Hissing/PSHHH sound after 3k rpm with no mods

armani12 · 06-15-2013, 06:00 PM

Hi everyone,

Today I jumped on the highway and when I floored it, I heard this pshhhh sound ... similar to gas escaping from a gas tank or air coming out of a tire at high rate. It only happens after 3k, but the orange half engine light came out right after. I must point that I didn't feel any loss of power or anything different in the car. My car is being under many repairs in the last 3 months. First it was the serpentine belt that broke after 2 days of being replaced. Then I had a oil leak which kept soaking the belt and other components... the dealer finally changed the oil pan after many different repairs were tried. I noticed that lately my turbo wastegates were rattling much louder than before at low rpms. The video below is from another member, but I have this same sound which plays after 0:02s. Has anyone have this problem? Thank you in advance

http://www.e90post.com/forums/showthread.php?t=716084

PS- I must add that I'm completely stock.

SQ5 · 06-15-2013, 06:02 PM

Sounds like a turbo issue. Maybe a leak?

06-15-2013, 06:00 PM	#1
armani12 Peruanito 8 Rep 37 Posts Drives: 08' AW 335i coupe Join Date: Mar 2012 Location: West Springfield, MA iTrader: (0)	Hissing/PSHHH sound after 3k rpm with no mods Hi everyone, Today I jumped on the highway and when I floored it, I heard this pshhhh sound ... similar to gas escaping from a gas tank or air coming out of a tire at high rate. It only happens after 3k, but the orange half engine light came out right after. I must point that I didn't feel any loss of power or anything different in the car. My car is being under many repairs in the last 3 months. First it was the serpentine belt that broke after 2 days of being replaced. Then I had a oil leak which kept soaking the belt and other components... the dealer finally changed the oil pan after many different repairs were tried. I noticed that lately my turbo wastegates were rattling much louder than before at low rpms. The video below is from another member, but I have this same sound which plays after 0:02s. Has anyone have this problem? Thank you in advance http://www.e90post.com/forums/showthread.php?t=716084 PS- I must add that I'm completely stock. Last edited by armani12; 06-15-2013 at 06:03 PM.. Reason: video not playing
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06-15-2013, 06:02 PM	#2
SQ5 Second Lieutenant 19 Rep 286 Posts Drives: Audi R8 V10 Gen 2, Tesla Plaid Join Date: Sep 2008 Location: GA and MI iTrader: (2)	Sounds like a turbo issue. Maybe a leak?
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