Charging System Diagnosis for Auxiliary Battery , Mercedes (W164)

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  • Опубліковано 2 лют 2025

КОМЕНТАРІ • 18

  • @BenzAddiction
    @BenzAddiction  10 місяців тому +4

    Sorry that the repairs are getting more technical, but I haven't seen any video on this, but many Mercedes owners have had this issue that I am hoping to solve... comments and feedback are welcomed and appreciated. Thanks for watching 👀

  • @Brian_L_5168
    @Brian_L_5168 10 місяців тому +2

    Great hack! SAM controls many things, if your SAM no longer charging aux battery, what other functions are not working in your SAM? I am afraid there are still hidden issues?

    • @BenzAddiction
      @BenzAddiction  10 місяців тому +2

      Thanks mate, I have no other fault code on SAM, that's why I don't like to replace it only for not charging the Aux battery.

    • @admin6228
      @admin6228 10 місяців тому +1

      @@BenzAddiction What is the function of the SAM module ? What are the chances of having a potentially failing voltage regulator in the Alternator?

  • @blackhat356
    @blackhat356 7 місяців тому +1

    Thanks for this informative video. I am hoping you can help me with a similar prob!
    I have a plug-in hybrid C350e 2017. the car's auxiliary battery, main battery, and starter motor are new. However, I still get the error "Stop Vehicle. Leave the engine running". Occasionally, the car also shows the warning: "Collision Prevention Assist Plus inoperative"
    I placed the car on a scanner and only one error shows: U301700 - The real-time Internal Control Unit Clock Has A Malfunction.
    Do you have any idea what might be causing this?

    • @BenzAddiction
      @BenzAddiction  7 місяців тому

      Trickle charge your 12v battery overnight and see if you get this error driving after?

    • @blackhat356
      @blackhat356 7 місяців тому

      Thanks for the advice, I will try that! Do you think there is a bad fuse somewhere causing this?

    • @BenzAddiction
      @BenzAddiction  7 місяців тому

      @blackhat356 it might be anything from dirty 12v battery poles to, bad charging system, to a not compatible battery.

  • @paulopalma-condesso
    @paulopalma-condesso 10 місяців тому +1

    Thanks! Who knows, someday, it will help me too.

  • @allanriches9381
    @allanriches9381 10 місяців тому +1

    good work around,what is check engine light on for.

    • @BenzAddiction
      @BenzAddiction  10 місяців тому +1

      Thanks Allan, you know early M272 loves to throw p0016 and p0017... 4 cam sensors, 4 cam magnets, low quality balancer shaft sprocket, you know why I love M112 and M113? Gotta stick to those, but I had to experience this for myself!!!

    • @allanriches9381
      @allanriches9381 10 місяців тому +1

      @@BenzAddiction yes just bought a w210 wagon with the m113 430 in it , what a great car

    • @BenzAddiction
      @BenzAddiction  10 місяців тому +1

      @allanriches9381 Great choice Allan, such a classic look, still decent quality great ride, and bullet proof engine and trans. Please keep sharing with us your experience, I am sure I will buy one, one day.

  • @francoisrossouw1769
    @francoisrossouw1769 6 місяців тому +1

    Why is the yellow engine warning light on now?

  • @irfankhalifa5647
    @irfankhalifa5647 3 місяці тому +1

    This is brilliant idea 💡 because its connected directly to main battery if the car is turned off resting voltage of main battery is 12.6v this would leave the charge controller on trying to reach and charge aux battery @ 13.4v?
    Maybe better to use a fuse tap on a fuse that comes on with ignition plus this would fuse protect the charge controller in case of failure?

    • @BenzAddiction
      @BenzAddiction  3 місяці тому +1

      @irfankhalifa5647 Thanks mate :)