Wabble steering wheel
 

Hello everyone I'm the new guy I drive a 03 e53 and I'm experiencing a wabble in my steering wheel when breaking at 65+ speeds . It's not a shake but a wabble from left to right . It has new wheels and tires . New struts new ball joints new bushings new brake pads and rotors. Can't figure it out any suggestions 🤔:stickpoke

What is a "Wabble"? :dunno: :stickpoke

lol i'm sure he means wobble

Sorry wobble

Okay first question I am going to ask was there a wobble there before you did the new wheels, tires, balls joints etc.? If not then its a result of the new items. Are the new wheels hub centric (meaning fit perfectly centered on the wheel hub?) You say it happens on braking then this could be the rotor or thrust arms or combination of the two.

Yes there was a wobble before all items were replaced

The new wheels are hub centric
It would do it before the new rotors

If it is only when you brake above 65 mph that you have the wobble in the steering wheel, chances are you need to replace the thrust/tension arm, or at the very least the bushing in the thrust arm. I replace the bushing in my X with polyurethane bushings. No wabble or wobble here.

That was the first thing I did

UAN -

What's the frequency on regreasing the polys.
I put polys on about 18 months ago.

I assume you are saying the steering wheel is trying to turn left and right and wabble is wobble.

Was this problem present before you did all the work?

Rotors, new or otherwise, are always suspect when a problem occurs under braking. It only takes about .003 of rotor warp to cause braking issues. Sometimes the rotor is fine but is not flat to the hub or torqued poorly. Rotors can be checked with runout gauge. Sometimes you can feel uneven braking if you brake lightly from 35-40 MPH, an indication a rotor is not true.

Could also be a sticking caliper. If your tires were not road balanced that would be worth a try. Alignment is a possibility. Could be something going on in the suspension, if you didn't do a complete suspension rebuild. Most of the suspension parts have reached the end of their life cycle around 100,000 miles.

If you haven't had an alignment done since the work you need to do that anyway and roadforce balancing is almost always an improvement. I don't know if local autoparts stores rent runout gauges like they do other tools. If so, the tool is easy to work with and all you have to do is remove the tire to check how true a rotor is. As a matter of fact just yesterday I replaced a close to new rotor on my wife's 335 that was out by .0035. Was terrible under braking--all better now.

This is what you posted:

New bushings for the tension arms or the control arms?

I'll get it checked by the brake shop in the morning thanks guys

Rotor warp can cause it, but that is usually felt through the pedal. I think the most likely cause of steering wobble during braking is the lower thrust arm bushing failure.

I had a warped rotors but i didn't feel it on the pedal.. Only felt it on the steering wheel (shaking/vibrating). I changed the rotors and everything went back to normal.. huge difference in driving...