can anyone help me with a question to my noisy turbo.When I drive my car which is an Audi A4 sline 170 bhp on a 56 plate . Basically when I change from 2nd to 3rd I get a vibration noise similar to the noise a clutch release bearing makes when it is faulty. This noise is also there when I rev the car hard then release the throttle and the engine is slowing down .The Audi garage where I bought the car from which is called Stirling Audi say this is normal. Personally I don't believe them.Thanks James