If the SRS MIL is lit, the air bag won't deploy. Low voltage, below 10.1v will trigger the light as will other problems within the system. Check the voltage first. If the car has been wrecked previously and the air bag and crash sensor have been replaced, check to see that the seat belt assemblies have been replaced too as the retractor for the belts are a one-time use item.

One other thing to check, cheap and easy, jiggle the key. A worn ignition tumbler might not be making good contact which might trigger the SRS lamp.

__________________
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.