Hi everyone. 2009 C30 T5. 178k. Purchased at auction and upon start up it idles quietly. Perfectly. Accelerate and there is a horrible racket. It's hard to tell if the noise is coming from the top or bottom of the engine. I drained the oil out of it and there was plenty, just black but no noticeable pieces of metal. I put new oil in and it's still very noisy. Could you take a look/listen and give me your opinion? Thanks in advance.