Could the ECM drain the battery? The dealership replaced the original battery in July and by mid August the battery was dead. It will not hold a charge. I noticed that the cover on the ECM is missing after having service done. It now looks corroded. Sorry to sound naive but my husband died and I'm just trying to get my 2014 Sprinter working again and I don't trust what the MB dealer is telling me. Can someone out there let me know what questions to ask the dealership? Many thanks.
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