How to Replace the Battery in a Magotan B8 Car Key?
2 Answers
First, pull out the mechanical key by gently pushing it out from the side. You can pry open the key shell from a seam on the side of the key. Note that this is on the side with the Volkswagen logo. Once the entire cover is opened, you can see the battery inside. Next, remove the old battery and replace it with a new one, then close the back cover.
Replacing the battery for the Magotan B8 car key is actually quite simple. I often do it myself, saving a lot of money. First, confirm the key type—some have a mechanical key head that needs to be pulled out or the back cover pried open. There's usually a small gap; use a thin tool like a coin or small screwdriver to gently pry it open, avoiding metal tools to prevent scratching the casing. Inside the battery compartment is a coin cell, typically a CR2032 model, which costs just a few bucks at supermarkets or online. When replacing, ensure the positive side faces up (marked with a + sign), press the new battery firmly in place, then snap the cover back on. Finally, test it: press the unlock or lock button to check if the indicator light or car responds, confirming success. The tools aren’t complicated—just handle gently and don’t rush, as the plastic casing is fragile. Battery life lasts one to two years; slow response in cold weather signals low battery. Regular checks help avoid failure at critical moments.