Ford C-Max
Anyone towing a Ford C-Max Hybrid. We have trouble keeping it alive while towing. Have followed the manufacturer's instructions, been to Ford dealership (2) and no one seems to be able to help us. ...
Forum Discussion
..What navegator said. :)
This has been discussed a few times on here. Due to the way Ford's hybrid vehicles are designed, they (Cmax and Fusion hybrid) will draw down the battery when flat towing them. Tow them any longer than a few hours, and you will have a dead battery.
I verified this with our Fusion Hybrid, by putting a clip-on digital ammeter on the battery wire when simulating towing (key in ACC position, tranny in neutral, everything else turned off, etc.) Indeed, I found that there was an average of 3 amps of draw on the battery all the time (sometimes more).
Only way to solve this, is to just run a charge line like navegator mentioned. Thats what I did, as well as several others on here have done. 'Tis a very simple, easy, and inexpensive fix. And, it will insure you never have to worry about running down your towed vehicle's battery when towing, no matter how long/far you tow.
This has been discussed a few times on here. Due to the way Ford's hybrid vehicles are designed, they (Cmax and Fusion hybrid) will draw down the battery when flat towing them. Tow them any longer than a few hours, and you will have a dead battery.
I verified this with our Fusion Hybrid, by putting a clip-on digital ammeter on the battery wire when simulating towing (key in ACC position, tranny in neutral, everything else turned off, etc.) Indeed, I found that there was an average of 3 amps of draw on the battery all the time (sometimes more).
Only way to solve this, is to just run a charge line like navegator mentioned. Thats what I did, as well as several others on here have done. 'Tis a very simple, easy, and inexpensive fix. And, it will insure you never have to worry about running down your towed vehicle's battery when towing, no matter how long/far you tow.
