Strange sound when parked????
 

I have a C350 and after I've parked the car I occasionally notice a weird sound coming from the front end of the vehicle, even after it's been parked for two hours! It's kind of a "pssst" sound that occurs about every 15 seconds. Is this normal? Maybe some sort of pressure relief? I looked in the manual and didn't find any explanation. It isn't losing and fluids and the gauges indicate that everything is good. :nix:

nope this does not look normal. But i will check out mine as well next time for that kinda sound after parking it.

no sound here after i drove it for 30 mins and parked it.

The Benz

I'm hearing a very faint intermittent sound from within my C300 that I've not been able to track down. I haven't tried listening for it from the outside.

I was able to determine that the car doesn't have to be running to hear it.

I'll see if I can do some detective work today as I'm taking it in for its 1,000-3000 checkup tomorrow and would like it addressed if its an issue.

I only hear it when I'm outside of the car, and it's not every time. It sounds like it's coming from just below the emblem in the grill. I thought the 60's were catching up with me but my buddy heard it too.

:rolf:

hey man, we all pass gas every know and then. don't make such a big deal out of it.

Noises
 

<<I have a C350 and after I've parked the car I occasionally notice a weird sound>>

My '01 C320 made this high pitched squeeeek from under the hood (at the same intervals you are experiencing) after shutdown for the entire 6.5 years I owned it. I only heard it in the garage because it's quiet in there.

It's undoubtedly the AC system and is entirely normal in my opinion