I've just sold my A3 to my brother, but it's got a quirky noise that I want to make sure is not a major fault.
When you let off the accelerator when there's peak boost there is a high pitched 'coooo' noise, as well as the high pressure air release noise. It sounds ridiculous but the car has always done it. Audi actually put a new turbo on recently, stating it was noisy, but it's still doing the same thing. Is this normal for the 1.9 engine?
When you let off the accelerator when there's peak boost there is a high pitched 'coooo' noise, as well as the high pressure air release noise. It sounds ridiculous but the car has always done it. Audi actually put a new turbo on recently, stating it was noisy, but it's still doing the same thing. Is this normal for the 1.9 engine?