Groves on my front disk rotors ???

My dealer is south county BMW in El Cajon, they are really good to their customers there, IMO.

Yup they said if there is any noise or pulling or shimmy they would replace everything right away no worries.

This is my first BMW. I have never had a car with groves in the rotor before so I was worried. The good thing is I was NOT aware that brake pads are covered under the 4/50k warranty, so now I'm going to use them and not baby them lol.

I have never had a car or motorcycle where the disks were not nicely polished after break in until my first 550i. It stops RIGHT NOW with no pull or squeal. There are some light grooves and the finish is coarser than I was expecting after 2k miles. But... If it works this well I have no issue! The metallurgy of disks is a science in itself to balance stopping power with wear and the same with pad composition.

Stop well and prosper.

that'll buff right out...

Originally Posted by Griffin 27

I finally got some pictures of my rotor.

The first two are from the front passenger side rotor, the one I was asking you guys about.

The last one which looks totally normal is from my passenger rear rotor. Again the back two are smooth.

When I get some time I will definitely take it in the dealer.

I had a 2013 328xi loaner with maybe 100kms on the clock and the rears were screwed up like that too from the get-go. I wonder if it could happen from driving with parking brake engaged?