OMG! It's STILL overheating!
So I was having trouble with my 92' 325is overheating a few weeks back and it has been giving me trouble ever since. I started with the cheapest and easiest things first: Thermostat, new gaskets, new aluminum t-stat housing) It was still overheating, so I went ahead and changed the water pump as well. That seemed to work fine for about two days of hot, heavy traffic driving and then I started losing coolant. I spent the better part of a week trying to figure out where it was leaking from and finally figured out it was the heater core, so I replaced that as well. Now, there are no more leaks and I am not losing coolant at all. I have tried flushing the system several times, I always use distilled water and burb the system correctly and i have tried various ratios of anti-freeze to water. I have used redline water wetter in all and also tried Royal Purple's Purple Ice and straight water. I know that at this point I should be thinkg head gasket, but it doesn't exhibit any signs of being bad. There is no oil in the water nor water in the oil. I haven't lost any power, water level is staying full and there is no water coming from the tailpipe. ( except for minor condensation). The only things I haven't replaced are the radiator (was replace a little over a year ago) and the fan clutch. The fan seems to spins at the same speed as the motor and increases with the RPMs but I don't know what else it is supposed to do. Does it have another stage that it goes through? I have gotten the car to stay cool enough that I can drive it for about 6-8 miles at a time before it starts to over-heat. Anyone have any ideas? I am trying to get this thing fixed so that I can get it sold and I don't want to deal with it any more. Thanks is advance for any help I get!