Car Fix DIY Videos

Discover all things BMW before anyone else! Subscribe now to BMWBLOG car channel 👉http://bit.ly/bmwblog_subscribe

In this video, we will show you how to replace the 12V battery in your BMW i3. One of the first signs that your BMW i3 has to be replaced comes through through the instrument cluster which will display a “Battery discharging while stopped” message. Of course, you can always head over to your local BMW dealership to have the battery replaced, but some of us enjoy the DYI process. As always, this is just a guide and in no form or shape a recommendation to replace your own 12V battery. 

If you’re still interested in doing the work yourself, our own Chuck put together a comprehensive video taking us through the entire process. We used the Remy 12V Battery AUX18L which costs around $140 and the iCar Pro OBD2 Diagnostic Interface. You’d also need the Bimmerlink App from the App store for iPhone/Android. 

Links to products:

iCar Pro OBD2 Diagnostic Interface – https://amzn.to/3AsbCCc
Bimmerlink App – https://www.bimmerlink.app/
Remy 12V Battery – https://remybattery.com/start-stop-aux18l-auxiliary-battery.html

00:00 Intro
00:58 Remove covers
01:05 Remove Frunk Storage Bin
02:00 Disconnect high voltage safety connector
03:18 Remove metal bracket
03:45 Remove Battery Vent Tube
04:00 Remove Windshield Wiper Fluid Fill Tube
04:52 Disconnect Battery Terminals
07:00 Remove 12V Battery
07:15 Remove Brass Terminals and transfer to new battery
09:41 Move new 12V Battery up into frunk on battery tray
11:30 Reattach Battery Positive and Negative Cables
12:50 Move into final position, install Vent tube
14:00 Move to cabin and use iCar to register new battery

#bmwblog #bmwi3

This video only contains tips and recommendations that could be helpful when carrying out car repairs or replacing parts. BMWBLOG is not liable for any harm, injury or property damage incurred while carrying out repairs or replacements, that are a result of incorrect use or misinterpretation of the provided information. This video is for informational purposes only and does not guarantee achievement of a specific result. The user is personally liable for incorrect use of repair equipment, tools or car parts, in particular, when this use poses the risk of injury. BMWBLOG strongly recommends being careful and adhering to the safety rules when doing any repair or replacement.