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final stage unit
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  1. E70 X5 M and E71 X6 M (2010 - 2015)
    Team, (2009 BMW X5 35D.) Problem: The front blower for both heat and AC is not working at all. It slowly had gotten worse with blowing then quit altogether. Rear heat and blower are working when I check off (Use Front Settings. I'm stumped on diagnosis and parts and there is no recall on this...
  2. F10 / F11 (2011 - 2016)
    Longtime BMW owner here, and all I can find online regarding the blower motor issues is the final stage unit and or the blower motor. I have already replaced the final stage unit in my car. here is what was and is still happening: Enter Car Brake pedal, start. MAX AC ... Runs for 30-60 seconds...
  3. 7 Series - E23 / E32 (1977 - 1994)
    I am a new owner of a 1993 BMW 740il. The symptoms I had when I first bought her was a very loud squirrel cage when run on max high for the fan setting. The blower would not work at all on any other setting other than the fan on max high. It was also giving off a faint dead mouse smell, could...
  4. Site Sponsors & Bimmerfest Group Buys
    Alright, here is the deal for APSX Wideband Controller Full Kit with D1 Controller, G1 LED AFR display, Bosch LSU4.2. This is in addition to our SALE on this kit. Email your shipping info, forum member ID and preferred paypal address to: [email protected] and we will send you an invoice for...
  5. Site Sponsors & Bimmerfest Group Buys
    It is on sale at $39.99 now. Manufactured in the USA, APSX WB FSUs are designed from ground up to exceed the OEM component quality and durability. We provide a lifetime replacement warranty, no questions asked. Compatible models are: e36, e46, e39, e53, e83 BMW models. Buy it NOW! See our...
  6. E36 (1991 - 1999)
    I bought a 1994 318is about a year back with this problem. Blower blows consistent at all speeds, but there is no heat. The climate control unit reads -37C at all times. I have replace the heater blower resister and the heater core. Both parts were not cheap and the climate control unit...
  7. 7 Series - E65 / E66 (2002 - 2008)
    I hope I have posted this in the right area. I have never been a member of a forum. I tried to find a specific diagnosing area, but did not find one. Sorry in advance if I have violated any rules. I have done 4 hours of diligent searching and my problem seems unique. I hope that it is just the...
  8. E46 (1999 - 2006)
    In response to details in these threads ...... What is the right brand of FSU (aka FSR) final stage resistor/unit to buy Specific question of which BMW USA dealer sells the OEM brand FSU at the best price? What parts are most recommended to buy OEM anyway? Your failed blower resistor (final...
  9. 7 Series - E38 (1995 - 2001)
    In response to details in these threads ...... What is the right brand of FSU (aka FSR) final stage resistor/unit to buy Specific question of which BMW USA dealer sells the OEM brand FSU at the best price? What parts are most recommended to buy OEM anyway? Your failed blower resistor (final...
  10. E39 (1997 - 2003)
    In response to details in these threads ...... What is the right brand of FSU (aka FSR) final stage resistor/unit to buy Specific question of which BMW USA dealer sells the OEM brand FSU at the best price? What parts are most recommended to buy OEM anyway? Your failed blower resistor (final...
  11. X5 E53 (1999 - 2006)
    I am working on my daughter’s 2003 X5 E53 that has a blower that no longer works at all. It was intermittent for several months but now does not. A couple months ago I have replaced the FSU with a new one that I bought at the local BMW dealer. It did not help at all; that the blower was still...
  12. E39 (1997 - 2003)
    I realize there is Final Stage Unit/Final Stage Resistor (FSU/FSR) information all over the place (see references below) - so - I would like to open this thread solely to discuss one topic - which is: - HOW TO BUILD A TEST JIG TO TEST FSU OPERATION ON THE TEST BENCH Here is my first pass...
  13. X5 E53 (1999 - 2006)
    In my E53 X5, the front blower is not working and I installed a new FSU with no change. I can spin the fan with a screwdriver. The fuses are fine as well. Rear fan works fine. Just no front fan at all. It did work up to a few weeks ago. Not sure what to do next.
  14. E46 (1999 - 2006)
    Ok, my heater and AC keeps cutting in and out, pretty much all the time now. I replaced the final stage unit (aka blower motor resistor) and that still didn't fix the problem! Does anyone have any other suggestions? I have a 1999 323i convertible.
  15. E46 (1999 - 2006)
    Did my FSU last night. Like most things with these cars, a lot of things have to be moved just to get what you want. Fairly simple, but tedious. This link helped a lot. http://www.m3forum.net/m3forum/showthread.php?t=119500
  16. 5 Series DIY
    Reference - Final Stage Unit - The Photo Library - All Useful & Useless Photos. Replacing the FSU I was one of the unlucky ones. It took me a long time to take it off, and even longer to put it back in. I just could not see what is going on, and how it should fit in, and what is the...
  17. E39 (1997 - 2003)
    So, my FSU has failed (fan stayed on, drained the battery, yada yada yada), and I'm trying to replace it. Everyone else said the wiring plug was a breeze to remove, but I can't get mine to budge. Any Tips?
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