Dodgy pipe keeps popping out?!?!

[Giggz]

The pipe in question is just by the throttle body on an M20 325i.As pictured below is the lovely throttle body.


Here is the dodgy pipe which i have no idea what it is...wild guess is it has something to do with the...injection??


Now,say i have driven for about 20 minutes. After the drive i pop the bonnet. You are 100% guranteed that this pipe will have been forced out of position somehow as pictured below. I am preety sure to that this has a direct effect on my dodgy idleing problems!



Can i get a replacement? How much are they? What is this pipe for?

Your advise is very much appreciated.

[dazleeds]

loctite
silicon
something along them lines should seal it up Daz

or just change the pipe from a breakere

[Jimbob]

That's a breather pipe, I wouldn't worry about the top one so much, just make sure the bottom one is OK.

I did a thread a while back, the early throttle body only has one hole for the breather (the bottom one) whilst the later throttle body has a hole for 2. I ended up drilling up a hole for the top pipe - and it does exactly the same as what yours does. Just seal it with something, it's not like you'll take it off again (unless you get a Zone throttle body).

[Giggz]

Cool.

But whats it for buddy?

[Giggz]

Actually i was thinking of getting BBTB very soon so maybe i should just stick with it for now?

Thanks mate!

[Hyperion]

yeah some sort of gasket glue or something. what you dudes think, is that designed to come out?

[Hyperion]

hell i'm always so late when trying to put in my 2 cents.....

[Giggz]

Judging by the way the car idles when its popped back in,i would say its designed to stay put.

[Giggz]

Better late than never buddy!

Besides you replying from distance too

[dazleeds]

has prob just worn where its been in and out a few times

it should have small ridges on the sides that help keep it in properly Daz

[Sooty]

This pipe is a common cause of air leaks thus causing dodgy idling. It should be sealed in.

Anything that can form an air-tight seal will do as long as it is solid enough.
I would recommend Loctite or similar.

[touring170]

m8 dont use silicone or any liquid sealer bad news there use plumbers ptfe tape thats what i did and it worked a treat and totally reversible no mess and no sealant getting into your intake now thats gonna hurt your engine guv?

[A1BMW325iSport]

i used hermetite, never had any leaks after that

[Giggz]

Nice one guys.

Thanks for the ideas.

I think i will proberbly go for the tape option as i dont want to permenently seal it on just yet as the BBTB is in the piplines. Makes for easy access no?