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Thread: X3 2.0D refuse to start after abrupt stop on highway with alot of christmas lights on

  1. #1
    Join Date
    Sep 2017
    Location
    Sweden
    Posts
    6
    My Cars
    Bmw X3

    X3 2.0D refuse to start after abrupt stop on highway with alot of christmas lights on

    Hi There! we got a really fast stop on the highway no sudden warnings before an abrupt stop no hicks the engine just laid off and alot of warning signs came on.A bit scary with wife kids inside but np.We towed it home and did a code scanning the following day.It is a BMW x3 2.0D 2005 (E83) engine.

    I am getting the following faulty codes.

    4691 supply voltage 3
    41BB particulate filter system exhaust backpressure sensor
    4011 Exhaust backpressure sensor before particulate filter.

    if i crank more then 5 secs i also get

    3e90 crankshaft sensor.

    It does crank good but it just will not start.

    I suspect these are not the issues more like an electrical or dme problem.i did change the blue dme relay and the crankshaft sensor and no improvement there.
    I am no mechanic but it feels like something with the gas distribution.
    Is anybody familiar with these symptoms? I thought i might swing by and ask here on the forum before i have to sell it standing as is.A shame it is a nice car to drive when it is working .

    Best Regards Robin

  2. #2
    Join Date
    Jul 2020
    Location
    SOCAL
    Posts
    40
    My Cars
    2011 bmw x3
    Quote Originally Posted by Beemer meaner View Post
    Hi There! we got a really fast stop on the highway no sudden warnings before an abrupt stop no hicks the engine just laid off and alot of warning signs came on.A bit scary with wife kids inside but np.We towed it home and did a code scanning the following day.It is a BMW x3 2.0D 2005 (E83) engine.

    I am getting the following faulty codes.

    4691 supply voltage 3
    41BB particulate filter system exhaust backpressure sensor
    4011 Exhaust backpressure sensor before particulate filter.

    if i crank more then 5 secs i also get

    3e90 crankshaft sensor.

    It does crank good but it just will not start.

    I suspect these are not the issues more like an electrical or dme problem.i did change the blue dme relay and the crankshaft sensor and no improvement there.
    I am no mechanic but it feels like something with the gas distribution.
    Is anybody familiar with these symptoms? I thought i might swing by and ask here on the forum before i have to sell it standing as is.A shame it is a nice car to drive when it is working .

    Best Regards Robin
    Check age of battery/corrosion. I have had many instances where a crappy battery lights up the tree for multiple unrelated CELs.

    Good luck

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