what are the cluster lights code?

[alfee]

i have a cluster light that lighted up on me and i dont knw what it is.. its on the left side of the cluster.. bottom .. its a big CIRCLE with little squares around it? whats the code/key for that light?
if someone could provide me a key for the light codes that would be great. thanks

1994 c280 btw

[nikrox]

i believe its time for some new brake pads

pretty sure thats what the light means.worn brake pads






_n.

[alfee]

ok..wooh!
thought it was someting to do with the engine.. thanks!