Brake disc is this a problem
 

Hi 1 of my rear disc is starting to show a groove on the surface should i get my dealer to have a look at it ?

Scoring on the rotor is not good. I would inform the dealer.

This issue is covered by varranty (in Latvia). It hapens.

i have the same thing on a front rotor... but have not had any strange feeling while braking.... should I just leave it be for now? is it really a big deal? i only have 5,000 miles on the car.

definitely take it to the dealer

What do you think???

how long is the warranty on the brake discs not the full 3 yrs is it ?

if they think they can blame it on foreign matter getting stuck between the disc and rotor they won't cover it at all


if it's from the pad having a hard chunk in it and you get it to the dealer before it wears away they should cover it provided the brake pads are genuine regardless of whether the rotor is out of warranty or not, because it's a defective part causing damage to the rotor

In the US the brakes/rotors are covered for the first 4/50K no matter what happened, they would be replaced (foreign matter or not). Coverage in other countries may be different.

what's the fine print on that 4/50k cover? how could it be no matter what happened?

Who knows, tell ya right now I had rotors changed out on my X5 about a half a dozen times in 50K miles for oddities. Build a strong relationship with your SA and you can get nearly anything done under warranty.

I could be wrong, but I wouldn't make a special trip to the dealer for that unless it gets worse. That seems to be very minimal and I don't see how it is going to affect how your X stops or anything. I would just mention it the next time you are at the dealer for service unless you just have nothing to do and feel like waiting or driving a loaner for some reason.

Because there are two distinct 4/50 covers in the US. There is the warranty, for defective parts and manufacturing (same as the rest of the world, although the term may vary). Then, there is the maintenance program that covers wear-out of all components, including brake pads, clutch disks, wiper blades, etc. The maintenance plan for wear out has nothing to do with warranty, but the two coverages are often blurred together by owners.

You can experience early-hour defective rotors, but not several times over an extended period, that is more likely related to usage.

I had the same thing in both my front rotors at less than 2,000Kms on the clock and with deeper groove! This is a serious mnufacturing defect as my dealer told me. They replaced both rotors and pads, a full brake job in half a day.. All under warranty. IT's a known problem, take it ti your dealer!

thanks JCL, makes sense