CPM

Thanks I am going for that then and thanks for the link I will let you know how I get on it may help others if it fix's it if not then more on to next bit

Thanks you Trevor I have read the definition of the code on BMW codes and one says left side and another drivers side ?

i wonder is the code for right hand drive drivers side or left hand drive drivers side ? so i am not sure now what side air bag is showing the fault code

but thank you for your help 

Well I need a bit of help .my air bag light is on ( 6 cabriolet E64 )and I have a code of 93AC Left side air bag

any one know of most common issue that I could start to look for ? 

Thanks  CPM