E39 air bag light has come on

My air bag light has come on so first thing I do is Google e39 air bag and lots of posts about a recall for faulty air bags exploding and shrapnel hurting drivers. Lots of these were in the States.

I phone my local dealer in Dorchester in Dorset and service guy says no recalls for your car. We can have the car in for an appraisal and see what the problem is and give it a wash for £159. My car is immaculate so giving it a wash isn’t a priority.

Any ideas and have any of you experienced this?

I’v got RAC cover, is it something they can just turn off ?

I spoke to BMW Customer Services in Farnborough a couple of hours ago and the lady there said my car isn’t and hasn’t been due any recalls.
Five years ago I changed the steering wheel to a M Sport wheel but it’s never presented a problem before.