I just bought a 98 328iS on friday and notice a vibration while driving home. It's noticable around 30mph and up and starts to really be noticable around 65. It feels like it's coming from below the front seats. At first I thought it just need an alignment, but now I'm not sure. Any ideas?
I would go get your tires rotated and balanced. This happens a lot and by fixing your balance, it usually solves the problem. It seems even more obvious that the vibration gets worse at high speeds. Also, an alignment wouldn't hurt at all after you get the rotatation and balance completed. My money is on the balance. Also, check the tread on your tires. From an angle compare the height of each piece of tread. If some tread is higher than other parts, your tires are cupped and need replacing. I had this same problem with the rythmic vibration and a new set of tires, balanced, solved the problem quickly.
does it happen during harder acceleration? it could be your guibo disk, to check take the car out and in second gear punch the gas and if you feel vibrations on acceleration , there is a good possibility that it could be your guibo disk, but dont rule out tranny mounts like skawful said. lastly the and the most obvious solution could be a wheel alignment or possibly one tire has a possible defect.
The vibration is always constant, it doesn't matter if I'm accelerating, costing, or braking. It's really not that harsh of a vibration, it's just enough to be noticable. I setup an appointment to have the tires spin balanced and the alignment checked.
I was just ouside looking at my tires and I noticed that the driverside front tire is old with not much tread left, and it looks like the wear was un-even. All the other tires seem like they are brand new and there are no signs of un-even wear. I think it needs to have that front tire replaced and an alignment.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.