My 850i was sold to buy the 356, and it was a expensive piece of equipment and I loved every minute of it. Car would go from 85 to 150 like everybody else was standing still. I figured about 4000 a year to keep it running perfectly. The previous owner had spent ~10K just getting it into good running condition, most of that was labor. Not a car to own for the faint of heart, that and the check engine light sometimes has a life of it's own on those cars and will couse you to tear everything apart searching for soming to justify the code.
But I loved every second of it, only reason I sold it was the symbol rating of 26, basically right there with the 456 GT ferrari. I am 22 years old the insurance was off the charts.
Got the speedo working, cable snapped out of the back of the gauge, screwed it back in and everything should be fine, the temp gauge was a bad conection, I believe but I am not sure as I have not warmed the car up since I fixed that. The only thing remaining is the squeak and the dash light. The squek is coming from the door rubbing on the inner lining that vintage pusts between the door stops. I believe a little bit of felt will solve that.
As for the light I am not sure what it is even for, I assume that it is the oil pressure light and that it is not functioning properly as it is lighting up at random. It is the light on the tac. on the right hand side it glows red. The car starts and runs fine, the only thing that I can think of is that the clearances on the motor are tight, I have had rebuilt type 4 motors do something similair after a really tight build and then it stopped around 2000 miles.
Thing is even though the light is random it still scares me so I will trace it tomorrow or hopefully find the owners manual on this web site which will allow me to at least be confident as to what it does. Will post pictures later in the week as soon as I get my digital camera back. Any help you guys can give would be great