How to Replace the Battery in a Golf 7 Key Fob?
3 Answers
Golf 7 key fob battery replacement steps are as follows: 1. First, press the button on the car key to open the remote key. 2. Find a coin (preferably a 1-yuan coin, but a 5-jiao coin can also be used) and place it in the key slot as a tool to pry open the key cover. 3. With the Volkswagen logo facing upwards, firmly twist the edge of the coin clockwise, and the key cover will easily open. 4. Use a pointed object, such as one end of a paperclip, to gently lift and pop out the battery. Note and confirm the battery model. The battery model is CR-2025, and the original is made in Indonesia. 5. Finally, replace it with a new battery and snap the key cover back into place.
You can change it with just a coin. I did it myself last time. There's a small groove on the side of the Golf 7 key—insert a coin, twist it, and it pops open. Inside is a CR2032 button battery, which you can buy at any supermarket. Be careful not to bend the spring plate when replacing it, and make sure the battery is oriented correctly, with the plus side facing up. After installing, align the cover and press firmly to snap it into place. The whole process takes about two minutes and saves you 200 bucks compared to going to the dealership. Remember to buy Panasonic or Sony batteries—off-brands tend to die in a few months. If you get stuck during the process, just record a video and post it on the forum—fellow car enthusiasts love to help out with tips.
From a watchmaker's perspective: I often help customers replace car key batteries. This key case comes in two versions - for the button-equipped version, you need to first pry open the seam with a thin tool. The key is to use plastic pry tools, as metal tools will scratch the casing. There's a small metal latch inside the battery compartment that mustn't be lost. During testing, stand 3 meters from the car and check if the red light illuminates when pressing buttons. I've encountered cases where keys stopped working after DIY battery replacement - mostly due to reversed battery contact plates or wrong battery models. While CR2025 can be forced in, it doesn't last long.