98 328i Sedan problems (several)
I happened across this site/forum while trying to troubleshoot my son's car. First I've had one of the coolant flange nipples break at the firewall (car overheated). I didn't discover it until I was replacing coolant in it today & saw it pouring it out. I also saw it leaking from (I believe) the water pump vent hole. So, my question on this issue is, can the flange be replaced as a separate unit or do I have to replace the heater core with it? If it can be replaced separately, does anyone have an online vendor that I can find it at?
Second problem, we replaced the cam sensor (car wouldn't start, check engine light on and scan indicated bad sensor) and we still cannot clear the code. The car now runs, but I should say rather, we clear the code and it returns almost instantly. Am I correct in assuming that the sensor is probably a defective one? It's an aftermarket unit so it wouldn't suprise me.
Third and final problem (for now) is there is a knocking noise in the right rear over bumps. It seems to come from directly under the right rear passengers seat. I've already replaced the shocks and upper mounts. I wonder if anyone else has run across this problem and can clue me in to where to go next.
Thanks for your assistance