hi, stuart, firstable my english is not good; and i have a car: audi a6 99, and i have a problem with it. i had the "service oil" light on and i checked in the service, after like 2 months i got a "service insp" light on. i just visited your web-page and i did read about insp and i think that i got it, i'll try to fix in few days. also i have other trouble with my car: after when i parked on the p. lot and go into the house, my STORAGE SYSTEM is working, i'm turnig it off but in 3-4 minutes it agan still work. but when i drive to other place car doesn't make this sound. also how can i clear the "air bad" light. i'll thank you for the answer, i dont know if you undertood my english, just let me know if there is something wrong. tnx n bye