2005 Audi A6 Quattro Reading P2004 & P2006
 

My 2005 Audi A6 Quattro has check engine light on with codes P2004 & P2006. Local Audi dealer is recommending replacing left lower intake manifold...Any suggestions on what else it might be? This recommendation was made without looking at the engine. 128K on it and I'm looking to sell it but proving to be difficult with this code issue.

I have the same problem. Did you end up fixing this. Care to share the details?

You both posted in the wrong forum...this is the C7 S7 sub...you need to post it here in the C6 sub: https://www.audiworld.com/forums/a6-...discussion-58/

Also, your codes are from a generic OBD sensor, you really need to pull codes from a VCDS / vagcom scanner for us to get you an useful info vs. the generic stuff you can find anywhere on the web.