[dsrsrs]

Hi,

I recently changed all 4 rotors/pads with Powerstop kit. I cleaned and lubrificated everything...After 500km, the front is perfect, but both rear rotors look like this;



Should I take the rear apart again or it will sit properly after few hundreds more km ? Maybe there's trash between the rotor and hub? It's my first brake job on my e90...

thank for your advises.

[feuer]

You need to bleed the system and do a proper brake bed-in procedure which I assume you have not.

[dsrsrs]

I pumped the brake pedal and removed extra brake fluid + I did a proper brake bed in procedure. Do I really need to bleed the system after a brake change ??? I did not open the system or lines...

[Yangorang]

I always just change my brake fluid every two years. Never had to do any bleeding or anything special after brake changes and wear has always been perfectly even. I do replace my rubber guide bushings every time though.

Is it showing the same pattern on the inner rotor surface as well?

[dsrsrs]

I had an oil change last year, but I dont think it has anything to do with that...

I don't know if it's has the same pattern on the inner side of the rotor. I haven't check yet, but I think I'll have to remove everything to see that.

[feuer]

If is hardware issue, guide bushings for exampe, the wear pattern on the inside would be opposite, on the inner portion of the rotor, however, I highly doubt that is the problem. I would re-bleed the system and then re bed-in the brakes.