Fitment For 2008-2013 Mazda 3 For 2008-2015 Mazda 5 When to Replace Brake Calipers? Over time in normal driving conditions, the heat generated from the braking system can weaken and break down seals inside the calipers. They can become rusty, contaminated or dirty, and start to leak brake fluid if you don’t drive regularly. However, you should have your brakes checked immediately if you experience any of the following: .
