Intake manifold gasket

A6 All/ S6 All
#1

In the process of troubleshooting an issue with my engine, I may remove the top half of the D2 S8 intake manifold to ensure that the variable intake runner flaps are not damaged. There is a gasket that runs around the port openings on the bottom half of the manifold. You can see it outlining the port openings in the pic below

http://i37.photobucket.com/albums/e90/russiandenis/S8%20intake%20vs%20regular/PhotoAug3024216PM.jpg

Does this gasket need to be changed when I put things back together, or is it reusable?

#2

from what I under stand its not ment to be serviced… I would be very careful and maby use some liquid gasket

#3

No personal experience, but I’ve heard a few stories of the actuators being the culprit which would eliminate pulling the intake mani.

#4

Thanks for the tip. That is what I figured. I have three of these spare intakes and all look like they are on the original gasket/seal. Ill check out Liquid Gasket

#5

on the s4 manifolds, that seal gets torn up when the halves are separated, a fuel resistant rtv may work to reseal

#6

Thanks for the tip. I hadn’t heard of that before, and I have had about everything go wrong that can go wrong with these manifolds. Im going to check my seal for a vacuum leak with some propane or starting fluid when the weather gets nicer.

I found some other stuff wrong, so I may not have to pull the manifold apart afterall. When I have some time, I think Ill do a tech article on the A6/S6/S8/Phaeton manifolds, as I have unwittingly become kind of an expert on them.