Apologies for yet another post about a dead cmax...
I have a 2013 Ford C-Max Hybrid only vehicle. In the two years I've owned it, it has been unable to start unassisted 6 times, leading to significant tow and repair costs. So far, nobody has been able to fix the problem. The very first time they found a loose relay in the trunk, and the 3rd time they replaced the battery, but five different shops including two dealerships have run diagnostics and been unable to find the problem causing this.
The last three times have gone the exact same way. All in the last 6 months, with a less than 1 year old battery. First, the audio stops working--won't turn on or off with the power button, can't play radio or connect to a phone. Screen lights up and the navigation/menu system still works fine. Then, about two days later, the car will be dead. Won't unlock with the remote, no dome lights, nothing. Twice we have jumped it, and that completely fixes it--still took it to a shop each time, but it turns on and off like a champ and shows no other symptoms/no signs of battery draw.
The most recent time we didn't even try to jump it and had it towed in dead so they could at least see we weren't making stuff up. Dealership had it for a week, didn't find any problems or offer any explanation. Just charged us for labor and diagnostics and sent us on our way.
Anyone have any experience with these problems? I'm open to all options--preventatives, maintenance, work arounds, fixes, literally anything. I can't accept that I have a 6 year old car that won't start without a jump every 4 months. Any help is much appreciated!