Hi Guys, I got my 2000 S80 6 years ago at 55k mileage, and now it's 90k mileage. I haven't never changed brakes, just wonder when is the right time to change brakes? at what mileage? should I change four of them all together?

Thanks a bunch!

 

You change the brakes when it is necessary. There is no specific mileage. Look at the brakes and if they are low then replace them.