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      09-01-2021, 01:55 AM   #28
Bomzara
BMW Fan
Ukraine
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Drives: F15 35iX
Join Date: Nov 2019
Location: UA

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Quote:
Originally Posted by TOPEC View Post
well if u have both the brake and throttle held down and still making that noise then that rules out anything rotating so not the axels. have u checked for any loose heatshield vibrating against something else?
Well, this was the very first idea... Especially when take into attention that the sound comes from warm engine only.

One of the dealerships said that the sound comes from the right engine supporting bracket, it has some kind of a heatshield on top that covers it from the heat coming from the catalytic converter (picture below). They had it (bracket, not the catalytic converter ) wrapped with some kind of thermal wrap for exhaust pipes. With no result, unfortunately, the sound is still here (maybe a little quieter, but not sure).
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Last edited by Bomzara; 09-01-2021 at 02:10 AM..
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