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voltage regulator

  1. General E46 Forum
    Hello E46Fanatics, So I'm facing this rather strange issue that I haven't been able to diagnose 100%. It's an electrical fault where my Headlights, Turn Signal Indicator, Hazard and AC doesn't work all the time. Of course I did various tests on the Alternator. 1) Disconnected the + while...
  2. General E46 Forum
    Hi, I wanted to check in with the BMW experts. Recently my son's 04 330ci puked half way home. It had a slow crank when starting and basically ran out of spunk on the way home. Switched in a fully charged bat she started right up made it home OK. Battery is holding a 13v charge. So, I went...
  3. DIY: Do It Yourself
    My red battery light was on the past few weeks even though the voltages were fine. It turns out it was caused by a bad oil level sensor that was blowing fuse 30. I've been doing a lot of research the past few weeks and I didn't see many stories quite like mine, so I thought I'd share: What...
  4. ///M3 Forum
    Hi. I have a M3 from 02 that I have some problems with. When I bought it the previous said that he has had some battery-problems with the car. And that the battery had been drained a few times. I drove the car home. About 400kilometres. And no battery-lamp was showing. But then I saw that the...
  5. General E46 Forum
    The problem: 1999 323i (158k Mi.) Bad alternator or Voltage Reg.? I've been reading these forums like crazy the last few days and it's proven to be immensely helpful in narrowing down my issue. I noticed the battery light coming on the dash intermittently a few days ago while cruising around...
  6. Australia
    Guys as many would know I've made a trip up to Surfers with the family for a holiday. All well so far until I ran into some trouble today... :thumbdwn: It looks like my alternator or voltage regulator is on the way out. The battery is only 2 months old and I don't believe the symptoms relate...
  7. General E46 Forum
    2006 330Ci Cabrio, 68,000 miles or so. Been installing a new sound system and spend a long time tweeking with the key in ACC. Batt dead, charged, dead, stc. over a couple days. On the Monday before Thanksgiving, I bought a new Sears DieHard Advanced Gold (AGM, top of their lines) battery...
  8. General E46 Forum
    So yesterday I did the tail light ground wire fix on my 2004 325i Automatic. The passenger side was melted pretty good. I attached aq 14 gauge wire with a box connector to the brown wires and the to the tail light bus ground with a female connector. This did the trick, the rear "bad" tail...
  9. General E46 Forum
    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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