Clutch and flywheel help!!

Audi a4 BLB 2005

Evening guys, I've just had my clutch flywheel and release bearing replaced. Prior to taking the car in to getting it changed there were no rattling noises or knocks or bangs.

The reason I had it replaced was due to the biting point which was really high and annoying.

After having it changed I realised that I've had a single mass flywheel conversion Installed. The issues I've come across now are that there's this annoying chatter on idle. When the clutch is fully pressed down there is no noise whatsoever. I've read people having issues with chatter on idle but this feels kinda of weird. The mechanic now is putting it down to a worn gearbox! Even though there was no issues whatsoever when the car went in this morning.
According to him even if I installed a dual mass the noise will still be there. I'm absolutely baffled and annoyed!

After taking it to another mechanic his verdict was it's something loose not tightend properly! He's previously done two single mass conversions on cars with no noise at all.

What could it be? Any ideas or things to look out for?

DieselJake said:

Hard to say without a video, go to the garage that fitted it again saying you've had someone else take a look who said it was down to it either being the wrong flywheel or not being tightened properly.

Just out of interest how much did you pay and where did you go?

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I will get a video up tomorrow, I've been back to the same garage three times he's having non of it. Just seems to blame the gearbox when theres actually nothing wrong with it at all. He also did mention the bolts supplied with the kit were incorrect and some how he put some bolts in there! What bolts or what type I have no idea. So I'm left with a car which I don't want to risk driving. Having it stripped down tomorrow hopefully at another place who I trust so I guess I'll have to take it from there. I had it done in burnley Lancashire. Paid 150 in labour.