NEED Help From all X5 gurus and gods.........Shaking Badly

[SLX5]

Ok here is the whole story
One day I got off the interstate, the vehicle started skaing as I applied the brakes. Came to a stop sign, and was driving about 45mph and the car started shaking. Stopped at a friends home and on the way back got to 45mph no shaking at all. But within the last two weeks, everytime I got to 45mph or when braking at that speed it was shaking.

I realized I had a stuck caliper. So I ended up replacing both the front calipers. I replaced both the tension bushings, and lower control arms. I didn't replace the tension arm ball joints since they were very stiff. Got an alignment done yesterday. The car drives straight, but the second I tap the brakes, the steering wheel shakes violently (Left/Right) yet my brake pedal does not pulsate at all. I replaced rotors with drilled rotors and ceramic brake pads less than 10K ago. Also chnanged the sway end links; I am completely lost and very very frustated with the damn vehicle right now. Any suggestion..........

[killcrap]

sounds like warped rotors to me

[E53BimmerJunkie]

What year/model and how many miles?

Are the wheels and tires factory? Are there any dents in the wheels or imperfections in the tires?

[SLX5]

Originally Posted by killcrap

sounds like warped rotors to me

Killcrap, thats what I was afraid of as well, but would you feel a pulsation of the brake pedal? The steering wheel literally moves back (left/right) easily 1/4 to 1/2 inch each way

[SLX5]

Originally Posted by E53BimmerJunkie

What year/model and how many miles?

Are the wheels and tires factory? Are there any dents in the wheels or imperfections in the tires?

I have 18" BMW wheels, with Continental 285/50/R18. No imperfections on the tires, had them balanced last week, alignment yesterday.

[1stE53]

two things I would check first; rotors could be warped. The holes in them make them more susceptible to warping, second I would check the shocks. I heard somewhere that this may happen with badly worn shocks (not sure if this is true though).

[SLX5]

the handling in the car is pretty good, so I would think the shocks are good. Will check on the rotors tmorrow morning

[motordavid]

The net is full of "warped rotors" myth debunking.
not saying it could not possibly be "warped" rotors, but...

I would go back and get a very careful re-balance on tires/wheel run out.
And, then have a good Indie check out your brake re-do and front
suspension fixes.

This brake shudder symptom is insidious, and from a page of threads on
topic, it has never been methodically diagnosed/"fixed", imo, via reporting,
including my own experience with. My point is the fixes, including my own,
are anecdotal, circumstantial and I do not recall a step by step list of repairs
that defined the "Aha" this is the fix, conclusion.
But, good luck.
GL, mD

[dpgx5]

did you replace the thrust arm ball joint? part15 , RealOEM.com BMW E53 X5 4.4i Frnt axle support,wishbone/tension strut

[SLX5]

Originally Posted by dpgx5

did you replace the thrust arm ball joint? part15 , RealOEM.com BMW E53 X5 4.4i Frnt axle support,wishbone/tension strut

I didn't replace it even though I ordered the part becuase it was very tight on both ends. There was zero play