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08-02-2017, 10:37 AM | #23 | |
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10-26-2017, 07:14 AM | #24 |
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So im still having issues.
Ive had my rear tyres changed from runflat to non runflat. the place has used the newest hunter kit but the RF is at 40 and 45nm . this is the only place in my country who has this kit and not matter how much i have asked if they can reduce it they say that if the machine said its perfect then its perfect. i then argued that the road force value could be minimized and they said they dont have a feature of getting it to set lower. i seen the screen when it was done and the tyre didnt have any defects or anything. Im told my front control arms need changed and they wont entertain it until this is done to prove its not the culprit but i explained its only gotten a bit worse since the tyre change. i explained the car is sensitive etc and i just want the RF lower but they wont entertain it as soon as its in the green. anything you can suggest? |
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10-26-2017, 09:10 AM | #25 | |
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09-27-2019, 12:20 PM | #26 | |
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Anyone have surefire ways of banishing this scourge? Today i've had 4 wheel Hunter laser alignment and Road Force balance done near Glasgow to no avail. RFB values were about 35 but no other defects. A search on the interwebs doesn't shed any light on how to reduce the RFB down to sub 10. Can anyone advise?
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09-30-2019, 11:25 AM | #27 | |
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In my experience, you will get a significantly better ride if you can manage to get these values below 10lbs per tire/wheel. In your case, this may take a new set of tires. Please post what tires you currently have and what wheels as well. |
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10-02-2019, 06:58 AM | #28 |
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The guy at the place seemed to know what he was doing. Explained that the RFB tries to even out high/low spots so can only assume did the right job.
I've got 351M style wheels with Michelin Primacy 3 RFTs all round. The fronts are 245/40/R19 & the rear are 275/35/R19 Its a possibility about bent wheels due to the low profile of the rubber and the horrible roads around here. Wouldn't the RFB machine highlight a rent rim? Luckily I am due for new tyres on the back and i'm thinking of going with a set of Dunlop SP Sport Maxx (non-RFT) as i've had them on a Jaguar prev and they did well. I'm also thinking about moving to a square setup to help with rotation but not really too sure about the best tyre sizes for that.
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10-02-2019, 02:43 PM | #29 | |
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Also, on changing tires, I hope you are thinking about changing all four. If not, mixing runflats and non-runflats is a recipe for disaster. Good luck!
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10-07-2019, 03:43 AM | #30 |
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Did a low speed drive and couldn't feel much if any wobbles in wheel.
Phoned the shop and spoke with the tech and they're confident that wheels weren't buckled. Any recommendations for what size tyre will fit the wheels on a square setup?
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10-07-2019, 09:46 AM | #31 |
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245/40/19 is an OE size on all four corners for a non-staggered setup. This is what my F10 came with from the factory. Having said that, you may have staggered wheels, since you are running wider tires on the rear. If so, I don't see much advantage in running a square tire setup unless you change your wheels too.
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10-29-2019, 04:24 PM | #32 | |
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As far as I can see the rims are 8.5 front & 9 rear. Tyre size guides say a 245 would fit the rim but can I replace the 275/35/19 with a 245/40/19 and have it be ok? Diameter changes from 675.1mm(275/35) to 678.6mm (245/40). I would usually just go with the same sizes as whats on the car but i've got a good deal on the tyres saving about £300 if I go for 245s
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10-29-2019, 06:06 PM | #33 |
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Sure. In fact, since you would be running the same tires on all four corners, the diameters front / back would be the same so there would not be any issues for an xDrive as well. Since the rear tire (245/40/19) will be on a 9" wide wheel, it will probably appear to be a bit more stretched than the front on a 8.5" wide wheel, but I'm sure it is workable and the only drawback you might face would be cosmetic.
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05-23-2021, 05:36 AM | #34 |
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Did this wobble ever get concluded?
Hi Beemers
I know this thread is old but... Just bought a 520d 2015 B47 F10, 19" 351 alloys last week. Same wobble from the seat between 75 and 85 and a bit under braking. Wheels balanced, pressures 32 front 33 rear. Wheel man mentioned very slight buckle on one rear but insignificant. Bridgestone Turanza ER300 245/40R19 on fronts Bridgestone Turanza T005 275/35R19 on rears Big lips on brake discs but no warnings Loads of meat on pads Did anybody put their finger on the cause of the wobble? Thanks Daren |
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05-23-2021, 09:54 AM | #35 |
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Have you tried road force tire balance, or just the normal tire balance? That is about the speed range where I had a shimmy. Road force balance solved it.
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05-23-2021, 11:35 AM | #36 |
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05-24-2021, 06:34 AM | #37 | |
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Road force balance is your only way to see if it can run, without being straightened or replaced. |
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06-04-2021, 08:06 PM | #38 |
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09-25-2021, 12:39 PM | #39 | |
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Are you stating thats the issue for the motorway speeds wobble in the front seats? Daren
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09-25-2021, 12:46 PM | #40 | |
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Did you ever get the solution to this? I have exactly the same symptoms on my 520d, 2015, 55k. I'm getting new rear discs and pads this Wednesday, hopeful. Someone else mentioned the rear diff bush can be shot by 55k Thanks Daren
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09-25-2021, 12:54 PM | #41 | |
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I had the wheels checked, all dead straight
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09-25-2021, 12:56 PM | #42 |
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I've had new Pilot Sport 4s BMW XL ZP all round, still wobbles
New Borg & Beck discs and pads on front to get rid of the wobbles under braking at the front I'm having new discs and pads on the rear this Wednesday. Same brand again If I take a wheel off, should I clean the hub/disc face of all grease before i put the wheel back or should it always be greased?
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