brakedust

[MVincken]

Hi,

I just recently found this problem, because i`m not washing my car everyweek anymore.
but i notice that my left front wheel gets darker from the brakedust than my right front wheel.
is it normal that it gets pretty dark after 300-600 miles?
or the other way around, that my right front wheel doesn´t get this black.

last week i jacked up the car and noticed that de frontright isn´t turning totally free, but it´s not like the car wants to turn left on the highway.

so my question to you:
is my LF wheel braking to much or isn´t running free.
or is my RF wheel not braking enough...

I let the bmw shop perform a braketest with the yearly vehicle inspection and the difference betweek wheels wasn´t that bad

by the way, when i swapped to ventilated brakediscs I didnt change the calipers. i hope that isn´t the problem because i beleive i throwed them away

[jlevie]

This could be a case of a sticking caliper which won't affect affect braking performance but can cause dragging of the pads. The fix for that is a rebuild (or replacement) of the calipers and new soft lines. If the car has ATE calipers, the guide bushings and perhaps the guide bolts may need to be replaced.