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B-Class Electric Drive Forum

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  1. A

    DC/DC not charging 12v battery (Gateway Comm Issues?)

    Howdy folks, I've got quite a bit of experience working on the B-Class (rebuilt lots of drive units, replaced OBVCs, etc.), however I've come across one that has a bit of a puzzling issue that I've never encountered. When the car is started, the DC/DC converter does not power on to charge the...
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