing the left bulb, turn
the steering wheel to the right.
3. Turn the center section of the plastic retainer counterclockwise and remove
the retainers and partially peel back the
mudguard.
Installation Removal
8-46
Maintenance and Care
Owner Maintenance
Mazda3_8BY7-EC-11F_Edition1 Page428
Friday, June 17 2011 2:57 PM
Form No.8BY7-EC-11F
Page 431 of 525

Black plate (430,1)
2. Disconnect the electrical connectorfrom the bulb by pressing the tab on
the connector with your finger and
pulling the connector downward.
3. Turn the socket and bulb assembly toremove it. Carefully remove the bulb
from its socket in the reflector by
gently pulling it straight backward out
of the socket.
4. Install the new bulb in the reverse order
of the removal procedure.
Front turn signal lights/Front side-
marker lights/Parking lights
1. Make sure the ignition is switched off and the headlight switch is off. 2. If you are changing the right bulb, start
the engine, turn the steering wheel all
the way to the left, and turn off engine.
If you are changing the left bulb, turn
the steering wheel to the right.
3. Turn the center section of the plastic retainer counterclockwise and remove
the retainers and partially peel back the
mudguard.
Installation Removal
4. Turn the socket and bulb assembly
counterclockwise and remove it.
8-48
Maintenance and Care
Owner Maintenance
Mazda3_8BY7-EC-11F_Edition1 Page430
Friday, June 17 2011 2:57 PM
Form No.8BY7-EC-11F
Page 443 of 525

Black plate (442,1)
DESCRIPTIONFUSE
RATING PROTECTED COMPONENT
15 BTN 2 7.5 A For protection of various circuits
16 AT PUMP ――
17 PTC
*1――
HEATER*240 A Air conditioner
18 INJ 30 A Engine control systemí
19 R.DEF 30 A Rear window defroster
20 IGKEY 2 40 A For protection of various circuits
21 IGKEY 1 40 A For protection of various circuits
22 HORN 15 A Horn
23 STOP 15 A Brake lights
24
10A Engine control system
25 FUEL PUMP 25 A Fuel system
26 ABS 40 A ABS
27 SEAT WARM 20 A Seat warmer
í
28 EHPAS 80 A Power assist steering
29 ―― ―
30 ABS IG 7.5 A ABS
31 SWS 7.5 A Air bag
32 H/L LO RH 15 A Headlight low beam (RH)
33 H/L LO LH 15 A Headlight low beam (LH)
34 ILLUM 7.5 A Instrument panel illumination
35 TAIL 15 A Taillights, Parking lights, License plate lights
36 ENG INJ 15 A Engine control system
37 ENG BAR 15 A Engine control system
38 ENG INJ
*115 A Engine control system
ENG BAR 2*220 A Engine control system
39 EHPAS IG*1――
ETV*215 A Engine control system
*1 SKYACTIV-G 2.0
*2 MZR 2.0, MZR 2.3 DISI Turbo and MZR 2.5
8-60
Maintenance and Care
íSome models.
Owner Maintenance
Mazda3_8BY7-EC-11F_Edition1 Page442
Friday, June 17 2011 2:57 PM
Form No.8BY7-EC-11F
Page 489 of 525

Black plate (488,1)
CAUTION
Rotate unidirectional tires and radial tires that have an asymmetrical tread pattern
or studs only from front to rear, not from side to side. Tire performance will be
weakened if rotated from side to side.
(With limited-slip differential)
Don't use the following:
ØTires not of the designated size
Ø Tires of different sizes or types at the same time
Ø Tires not sufficiently inflated
If these instructions aren't followed, the rotation of the left and right wheels will be
different and will thus apply a constant load on the limited-slip differential.
This will cause a malfunction.
q Replacing a Tire
WARNING
Always use tires that are in good condition:
Driving with worn tires is dangerous. Reduced braking, steering, and traction could
result in an accident.
If a tire wears evenly, a wear indicator will appear as a solid band across the tread.
Replace the tire when this happens.
New tread Tread wear indicator
Worn tread
You should replace the tire before the band crosses the entire tread.
9-34
Customer Information
Tire Information (U.S.A.)
Mazda3_8BY7-EC-11F_Edition1 Page488
Friday, June 17 2011 2:58 PM
Form No.8BY7-EC-11F