10-03-2019, 06:06 AM | #1 |
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Steering wheel wobble at 100mph
I have had new discs and pads and new tyres all round and when the car is doing 100mph the steering wheel has a really bad wobble.
I had both fronts re-balanced and its still there. Next step is to have the wheels balanced on a Hunter GSP 9700 machine that is a lot more precise than a regular balancer. The wheel wobbles severely so something is wrong Anyone else had this or used a Hunter machine https://www.hunter.com/wheel-balancers/road-force-elite |
10-03-2019, 09:00 AM | #2 |
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Did you have this issue prior to replacing tires and brakes? I had this issue with my oe pirelli tires and went away after I went with ps4s. Only thing is now I have tire pull to the right. Smh. So I would suspect out of round rim or tire at this point.
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10-03-2019, 07:14 PM | #6 |
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How old are the tires? They need to be road force balanced to find flat spots.... they may need to be replaced if there are flat spots that are not coming out with driving.
Road force balancing to confirm then probably new tires. Its your front tires if you are feeling it in the steering wheel.
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10-03-2019, 08:14 PM | #7 | |
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10-04-2019, 02:29 AM | #8 |
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I know you had your fronts replaced with ps4s's and they are relatively fresh from the worn p zero's you had, so I can't see the problem in the tyres, surely they can't be bad casts from the injection mould.
*Worth checking the front anti roll bar mounting security. |
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10-04-2019, 03:53 AM | #9 |
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10-04-2019, 03:55 AM | #10 | |
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10-05-2019, 08:05 AM | #11 |
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I too had this on my m6, dealer diagnosed warped discs which were replaced under warranty, 99% of the issue fixed, had wheels balanced, the shop identified an ever so slight out of roundness with both front tyres, will live with it until i need new fronts
By the way you should not be doing 100mph |
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10-05-2019, 11:39 AM | #12 |
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All four tyres and the front discs and pads were replaced 1500 miles ago.
I had all four wheels and tyres road force balanced today and they were all balanced incorrectly by the previous tyre fitter, the company today removed 120gsm of weights from before to after, all four wheels are now perfect I also had the Hunter Laser alignment which showed that the rear camber was out by a lot so this was corrected Total cost £115 The car now feels totally different, it puts the power down better as the camber has improved and it feels very smooth and easy to drive and steer. However At 90mph+ I am still getting steering vibration, it’s not as bad as the front wheels are now perfect but something is still out of balance. Having now ruled out the wheels it can go to BMW for potential warranty work as clearly something isn’t right. Pleased that the car is night and day better but annoyed that something else isn’t balanced correctly |
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10-06-2019, 04:11 AM | #14 |
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11-10-2019, 05:15 AM | #15 |
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FWIW - I had the same issue. Firstly it was very slight around 110+ so decided to have the front wheels balanced at the same time as having my rear tyres replaced.
This actually made it 10x worse! As OneExtra I just had the alignment checked, rear cambers out and front right toe out of threshold also. Car drives better than ever, but I get the same wobbling albeit very very feint and at much higher speed... The car has been lowered on Eibachs (not confirmed) by previous owner so that would make sense about bushes being worn. Powerflex would be the obvious choice when uprating bushes; are there any other recommendations? |
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11-10-2019, 05:56 AM | #16 | |
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11-11-2019, 01:33 PM | #17 | |
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11-11-2019, 04:36 PM | #18 |
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11-14-2019, 01:59 AM | #19 |
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11-26-2019, 07:39 AM | #20 |
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OneExtra I had a similar thing on mine (but it was from about 80mph). Does your steering creak at all? BMW replaced the offside wheel bearing and lower control arm in the end to sort it. Was covered under warranty as well
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11-26-2019, 07:54 AM | #21 | |
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Hope you are well mate Not sure as the car has been with BMW for the last 6 weeks getting the seat cover and foam replaced, I will mention it to them though as they have not looked at it yet. |
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11-26-2019, 08:04 AM | #22 | |
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I could replicate mine by putting my foot on the wheel and pushing (as BMW had it and claimed nothing was wrong!) |
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