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heater

  1. No coolant flow to heater core, not the control valve

    General E46 Forum
    Hello, I come to you all with a desperate plea. I have absolutely no clue what is wrong with my E46 right now. (2003 325xi) It has no heat in the cabin. I first tried to see if the ac worked, which it did. Then the heater core control valve, which was fine. Flushed the core, and it was...
  2. is my heater working right?

    General E46 Forum
    Now that the seasons are changing, my wife was observing that although she can get heat from under the dash and floorboards when she selects it, the dash vents only vent cold air when both vents are simultaneously selected. My question is this: Is the system working correctly or should heated...
  3. Neither heat nor cold

    General E46 Forum
    Puzzling question that I have been struggling with for a few months now. My 2004 330Ci is blowing warm air from the the air ducts regardless of the temperature selected on the climate control panel. This is mostly felt when the front vents are selected, a little less when either the defrost or...
  4. No power from heater/AC?

    General E46 Forum
    Howdy - I've just gotten my reliable 2002 325i working again and there are a few issues I need fixed stat. First is the blowers - when I turn on the vents, no matter how high or what temp I set the system to, I get no air flow. My previous mechanic had said it was either the blower motor or...
  5. No heat coming from vents!

    General E46 Forum
    (SOLVED) After reading through many useless posts I came across this post: https://www.bimmerforums.com/forum/showthread.php?1676127-Heater-does-not-blow-HOT-air-Coolant-FSR-Thermo-Control-valve-all-OK/page2 Basically this guy tried everything and eventually a simple backflush of the heater...
  6. No interior airflow; blower, fsr, auc checked.

    General E46 Forum
    I'm a new member, DIY'er and first-time poster. I have a 2004 325i sedan. Last week on a hot day, I heard a faint whine from what seemed like the blower. The sound was high, centered and deep in the dash, but a low-pitch whine, worse at higher blower speeds. I suspected bearings would be...
  7. E46 Climate Control - Blows Cold

    General E46 Forum
    I set my climate control to 23°C (England) and select auto. The heater starts blowing warm air and the air temperature in the cab raises to what feels like 23°C which is great. But.... After about 10/15mins all the heater vents start to blow cold. Including foot vents and the centre vent. If...
  8. Weak Blower

    General E46 Forum
    I've noticed that my blower seems to not change the amount of air that comes out of the vent, no matter if it is on low or high settings. It's blowing cold and hot just fine, but the actual amount of air that is coming in does not seem to change. I can hear it get louder as I increase the high...
  9. It's time.

    General E46 Forum
    Hey guys, I have a nice coolant leak that's playing hide and seek with me. I've narrowed it down from the mid to the top of the engine somewhere under the intake manifold. I'm thinking its the heater o rings, as the coolant puddles on the block. Is there anything else I could have missed? It...
  10. E46 blower motor/fan not spinning, have changed fsr and motor...

    General E46 Forum
    Hey there peeps, Long time reader, first time poster. I've been having an intermittent problem with my blower motor, one day out of the blue the climate control panel went dead, no lights or response from any buttons, then a day later it came back to life. Didn't see anything else odd for...
  11. Weird heating issue?

    ///M3 Forum
    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...
  12. Loss of heat from vents when I turn the steering wheel.

    General E46 Forum
    When I turn my steering wheel, I lose heat from the vents. Is that normal? I've never had that in a car before. I do have a bit of a leak from my PS pump, and a new HCV. Other than that, and the fact that a belt is attached to the A/c, I'm not sure what the correlation would be between the two.:hmm:
  13. Block heater for 330i?

    General E46 Forum
    Anyone using a block heater? Who are you using? Switching from a TDI to gas might be different but I'd like to think it can't hurt? My car has about 250k KM on it so I figure its time to start babying it. Remote start instead? Conflicted :woot:
  14. Heater problems.

    General E46 Forum
    Hey, So I'm trying to fix the heater in my 325i. I have no control over airflow direction. I can hear the fan going, but (currently) it doesn't come out of any of the vents. I just finished a Final Stage Unit replacement, and there is no change. I'm going to be selling the car to a friend, and...
  15. Heater/Defroster stuck on high heat

    General E46 Forum
    I have an interesting problem. (not sure if this is relevant but I figure too much info is better than too little) I got into a rear end accident last november and have fixed everything (so i thought) but now that it is warming up again, I realized that the defroster and the floor heater are...
  16. Need Help with COMPLETE stripping of my e46 drift car

    General E46 Forum
    Hello everyone, I want to start off with saying I'm not new to modifying cars, however, I'm having a pretty hard time stripping out everything I want behind the dash of my 2000 e46 sedan. I have seen this DIY for stripping down to the dash, and I have gotten more than this far...
  17. What is that NOISE?!

    General E46 Forum
    Hi All, Recently put it upon myself to start putting the proper $ into my 01 325i @ 130K miles but lately if it is not one thing its another! So after the past month the 2 bigger jobs i had done with CCV + breather hoses/oil seperator hose/oil filter housing gasket/fuel filter/change all spark...
  18. Help me identify this heater problem please...

    General E46 Forum
    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...
  19. Foot/Floor Ventl Heat Always On

    General E46 Forum
    Problem : When the foot well is selected and the fan is on, heat is coming out. This does not matter what temperature you have selected. 59 or 91. The outside temp is 40-60 degrees. If you select defrost you will get outside temp air, if you select face/dash vents you will get outside temp...
  20. Climate Control Issues

    E90, E91, E92 & E93 - General Forum
    I have a 2006 330i. My A/C only blows cold or hot but noting in between. It only blows really cold or really hot. I've tried dialing in all the different temperature settings in between. I've adjusted the temp wheel on the top as well. Any ideas what is causing the climate control to only...
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