I have an e220 2003 diesel. I have been getting a message on and off for a failed number plate bulb which seems to come and go. Tonight, on starting up I got a malfunction "community electrics switched off" as well as the number plate bulb. There appeared to be nothing wrong with the car as I drove home (about 12 miles). I turned off the ignition and turned it back on and both wearings had gone. Any ideas anyone?