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Green/violet gel in 12v battery comparment

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7 replies to this topic

#1 OFFLINE   vitmas


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  • My C-MAX:2014
  • Current Vehicle:volvo

Posted 02 September 2018 - 09:42 PM



I found lots of green/violet gel substance in 12v battery compartment and around. What can be that? HVB on inverter  coolant? But aren't they only air cooled?

Cmax energi 2014.


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#2 OFFLINE   Levi Smith

Levi Smith

    Energi Member

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  • Region:U.S. Northeast
  • LocationUpstate NY
  • My C-MAX:2013
  • Current Vehicle:2013 C-Max Energi 303A W Panoramic Roof

Posted 03 September 2018 - 06:00 AM

Definitely shouldn't be any sort of coolant back there.

#3 OFFLINE   fredf


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Posted 08 September 2018 - 10:04 AM

Is there some on the right hand side to the right of the red wire below the green wire?

#4 OFFLINE   fotomoto


    Energi Member

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  • LocationSouth Texas
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Posted 09 September 2018 - 07:20 AM

The HV battery is not liquid cooled.  The inverter is but it's not back there.


Have you owned the car since new?  Has it ever been detailed/cleaned in that area?  Have you tried a smell/feel test?


Could be a 12v battery leak but that should smell like rotten eggs and exhibit performance issues.

#5 OFFLINE   komptonwhitey


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Posted 10 September 2018 - 03:27 PM

Silly question but...

You didn't have a gel battery in there, did you?

#6 OFFLINE   vitmas


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Posted 10 September 2018 - 11:24 PM

I bought this car on car auction with "mechanical" damage title. But the only damage I could find was totally dead 12v battery and this gel :) The 12 battery was original Motorcraft, not gel or agm.

#7 OFFLINE   jzchen


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  • Region:U.S. Pacific Coast
  • LocationArcadia, CA
  • My C-MAX:None
  • Current Vehicle:2018 Honda Clarity PHEV

Posted 11 September 2018 - 04:43 AM

I forget exactly what color the battery leak detector is, but that is probably what it is.


OEM Ford coolant is orange, and as mentioned not circulated back there.

#8 OFFLINE   rbort


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  • My C-MAX:2017
  • Current Vehicle:Cmax Energi Titanium with Moonroof

Posted 11 September 2018 - 06:20 AM

Well, for starters just clean it up, put a new battery in there, and see how things go.



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