2001 e46 320d - headlights flicker when starting

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  1. 2001 e46 320d - headlights flicker when starting 
    #1
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    leerc's Car Details
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    when i turn the key to start it the head lights flicker, this cant be normal surely?

    it has angel lights if that makes a difference
     
     

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    Can anybody assist the OP ?
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    Quote Originally Posted by leerc View Post
    when i turn the key to start it the head lights flicker, this cant be normal surely?

    it has angel lights if that makes a difference
    Explain more. I assume you switch the headlights on first, then start the car? How bad a flicker are we talking? As power is drawn from the battery for the starter motor, it's common that other electrics in the car have to sacrifice a bit of power for a second (radio, lights etc).

    It sounds like nothing to worry about, how does it cause a problem?
     
     

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    Stumefs's Car Details
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    I'm experiencing the same thing with my headlight when I turn the key to start. can anyone help regarding this issue.
     
     

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    #5
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    Stephenb100's Car Details
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    I left my e60 530d running to warm up the other morning with the head lights off and I swear they flicked on and off, like a quick blink a few times, while the engine was running and the lights turned off. I thought that was a bit odd myself. The odd other electrical issue too, I've stuck it on another thread asking could water be getting in somewhere effecting systems. Maybe I'm wrong though.
     
     

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    If its what I think it is, its the lamp test. The E46 tests all the bulbs every 30 seconds, I think the E60 does the same thing. Normally it happens so quickly it is done before the bulb has a chance to light. If it detects a blown bulb, a warning comes up. I have put in LED angel eyes. LEDs come on instantly, whereas bulbs take time (look at a car with LED brake or indicators, and compare with normal bulbs.). If you leave the engine running, with the lights off, after every 30 secs, they flicker as Stephenb says. Look closely at one of the angel eyes, and time it between flickers, should be about 30 seconds.
     
     

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    #7
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    Brill thanks for that, one less thing to worry about, now just the other random faults to takle, hope it doesn't end up a fortune!
     
     

  10. 2001 e46 320d - headlights flicker when starting 
    #8
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    jim 320D's Car Details
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    As bobdisc said its the can-bus OBC checking for blown bulbs totally normal my angle eyes do it for about 3 seconds when first turning them on but after that you don't see it well I don't

    320d Tourer 11/2003
     
     

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    omj (09-02-2013)

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    #9
    omj
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    My angel eyes do that too, I put it down to power surge, learn something new every day ;-)
     
     

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