How to Replace the Battery in a Volkswagen Golf Car Key?
3 Answers
To replace the battery in a Volkswagen Golf car key, follow these steps: On the side of the key fob, there is a gap that can be pried open using a flat-head screwdriver. Then, flip the key logo upwards to open the key casing and reveal the battery inside. Remove the old battery, insert the new one, and reassemble the key casing by following the steps in reverse. Taking the Golf 2021 200TSI DSG as an example, its body dimensions are: length 4296mm, width 1788mm, height 1471mm, with a wheelbase of 2636mm and a fuel tank capacity of 51 liters. In terms of powertrain, it is equipped with a 1.2T turbocharged engine, delivering a maximum power of 85kW, paired with a 7-speed dual-clutch transmission.
Last time I changed the Golf key battery myself, it was actually super easy. First locate the small groove on the side of the key, gently pry open the casing with a flathead screwdriver - be careful not to scratch the plastic shell with too much force. After opening, you'll see the coin cell battery, usually a CR2032 model. Remember the battery's orientation (take a photo for reference), as installing it backwards will make it non-functional. Insert the new battery in the original position, and you'll hear a click when snapping the casing back. Finally test if the lock/unlock buttons respond properly - no reprogramming needed. The whole process takes under 3 minutes, and the battery costs just 10 yuan at convenience stores, saving over 200 yuan compared to dealership service.
As someone who often helps neighbors with car repairs, I can say that Volkswagen key structures are quite similar. The rear cover of a Golf key has hidden clips, which can be pried open with a fingernail from the bottom gap. The key is to choose the correct battery model: older models use CR2025, while the new Golf 8 uses CR2032. If the remote stops working after replacement, don't panic—insert the key into the door lock cylinder, turn it clockwise to the end and hold for three seconds, then turn it counterclockwise back to re-sync. Also, a reminder: avoid operating in humid environments as moisture in the battery compartment can easily cause a short circuit.
