Warning light on 1992 BMW 318i

I just noticed a warning light on my dash. It is round and has 6 to 8 lines around it(like the sun), it is located just left of the e-brake light. I didnt get an owners manual and would like to know what it is warning.

Asked by for the 1992 BMW 318i
This means that your brake pads are worn thin. Better replace them. Check all 4 wheels.
Thank-You. It took me about a hour searching the internet. I better get my hands on an owners manual.