MG ZR Series Owner's Manual page 27

HOW THE AIRBAG SRS OPERATES
In the event of a collision, the airbag control unit monitors the rate
of deceleration or acceleration induced by the collision, to
determine whether the airbag(s) should be deployed.
Operation of the airbag SRS is dependent entirely on the rate at
which the car's passenger compartment changes speed as a result of
a collision. The circumstances affecting different collisions (vehicle
speed, angle of impact, type and size of object hit, for example),
vary considerably and will affect the rate of acceleration or
deceleration accordingly.
It follows, therefore, that significant superficial damage can occur
without the airbags deploying or, conversely, that a relatively small
amount of structural damage may cause the airbags to be deployed.
In the case of a severe frontal collision, both airbags and seat belt
pre-tensioners will be deployed.
NOTE: The airbag SRS is not designed to operate as a result of rear
collisions, minor frontal or side impacts, or if the car overturns; nor will it
operate as a result of heavy braking or driving over bumps and potholes.
An inflating airbag can cause facial abrasions and other
injuries. Minimise the risk of injury by ensuring that front seat
occupants are wearing their seat belts and are seated correctly, with
the seat as far back as is practical.
Airbag SRS
HB0243
Airbag inflation is virtually instantaneous and occurs with
considerable force, accompanied by a loud noise. The inflated bag,
together with the seat belt restraint system, limit the movement of
a front seat occupant, thereby reducing the risk of injury to the
head and upper torso.
NOTE: After inflation, some airbag components are hot - DO NOT
touch until they have cooled.
When an airbag inflates, a fine powder is released. This is not an
indication of a malfunction, however, the powder may cause
irritation to the skin and should be thoroughly flushed from the
eyes and any cuts or abrasions of the skin. After inflation, an airbag
will deflate immediately, providing a gradual cushioning effect for
the occupant and ensuring the driver's forward vision is not
obscured.
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