BMW 3 Series (E90, E92) Battery Replacement, Coding and Registration

The battery on my BMW 335i has been failing for months now and I finally got around to replacing, coding and registering it. It’s not a very difficult job and shouldn’t take more than an hour of your time. You will also save at least a few hundred dollars compared to taking it to a dealer or even a local shop. Shop around for batteries as I found this great battery for $100 cheaper than local parts stores or even online! I show the process of removing the battery, choosing the right battery for your car, installing the battery, coding a change if the type of battery is different or the capacity is different and even registering it to tell the car that it’s new.