vibration at high speeds

[33lop]

Hello. I have an e30 325i Touring. Recently I had my suspension done by my mechanic. Replaced tierods, rackends, shock mounts, bushings, etc. I even had the aluminum control arm replaced with the regular e30 version while outfitting it with an e30 m3 control arm bushing.

On the way home when I reached 80kph, the car started to wiggle. Turns out I just had to have my front wheels balanced. The wiggling disappeared but whenever I reach 110kph, the car starts to vibrate a little. Help!

[mrLEE30]

1. check basics - tyre pressures, wheel nuts tight
2. did you balance the tyres after the suspension work? if not i would normlly say you should have the car re-aligned and all FOUR wheels balanced - if it still vibrates after that then suspect its either in your head or they have installed something incorrectly

mrlee

[peejay]

If you feel the vibration through the steering wheel,then it is usually the front of the car at fault (balancing, pressure etc?)

If you feel it in your seat then its a rear set up problem (could include allignment)

This might at least narrow it down for you>

Good luck

PJ.

[cliffybabe]

id go balancing first off

[E30BeemerLad]

balancing and alignment first.

What wheels are fitted to the car?

[ric325i]

i had this with my 318i.

i bought the car and when it got to 80mph the car wouls shake like hell! thought it was the loose cam but when i changed all the suspension by putting my 325 front legs etc over the vibration stopped.

so i would say take it back the the garage and say you have done this VERY wrong. IMO.

[33lop]

I'm using MiM 1800s with Potenzas (55/15s). Will have the rear tires balanced tomorrow. Will keep you guys posted.