11-29-2021, 07:42 AM | #1 |
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G30 lci 135-145km/h vibrations
Hello All
first of all wish you healhy and nice days. I have bought 5.20i (1.6 170hp) which special engine for turkish Market I took car at end of aug. Since first kilometers my car has strong vibrations at 110-150km/h speed. Returned back to the dealer -road balance adjustment ( still continues) - Then changed the tyres with bridgestones (olds are pirelli) Vibrations are cut down. but after 500-600km done the vibration returned back but in different speed areas which as (135-145km/h) not strong as before but the whole car shakes the front passenger seat shaking I see many threads like this but i think something effecting the balance of wheels any advicides or ways before i go to dealer again? Thank you all |
11-29-2021, 08:20 AM | #2 |
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Did you get a road force balance done (not normal balance) it is the first thing you should do as it will tell you if the alloys could be buckled etc. G30 is very badly affected by weight on wheels, how many weights are on your alloys after the balance?
Also what size alloys? 20 or 19 inch? Could it be the guibo? Rubber block between drive shaft and rear differential? Did they install star marked tyres (BMW approved) Also do you have variable dampers( an adaptive button beside the gear stick)? |
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11-29-2021, 09:48 AM | #3 | |
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Hi Cnsky
Thank you for replies -Road force balance didnt done. Only normal balance - I am not sure about that i cant see, need to check at dealer - 18 inch alloys - I can ask to dealer to check guibo. They didnt check it before - Tyres are bridgestone er300 turanza (Starmarked) - No adaptive button on car. Quote:
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11-29-2021, 10:55 AM | #4 |
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I've got this vibration too. Happens between 65-85.
Just switched to non-RFT and it's still there (from OEM star marked tires). Have spacers on that I'm going to switch out and see if that is causing, but same symptoms. Vibration is in the seat and floor - not a tremendous amount of feedback in the steering wheel itself. |
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11-29-2021, 12:11 PM | #5 | |
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11-29-2021, 02:16 PM | #7 | |
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In that case get a road force balance done first and then and check the guibo.
Also make sure you have selected 18inch wheels in I drive. QUOTE=Haradrim;28305614]Hi Cnsky Thank you for replies -Road force balance didnt done. Only normal balance - I am not sure about that i cant see, need to check at dealer - 18 inch alloys - I can ask to dealer to check guibo. They didnt check it before - Tyres are bridgestone er300 turanza (Starmarked) - No adaptive button on car. Quote:
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11-29-2021, 02:21 PM | #8 | |
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Thank you, will choose it and let you know.
I hope the guibo will solve the issue.. Quote:
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11-29-2021, 02:48 PM | #10 |
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Actually i bought brand new car 0km, had this issue very much at the start. Change brand of tyres cut it down and returned back
Also one tip; at 70-80km speed there is little vibration 130-145 much. |
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11-29-2021, 03:05 PM | #11 |
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Well this could help it's an app for your phone I use it to identify vibration locations think it's $99 and you will have it forever works on all cars in the database.
https://vibratesoftware.com Will tell you if it's tyres or drive shaft related immediately. |
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11-29-2021, 07:30 PM | #13 | ||
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11-30-2021, 10:02 AM | #14 |
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I see many people had this issue. I think BMW AG should informed about this and need to find worldwide solution. Its not possible to many people have tyre or alloy problem. There is manufacture based problem.
My dad's Skoda Superb has 1to1 same issue. Skoda couldt find it. I think we cant too.. |
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11-30-2021, 11:37 AM | #15 | |
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Since then I used it with the 759 20" on all season Bridgestone set and recently switched to 664m 19" on winter Pirelli set. None had anymore issues. Worth a look. |
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12-01-2021, 07:38 AM | #16 | |
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What is the direction of the vibration? Was it a backward forward vibration? Or sideways/up-down vibration? First type is caused by transmission tribune and my car has it at certain speeds while accelerating at a constant pace. Latter ones are rim/tyre based. DonanımHaber'deki başlığa da bekleriz bu arada; umarım çözülmüştür sorun
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12-05-2021, 04:21 PM | #17 |
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Went to the dealer,
Tyres are OK rims are ok Shaft is ok car still gives vibrating 135-145km, The dealer said, its road based. This car shakes on every road i dont accept this. They offered me same car for a test drive. Will get it soon and check is it same or not. Then will decide. Until start, g30 lci is very dissatisfied for me. Missing my old f30 lci |
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12-05-2021, 06:40 PM | #18 |
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Have a garage or BMW (preferrably) check the wheels for centricity. They run them up on the balancer and then take the cover off while they are spinning, videoing on a tripod is best to see this with a background that has lines behind it (tiled wall or simialr).
BMW have had alloys before that were not hub centric the 759I had a bad batch for eample. See below a video made by my local BMW garage for me showing my alloys were all bad even though they balanced. BMW refused to change them for me even though this could only be a manfactuirng defect as I had them refubished to try fix the issue so they blamed me but when I researched I found a bad batch did exist. You can clearly see the hop in the wheels. Brand new tyres were also fitted a week before this test. Now maybe it was the tyres but I had the same issue with the set befroe that. I ended up buyng brand new OEM alloys and MPS3 tyres which solved the problem. Last edited by CnSky; 12-05-2021 at 06:47 PM.. |
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12-06-2021, 07:16 AM | #19 | |
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Hello Cnsky
First of all thank you for interest and helping me. I am also think alloys are defect. They didnt change. After i receive similar car i will demand new sets of alloys on my car. will keep you updated. Quote:
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12-06-2021, 09:54 AM | #20 | |
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12-11-2021, 07:29 AM | #22 |
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Update;
Drove 3 diffrent 5 series 2 luxury lines 1 m sport package. All of them has same issue. I think the 2021 Aug after produced cars are have this issue. And no solutino at the moment. Bmw AG should inform about this and have to find solution |
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