Help with N52 engine noise.

Mashman · 07-20-2018, 08:48 AM

Hello, and thanks to anyone who can help.

Last night when I was driving home, I started to hear a weird noise, it sounded like something flapping around on the front of the car. I wasn't far from home, and no warning light came on.

I noticed that the noise didn't seem to change with RPMs, I didn't feel any loss of power, or vibrations, and the noise continued when I stopped, and took the car out of gear.

The noise appears to me to be coming from, or at least is the loudest, on the passenger side. I took the below video when I got home, the engine was hot, so the fan was going, later today I might take another video with the engine cool, so may be able to hear the noise better.

I have not read for codes yet, will do that later today.

To me, it does not sound metallic, and almost sounds like air. Is it possible that this is related to the PCV valve heater? If the valve melted, could I be hearing air pushed out from the crankcase? Or, are there any vacuum hoses I need to check?

Mashman · 07-20-2018, 09:09 AM

OK, so I was checking out other video's on N52 noises, and this one sounds like the noise I heard. Could my PCV have failed because of PCV valve heater recall problem?

07-20-2018, 08:48 AM	#1
Mashman First Lieutenant 117 Rep 342 Posts Drives: E93 Join Date: Apr 2016 Location: Heaven / TX iTrader: (0)	Help with N52 engine noise. Hello, and thanks to anyone who can help. Last night when I was driving home, I started to hear a weird noise, it sounded like something flapping around on the front of the car. I wasn't far from home, and no warning light came on. I noticed that the noise didn't seem to change with RPMs, I didn't feel any loss of power, or vibrations, and the noise continued when I stopped, and took the car out of gear. The noise appears to me to be coming from, or at least is the loudest, on the passenger side. I took the below video when I got home, the engine was hot, so the fan was going, later today I might take another video with the engine cool, so may be able to hear the noise better. I have not read for codes yet, will do that later today. To me, it does not sound metallic, and almost sounds like air. Is it possible that this is related to the PCV valve heater? If the valve melted, could I be hearing air pushed out from the crankcase? Or, are there any vacuum hoses I need to check? __________________ I keep getting robbed because I leave the front door open.. I could close it but I feel doing so would be a victory for the thieves....
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07-20-2018, 09:09 AM	#2
Mashman First Lieutenant 117 Rep 342 Posts Drives: E93 Join Date: Apr 2016 Location: Heaven / TX iTrader: (0)	OK, so I was checking out other video's on N52 noises, and this one sounds like the noise I heard. Could my PCV have failed because of PCV valve heater recall problem? __________________ I keep getting robbed because I leave the front door open.. I could close it but I feel doing so would be a victory for the thieves....
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