Strange sound…any idea?

BMW FOREVER · 06-22-2022, 12:07 AM

Not a M5 but posting it here as well in case anyone here knows what the sound could be. I usually start hearing this sound after the car warms up…it comes in waves as you can hear. Seems to be coming from the right side of the car. If I bend down to look under the car the sound seems louder.

Changing the gear from park to drive seems to change the sound slightly….any idea what it can be? My car is a 535i xdrive with 38k miles on it.

The first video shows the location where it seems to be the loudest but the sound is much clearer in the second video. It sounds like someone is brushing their teeth….

https://youtube.com/shorts/J3bUe_HNmDY?feature=share

M5_Raz · 06-22-2022, 12:30 AM

Sounds normal to me for a car with direct injection and a timing chain.

BMW FOREVER · 06-22-2022, 12:32 AM

Quote:

Originally Posted by M5_Raz

Sounds normal to me for a car with direct injection and a timing chain.

Did you hear the sound in the 2nd clip? Hear it from maybe the midpoint of the video. Definitely not a sound I heard in my previous F10 which was a N20 even!

M5_Raz · 06-22-2022, 12:37 AM

I did, sounds like normal intake noises or air going through (maybe a vacuum line close to where you have the camera).

No codes or power loss? I'd say it's all normal.

When I first got my direct injected w/ timing chain V6 VW engine, I was hearing similar noises and took it to a professional. He laughed and asked me if I really brought it in just for that

06-22-2022, 12:07 AM	#1
BMW FOREVER First Lieutenant 164 Rep 392 Posts Drives: 2014 535i Xdrive Join Date: Feb 2014 Location: Toronto iTrader: (0)	Strange sound…any idea? Not a M5 but posting it here as well in case anyone here knows what the sound could be. I usually start hearing this sound after the car warms up…it comes in waves as you can hear. Seems to be coming from the right side of the car. If I bend down to look under the car the sound seems louder. Changing the gear from park to drive seems to change the sound slightly….any idea what it can be? My car is a 535i xdrive with 38k miles on it. The first video shows the location where it seems to be the loudest but the sound is much clearer in the second video. It sounds like someone is brushing their teeth…. https://youtube.com/shorts/J3bUe_HNmDY?feature=share
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06-22-2022, 12:30 AM	#2
M5_Raz Lieutenant 514 Rep 538 Posts Drives: BMW M5 Join Date: Aug 2020 Location: Bay Area, California iTrader: (0)	Sounds normal to me for a car with direct injection and a timing chain.
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06-22-2022, 12:37 AM	#4
M5_Raz Lieutenant 514 Rep 538 Posts Drives: BMW M5 Join Date: Aug 2020 Location: Bay Area, California iTrader: (0)	I did, sounds like normal intake noises or air going through (maybe a vacuum line close to where you have the camera). No codes or power loss? I'd say it's all normal. When I first got my direct injected w/ timing chain V6 VW engine, I was hearing similar noises and took it to a professional. He laughed and asked me if I really brought it in just for that
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