Mazda X-5. Manual - part 96

AIR BAG SYSTEM 

08–10–13

08–10

Inflator No.2

1. When the driver-side air bag module receives an operation (deployment) signal from the SAS control module, 

the igniter built into inflator No.2 builds up heat and ignites the inflammation agent.

2. The ignition of the inflammation agent causes the combustion of a gas-generating agent which releases 

nitrogen gas.

3. The nitrogen gas is cooled at the filter and the filtrate is injected into the air bag.

End Of Sie

PASSENGER-SIDE AIR BAG MODULE FUNCTION

E5U081057050N01

Outline

• A dual inflator, divided into inflator No.1 and inflator No.2, has been adopted in accordance with the front air 

bag system two-step deployment control.

End Of Sie

INFLAMMATION
AGENT

IGNITION OF INFLAMMATION AGENT

IGNITER
(INFLATOR NO.1)

GAS GENERATING
AGENT

GAS GENERATING
AGENT COMBUSTION

TO
AIR BAG

TO
AIR BAG

FILTER

ADA8130T003

IGNITER
(INFLATOR NO.2)

GAS GENERATING
AGENT

GAS GENERATING
AGENT COMBUSTION

TO
AIR BAG

TO
AIR BAG

FILTER

ADA8130T004

AIR BAG SYSTEM 

08–10–14

PASSENGER-SIDE AIR BAG MODULE CONSTRUCTION/OPERATION

E5U081057050N02

Inflator Operation
Inflator No.1

1. When the passenger-side air bag module receives an operation (deployment) signal from the SAS control 

module, the igniter built into inflator No.1 builds up heat and ignites the inflammation agent.

2. The ignition of the inflammation agent causes the combustion of a gas-generating agent which releases 

nitrogen gas.

3. The nitrogen gas is cooled at the filter and the filtrate is injected into the air bag.

Inflator No.2

1. When the passenger-side air bag module receives an operation (deployment) signal from the SAS control 

module, the igniter built into inflator No.2 builds up heat and ignites the inflammation agent.

2. The ignition of the inflammation agent causes the combustion of a gas-generating agent which releases 

nitrogen gas.

3. The nitrogen gas is cooled at the filter and the filtrate is injected into the air bag.

End Of Sie

SIDE AIR BAG MODULE FUNCTION

E5U081000147N01

• During a collision to the side of the vehicle, the air bag operates (deploys) after receiving an operation signal 

from the SAS control module, defusing impact to the head and chest areas of the driver or front passenger.

End Of Sie

INFLAMMATION
AGENT

IGNITION OF INFLAMMATION AGENT

IGNITER
(INFLATOR NO.1)

GAS GENERATING
AGENT

GAS GENERATING
AGENT COMBUSTION

TO
AIR BAG

TO
AIR BAG

FILTER

EPU810ZT3022

IGNITER
(INFLATOR NO.2)

GAS GENERATING
AGENT

GAS GENERATING
AGENT COMBUSTION

TO
AIR BAG

TO
AIR BAG

FILTER

EPU810ZT3023

AIR BAG SYSTEM 

08–10–15

08–10

SIDE AIR BAG MODULE CONSTRUCTION/OPERATION

E5U081000147N02

Construction

• Side air bag modules are installed on the outboard sides of the seat backs.

• The side air bag module is composed of an inflator and air bag.

• When the air bag operates (deploys), the seat back trim is spread apart by argon gas generated from the 

inflator, inflating the air bag.

• The inflator operates in the following order:

1. The igniter built into the inflator begins to build up heat when the operation (deployment) signal is sent from 

the SAS control module. The inflation agent is ignited by the build up of heat in the igniter.

2. The argon gas expands due to the heat of the ignited inflation agent.
3. The expanding argon gas breaks the discharge barrier, is cooled and filtered by the filter, and then injected 

into the air bag. 

End Of Sie

PRE-TENSIONER SEAT BELT FUNCTION

E5U081057630N01

• When a vehicle is involved in a frontal or frontal offset collision and the front seat belts are buckled, the 

pretensioner seat belt system receives an operation signal from the SAS control module, retracting and 
tightening the belt webbing instantly on the driver and front passenger restraints.

End Of Sie

SIDE AIR BAG 
MODULE

INFLATOR

AIR BAG

AIR BAG

E5U810ZS5107

IGNITOR

INFLATION AGENT

COMBUSTION OF 
INFLATION AGENT

ARGON GAS

ARGON GAS EXPANSION

DISCHARGE BARRIER

TO AIR 
BAG

TO AIR 
BAG

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AIR BAG SYSTEM 

08–10–16

PRE-TENSIONER SEAT BELT CONSTRUCTION/OPERATION

E5U081057630N02

Construction

Operation
Normal (Seat Belt Pretensioners Not Operating)

• Normally, the clutch roller installed to the outer circumference of the spindle sits in the recess of the gear and 

does not interfere with the spindle.

• The gear does not rotate when the belt is pulled or retracted because the spindle and gear are not engaged.

CAP NUT

GAS GENERATOR

CYLINDER

SPINDLE

BASE

PISTON

CLUTCH 
ROLLER

GEAR

COVER

SPRING SEAT

SPRING SHAFT

SPRING

SPRING CASE

EPU810ZT3011