Question...

Hello, everybody.
with my A4 3.0 TDI clatters when starting for 1-2 sec. what's in the engine. The workshop changed a chain tensioner two months ago - but that helped only briefly, now clapping again. Audi recommends the replacement of all parts, such as control chains, rollers and tensioners, upon request by the workshop. It's gonna be really expensive. Can one rely on liability for defects? ==References== ==References==
Was genau defekt ist kann mir leider keiner sagen - vielleicht weis hier jemand was.
I want some of the costs stuck with me. I don't really want the cart to be torn apart - there's something left in the end...
I hope you can help me.