how often to do a brake flush
Mercedes Benz, for example, recommends a brake flush every two years or 20,000 miles. Toyota says brake flushes never need to be done, while Lexus, which is owned by Toyota and is similarly made, recommends it be performed every three years or 30,000 miles.
Some mechanics say that replacing brake fluid every three years will keep the braking system in top condition. It doesnât mention that in my manual. A. Our recommendation is to follow the instructions in your ownerâs manual. Many dealers offer to replace brake fluid as an extra service, but itâs not really necessary unless the fluid is dirty. But you should top it off if you see that the level is dropping.