a3 1.4 tfsi - strange noise

guysy

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Apart from the slight chain rattle when starting the car, which I hope will quieten down with the recommendation of a few oil changes close together I have another fault im trying to diagnose.

Its not always at the time same, but I have had it in high gear going up a slight incline, also when changing down and accelerating. And not all the time just randomly.

It sounds like a fast clicking/squealing noise, my initial thoughts where fan/aux belt but I've felt the tension and it seems pretty tight.

Is there anything else I can check, it sounds like a belt noise, I was wondering if it could be turbo related, it comes and goes so fast I cant figure out what is causing it. I realise its impossible to diagnose with no video etc.
I will try and capture it at some point.

Thanks.
 
What do you mean by chain noise quieting down with oil changes?
 

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