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  1. Battery light constant on battery good alternator good

    General E46 Forum
    I recently replaced my alternator after it went bad (battery light wasn't on when the alternator died, car stopped got it towed). Old alternator tested bad, installed a new one. New alternator and volt regulator work perfect, give 14.3 V at the alternator and at the battery. Battery holds...
  2. Replaced Alternator- battery light flickers and issues persist

    General E46 Forum
    I have a 2003 325i with 156k miles on it. A few months ago I started having electronic issues with the car not starting in the morning and the radio shutting off. I noticed the battery was quite old so I replaced it with a OEM battery from a E90 dated 11/17. The car daily drove for a few more...
  3. Not able to diagnose this Electrical fault? (E46 328i)

    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...
  4. Not able to diagnose this Electrical fault? (E46 328i)

    DIY: Do It Yourself
    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...
  5. M3 Red Battery Light

    General E46 Forum
    Hi everyone, Was taking my 05 M3 vert out for a drive today. Wouldn't say I was driving super aggressively but wasn't a stroll around the park either. Oil temp was about 210. I accelerated fairly hard, almost to redline, and all of a sudden the red battery light turned on solid. Immediately...
  6. Yet another battery light question... >:(

    General E46 Forum
    Hi everyone. Haven't posted in a while so here it goes.. BTW, before posting I did look through the forum for answers with out any luck..My case is slightly unique?? So I got a 2003 E46 330i sedan. With colder months approaching my car started acting up a little bit. First it would take a...
  7. Repeat Alternator Failure??

    General E46 Forum
    Wondering if anyone can shed some light on my latest issues: TL;DR: Bought car, drove it 1000+ miles, wouldn't start. Replaced battery. Alternator light came on. Replaced Alternator (Bosch Reman). Replaced Coolant lines. All good for a week. Mystery whine from engine bay. Alternator light...
  8. Need alternator help!

    General E46 Forum
    HELLO ALL....I've been trying to replace my oil filter housing gasket this past weekend and I've ran into a big problem... the damn alternator bolt :censor: I've removed all the bolts except for the 16mm long bolt on the bottom. I can turn the bolt with a breaker all day (I know it's turning)...
  9. Red Battery Light On

    General E46 Forum
    Today I hopped in my car and the red battery light is on. It was wasn't on when I drove to Church this morning but when I went to my friends house for a party it came on. I checked the OBC reading and the battery voltage was 120 and the alternator was at 117. What is the problem amigos
  10. Replaced alternator and battery twice, battery light still on!

    General E46 Forum
    Hey guys, I don't post too much since i can usually figure out my cars issues but today i'm really stumped! About 2 months ago the alternator went out on my 2004 330ci, the car died and the battery light came on. The battery was dead and it was obvious the alternator had given up. I bought a new...
  11. 2000 328i alternator

    General E46 Forum
    My alternator went out last night (battery light flickering, had to push to start and drive home, lights dim and no speakers), and I have some questions for finding a replacement alternator. What is the part number for an alternator for the 2000 328i? I know the remanufactured Bosch it is...
  12. Bosch and valeo alternator

    ///M3 Forum
    So my alternator went out and I noticed that the bottom half with the bearing and everything else was Bosch but the upper where my voltage regulator which was what I found was the issue so me being me thinking valeo and Bosch made a collab or something order a Bosch voltage regulator since it...
  13. Overfilled Oil, Car Won't Start

    General E46 Forum
    Hey folks, hoping to get some insights here before I shell out for underground towing. My e46 has been having issues with oil burning. I recently had the pan gasket replaced, car was checked and all plugs/seals were fine, no leaks anywhere. Mechanic gave me some oil to top up in case it...
  14. Car keeps dying everynight!

    General E46 Forum
    I need help ! My 06 bmw 325ci coupe not convertable keeps dying on me. It started about a year or so ago. I would leave my car for about a weekend (Fri,Sat, &Sun) and wound start it monday and would get the Click Click Flash Flash .Would use a jumper to start it up and after i would not hear a...
  15. ABS Light after engine off for 1 second

    General E46 Forum
    Hello! I have a weird problem after i replaced the alternator (The old one was noisy). For example, after i turn the engine off, the ABS light comes and stays ON for 1 second. Same applies for other lights from the OBD, if i have ASC disabled and High Beem or handbrake lights on, they are...
  16. Bad Battery Causing Limp Mode?

    General E46 Forum
    I've been having a rather occasional problem (only happened twice so far) with my M3. The DSC, Oil, EML, and Battery lights come on and limp mode ensues. It then starts to have trouble maintaining idle. This last time, the engine died. If I turn the car off and back on, it runs fine. I didn't...
  17. Bmw 2003 e43, battery or starter?

    General E46 Forum
    Hey guys, I have a problem with my car (e46 2003 sedan, manual), a month ago I started my car as every morning, and all of the sudden the car wont start, headlights flashing, dash flashing, so I charged the battery and guess what, car is working fine now, 2 weeks later the same problem, I check...
  18. Alternator, Or Batter?

    General E46 Forum
    Hey guys, So i drove my car about 10 miles and started and drove good. Then i stopped at the store and when i went to turn my car on it stuttered, was about to start but died. I jumped it and it drove good, went to autozone and they said it was a bad alternator. Next day i jumped it and it...
  19. What's this hose called? (help...)

    General E46 Forum
    Hey all, New to the forum here. I recently took ownership of my brother's hand-me-down, a 1999 BMW 323i (E46). While I was changing out the expansion tank, I noticed a pretty significant hole in a hose which is adjacent to the belt running between the alternator and power steering pump. The...
  20. E46 - New Alternator, No start, Just Clicks

    General E46 Forum
    2004, 325 CI, M56 engine, Bosche Alternator Installed a rebuilt Carquest Alternator, and the car wont start via jumper cables. Simply clicks when key is turned. ================== The codes read: 281C Bit-serial data interface (BSD): signal 281D BSD Generator: Signal DTC: 09, 43,00,0F No...
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