I have a 2000 subaru legacy outback with about 160,000 miles. The brakes are spongy. The reservoir is full. I took it to my regular mechanic, and he said the lines are good. He also said that if it were the master cylinder, after pumping the brakes up the peddle will sink to the floor, which it …

Spongy brakes

Jim123 December 31, 2011, 9:23pm 4

I have never changed the brake fluid or flushed the brakes.

Will flushing the brake system cause contamination from knocking flakes off the lines?

Thanks! Definitely something to try.