Since I bought my 1995 318i last year, only the backs of the front seats will heat up, with no temperature change on the seat bottoms. So, today, I checked for voltage at the connectors to the heat elements...all connectors say 12 volts. OK, then I checked for continuity from the heat elements themselves...now, I would expect to see that the circuit is closed for the heat elements for the seat backs( which work fine), and that the circuit is open for the heat elements for the seat bottoms( which don't work)....however, the ohmmeter reading for ALL elements is exactly the same, 6.3 ,so I checked the ohmmeter....probes apart, reading is 0.0...
probes together, reading constantly fluctuating....
What I don't understand, is that the continuity of the elements that work, and those that do not work, is the same, and since voltage is being fed to the elements connectors, then ALL the heat elements should be working.
Or, is there a fuse, or a fuse link, hidden somewhere, that may be blown and is not allowing the voltage to get to the seat bottom elements.
Everything else is working fine electrically, and mechanically, on this car, and I have checked the appropriate fuses, but all seem to be OK.
Any ideas ????