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Why Do I Need To Flush My Brake Fluid?

There are a lot of different opinions and misconceptions regarding the need for periodic brake fluid flushes. Do you need this service? How often? Why?

Most European car manufacturers recommend having your brake fluid flushed every two years. Brake fluid is hygroscopic which means it attracts and holds water molecules. Water will be absorbed right out of the air, and as brake fluid ages it will promote corrosion in many of the hydraulic components found in the braking system. In addition, the seals and hoses used in the braking system slowly deteriorate causing small rubber particles to be suspended in the brake fluid.

Old, contaminated brake fluid on the left vs. fresh fluid on the right.


Antilock brake systems (ABS) have small passages in their pumps and control valves which are easily plugged from the suspended corrosion and rubber particles. That contaminated fluid will lead to compromised braking performance. Replacing your brake fluid at the proper time intervals will help maintain your braking system and prevent more costly repairs down the road.

Midwest Performance Cars recommends following your vehicle manufacturer’s scheduled maintenance intervals. If your vehicle is due for a flush, or you do not know when it was last done, call us to schedule your brake flush today.