Re: E39 - violent shaking on acceleration/braking

["Al Floer" <cybercord@xxxxxxxxxxx>]

Dave

Most will agree, the shakes like this come from a narrow list of
possibilities.  Let work from the easiest to the hardest (IMHO)

1.    Wheel balance or wheel roundness.  May not cause the speed/brake combo
problem.
2.    Rotor warp.  Did you replace the rotors when you did the brake pads.
If not the rotors may be so thin they overheat and have since warped and
getting worse.
3.    Brake caliber was damaged during the brake job.  Causing rotor over
heating and warping..
4.    Possible suspension problems that need a good mechanic to diagnose
5.    Your in deep pupu and go get a loan.   LOL

Good luck
Al Floer
----- Original Message ----- 
From: "Dave Castine" <davecastine@domain.elided>
To: <bmw-digest@domain.elided>
Sent: Tuesday, July 01, 2003 1:01 PM
Subject: E39 - violent shaking on acceleration/braking


> OK - I getting to the hairy items on my 'to do' list for my car. Sunroof
leak fixed, AC prob diagnosed as a hose, seat/tilt wheel (w/help from Mr.
Cash) fixed - now this shaking. When ever I accelerate pretty aggressively
and I get near 55 mph my steering wheel starts shimmying - pretty badly. It
gets down right scary when I come down from highway speeds 65-75 and hit the
brakes normally for an exit ramp - almost rips the wheel from my hands and
shakes like it was a 72 Duster with bad ball joints!!  The brakes are 5k old
and this shaking was there (albeit not as bad) before I did the brake job
(all OEM parts). Any ideas? Bad strut? Bushing? The car has 58k miles -
thanks in advance...
>
> Dave C
> 98 540/6
> Wakefield, MA
> SBC Yahoo! DSL - Now only $29.95 per month!
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