98 C280...have had this problem for about a year, very infrequent until recently, where I seem to get some weird behaviour in the dash most every ride in the car it seems:

ABS light is on 50% of the time. That is once it's on it stays on until the car is restarted, then goes off...or later back on. I have a new brake switch in, makes no diff.

Low oil light comes on, sometimes accompanied by the coolant warning light, or just by itself...there is no oil level issue, nor coolant problem.

Some other warnings will come on occasionally, when things are really screwy, and the gauges (speed/tach) drop to zero, and even the CEL light will come on...this is somewhat rare, and when it does happen, the gauges will either just come back to life on their own or upon next restart. The CEL will eventually go off after a few re-starts, as well.

I read the code when it happened once and the CEL was still on, it was a transmission communication error p1747, cleared it, stayed off for weeks, and then, started acting up again.

Does this sound like the cluster is dying or it's being fed rubbish signals from elsewhere in the electronics of the car? I went thru all the fuses in the fusebox and the K40 relay area, seem just fine. Perhaps there's a twitchy short somewhere? Where would you look?

BTW the car drives just fine while these errors and lights are acting stupid...and also the digital stuff ie. odometer/clock etc, have no issues at all, just the warning lamps and/or gauges.