I've been getting this message for a while now. Tried clearing the log but the message keeps coming back. I was told it has something to do with SBC. Has anyone dealt with this error before and what are the steps i should take.
Just took my '03 E500 into the dealership for the same message. Brakes work fine, but message goes on and off intermittently. Dealer said it was a failing brake stop lamp switch and wanted to charge me $265 for it. Found this thread: