How to Replace the Battery in an MG Car Remote?

[CarmenRose]

Here are the steps to replace the battery in an MG car remote: 1. Pry open the back cover with force. Press and push the button battery forward to remove it. 2. Place the new battery into the circular slot and ensure it is fully secured into the tail slot to guarantee proper and complete contact with the circuit board. 3. Reattach the back cover of the remote key and press firmly. Check that the gaps around the edges are even. Here are some precautions: 1. Do not place the car smart key near electronic devices. Frequently keeping the smart key and mobile phone together may cause malfunction, as the chip inside the smart key can sometimes be interfered with by the phone's frequency, leading to temporary failure of the remote function. 2. Avoid rough handling. If the smart key gets wet, do not shake it vigorously, as this may cause water to seep into other critical circuits. Also, avoid immediately using the remote to unlock the car, as this could burn out the circuit board.

[AsherMarie]

I recently replaced the battery in my MG car remote, and the process was quite simple. First, look at the back of the remote—there’s usually a small gap or screw hole. Use a thin plastic tool or a small screwdriver to gently pry open the casing, but avoid using too much force to prevent damage. Once opened, you’ll see a round coin-cell battery, typically a CR2032. Note the positive and negative orientation, as the old battery might be loose and easy to remove. Align the new battery properly, ensuring it sits flat without tilting. Press the casing firmly when closing it, then test the remote by pressing a button to check if the key light turns on or if the locking function works. If you’re unsure about the battery model, check the number on the old battery and buy the same one—they’re usually available at supermarkets or auto parts stores. Handling this small task yourself saves time and money, but if the casing is too tight, don’t force it; it’s safer to have it replaced professionally for a small fee.