The PCV host that comes off the driver side valve cover is completely shot. I wrapped it in some rubber tape until I can get this figured out. I was wondering if there’s a replacement available?
I found the one on ECS, still seem steep for a small piece of plastic…
Audi C6 S6 V10 5.2L Engine Emissions - 07L103209C - pCV vent hose (07L 103 209 C) (ecstuning.com)
Check at audi dealership, i buy this one long ago and it was not so expensive
Check ebay AUDI A6 4F C6 PCV Vent Hose 07L103209C NEW GENUINE
I used a silicone hose to rebuild the one I had. I used this video as reference. I’ll try to see if I have a pic of it but i gave that car to my brother
The costs on the various hoses are generally due to rarity. I see inflation hasn’t done us any favors in that regard. eBay.co.uk, or ebay.de will most likely be the best way to find them for the lowest price. Last resort would be Google Shopping. I found a number of NLA parts that way.