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  1. #1
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    Member No: 86875 thelemur is an unknown quantity at this point thelemur's Avatar
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    The notorius e46 idle surge/stall problem

    Ok, so i've been doing my research, trying to find a solution to my surging/dipping & stalling idle on my 5-speed e46.

    I've seen a few hundred posts on this issue, mostly just people speaking up advising they too have the problem.

    The only solution I see mentioned is something to do with the VANOS system, does anyone know if this is indeed the solution, and what part of the VANOS system was replaced?

    My dealer doesn't seem to think there is a problem, and I'd rather get it fixed that go into the whole lemow law thing, but if they can't fix it, I just might have to go that route.

    Sorry if this topic has been beaten to death...

    ~Dan

    2001 330Ci 5-speed


  2. #2
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    Re: The notorius e46 idle surge/stall problem


  3. #3
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    Re: The notorius e46 idle surge/stall problem

    Try a software download -- it worked for me. Do a search, print out a good description, and what the dealer did, and show it to your dealer.

    Mine reloaded the software with an updated version into my '01 325, and it's been fine ever since.

  4. #4
    chops
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    Re: The notorius e46 idle surge/stall problem

    Dan,

    I just sent you an email. I too am experiencing this problem on my 2001 330ci 5-speed. I can't figure out a pattern, although, I do notice that it is hot outside and I have my AC on. Don't know if that is the cause.

    This is a frustrating issue for me because I never know when it's going to happen (happens sporadically). However, it is quite dangerous, as 90% of the time it happens, I have the clutch in while making a turn. As far I know, the airbags WILL NOT go off if your car is stalled.

    Interested in seeing your response, esp. about the lemon law part.

    Thanks!

  5. #5
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    Any Ideas? Has anyone found a solution yet?


  6. #6
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    Well, im headed back to the dealer today

    and im brining 12 printouts of similiar issues from this message board. If I find a solution, this board will be the first to know.

  7. #7
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    Problem Solved, At least so far

    Ok, for visit #3 to the dealer, they decided to reprogram the DME with the most recent software. So far, It's been OK, and the idle hasn't dipped a hair below 700rpm. I will keep a close eye on it.

  8. #8
    double vanos
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    All it takes is one corrupted line in the engine..

    management software and significant problems will arise.

  9. #9
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    Random E46 surge

    Hey guys, I'm new to the forum but I'm having this problem too I made a YouTube video of what is doing if you guys wanna check it out and possibly give be done feedback on it.
    Thanks Stephen
    Reply With Quote Reply With Quote 70.215.17.172

  10. #10
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    Here's the video I made.

    https://youtu.be/mXWE0V14t0Q
    Reply With Quote Reply With Quote 70.215.17.172

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