05-29-2024, 09:03 AM | #419 |
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Maybe a cheaper option than getting all new suspension is putting a Quickjack lift in your garage and lifting the car overnight, every night....LOL.
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05-31-2024, 08:12 AM | #420 | |
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05-31-2024, 09:41 AM | #421 | |
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Maybe someone who has not taken their car into their dealer can ask if they can swap out with the 3-series part instead another 2-series damper… but I highly doubt a dealer would do that for many reasons, one being it’s not a direct part number match. |
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06-03-2024, 07:37 PM | #422 |
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I just picked up a '23 M240ix and I hear this noise coming from the front.
Very faint hollow thump. It's definitely annoying like something is wrong. Another thread mentioned dealer replaced Strut Support Bearing for the fix Last edited by inevitab1e; 06-03-2024 at 08:26 PM.. |
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06-27-2024, 10:46 AM | #423 |
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Wow, just read 20 pages of this thread...
And I have the EXACT same problem on my 2025 G82 M4, and the noise was actually not there at all on my 2024 G82 M4! Bringing it in for the 1,200 mile break in service next week and have mentioned it to them. |
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06-27-2024, 11:51 AM | #424 | |
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You might all be chasing different sounds. |
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06-30-2024, 06:00 PM | #425 |
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Weird. I have the right rear thump. Been there since I bought the car. Getting tired of hoping BMW cares. Ready to ramp it up with the dealer. So looking for the best way to get them to recognize what is already really obvious to many of us. Even when the radio is on. So I turned the radio off to see if it could be heard better. I know. I know. This is bizarre - the thump seems to largely disappear. Might just be the road I was on when I did it, but ---- Any similar experience out there? Isn't there an artificial enhancement for sound tied to performance setting? Could it be normal suspension sounds being piped through the speaker in the Performance setting, but somehow exaggerated. More than happy to take the hits for a stupid idea. But has the solution been found yet??
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07-04-2024, 12:43 AM | #426 |
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If you disable Active Sound and turn off the sound system, you can still hear it. Be sure to do that so they don’t think it’s coming from the speakers. It does sound a little like a gentle burble except it happens when you’re rolling over a slight bump. Setting the dampers to the hardest setting will make it much more noticeable.
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07-05-2024, 04:15 PM | #427 |
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Guys. The culprit has been found. It’s the design of the actual rear suspension with electronic dampening. Myself as well as a couple other members of the forum have torn apart their entire rear ends. It’s the suspension.
There is no fix besides going with aftermarket suspension (Bilstein Evo SE). You can try the lottery and hope for a part that is quieter, or try the equivalent 3-series part (different part number) but there is no official fix. BMW is not willing to entertain investigating further since its “just a nuisance noise” and is considered “normal operation”. A lot of us contacted customer relations and made no progress |
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07-05-2024, 05:04 PM | #428 | |
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I bought into the BMW brand because they still retain the sporty factor I like, but I thought for the price premium, we could expect a premium build to match. I've already been vocal, but this car is likely the worst for noises since brand new that I have ever owned. Even worse, even though I'm sure I have the thump, it's not the noise that annoys me the worst. Intermittent dash rattle, snap-crackle-pop HVAC vents, plapping sounds in the back, sunroof creaks over driveways, noisy door seals. I've lost faith in the brand. I'm moving away from new and shiny and going used after this. I'm too critical of new cars, they just don't live up to my expectations. I don't know if I'm unlucky, or just unreasonable. |
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07-05-2024, 05:39 PM | #429 | |
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Definitely would be skeptical about getting another new BMW unfortunately… although it seems like there are issues with all new cars from any brand |
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07-05-2024, 05:58 PM | #430 | |
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And yes, I have scoured many message boards with alternative cars I would have chosen: Porsches, Lexus LC500, Audi, etc.; you can find noise complaints on every one. So it may be that I'm just way too picky. I just don't understand why I ride in someone else's car and wonder why it's so quiet. The other factor is the stiff chassis and suspension. So maybe my fault for choosing the sporty car. |
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07-05-2024, 06:03 PM | #431 | |
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07-19-2024, 10:02 AM | #432 |
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Recently took delivery of an M2 and had a right rear clink over bumps since day 1. Just finished my break in service and had them check out the noise as well. Ended up being break pads bouncing around in the caliper.
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09-05-2024, 09:15 AM | #433 | |
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Regarding the discussion about knocking (I don't know if it hasn't already been written about here), at the Polish BMW dealership they say it's a known problem in other models and it's a matter of electronic adjustment of the clearance on the shock absorber valves. In the adaptive suspension there is a problem with the control of the valves responsible for damping adjustment. Apparently the only way is to wait for new software to help. |
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09-06-2024, 07:13 PM | #434 |
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I cannot speak on his M2, but I can promise that on my G42 it is not the brake pads.
Your description of a valve control issue in the rear shocks sounds potentially promising. Hopefully a software update can solve it. |
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09-07-2024, 07:10 AM | #435 | |
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Used for sure. Especially as stock improves and depreciation has become a thing again 😂 |
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09-07-2024, 09:41 AM | #436 | |
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Mine has been very quiet all summer. I still hear it every now and then but it’s totally livable. But I know as soon as it gets cold the thump will be coming back. My Bilsteins are “supposed” to ship by end of month. We’ll see! |
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09-09-2024, 01:16 PM | #437 |
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I've maintained from the beginning that the thumping sounded like a dead strut. So I think the comment that it is a software issue makes a lot of sense to me. But.... If installing the Bilsteins makes the sound go away, and the existing BMW software is what is driving them when you plug the car to the Bilsteins, then it seems it would more be an issue with the Monroe strut being defective.
Seems it only happens on the M240, the sound varies with the demand put on the strut (Eco Plus, Comfort, Sport), and it goes away when the Monroe is taken out of the equation. And if it's the strut, it would cost BMW more to fix it than just a software update. And following the money, and the fact BMW doesn't appear to care or plan to do anything, I'd go with the most expensive fix that they are playing blind to - bad strut that can't handle the pressure at the higher suspension settings. And coming out of the COVID, logistics, manufacturing, and transportation issues impacting profits, BMW is looking to recover their bottom line - not fix this issue. And if true, it doesn't say much about their commitment to the 'ultimate driver's car.' I still love my 2023, but the thumping rattling noise from the back end just isn't the BMW quality I've enjoyed since I started buying them in the mid 1980s. |
09-13-2024, 08:43 PM | #438 |
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Id imagine that there would be some sort of contract in place between the vehicle builders and suppliers and where the liability goes in the scenario of defective parts. I would personally tend to believe more that BMW just isn't really paying attention to this issue more so than sweeping it under the rug. Even if it cost BMW the warranty labor rate to replace them, that isn't too bad for the opporunity to get your car in the shop and find things to upsell you and keep your foot in the door at the dealership looking at new cars and building up your overall relationship... instead of the opposite; building internalized resent for the brand over a stupid shock absorber.
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Yesterday, 06:45 AM | #439 | |
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Yesterday, 07:18 AM | #440 |
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I mentioned this to my SA when I brought my car in for the first year service. I could tell that he obviously does not follow Bimmerpost by the look on his face. He told me that the "diagnostic team" would not be able to get to it for three days. He told me I could leave the car and offered me an EV with a 250 range. I declined his offer. So the thump keeps on coming.
Last edited by J-RO; Yesterday at 04:54 PM.. |
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