Thanks :) I'll get a some quotes for the rust bubble, air bag wise I know it is the seat pad sensor the srs system thinks someone is always in the seat. Clutch wise, no i'm not riding the clutch, foot is no where near the pedal, also no juddering/ slipping. On average I do 16 miles a day which is a bit stop start in traffic. its quite possible it could be the brakes smelling as I replaced the rear pads, and o/s/f caliper, she drives well so I think i'm just over worrying, I plan to just see how it goes, if It starts smelling again I shall investigate further. Thank you for the feed back :)