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Thread: 1994 BMW 840ci Car Won’t Start

  1. #1
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    1994 BMW 840ci

    1994 BMW 840ci Car Won’t Start

    HELP!! My drivers window broke, had it replaced at the window shop. Got in my car to leave and it wouldn’t turn. My electricical stuff works (windows, locks, radio...). But I can’t open my trunk. The car WON’T start. What’s the problem????? I need help for real, this is my everyday drive. The mechanic reset things and he said that wasn’t it. Please say it’s sonething easy 😢😢

  2. #2
    Join Date
    Feb 2010
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    Hampshire UK
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    99 840ci Sport Indv
    Use the emergency procedure to open the trunk if required:

    https://www.meeknet.co.uk/e31/BMW_E3..._Procedure.htm

    Check that the instrument cluster shows that the gearbox is in Park 'P' - try starting in Neutral if you can't select Park.

    I'm sure the mechanic would have measured the battery voltage as that would be the most obvious reason for not cranking. But, if the engine turns over but doesn't start there are numerous possibilities - and the mechanic should check for a spark to start with.
    Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i


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  3. #3
    Join Date
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    x5, 640i, 850Ci, 850CSi
    Quote Originally Posted by BlkCat840ci View Post
    HELP!! My drivers window broke, had it replaced at the window shop. Got in my car to leave and it wouldn’t turn. My electricical stuff works (windows, locks, radio...). But I can’t open my trunk. The car WON’T start. What’s the problem????? I need help for real, this is my everyday drive. The mechanic reset things and he said that wasn’t it. Please say it’s sonething easy 
    Make sure that batteries aren't run down. My 850, if allowed to sit too long, will not start, but the radio plays, the windows work, etc. Jump start, and all is well. These cars are very susceptible to issues as the result of low (as opposed to no) voltage conditions. Just one more idea.
    Last edited by mbarrett635; 09-23-2018 at 12:08 AM.
    Mike Barrett
    94 850CSi, Hellrot over silbergrau dunkel/silbergrau hell
    96 850Ci, Oxfordgrun over silbergrau hell

  4. #4
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    1994 BMW 840ci
    I’m going to tell my guy to try that on Monday. First we have to get into the trunk (can’t open it now)
    Thank you


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  5. #5
    Join Date
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    E31s
    [QUOTE=BlkCat840ci;30110631]I’m going to tell my guy to try that on Monday. First we have to get into the trunk (can’t open it now)
    Thank you

    Suggest you try Timm's emergency boot opening procedure that he sent you earlier in the string above.

  6. #6
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    1994 BMW 840ci
    SteveCT, for sure will use his procedure to get into the trunk first. Must do that in order to jump it.


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  7. #7
    Join Date
    Feb 2016
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    Brooklyn, NY
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    1995 840Ci, 2013 X5
    Actually, you should jump the car from the front. Look by the passenger shock tower for a cover with a + on it. That's your positive connection. Also try arming and disarming your alarm.

    Brett
    Last edited by ltbrett; 09-23-2018 at 12:47 PM.

  8. #8
    Join Date
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    1994 BMW 840ci
    Okay, I saw that under the hood. My car is still with the mechanic. I will contact him in the morning and relay this information to him.
    Thank you-


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