Hi, I recomend Glassons Garrage in Camborne. Iv taken all my cars there since moving here 12 years ago and they have become friends due to a shared interest in Motorsport. The are a 3rd maybe even 4th generation family business and VERY technical mechanics. When my Discovery 3 had a Turbo failure they fought the warranty company for me when said warranty company refused to pay. The car wasn't sold by them, by the way (Glassons dont do car sales). Iv trusted them with my Lotus Elise, S200, Freelander, Discovery 3, and my A2.
They have been looking after an A2 for someone local for years, it was in recently for a back axel replacement as I saw it there when I had my MOT done and was happy to see it all fixed when I went for the retest.
Coincidently both the father and son drive Audis (S3 and S4 Estate) if I recall.
PS Its got a Cornish oven pasty shop next door and they are the best pasties in West Cornwall IMO (lets not argue on that)