72 12 ... Firing gas generators

WARNING: This page is about a different car, the 2008 BMW 760Li, 2007 BMW 760Li, 2006 BMW 760i, 2006 BMW 760Li, and 2005 BMW 760i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

62 1 270
62 1 351
62 1 352

Installation locations of sensors for gas generators:

Fig 1: Sensors For Gas Generators Components

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The satellites of the individual gas generators must be exposed before the adapter lead is connected.

WARNING: Disconnect battery .

Conform with safety precautions !

Incorrect handling may result in the gas generators being triggered and thereby cause injury.

Following gas generators must be fired (max. equipment):

Fig 2: Gas Generators Components

Courtesy of BMW OF NORTH AMERICA, INC.

Connection overview of adapter lead 62 1 351 in vehicle on left for LHD models:

ADAPTER LEAD IN VEHICLE ON LEFT FOR LHD MODELS REFERENCE CHART

Plug	Sensor / module	Airbag activation
A	Module, driver's airbag	Driver's airbag, stages 1 and 2
B	Sensor, A-pillar	Head airbag
C	Sensor, A-pillar	Knee airbag
D	Sensor, B-pillar	Belt force limiter, front
E	Not used	Not used
F	Sensor, driver's seat	Head restraint, front
G	Sensor, driver's seat	Belt tensioner, front
H	Sensor, front door	Side airbag, front

Connection overview of adapter lead 62 1 351 in vehicle on right for LHD models:

ADAPTER LEAD IN VEHICLE ON LEFT FOR LHD MODELS REFERENCE CHART

Plug	Sensor	Airbag activation
A	Not used	Not used
B	Sensor, A-pillar	Head airbag
C	Sensor, A-pillar	Knee airbag Passenger airbag, stages 1 and 2
D	Sensor, B-pillar	Belt force limiter
E	Sensor, B-pillar	Safety battery terminal
F	Sensor, front passenger seat	Head restraint, front
G	Sensor, front passenger seat	Belt tensioner, front
H	Sensor, front door	Side airbag, front

Connection overview of adapter lead 62 1 352 in vehicle at rear:

ADAPTER LEAD IN VEHICLE AT REAR REFERENCE CHART

Plug	Sensor	Airbag activation
I	Sensor, rear seat	Side airbag, rear right
K	Sensor, rear seat	Side airbag, rear left Belt tensioner, rear left and right

Connecting adapter lead to driver's airbag:

Unlock driver's airbag.

Disconnect plug connection.

Remove airbag unit and connect adapter lead for firing airbag.

WARNING: Airbag unit must be fastened again to steering wheel after adapter lead has been connected.

Do not damage adapter lead when doing so.

An airbag unit that is not fastened in accordance with regulations can lead to injury when fired!

Fig 3: Removing Airbag Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Connecting adapter lead to sensor, driver's/front passenger seat:

Operate seat in upwards direction.

Remove top rail trim at front.

Disconnect plug connections (1) from sensor (3) and connect adapter lead 62 1 351.

If necessary, mark strap with chalk at opening of B-pillar. In this way, belt tension can be checked after firing.

Fig 4: Plug Connections, Sensor And Removal Directions

Courtesy of BMW OF NORTH AMERICA, INC.

Connecting adapter lead to sensor, front door, left and right:

Remove door trim .

Disconnect plug connection (1) from sensor (3).

Connect adapter lead 62 1 351.

WARNING: Door trim must be screwed down again after adapter lead has been connected.

Fig 5: Plug Connection, Mounting Screws And Adapter Lead Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Connecting adapter lead to A-pillar sensor, left and right:

Expose A-pillar sensor.

Disconnect plug connection (1) from sensor (4) and connect adapter lead 62 1 351.

Fig 6: Plug Connection And A-Pillar Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Connecting adapter lead to B-pillar sensor, left and right:

Expose B-pillar sensor.

Move sensor (2) in B-pillar downwards.

Disconnect plug connection (1) from B-pillar sensor (2) and connect adapter lead 62 1 351.

Fig 7: Disconnecting Plug Connection From B-Pillar Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Connecting adapter lead to rear-seat sensor:

Expose rear-seat sensor.

Disconnect plug connections (2) from sensor (3) and connect adapter lead 62 1 352.

Airbag firing :

Do not conduct firing simultaneously but rather in a staggered sequence (front left, front right, rear).
To trigger the airbags, connect adapter leads 62 1 351 and 62 1 352 to firing device 62 1 270.
Connect firing device 62 1 270 to a 12 V power source.
Press switch on firing device to fire airbags.
In event of no firing: refer to "NOTES ON SCRAPPING BMW VEHICLES (FIRING FAILURE SECTION) ".

Fig 8: Identifying Plug Connection And Rear Seat Sensor
Courtesy of BMW OF NORTH AMERICA, INC.