1 Series E87 130i (N52) 5-door
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Head airbag, left
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Right-hand head airbag
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Belt tensioner, front left
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Belt tensioner, front right
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Safety battery terminal
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Belt tensioner, rear left
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Belt tensioner, rear right
Driver and front-passenger airbag
The driver and front-passenger airbag reduces the risk of injury to the occupants' head and chest area in
the event of a head-on collision.
The driver airbag is located under the centre pad on the steering wheel. The front-passenger airbag is
integrated into the instrument panel above the glove box.
The gas generators in the airbags are triggered as needed, depending on the severity of the accident.
Side airbag
For the first time, BMW has installed side airbags in the side sections of the front seat backrests.
The relocation into the backrest side section has the advantage that there are no longer airbags in the
doors, allowing the engineers more freedom when designing the doors.
Both versions -airbags in doors and airbags in seats- satisfy the strict legal requirements with regard to
occupant safety to the same degree.
Side airbags reduce the risk of injury to the occupants' pelvis and torso in the event of a side impact.
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Head airbag
The head airbag prevents the head making direct contact with the side structure or an object which
penetrates the vehicle.
[more]
Belt tensioners
As a rule, the seat belt will not be sitting completely tight around the body: This seat belt slack makes sure
that the occupants have adequate comfort of movement.
To prevent the negative effect that this loose belt can have, the pyrotechnic seat-belt tensioner will pull the
belt buckle down by several centimetres in the event of a frontal or rear-end collision. This pulls the seat
belt tight into the occupant's shoulder and pelvis.
Safety battery terminal
Depending on the severity of the accident, the safety battery terminal disconnects the starter motor and the
alternator from the battery. This minimises the risk of short circuits in a serious accident. The trigger signal
comes from the MRS control unit.
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Airbag indicator lamp
The airbag warning lamp shows the operational capability of the multiple restraint system (MRS). The airbag
indicator lamp in the instrument cluster is activated by the MRS control unit (via the K-CAN).
After the ignition is switched on, the MRS performs a self test. During this time, the airbag indicator lamp will light
up (approximately 3 to 5 seconds). When the system is ready for operation, the airbag indicator lamp goes out.
If the instrument cluster has not received a CAN message, the airbag indicator lamp will light up.
If, during the self test or while the vehicle is in motion, the MRS control unit detects an existing fault or one that
has been stored, the airbag warning lamp remains on.
If the MRS detects a fault, the operational capability is partially maintained, subject to the following:
SBT Multiple restraint system 5 E87, E90, E91, E92
BMW AG - TIS
27.01.2013 20:50
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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