I tried to replace one of the bulbs in my OBC according to the archives. I used a 6v bulb from Radio Shack. The readout is still very dim, so I guess I didn't do it properly. There is really no way to know if the new bulb is lit or not, therefore no way to know if I did it right. Anything I should try? Anyway, is there a cheap place to get a new one besides the dealer. I have seen them in BMP and Bav Auto, -any where else for a few bucks cheaper??? Or, any parts cars out there with a spare??? Thanks a lot!!! Greg T '88 535is