beeewell

Can anyone confirm that getting the ACM updated actually fixes the drain problem? I read in another forum that it's questionable whether or not Ford ever had a successful fix for it.

Thank you bad decision, and all of the contributors to this post. My 2013 C-Max was plagued by this problem multiple times since I've owned it. After spending approx. $2K replacing the radio, several batteries, and diagnostic fees, when my radio died again yesterday, I was at my wits end and was ready to take whatever another car dealer would give me on a trade-in. But I found this post, pulled the 79 fuse, ordered myself a portable car charger, and feeling like I won the lottery!!! It's posts like this that really emphasize the value of information sharing on the internet.

New member of the C-MAX dead battery club here. Not much to add, but I just had the car serviced for the 1st battery failure, and dealer installed TSB 14-0155. Only time will tell if installing that TSB alone will solve the battery draw problem on my vehicle only. On another note, it seems that Ashley is not accepting new messages.