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  1. X5 E70 (2007 - 2013)
    Hello all, New member here. I’ve recently acquired an 2011 x35d (e70). I have an active fault for the AUC sensor. Upon removing the trim cover I found critter damage. The AUC wires have been chewed off at the connector. I can repair this easily, but with all the wires being white and no kind of...
  2. F30 / F31 / F32 / F33 / F34 / F36 (2012 - current)
    So, I recently noticed that my BMW after 30+ minutes of driving the heat, no matter if I have the temperature set to it’s lowest (60), is letting warm air into the cabin. I have to turn the AC on to cool it down even though it’s a comfortable 56 degrees F. Anyone know why this might be the...
  3. E90/E91/E92/E93 (2006 - 2013)
    Hi I have a 2010 318i tourer. Unfortunately the heating and air-con hardly works. The heating barely gets warm when I put the temperature up to maximum and the dials turned to red; and the ac barely does anything with the snowflake on and the temperature down to minimum and the dials turned to...
  4. X5 E70 (2007 - 2013)
    Hey everyone. I have a 2008 X5 4.8i E70. When heat is turned on it will blow hot on the passenger side and cold on the driver's side face and foot vents. This remains constant. The cold air coming from the driver's side seems to be whatever the outside temperature is (not confirmed). A/C...
  5. E60 / E61 (2004 - 2010)
    Currently dealing with my wife’s 2007 525i. We had quite a few problems over the last couple months, and hopefully not related. Just replaced crankshaft position sensor and transmission fluid - the CPS had thrown more than 8 codes, but after replacement all disappeared. However, the heater has...
  6. X1 F48 (2016 - current)
    I understand that the newer BMWs use condensation sensors in the HVACM. Supposedly the sensor measures humidity via condensation and if it meets a threshold it will turn on the compressor to begin reducing the likelihood of fogging the windows. I think its a decent idea but like other ideas I...
  7. E39 (1997 - 2003)
    Hi all, The internet has failed me thus far so hope theres someone on here that can help! I bought my 523i in the summer and didnt realise that the heating wasn't working until winter rolled around. Needless to say I've had enough! I dont know what the original symptoms were prior to failing...
  8. E36 (1991 - 1999)
    Hi - been searching threads in relation to a long standing issue I'd been having, as well a multiple mechanics having looked to find the cause over the last couple of years. No joy until today! There are several threads around re this issue and I hope this may at least point people in the...
  9. X5 E70 (2007 - 2013)
    Vehicle: 2009 3.0si, 4-zone climate, with 75k miles. Electric water pump, thermostat and radiator replaced 12 months ago with OEM parts. Issue: In Auto there is no variation in HVAC function irrespective of temp setting [60-84] or mode setting [soft, medium, intensive]. All I get is two...
  10. E90/E91/E92/E93 (2006 - 2013)
    hi Just made and overall HVAC replacement, evaporator, compressor, external evaporator ... The first 2 days the AC was cold as ice", yet I feel that the blower is not as strong as before, 3rd day the cooling started to be less. I noticed when I start the car, the Ac blows hot air, until I press...
  11. X5 E70 (2007 - 2013)
    Hello Everyone, Few months ago started to experience problems with my AC/Heater. It only blows cold or hot air. From 60-83 it blows cold and it blows hot only on 84. There is no in the middle. Did anyone have this problem before or knows how to fix it? Thank you!
  12. E60 / E61 (2004 - 2010)
    When I turn the fan speed to the highest setting, I don't get the blast of airflow that I would expect. I hear the fans blowing like crazy, but not a lot of airflow. The airflow does increase somewhat as I turn up the fan settings, but again, not the volume of air I would expect from personal...
  13. Mobile Electronics and Lighting
    UPDATE: Everything sold; thanks! (photos removed to save space) Unit came out of my 2002 330Ci last year after I upgraded everything and went to a double DIN setup. Doesn't do me any good sitting on the shelf and figured I'd list it here before putting it up on eBay. Here's a few pictures...
  14. E90/E91/E92/E93 (2006 - 2013)
    Here's a video of what I experienced this morning http://youtu.be/8ElEnzMqwGQ This morning it was -9F when I started my car. After starting up and turning on the HVAC, the speed of the blower did not match the speed displayed on the control screen. I could hear my squeaky blower turning...
  15. E46 (1999 - 2006)
    By now, we're probably all familiar with the infamous BMW HVAC system stink. There's just something about the design of the BMW heater box - the large, complex black plastic enclosure that sits between the dashboard and the firewall and contains the HVAC blower, A/C evaporator and heater core -...
  16. E39 (1997 - 2003)
    First: very nice and helpful forum + community!!! Congratulations! Second: I'm really new to forum/bmw. I am a bit of DYI but not as mechanic :( The story: I always wanted to have a BMW (not new, can't afford) and a friend of mine, mechanic, helped me to get a cheap one, so I got this 2003...
  17. X3 E83 (2004 - 2010)
    So my car needs a new cabin air blower installed. It's a 2004 X3 2.5i. The blower stopped working. I've checked all the fuses and even replaced my FSU but still no air. The motor was making noise and chirping and running rough / variably before it failed so I wasn't surprised but now it needs to...
  18. E39 (1997 - 2003)
    My car sometimes makes a ticking noise when the HVAC is on, never when it is off. With the engine running, the interval between ticks is about 3,5 seconds, with the engine off, the interval is shorter, about 1,5 seconds. I can best feel the tick through my feet and when they are not on the...
  19. E39 (1997 - 2003)
    Hey Board, I've posting a lot it seems recently. My cars likes to save all my DIY issues for those sub-freezing days, it seems. I have a question I've been meaning to put on the board for a while: Why is it that when my front cabin HVAC vents blow heat, the rear cabin vents (back of the...
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