Knocking sound

tommerf13 · 05-03-2022, 01:46 PM

Featured on BIMMERPOST.com

Noticed a knocking sound today coming from passanger side of car when idling in traffic or driving at low speeds. Anyone have any idea what may be or experienced something similar?

Car i4 M50

deutsch100 · 05-03-2022, 11:16 PM

Quote:

Originally Posted by tommerf13

Noticed a knocking sound today coming from passanger side of car when idling in traffic or driving at low speeds. Anyone have any idea what may be or experienced something similar?

Car i4 M50

I have heard this several times! I did not know if it was the passenger side or the rear of the car. It is very intermittent and never lasts. Perhaps we are feeling and hearing road imperfections? I have never heard it idling ever, but have heard the faint (but noticeable) knock at low speeds. Since it is infrequent and never lasts, I have not given it much thought, especially since my i4 M50 seems near perfect in ever way!! I am so, so 1000% happy with the car!!! It does everything right: comfort, speed, range, tech, fun, safety, enjoyable, amazing styling....

mlello · 05-04-2022, 02:13 AM

It have happend on mine. But just when someone short has been sitting in the passenger seat. It is the belt clip that get caught between the seat and the B pilar and rattels in my case.

tommerf13 · 05-04-2022, 04:47 AM

Had it again this morning - seems to take 10 or 15 minute of driving for it to occur. Is it battery heating up? I took a video of it this morning when car was idling and sent it on to my dealer who is checking it out out for me.

deutsch100 · 05-04-2022, 09:13 AM

Quote:

Originally Posted by mlello

It have happend on mine. But just when someone short has been sitting in the passenger seat. It is the belt clip that get caught between the seat and the B pilar and rattels in my case.

It could totally be this, thank you!! My teen son sometimes sits in the passenger seat, and his seat belt height is different from mine. This used to happen in my e-tron too (the passenger seat belt drove me nuts).

deutsch100 · 05-04-2022, 09:14 AM

Quote:

Originally Posted by tommerf13

Had it again this morning - seems to take 10 or 15 minute of driving for it to occur. Is it battery heating up? I took a video of it this morning when car was idling and sent it on to my dealer who is checking it out out for me.

Keep us posted. Thank you!!

05-03-2022, 01:46 PM	#1
tommerf13 New Member 8 Rep 11 Posts Drives: 435D Xdrive Join Date: Feb 2018 Location: Ireland iTrader: (0)	Knocking sound Featured on BIMMERPOST.com Noticed a knocking sound today coming from passanger side of car when idling in traffic or driving at low speeds. Anyone have any idea what may be or experienced something similar? Car i4 M50
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05-04-2022, 02:13 AM	#3
mlello New Member 17 Rep 18 Posts Drives: BMW i4 M50 & i3 120 Join Date: Sep 2012 Location: NO iTrader: (0)	It have happend on mine. But just when someone short has been sitting in the passenger seat. It is the belt clip that get caught between the seat and the B pilar and rattels in my case.
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05-04-2022, 04:47 AM	#4
tommerf13 New Member 8 Rep 11 Posts Drives: 435D Xdrive Join Date: Feb 2018 Location: Ireland iTrader: (0)	Had it again this morning - seems to take 10 or 15 minute of driving for it to occur. Is it battery heating up? I took a video of it this morning when car was idling and sent it on to my dealer who is checking it out out for me.
	Appreciate 1 deutsch1003942.00 Quote