Came back here to say that I used this video today to change my battery and everything went perfectly. Thank you so much again. I love my mkz, looking forward to more years together with this car.
You might need a security code for your radio. Also, I found this note in the Chilton's manual: When the battery (or PCM) is disconnected and connected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The charging system set point may also vary. The vehicle may need to be driven to relearn its strategy.
The tool I used is shown at 1:00. It’s just like a screwdriver, but at the end you can attach a socket, in this case, an 8mm socket. I’ve also got an extension attached, since the screwdriver-type tool wasn’t long enough on its own. You just put the socket on the bolt and turn counter clockwise. This is shown starting at 0:35. That wedge is the only thing holding the battery in place. After you remove it, you can just lift the battery out.
Came back here to say that I used this video today to change my battery and everything went perfectly. Thank you so much again. I love my mkz, looking forward to more years together with this car.
Glad it helped!
Thank you for the video and the helpful replies to the other comments.
My pleasure!
I have a 2011 mKZ if you change the battery do you have to reprogram anything
You might need a security code for your radio.
Also, I found this note in the Chilton's manual:
When the battery (or PCM) is disconnected and connected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The charging system set point may also vary. The vehicle may need to be driven to relearn its strategy.
Same method for a 2010 Mkz?
The method description is the same - not sure if the battery hold-down bracket and bolt look the same though. Probably.
sO HOW DO YOU UNBOLT THE BATTERY TO REMOVE IT?
The tool I used is shown at 1:00. It’s just like a screwdriver, but at the end you can attach a socket, in this case, an 8mm socket. I’ve also got an extension attached, since the screwdriver-type tool wasn’t long enough on its own.
You just put the socket on the bolt and turn counter clockwise. This is shown starting at 0:35.
That wedge is the only thing holding the battery in place. After you remove it, you can just lift the battery out.
difficult to remove negative battery cable.... Ya that biscuit eater ain't moving....
Maybe you need a cheater bar, to get more leverage.
I bought some black iron pipe to use as a cheater bar.
Or, maybe use pb blaster spray to help loosen things up.