I've recently returned home from a 1 week, 2,200 mile road trip in my 1987 325i convertible. It was a tough trip for the car (10,000 ft mountain passes; 110F desert temperatures, long days, etc) and undeniably, it had its problems. One problem I need help figuring out. Somewhere in the heat of the Mojave Desert, headed toward the Grand Canyon, there was an electrical glitch. The symptoms now are: 1.) All instruments in the instrument cluster - except speedometer - are dead (fuel gauge, water temperature gauge, tachometer and instantaneous mpg gauges are dead). 2.) Instrument cluster shows ABS and battery warning after engine started (fades after a few seconds) (it's not the normal vehicle function "check" lighting while starting). 3.) A/C compressor and blower fan activate when engine is first started, then shut-down after 2 seconds. A "sneeze' sound comes from the compressor when it stops. 4.) OBC dumped its memory (time, date, av mpg, av mph etc) but now seems to be holding memory (time, date) but is not getting a signal for mpg, mpg or range. 5.) Radio locked and required "security code" entry but held its memory. 6.) Despite this all, the car runs like there is nothing wrong. Do these symptoms point toward suspect connectors, relays or something? All troubleshooting I have read treats the symptoms separately. It just seems too coincidental for it to be simultaneous failure of independent systems. Poor little car. It got me home despite its problems (and thank goodness for modern sunscreens).