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      12-21-2022, 05:06 PM   #265
jad03060
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Make sure your tire pressure is set to the factory recommended pressure based on the tire's current temperature (i.e., what it says in iDrive, not the door panel) for best results.
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      07-15-2023, 04:16 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, 08:52 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, 09:50 AM   #268
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Quote:
Originally Posted by atl_1M View Post
Dropped the car off today, and was able to give a ride to the shop foreman so he could hear the sound. He seemed to agree that the sound was abnormally loud, but said he will try and drive another car with the same specs and tires noise is consistent.

I"m almost certain the sound is due to tire acoustics. I received a loaner with stock 21" wheels on Pirelli Pzero run-flats and while there is a very similar sound, it is probably 1/3 to 1/2 of what I'm hearing and certainly bearable. So my non-run flat 22" tires (Conti PremiumContact6) with lower profile tires is 2 to 3x louder than the 21" run flats. Just doesn't seem right.

Are there other factory tire options for the 22" wheels that I could ask for? Not sure what they're going to come back with, but I'm betting they say the sound is normal.
22 are much loader plus from your video I’m hearing the tire against the expansion joints totally normal
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      07-21-2023, 10:10 AM   #269
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Originally Posted by swainbmw View Post
22 are much loader plus from your video I’m hearing the tire against the expansion joints totally normal
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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      07-21-2023, 10:24 AM   #270
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Originally Posted by atl_1M View Post
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.
Mine does this also and it’s a 2022 maybe there also missing
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      07-21-2023, 10:27 AM   #271
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Quote:
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Mine does this also and it’s a 2022 maybe there also missing
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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      07-21-2023, 11:14 AM   #272
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Originally Posted by atl_1M View Post
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/showparts?id=CR63-USA-12-2019-G05-BMW-X5_40iX&diagId=31_1503
I put it in storage over the winter and I’ve not had it out since last November I’m going to have to get it out and drive it and see if there’s parts are missing
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      12-31-2024, 01:16 PM   #273
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I just ordered a 2025 50e with 20" 740M rims, air suspension etc for delivery in late April in Spain. I do not know if the dampers will be installed, but getting parts to my location is very difficult so I'd like to order them in the US and bring them with me when I return. Where can I find the part numbers to place an order with my US dealer?
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      12-31-2024, 01:26 PM   #274
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Quote:
Originally Posted by f10a View Post
I just ordered a 2025 50e with 20" 740M rims, air suspension etc for delivery in late April in Spain. I do not know if the dampers will be installed, but getting parts to my location is very difficult so I'd like to order them in the US and bring them with me when I return. Where can I find the part numbers to place an order with my US dealer?
Traditionally they were only needed for 22" wheels.
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      12-31-2024, 02:33 PM   #275
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Quote:
Originally Posted by Marty in NY View Post
Traditionally they were only needed for 22" wheels.
Would they help any on 20"?
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      12-31-2024, 02:44 PM   #276
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Quote:
Originally Posted by f10a View Post
Would they help any on 20"?
You can't solve an issue that doesn't exist. I have 20's on my pre LCI, no issue at all and I've never read where anyone installed them on anything other than 22's.
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      12-31-2024, 04:14 PM   #277
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I installed them on my 21s (2025 G05) and the sound is gone. It was so noisy before!
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      01-20-2025, 11:19 PM   #278
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Quote:
Originally Posted by atl_1M View Post
I should be getting my dampeners soon so I'll report back when I've installed them. I'll be able to tell clearly what impact they have on the sound since I've been driving with the drumming sound for 3 months now. Praying they reduce the sound enough to be tolerable.




Did you install it? Was there a separate installation guide when installing it? Or. Can I just install it without worrying about tilting or anything like that?
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      01-21-2025, 10:10 AM   #279
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Anyone with a LCI and 20” tires having this issue? I swapped my RFT before with because they sounded just like this (and I was coming up on 25,000 miles). I went with a pirelli non RFt and the noise is still there. Sounds like a hollow drum.


I’m a B58 sport pkg no air ride.
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      01-21-2025, 01:44 PM   #280
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Quote:
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Did you install it? Was there a separate installation guide when installing it? Or. Can I just install it without worrying about tilting or anything like that?
Yes, installing them resolved my issue. I simply bolted them on and hand tightened as best as I could reaching underneath the car. Just install them horizontally longways.
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      01-21-2025, 09:05 PM   #281
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Quote:
Originally Posted by atl_1M View Post
Yes, installing them resolved my issue. I simply bolted them on and hand tightened as best as I could reaching underneath the car. Just install them horizontally longways.
Thanks. I looked under mine tonight - the spot to mount these are there. I’m going to make a service appointment and push them to pay for and install. If I get push back I’ll take the plunge. It’s honestly the only thing that I don’t like about this car. It sounds like I’m driving in a Altima.
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      01-24-2025, 02:26 PM   #282
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Took mine to the dealer -they said they were not supposed to be on the car from the factory so they wouldn't cover them. I also walked the lot and lookout 3 2025's - none of them had the part installed. maybe it was a cost cutting thing.... I went ahead and order to see if it solved my issue.
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