Ticking noise

Bloom_435i · 11-14-2021, 03:15 PM

Does anyone know what this sound could be. My car is a 2015 435i.

https://youtube.com/shorts/OTkXoBrqui0?feature=share

No lights on dash and car runs fine. This noise happens when I have a boost leak

5w20 · 11-14-2021, 06:52 PM

Quote:

Originally Posted by Bloom_435i

Does anyone know what this sound could be. My car is a 2015 435i.

https://youtube.com/shorts/OTkXoBrqui0?feature=share

No lights on dash and car runs fine. This noise happens when I have a boost leak

HPFP? Put your hand on it and see if you can feel the tapping.

Bloom_435i · 11-14-2021, 09:03 PM

Quote:

Originally Posted by 5w20

Quote:

Originally Posted by Bloom_435i

Does anyone know what this sound could be. My car is a 2015 435i.

https://youtube.com/shorts/OTkXoBrqui0?feature=share

No lights on dash and car runs fine. This noise happens when I have a boost leak

HPFP? Put your hand on it and see if you can feel the tapping.

I did, it's coming from the area in the video

SuperLomi · 11-15-2021, 10:58 AM

Idler pully/tensioner is right there. Tensioner doesn't seem to be moving around too much (hard to tell because cameras is moving), but it could be looseness in the idler?

Bloom_435i · 11-15-2021, 11:20 AM

Quote:

Originally Posted by SuperLomi

Idler pully/tensioner is right there. Tensioner doesn't seem to be moving around too much (hard to tell because cameras is moving), but it could be looseness in the idler?

I would think that but it comes and goes when I have a boost leak. I just did a log and I can confirm my leak is back. So I'll going to fix it and I'll up this post if it's gone.

ClevelandBeemer · 11-19-2021, 05:52 PM

Bloom_435i Can you take a better, more stable, video of the belt tensioner. Ideally with some additional light. Just to rule out the area. Also take a stable video from the turbo side as well as the intake side of the engine.

If the leak is related to the boost leak you could have something a piece of the charge air piping that has broken off and made its way into the intake. I recommend not running the car more than you have to until a thorough inspection can be completed.

11-14-2021, 03:15 PM	#1
Bloom_435i Private First Class 24 Rep 166 Posts Drives: 15' 435i xdrive Join Date: Jan 2021 Location: Hopewell New York iTrader: (1)	Does anyone know what this sound could be. My car is a 2015 435i. https://youtube.com/shorts/OTkXoBrqui0?feature=share No lights on dash and car runs fine. This noise happens when I have a boost leak
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11-15-2021, 10:58 AM	#4
SuperLomi First Lieutenant 204 Rep 383 Posts Drives: 2013 335i M-Sport Join Date: Nov 2020 Location: KY iTrader: (0)	Idler pully/tensioner is right there. Tensioner doesn't seem to be moving around too much (hard to tell because cameras is moving), but it could be looseness in the idler?
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11-19-2021, 05:52 PM	#6
ClevelandBeemer Second Lieutenant 94 Rep 262 Posts Drives: 2013 BMW 335i M-Sport Join Date: Jul 2014 Location: Cleveland, OH iTrader: (0) Garage List 2021 BMW X5 45e [0.00] 2013 335i [0.00] 2015 BMW S1000R [0.00]	Bloom_435i Can you take a better, more stable, video of the belt tensioner. Ideally with some additional light. Just to rule out the area. Also take a stable video from the turbo side as well as the intake side of the engine. If the leak is related to the boost leak you could have something a piece of the charge air piping that has broken off and made its way into the intake. I recommend not running the car more than you have to until a thorough inspection can be completed.
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