Hi all,

I just recently purchased an 89 BMW 525i 150,000. I am currently having an issue with the Brake Fluid indicator light coming on and off. I checked the fluid and it was a little bit below the max line so I added some fluid to reach the line. When I first turn on the car the Brake Fluid indicator light is off. After driving for about 15 minutes it begins to come on and off. For example when I step on the gas the Brake Fluid indicator light goes off and as soon as I take my foot off the gas it comes on. Also when I step on the brake it goes off. When I take my foot off the brake it comes back on again.

Any idea to what is causing this and how can I fix it?