I need to know how do I replace the Airbag on my 1993 240 sedan? Does it unbolt from the back ? and what do I need to shut down to keep the system from deploying the Airbag? And How do I reset the SRS the cover on the Airbag is sunroted and is cracked and you can see the airbag...Please help......

 

If the light is off it will stay off.
Disconnect the battery first.
Then you shouldneed a Long T-30 bit and a ratchet to loosen the screws from the back side of the steering wheel.