[QUOTE=jst2878;674465]thrust arm bushings to be the culprit. if they are broken then you will have these side effects like shaking wheel
jst2878,,,Thats a thought, i will check on that. I had bad thrust arm bushing on my e39 for quite sometime but never had these effect. i will check them for any indication of leak. thx

jcl; Correct. It is more likely that the brake application at that speed is setting off the vibration, essentially caused by something loose in the steering (tie rod end, or something similar). Unbalanced wheels can make it worse. A warped rotor will cause a pulsation in the pedal, and it will be evident at walking speed. Yesterday 11:33 PM

jcl,,Tie rod ends was my first suspect and i will definitely check those. thx


As for warped rotors, i am scheduling a with dealer but i want to be armed with good assessment of problems.

md,,, thats what makes this problem a big pain. i have a good set of tires, mich mxv4 all around with lots of thread left, only have 44k on the odo.

I've been driving almost every other weeks to nova from so. va and it seems that speed limit on i-95 keeps getting push higher and higher. so to keep up with traffic, most times avrg. speed is about 85-90 (when traffic flows) and i don't feel any vibration whatsoever until i hit the brakes. Don't any clunk whatsoever when turning either, don't hear any detectable.

I've been lucky so far not to hit anyone nor get rear-ended when the need to brake arises so it seems far-fetched that this is unbalance tires/wheels.
And this did not surface until i got the brake job at around 36k miles.

If it turns out to be a warped rotor, then i get lucky since it was r&r on warranty. If its tie-rod ends, links or thrust arm bushing, then warranty may not cover as its wear & tear item ?

I'm scheduling a dealer trip and road force balance check before going to dealer.