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  1. E46 General
    Hey, I have a E46 1999 323i sedan. I have no heat in the cabin and I cannot figure out why. The only time I get heat is when I unplug my heater control valve. BUT when the HCV is plugged in no coolant even makes it to the valve (both feed and return lines are cool. My temp guage performs as it...
  2. E46 M3
    Hi forum. So I know for a fact I have a stuck open thermostat. It never heats up passed the first dot unless its warm enough outside. I also had an issue with my heater control valve. It stopped working entirely. I read that if you just unplug it you have heat all the time. I did this and I...
  3. E46 XI
    Hey all, so this summer I had to replace my HCV because it was stuck in open (it was also burning the fuse, as soon as I dropped a new one in... blown), and living in Houston Tx, AC is a must. Worked like a charm, cold air was finally blowing! I set the climate control to max and bled the...
  4. E46 General
    So I've read several threads that solved A/c issues with the following symptoms by replacing the Heater Control Valve: 1. A/c on driver side not on passenger side. 2. The need to have all or at least two levels of vents open (i.e. Floor, Mid, Dash Vent) in order to get cool air. Having these...
  5. E46 General
    So for a while ive had a problem with my heaters and through the winter it wasn't that bad, but now its 30+ some days in the UK it's a bit annoying!!!:ben: my car is a 320 52 Plate (E46) Diesel. my problems that the heater just doesn't respond to temperature controls, :banghead: it blows hot...
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