hey guys, just started tonight, i was driving to the movies with the gf and then i dropped her off and i heard somethin and thought she was making the noise haha. she first thought it was my tire, but i figured my gauge wouldve said it. then i got out, dipped down and there's this inconsistant hissing noise that i heard. it would make the noise about every second.

so is this an exhaust leak? im pretty sure it is but i just wanna varify.

ill most likley just bring it into bmw tommarow. but i just wanna make sure. thanks

 

isnt it your intake? if now must be a leak

 

no, my intake makes that noise when i press the gas..

im saying, i got out of the car and went to my passangers side. and makes the noise under the car. so, must beee

 

Could be a bunch of things. Could be crankcase pressure releasing, could be an a/c hose leaking - but if the car was running, you wouldn't hear any of that.

Likely exhaust otherwise...is it running ok?

 

yes, it runs fine.

but i never have my A/C on. so idk if it would be the hose.

soemtimes it doesnt do it though. usually happens when ive been running my car for a while. so it should be a leak.

and when i usually first start driving my car, when i press the gas, i hear some weird winding noise. kindve similar to the hissing noise when idle. but a little louder.

 

yea..sounds like a leak...