Brand New S3 8P - Weird Grating Noise
Great to join the forum, unfortunately my first post is a bit of bad news for me I wish i'd come across the forum in happier circumstances. I purchased my first Audi brand new back in Jan 2013 and have covered around 2500 miles in it. At about 2200 I started hearing a very odd grating noise, here are the symptoms:
It only happens when the engine is cold (not up to temp), when I lift off the accelerator. Once its up to temp. it stops. It does it in every gear. You can sometimes hear it when I down shift through the gears as it changes. It does not happen when I rev the engine in neutral and lift off the gas. I can't tell if its coming from the engine or the gear box.
Does anyone have any idea what it may be? Audi have had my car back for two weeks no and are "still investigating".
Thanks for any advice - I hope I get my lovely audi back soon! :-)