Last night I started my 240 after it had sit for a couple of days, and none of the instruments worked and neither did the rearview mirror defoggers. I checked the fuse box and nothing appears blown. That doesn't rule out corroded fuses, but the list on the fuse box door doesn't indicate which fuse might control the instrument cluster, so I don;t know where to start. If not a fuse, then I'm suspecting an ignition switch problem or a corroded connection somewhere. If anyone else has experienced this problem and knows the most likely point of failure, I would like to hear about it and hopefully save a lot of time tracing through the circuit.