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parasitic drain
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  1. X3 E83 (2004 - 2010)
    Hello, I had a problem where my yellow battery light would come on for about one minute and then go off, but my radio has stopped working. I took my car to the dealership and after a week of them keeping it I received a written quote saying that the amplifier was draining the battery and it...
  2. E39 (1997 - 2003)
    Hello all, I have been putting up with a parasitic battery drain issue in my 540i (year 2000) for a couple of weeks now, and am ready to do something about it. Over this time I have been researching the issue and gathering the correct knowledge to proceed. I do however, have many questions...
  3. E39 (1997 - 2003)
    Does anyone have experience with the apparently newly designed $40 WB FSU? - APSX WB FSU BMW E39 525 528 530 540 M5 FINAL STAGE UNIT Blower Motor Resistor AC for the BMW E39 1997-2003 5 Series M52 M54 Engines See also: - What is the right brand of FSU to buy for your BMW E39 (1) - How to...
  4. 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...
  5. 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...
  6. E39 (1997 - 2003)
    I have a parasitic draw that is driving me nuts. It's currently drawing .64 ma. When I pull the #7 fuse (air ride) it drops to .60 . Is this a normal reading or is this my draw? The only other effect of pulling fuses is the NAV SYTEM fuse (which I don't have) and it drops another .02. Is...
  7. E39 (1997 - 2003)
    Q: What is the secret to removing the three diabolical connectors hindering access to FSU Fuse F76? In this thread, I've gone through the parasitic drain test procedure: > E39 (1997 - 2003) > In progress: Step by step diagnostic DIY ... dead battery ... parasitic battery drain To...
  8. E39 (1997 - 2003)
    PLEASE IMPROVE THE STEPS BELOW SO ALL BENEFIT! (Advice is always welcome!) EDIT: Updated as per Fudman to pull the FSU rather than fuse F76. EDIT: Updated as per 540iman that the nature of the current draw implicates certain circuits. EDIT: Updated as per edjack in that the four doors must be...
  9. E46 (1999 - 2006)
    Greetings all, In troubleshooting repeated voltage regulator/alternator failures, I discovered a circuit that seems to be bleeding voltage into the chassis or something. I started by finding continuity between the positive battery cable (disconnected from battery) and the chassis and then rigged...
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