[Cloudsurfer]

I realize this is not the Audi forum, but since my father's A6 4.2 is having a major problem, I thought I'd ask some of the other great minds on here some advice.

The other day he started hearing a metallic knocking/ tapping sound. Independent dug into it a bit, first thinking it was something in a head, it turns out one of the connecting rods spun a bearing.

Now, where it gets interesting, is that after a phone call with the dealer, they claim that that Audi does not sell engine internals. So, the option is to either replace the engine with a crate motor from Audi ($7500) or find a salvaged one for roughly $3k-$4k. I can only imagine what labor will be to swap that monster motor in and out of an AWD chassis.

Based on my logical thinking, there has to be a way to repair this that doesn't involve a new motor or pulling the block out of the car. I'm going to talk some guys at the engine shops in town I know, but I don't see why a) a conn rod can't be sourced SOMEWHERE and b) that the crank couldn't be inspected, magnafluxed and re machined if necessary.

I'd really appreciate any input from those who could help on this.

Patrick