07-15-2023, 03:16 AM | #266 |
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On my M50i with air suspension I noticed the rumbling on 22” Continentals non RFT immediately at speeds over 100 kph. As I didn’t have this with my 21” winter set, I finally decided to swap the 742M 22”s for a set of 741M with Pirelli RFT.
Result: rumbling gone (I also have acoustic glass) and the ride comfort is about the same. Bonus is that I actually prefer the design of the 741M over the 742M. |
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07-21-2023, 07:52 AM | #267 |
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I've had really good luck with my Pirelli PZ4's over the last year and a half... nice and quiet the entire time (21 inch setup)... but due to the cost of replacing these tires I am thinking of going to a squared 20 inch setup... What is a reasonable price to pay for a set of 740M wheels?
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07-21-2023, 08:50 AM | #268 | |
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Drives: 2022 x5 40!
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07-21-2023, 09:10 AM | #269 |
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This is an old thread but please read the top of my first post for the resolution. The sound was definitely not normal. BMW forgot to install the dampeners and that was causing the sound. That fixed my problem. Crazy that the techs and even regional engineer couldn’t figure it out when I was able to determine I was missing it just by looking at the parts diagram online.
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1230vani652.50 |
07-21-2023, 09:24 AM | #270 | |
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07-21-2023, 09:27 AM | #271 |
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Look under your car and make sure you have part 13 in the diagram below. Mine was missing but my build is way back in Jan 2020
https://www.realoem.com/bmw/enUS/sho...diagId=31_1503 |
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swainbmw525.50 |
07-21-2023, 10:14 AM | #272 | |
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