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Home Â» Car Maintenance Â» How Often Should You Replace Brake Pads. How Often Should You Replace Brake Pads Posted on Autos.com Editor. in Car Maintenance. on October 7, 2013. A lot of factors need to be considered to know when to replace the brake pads in your car. Manufacturers design the braking system according to the weight and specifications of a particular model car, and some models require a brake pad change when the mileage is in excess of 35,000.
Depending on your carâs brake system, it may use between 4-8 brake pads. When you step on the brake pedal, the master cylinder sends fluid under pressure to the brake calipers (which hold the brake pads). The caliper presses the brake pad against the brake rotor, causing friction that slows down the car.During normal usage of the brakes, brake pads wear out and become thinner. If the thickness of brake pads is less than 3mm, it is time to change the pads.Depending on where you drive (city driving tends to wear pads out quicker) brake pads usually last between 30,000-35,000 miles. Some vehicles (eg. BMWâs) are equipped with a low-pad-warning system.In these vehicles, you will also need to replace the brake sensors as part of the brake pad service.he caliper presses the brake pad against the brake rotor, causing friction that slows down the car. During normal usage of the brakes, brake pads wear out and become thinner. If the thickness of brake pads is less than 3mm, it is time to change the pads.