How much would a brake fluid change cost?

A JAguar XJ6 needs the brake fluid changed because it has that mushy feel. How much would it cost?How much would a brake fluid change cost?bad brake fluid will not give you a mushy feel in your brake pedal, but air in the system will. Just bleed the brakes and you will be fine. to change the brake fluid a shop should charge you about $150 - $200.