How to Replace the Battery in a Volkswagen Car Key?

[Karen]

Open the folding part of the key, and use a flat-head screwdriver to slowly pry into the middle of the gap. When a larger gap is created, hold the key ring below and pull hard to separate the key into upper and lower parts. Forcefully pry open the side, and this part of the key will split into front and back pieces, revealing the battery section and the circuit board section. Remove the old battery and replace it with a new one.