10-31-2019, 05:45 PM | #45 |
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11-04-2019, 08:19 AM | #46 |
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I'm glad to see that others are having the same issue. I replaced the OE run-flats with Pirelli AS tires, and that did not correct the problem. The shop that installed the tires does a road force balance. I figured that there is no point in me bringing the car to BMW, as they will likely blame the tires, since they are not OE.
It's a light vibration, worse on cement roads or any road with ripples in the pavement. After reading this thread, I'm starting to think that it's a combination of factors, one of which is the car design. I've had issues in the past with tires that just don't like to stay balanced, and I was back at the tire shop every few thousand miles getting them balanced again as the rubber wore off. It's a pain.
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11-04-2019, 01:59 PM | #48 |
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I’ve spoken to another BMW dealer which has confirmed the problem. They have seen a number of g30/31 having this problem. According to the dealer they have done almost everything on these cars (New tyres/ wheels, balancing, alignment etc) which seems to help but the problem keeps coming back. Unfortunately they don’t have a clue ...
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11-04-2019, 02:09 PM | #49 |
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I have heard that certain BMW OEM rims shipped with at least G30/G31s have been bent from the factory (multiple cases) causing vibrations. Could it be so that a bent rim can be temporarily balanced well but that would make the problem appear again after a short period of time? Does anyone have this problem with aftermarket rims?
My car is going to the dealer tomorrow morning for the whole day and I am getting a loaner. I will report here if anything was found. |
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11-04-2019, 02:39 PM | #50 | |
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I have same problem with my aftermarked rims (19 dotz misano with dunlop sport rt), so I don’t think its the oem rims. |
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11-04-2019, 06:31 PM | #51 |
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I just purchased a new 540i (last week) and it also has a vibration that begins at 65-70 and does not go away until about 90. I have a theory and would like to see what front bumper you all have. As we know there is the sport line (base) bumper and the m style bumper. I have the sport line bumper. The reason I ask is that on my previous car a Tesla, when they updated the front bumpers in 2016 we had a terrible vibration due to wind resonance. I am thinking this may be a similar issue as it presents in a similar fashion with no rhyme or reason. The M style bumper has what appears to be larger openings that allow more air to passthrough, the sport line bumper does not appear to have as much. Just a thought.
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11-05-2019, 02:57 AM | #52 | |
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11-05-2019, 07:13 AM | #54 |
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That makes me wonder if the grill shutters being open or closed would have an effect. Too bad we can't control that manually to verify.
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11-05-2019, 10:14 AM | #55 | |
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I tend to agree with highlandpete as two Independent dealers have confirmed the problem. The key issue is the wheel assembly interacting in an adverse way with the suspension. This explains why the problem keeps coming back even after a full alignment/ optimization of the car. My vibrations were gone until I swapped back to summertyres. The director of the Company that I’m Working for have also had the problem. Several alignments, balancing etc. didn’t help until the dealer replaced the tyres with RFT contisport which removed the problem. Conclusion, oppose to others the RFT’s has had a damping affect on the resonans in his case. |
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11-05-2019, 12:12 PM | #56 | |
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This does not, natch, affect those who have this problem with RFT, but maybe just exacerbates it.
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11-05-2019, 01:11 PM | #57 |
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Hi Guys,
I've a G31 520D from 2017 with the same problem. Changed recently my tyres and kept the same brand and model (Pirelli Cinturato P7 245/45 R18 100 y (*) MOE) and the car started vibrating between 110 km/h and 160 km/h mainly. At 120 km/h its the worst velocity!!! Just talked to the official BMW dealer and they told me that this is a common problem with G30/31 because they are "very sensitive"!!! The solution is a dynamic balancing of the weals, where they balance the wheels and tyre but add weight to it to simulate the weight of the car on the wheels. Not sure what it means, but the maximum tolerance allowed is 3kg!!! Will schedule the procedure and will let you know the results and if possible post some photos and videos. The BMW dealer also mentioned that before this solution, they have dismounted almost all the rear of another G30 until they solved with this solution of the dynamic balancing and with information coming from the BMW factory in Germany. Therefore the problem is already known. My tyres unfortunately are not even (although new) and the tyre shop where I've mounted the tyres told me that this is common and especially in Run flat tyre and Pirelli because they are very hard tyres. With time this tends to improve, but would purchase another brand if I new this before. Glad to help. Cheers, Jul Last edited by Jul74; 11-05-2019 at 01:17 PM.. |
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11-05-2019, 01:52 PM | #58 | |
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11-05-2019, 01:55 PM | #59 |
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Reading this thread is making me have second thoughts about getting a G30 next year! :
I wonder if they'll resolve this issue with the LCI?
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11-05-2019, 02:03 PM | #60 | |
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11-05-2019, 02:12 PM | #61 | |
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11-05-2019, 04:11 PM | #62 |
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Unfortunately, not yet. I took the car to the dealer (different one I’ve been to before) in the morning. They could not replicate the problem on a test drive (obviously) because you cannot do faster than 100km/h in Finland during winter. The service salesman honestly said me ’why does it bother at 130km/h, you are never allowed to drive that fast’. I was kinda shocked, and replied, what if I took the car to autobahn, would the vibs then magically disappear?
However, they are keeping my car overnight and doing some more tests and driving tomorrow. I got an entry level 530e xDrive as a loaner, and done 300km on it so far. Not a single vibration has been present, butter smooth ride. Wish mine was like this too. This is on some standard 18 inch alloys and Nokian Hakkapeliitta non-studded winter tires. |
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11-06-2019, 02:03 AM | #63 |
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Never had any vibration issues.
M Sport with passive M Sport suspension, 20" Michelin PS4S + 19" RFT winter set up - no vibrations in either set up. I have 15mm spacers front and rear for around 2 years, did not have any issues before or after at any speed.
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11-08-2019, 01:27 PM | #64 |
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I never had enough of a vibration issue to complain or pinpoint anything. However since switching to Michelin A/S3+ non-runflat, my M550i is noticeably smoother. Note the tires were road-force balanced. My only complaint is they're a bit noisy. A service tech I was talking with acknowledged that is a common complaint with the G30 and was glad to hear mine is fine at this time with the non-runflats.
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11-12-2019, 05:58 AM | #65 | ||
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This post may also be of interest to others, who are trying to get to the bottom of this issue. I wonder... came across the following the other evening, I see BMW are adding a vibration damper to X5 & X7 models when fitting optional (larger rims) above 19". To me, this says something about the vibrations being in the dynamics of the wheels. Note the warning comment on upgrading wheels. Quote:
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11-12-2019, 06:33 AM | #66 | |||
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