Page 3 of 272
Maintenance and Specifications 212
Engine compartment 222
Engine oil 226
Battery 232
Engine coolant 234
Fuel information 240
Air filter(s) 257
Maintenance product specifications and capacities 259
Engine data 263
Accessories 267
Index 268
All rights reserved. Reproduction by any means, electronic or mechanical
including photocopying, recording or by any information storage and retrieval
system or translation in whole or part is not permitted without written
authorization from MNAO. MNAO may change the contents without notice and
without incurring obligation.
Copyright © 2007 MNAO
Table of Contents
3
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Page 9 of 272
Vehicle Symbol Glossary
Power Windows
Power Window Lockout
Personal Alarm System
FeatureEngine Oil
Engine CoolantEngine Coolant
Temperature
Do Not Open When HotBattery
Avoid Smoking, Flames,
or SparksBattery Acid
Explosive GasFan Warning
Power Steering FluidMaintain Correct Fluid
LevelMAX
MIN
Emission SystemEngine Air Filter
Passenger Compartment
Air FilterJack
Check fuel capSpeed Control
Low Tire Pressure
Warning
INFORMATION ABOUT THIS GUIDE
The information found in this guide was accurate at the time of printing.
Mazda may change the contents without notice.
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
9
Page 14 of 272

Anti-lock brake system:If the
ABS light stays illuminated or
continues to flash, a malfunction has
been detected; have the system
serviced immediately by your
authorized dealer. Normal braking is still functional unless the brake
warning light also is illuminated.
Airbag readiness:If this light fails
to illuminate when the ignition is
turned to ON, continues to flash or
remains on, have the system
serviced immediately by your
authorized dealer. A chime will also sound when a malfunction in the
supplemental restraint system has been detected.
Seat belt:Reminds you to fasten
your seat belt. A Belt-Minder
chime will also sound to remind you
to fasten your seat belt. Refer to the
Seating and safety restraints
chapter to activate/deactivate the Belt-Minderchime feature.
Low tire pressure warning:
Illuminates when your tire pressure
is low. If the light remains on at
start up or while driving, the tire
pressure should be checked. Refer
toInflating Your Tiresin theTires, Wheels and Loadingchapter.
When the ignition is first turned to ON, the light will illuminate for 3
seconds to ensure the bulb is working. If the light does not turn ON,
have the system inspected by your authorized dealer. For more
information on this system, refer toUnderstanding Your Tire Pressure
Monitoring Systemin theTires, Wheels and Loadingchapter.
Charging system:Illuminates when
the battery is not charging properly.
Engine oil pressure:Illuminates
when the oil pressure falls below the
normal range, refer toEngine oilin
theMaintenance and
Specificationschapter.
ABS
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
14
Page 47 of 272

Function Number of bulbs Trade number
Dome lamp 1 912
Map/dome-SuperCab (if
equipped)2
904
Map/dome-Regular Cab (if
equipped)1
904
All replacement bulbs are clear in color except where noted.
To replace all instrument panel lights - see your authorized dealer.
Replacing the interior bulbs
Check the operation of the following interior bulbs frequently:
•interior overhead lamp
•map lamp
For bulb replacement, see an authorized Mazda dealer.
Replacing exterior bulbs
Check the operation of all the bulbs frequently.
Replacing headlamp bulbs
NOTE:The procedure can be difficult. Your Mazda dealer has the proper
tools, training and parts to perform this task. If you have difficulty with
this, visit your local Mazda dealer.
WARNING: Handling Halogen Bulbs: When a halogen bulb
breaks, it is dangerous. These bulbs contain pressurized gas. If
one is broken, it will explode and serious injuries could be
caused by the flying glass. If the glass portion of the bulb is
touched with bare hands, body oil could cause the bulb to
overheat and explode when lit. Never touch the glass portion of
the bulb with your bare hands and always wear eye protection
when handling or working around halogen bulbs.
WARNING: Children and Halogen Bulbs: Playing with a halogen
bulb is dangerous. Serious injuries could be caused by dropping
a halogen bulb or breaking in some other way. Always keep
halogen bulbs out of the reach of children.
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
47
Page 48 of 272

To remove the headlamp bulb:
1. Make sure headlamp switch is in OFF position, then open the hood.
2. Reach behind the lamp assembly for access and disconnect the
electrical connector.
3. Locate the bulb retaining ring
behind the headlamp assembly.
4. Remove the bulb retaining ring
by turning it counterclockwise
and remove the old bulb by
gently pulling it straight back
out of the lamp assembly. Keep
the retaining ring to retain the
new bulb.
To install the new bulb:
Handle a halogen headlamp bulb carefully and keep out of
children’s reach. Grasp the bulb only by its plastic base and do
not touch the glass. The oil from your hands could cause the bulb
to break the next time the headlamps are operated. Always wear
safety glasses while handling bulbs.
NOTE: If the bulb is accidentally touched, it should be cleaned with
rubbing alcohol before being used.
1. With the flat side of the bulb’s plastic base facing upward, insert the
glass end of the bulb into the lamp assembly. You may need to turn
the bulb left or right to align the grooves in the plastic base with the
tabs in the lamp assembly. When the grooves are aligned, push the
bulb into the lamp assembly until the plastic base contacts the rear
of the lamp assembly.
2. Install the bulb retaining ring over the plastic base until it contacts
the rear of the socket by rotating clockwise until you feel a “stop.”
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
48
Page 51 of 272

Replacing fog lamp bulbs
WARNING: Handling Halogen Bulbs: When a halogen bulb
breaks, it is dangerous. These bulbs contain pressurized gas. If
one is broken, it will explode and serious injuries could be
caused by the flying glass. If the glass portion of the bulb is
touched with bare hands, body oil could cause the bulb to
overheat and explode when lit. Never touch the glass portion of
the bulb with your bare hands and always wear eye protection
when handling or working around halogen bulbs.
WARNING: Children and Halogen Bulbs: Playing with a halogen
bulb is dangerous. Serious injuries could be caused by dropping
a halogen bulb or breaking in some other way. Always keep
halogen bulbs out of the reach of children.
NOTE: If the bulb is accidentally touched, it should be cleaned with
rubbing alcohol before being used.
1. Remove the bulb socket from
the fog lamp by turning
counterclockwise.
2. Disconnect the electrical
connector from the fog lamp
bulb.
3. Connect the electrical connector to the new fog lamp bulb.
4. Install the bulb socket in the fog lamp turning clockwise.
Replacing high-mount brake lamp
To remove the brake lamp assembly:
1. Remove the two screws and
lamp assembly from vehicle.
2. Remove the bulb socket from
lamp assembly by rotating it counterclockwise.
3. Carefully pull bulb straight out of socket and push in the new bulb.
To install the brake lamp assembly:
1. Install the bulb socket into the lamp assembly by rotating clockwise.
2. Install the lamp assembly on the vehicle and secure with two screws.
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
51
Page 172 of 272

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
10 10A Cluster (RUN/START), 4x4 module
(RUN/START)
11 10A Smart Junction Box (SJB) (Logic
power)
12 15A Audiophile subwoofer amplifier,
Satellite radio
13 15A Horn, Interior lamps
14 15A High beam headlamp, High beam
indicator (cluster)
15 — Not used
16 30A cartridge
fusePower windows
17 15A Turn signals/Hazards
18 — Not used
19 20A Center High-Mounted Stop Lamp
(CHMSL)/Stop lamps
20 10A Anti-lock Brake System (ABS) module,
Speed control module, Back-up lamps,
Overdrive cancel switch, Electronic
flasher (turn/hazard)
21 5A Starter relay coil
22 5A Radio (START)
23 30A Headlamps (low and high beam)
24 20A Radio battery feed (B+)
25 — Accessory relay (power windows)
26 2A Redundant cruise switch
27 10A Climate control blower relay/blend
doors
28 15A 4x4 module battery feed (B+)
29 20A Cigar lighter, Diagnostic connector
(OBD II)
30 5A Power mirrors
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
172
Page 176 of 272
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
42 7.5A* Trailer tow (left turn)
43 20A* Engine fan relay coil, A/C relay,
Engine sensors, VMV solenoid
44 15A* Ignition coil, Capacitor
45A — Not used
45B — Not used
46A — Fuel pump relay, Fuel injectors
relay
46B — Not used
47 — Engine fan relay
48 — Starter relay
49 — Not used
50 — Not used
51 — Not used
52 — Not used
53 — Not used
54 — PCM relay
55 — Blower relay
56A — A/C clutch solenoid relay
56B — Not used
* Mini Fuses ** Maxi Fuses
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
176