Following your answer about garages replacing aircon compressors when all that was needed was a new clutch, mine failed a week ago. I took the car, a 10-year-old Passat, to our local independent garage with a squeal from the compressor. He diagnosed the clutch on the compressor and I left it with him for the day. I have just had the bill and he 'sublet' the work out, I have been charged for a clutch bearing at £14, and £65 labour to fix it. I can't say I have been overcharged.