2004 a4 quattro 6spd
Just had a ECS Ra4 clutch conversion installed today. Now I have a horrible rattle sounds kinda like a bad bearing On the test drive I only heard it at low rpm under load. Back at the shop you could hear it while reving it would go away with the clutch engaged. Shop was closing so had no time to take anything back apart. Any ideas what might be wrong.
Install was done at a trusted shop car is still there.