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ML350 - Fault Code -102100

Discussion in 'Tuning, Styling and Performance.' started by Daniel Smith, Jul 26, 2019.

  1. Daniel Smith

    Daniel Smith New Member

    Messages:
    4
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    3
    Joined:
    May 27, 2019
    Your Mercedes:
    ML350 Bluetech (2012 W166)
    Hi guys,

    Looking for advice please.

    To cut a long story short...

    -Bought a 2012 ML350 BlueTech
    -Had it remapped
    -Engine warning light came on
    -Took it back to remap company
    - This is the code - 102100
    - He told me this is a battery capacity issue - battery test said running at 30%
    - Removed code and discussed ordering a new battery
    - I drove 150miles to my parents
    - Code came on again
    - Local mechanic thinks, Merc need to have it
    - Local mechanic said battery test said 80% ok

    I can find the code online listed as - 102100 / 'Control module has an internal error' But is this a genuine battery issue or something more serious due to the remap?

    Thanks guys and gals for your responses.

    Dan
     
  2. kid-jensen

    kid-jensen Senior Member

    Messages:
    925
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    Joined:
    Nov 13, 2002
    Location:
    Epsom Downs, Surrey
    Your Mercedes:
    Ml320CDI 2007
    Bought a battery for my ML a few months ago (Varta) for about £100 and it cured various transmission problems I'd had for months.

    £100 is a pretty cheap for a diagnosis. If it fixes your problem it will also be a cheap fix.

    You'll need a new battery sooner or later anyway...
     
  3. bembo449

    bembo449 Senior Member

    Messages:
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    Joined:
    Jan 2, 2012
    Location:
    gainsborough , lincolnshire
    Your Mercedes:
    w221 320cdi , r170 230k , land rover discovery 3 , insignia vxr , shitron dispatch
    so the car was ok before the map or did you not drive it very far before the map so the EML hadn't had chance to come on ?
     
  4. OP
    Daniel Smith

    Daniel Smith New Member

    Messages:
    4
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    3
    Joined:
    May 27, 2019
    Your Mercedes:
    ML350 Bluetech (2012 W166)
    Yes it was ok before the remap. I've had new battery today and so tomorrow I'll do a long run. It normally comes on after 1hr 45mins. So a long run tomorrow to test.

    Thanks,
    Dan
     
  5. Georgian N

    Georgian N New Member

    Messages:
    2
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    0
    Joined:
    Jan 28, 2020
    Your Mercedes:
    W221 S350cdi 2009
    Hi! Have you fixed the car?
     
  6. Wighty

    Wighty Senior Member

    Messages:
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    Joined:
    Aug 4, 2016
    Location:
    Sunny Essex
    Your Mercedes:
    W211/E320cdi/2009 and CLK200k 2009
    He hasn’t been seen on the forum since July buddy , I take it you have similar issues
     
  7. Georgian N

    Georgian N New Member

    Messages:
    2
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    Joined:
    Jan 28, 2020
    Your Mercedes:
    W221 S350cdi 2009
    Not me, but i have a friend with the same problem, and no one knows what the problem is.
     

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