[bkreigsr]

Cross post from the 5 series pbbs technical forum;
I appreciate any feedback offered - I know there's a bunch of members here familiar with the 535.

We took our 2013, 535 on a 1,100 mile (round trip) this month and the front end started to vibrate under braking.

Kinda felt like wheel bearings, but the dealership checked them last month....
Kinda felt like one of the front rotors was warped...
Kinda felt like the anti-lock brakes were acting up...

Some of the braking from highway speed (75-80) was particularly violent - like the ball joints were loose. (they are not - I checked that today in the driveway)
Around town the car is very well-behaved.

Is there a common area of concern in these models that would generate this symptom?

(The car only has 43,000 miles - always dealer maintained.)

Thanks in advance
Bill K