I am taking off the upper intake manifold and throttle body….. I have two manuals that I have looked at and both don’t seem to help that much. I took off all the screws I could find. Is there one that I might be missing? Thanks

 

well, seeing that i just did this 2 days ago i might be able to help:

5 screws: securing UI manifold to LIM
Losen upper injector fuel hoses (bleed fuel pressure before)
3 vac lines: on front of dynamic chamber
2vac lines: coming from under UIM to right near ACV
1 vac line: running to boost sensor (shock tower)
OMP linkage, throttle linkage/cruise linkage
3 bolts: drivers side engine secure Dynamic chamber to block

I've only done this once. So dont kill me if i'm TOTALLY wrong lol. There may be a couple more vac lines to lossen, you'll have to loosen the coolant hoses running to your BAC, and thermowax "unit" on the back of the TB, unplug your TPS also.


-Markus

"Like i said, i did this a couple nights ago and just rewrote those directions from what i remember." CHEERS! good luck.

 

P.S. if you've never taken this manifold off before you'll have to break the seal that the gasket has made over the years. i stick a flat blade inbetween the UIM and LIM and pryed lightly. I also THOUGHT i forgot a screw but the seal the gasket makes is pretty good.
-Markus

"Dont damage your manifold with a screwdriver" CHEERS!

 

In the future, please pot your car model and year with posts like this.

There are 5 connectors to attach the UIM to the LIM. Depending on year and model, can be nuts and bolts. 4 along the outer edge, 1 long bolt in the center. The long bolt is easily overlooked.

On the opposite side, the drievrs side, on the bracket, there are some nuts/bolts that need to be loosened to get the UIM off the bracket. Easy to overlook.

On the S4 turbo's, there is a hose at the back bottom of the UIM, called the "90 degree hose" in these circuits. These can be a bitch to remove.

Obviously, you need to disconnect TPS, AWS, Vacuum lines, etc.

Post more info and I can be of more help.