My car is a 1995, late production (last run) of the E34. So it is now 15/16 years old. ALWAYS maintained by BMW/BMW-independent shops. Recently I've started getting several "error" messages on my display: low coolant, low oil, brake light circuit, maybe others. There is never anything actually wrong regarding any of these (coolant level is okay, oil is fine, brakes are working, etc).

Is there some single module the in computer/diagnostics that might be failing, or is this indicative of the age of the car and something I'm going to have to deal with? Obviously, if I keep getting false errors/warnings, it makes that system pretty worthless. I'll never know if I really have a problem - w/o of course checking each thing every time.

1995 525i