KingHamer

2002.5 C5 A6 2.7t

I got myself into trouble here. I took off my intake manifold to replace the o-rings in the rear coolant line. While reassembly, I broke my PCV valve.. so I bought another.

When I went to reassemble it today, I just don't remember what goes where.. the attached photos show what I need to assemble. If anyone has diagrams that would be great too. I just can't find what I'm looking for.

RED: Comes off the PCV, passenger side.
ORANGE: Comes off the PCV. Small nipple. I assume it goes to Intake Manifold
PINK: Two connections in the back of intake manifold. I know that the hose coming from top of the firewall is one of them, but I don't know which one goes into which hole. I labeled each one as No. 1 and 2.
YELLOW: small nipple pointing downward off back of intake manifold
GREEN: Vacuum line
PURPLE: Hose connection
BLUE: Hose connection

KingHamer

someone has to know something.. Please!

If I just plug them in randomly will that do any serious damage? And would I be able to tell if they were in wrong?

jcman

Not trying to be a Richard but don't you have a vac routing diagram sticker on the hood?

KingHamer

I'll have to check on that, thank you though! I don't recall ever seeing one..

KingHamer

There is a routing diagram but doesn't show anything for what I need :/

Just Me

Do you have a bentley? If still stumped and "no" i can see what i have, but its only the paper "service manual" not the ebahn repair....

KingHamer

I do have the Bentley. I've searched through that whole damn thing and I can't find what I'm looking for.. Tonight I'll go through it page by page. Maybe I'm just looking in the wrong areas but Bentley has nothing on the pcv

jcman

Hope this helps.

KingHamer

I beleive that's for the older model. My second hose on the passenger side just isn't that long. It's short but the replacement I got doesn't look right.. I'm just going to take it to the dealer

Brandon002

Don't look for PCV, look for crankcase ventilation in the Bentley. I don't think Audi refers to it as a PCV and neither does Bentley. Also, for future reference it's always a good idea to take pictures before taking things apart if it's something you've never worked on before.