Re: 328is Steering Wheel shimmy

["Gary Derian" <gderian@xxxxxxxxxxxx>]

By shimmy do you mean the wheel turns left-right?  If so, you have a dynamic
unbalance or a bent wheel or bad tire.  Try rotating the tires to see if
things change.  If braking makes it worse, also look at the rotors.

Gary Derian <gderian@domain.elided>

> Sam Choi was having a problem with his brake pedal pulsing and steering
> wheel shimmying and the group diagnosis was brake rotors.  One response in
> particular caught my attention - you don't necessarily feel the pedal
> pulsing when you have a rotor issue.  Got me to thinking about my own
"wheel
> shimmy".
>
> The car: 1997 328is, manual trans, stock everything.
> The symptoms: Steering wheel will "shimmy" at virtually all speeds,
> sometimes violently under braking, with zero pedal pulsing, no pulling to
> one side of the other, and no grab-slip-grab-slip that one would associate
> with the rotors wobbling.  The steering wheel does not bounce up and down
> (ala unbalanced wheel).  Rate of shimmy is relative to speed.
>
> Rotors?
>
> John Virnig
> '97 328is
>
>
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