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Thread: dash gauges went crazy & errors on navi screen

  1. #1
    Join Date
    Jan 2019
    Location
    Romania Cluj
    Posts
    3
    My Cars
    BMW 120D e87

    dash gauges went crazy & errors on navi screen

    Hi guys, I am new here.

    Can you please help me with a e87 120d from 2005. I was driving home and suddenly my gauges started moving up and down, like some short circuit was happening. DTC ABS Seat belts, handbrake all errors on the dash. + on the navy screen i got the massage: "electronic failure, you cant continue your journey, DTC failure please drive carefully, ELV failure please stop the car slowly. I discovered that its going crazy just when the headlight are on. As I turn off the lights all the errors diaper. As I turn them back on errors come on to. All mi lights are working fine on the car.

    Any suggestions?

    Thanks a lot!

  2. #2
    Join Date
    Dec 2013
    Location
    Chicagoland area
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    3,891
    My Cars
    EXOTICS
    Either your battery is failing to hold a charge, or the alternator is failing, or maybe both.
    But it may be simply loose +/- battery connections or failing engine ground strap connections.




  3. #3
    Join Date
    Dec 2013
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    Chicagoland area
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    EXOTICS
    Do you own a multimeter/voltmeter? You may be able to perform a simple test of your charging system.




  4. #4
    Join Date
    Jan 2019
    Location
    Romania Cluj
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    3
    My Cars
    BMW 120D e87
    Quote Originally Posted by MIKYZZ4 View Post
    Do you own a multimeter/voltmeter? You may be able to perform a simple test of your charging system.
    Unfortunately battery is new, just bought it this summer. The multi meter says 12.5 when the engine is off and 14.8 - 15.00 when engine on.

  5. #5
    Join Date
    Jul 2011
    Location
    Arlington, VA
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    6,337
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    2018 BMW M240i
    “14.8-15VDC” is high. Do you trust your meter?

    Whacky voltages cause whacky issues.

  6. #6
    Join Date
    Jan 2019
    Location
    Romania Cluj
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    My Cars
    BMW 120D e87
    Quote Originally Posted by MarcoZandrini View Post
    “14.8-15VDC” is high. Do you trust your meter?

    Whacky voltages cause whacky issues.
    I will try with a diferent voltage meter also.

    - - - Updated - - -

    The errors apear even if the engine is off, when i turn on the headlights.

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