I have a pulse during braking at certain speeds. Its not really noticeable around town only on the highway. Limited research suggests that its not warped rotors but potentially worn lower control arm bushings. Its more noticable through the steering wheel with only slight pulsing through the brake pedal.

Car is a 2003 MCS with 75,000 miles. The LCA bushings were replaced under warranty at about 41,000 miles in 2007.

New rotors (Napa Ultrapremium) with Carbotech bobcats were put on at 60,100 miles in October of 2008.

Car has original struts/springs. Where should I begin trouble shooting? Rotors first or Lower control arm bushings? Should the car be getting new struts as routine maintenance for an 8 year old Mini?

An interesting observation was during some really spirited driving last week with some hard braking the pulsation got much worse and then back to normal after cooling off.

Thanks,
Kenny

 

Old shocks will let the entire tire wiggle during hard braking. How would I know? I put in new shock and my issue went away. Only hard braking was my symptom.
I also felt some *** wiggle in long sweeping turns at speed. That too is gone.

 

Did you replace both the struts and the shocks?

 

I kept the old sport springs and just added FSDs. It has been a good experience for me. Stopped the squirly rear end and the wiggle I had while braking hard is gone.