where is it coming from? possibly exhaust leak, whens the last time you checked your flex pipe?

 

Without any further information to go on... I'm guessing flex pipe.

 

the sound is coming from the front. Is this where the flex pipe is?

 

i also say flex pipe. same thing happened to me its right under the passanger seat or around that area

 

is this a hard fix, or do i have to take it in?

 

While it's idling, get down by your front passenger side door and look underneath the car for your exhaust pipe. The flex pipe is the part of it that looks like it's braided. Feel around the pipe (AROUND! DO NOT *TOUCH*!!!) for little puffs of air. If you feel any, then you've got a leak.

Good excuse to buy a performance exhaust... Or you can just get it fixed at a muffler shop.

 

I was just literally going to start a thread about this exact problem I'm also having with my car.

It just started happening on my car recently. I figured there was probably an exhaust leak somewhere, but didn't know where. I snapped a pic of my flex pipe, and I also got a video of the noise (although it's harder to hear in the video than in real life). I also snapped a pic of the back end of the exhaust cuz the part where the tube meets that box (excuse my technical terms) also looks kinda sketchy.

Video:


I actually think it sounds kinda cool and kinda wanna leave it until I have funds for a performance exhaust. Is this a serious problem that should be fixed asap?

 

Mine just started making the exhaust leak sound a couple days ago, factory issue? :wrench:

Confirmed for exhaust leak right were the cat attaches to the flex piece on my drivers side.

 

Exhaust leaks can cause some performance loss, though they may sound neat. Usually if it sounds "sputtery", it's from the manifold/flex pipe areas (in my experience), but you could have one further back at the muffler/resinator, which could be around the seams where parts join. Metal corrodes with time, and when water and other elements come in contact with it (especially when hot inside from exhaust gasses), things happen faster. I'd get it fixed, but I don't think it's a must do right now. Probably save up for a performance exhaust of some sort would be a good idea, even if it only makes you feel better about the "performance gain".

 

I'd also have some concern about leaked exhaust gasses making their way into the cabin. On the 1.8T, at least, the cabin air intake is above and behind the flex pipe. I don't think exhaust would come in with the car moving, but better safe than sorry.

 

so that's why i've been feeling sluggish lately. thanks.

 

I've determined my farting noise is due to this clamped sleeve which is completely worn out.

This picture is actually a week or two old, and within that time, my car grew OBNOXIOUSLY louder, so after peering under it today, that sleeve has slipped completely off one side and left the other side dangling. The clamps themselves are shot and look burned to a crisp.

I'll be getting a new one soon, just wanted to know what was the diameter of that particular section of pipe?

 

55mm

 

Just ordered. Thank you.

 

Finally had some time today. Installed this:

This is the old one. Turns out the clamps had simply rusted and cracked and the thing was just sliding around on mah tubes. At one point it slid all the way to the rear part of the exhaust leaving the downpipe tube just dangling, and my car OBNOXIOUSLY loud.

Easy fix, took 5 minutes.