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Thread: 2008 X3 Difficult Starts, No Codes

  1. #1
    Join Date
    May 2018
    Location
    Bangor PA
    Posts
    1
    My Cars
    2008 BMW X3

    2008 X3 Difficult Starts, No Codes

    I have a 2008 X3 that lately has been very hard to start when engine is cold. If I hold the key in the crank position it will usually eventually start, but sometimes it takes 20-30 seconds and is not always smooth. Sometimes it doesn't start at all, but when I re-try and hold the key in the crank position, it will then start. Once it is running it is fine, runs normal and smooth. Plus I haven't had this start issue once it is warm. My indy tried many different things including changing relays, etc. He was not able to find any codes. No warning lights on dash once car starts...when it fails to start the Service Engine Soon, EML, battery and oil lights come on, but they all go off once I am able to get it started. Replaced all spark plugs about 3 months ago, and changed air filter last month. Any suggestions? I hate to spend $$$ to take it to the dealer.

  2. #2
    Join Date
    Feb 2011
    Location
    Saskatoon, Canada
    Posts
    1,509
    My Cars
    '88 320i Mtech2; 2004 X3
    ... fuel pump?
    ... forty-three years of driving before I get behind the wheel of a BMW .... and I am thinking, "why did it take me so long?"
    ... and then after another 4 years I can't believe that I have two of them !!

  3. #3
    Join Date
    Dec 2011
    Location
    North Vancouver
    Posts
    59
    My Cars
    07 X3, 00 Z3C, 97 M3
    ground straps - you'll see corrosion on the ground cables on the underside of the vehicle.

    https://www.pelicanparts.com/techart...ound_Strap.htm

  4. #4
    Join Date
    Oct 2016
    Location
    NYC
    Posts
    60
    My Cars
    E83 LCI 3.0si
    +1 fuel pump. I had this happen too, and I neglected to take action. I finally had to get a tow after I got stranded on the highway.

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