when should brakes both front and back, be changed on a 2009 Mazda 3?
There is no set mileage because every one has different driving habits and there are several different grades of brake pads. Most brake pads have wear indicators that make a high pitched squealing noise when the pads are ready to be replaced. The best is to give them a visual inspection on a regular schedule. Another item that is frequently missed is changing the brake fluid. This again depends on your driving habits and conditions, but a good indicator is once the fluid in the reservoir starts to show a slight brown color it a good idea to change it.
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