How to Replace the Battery in a Changan CS75 Car Key?
2 Answers
Changan CS75 car key battery replacement method: Use a small flat-head screwdriver or a plastic pry tool to gently pry open the remote control shell, being careful not to damage the internal circuits during the process; For detachable mechanical keys, the mechanical key needs to be removed first. You can use the mechanical key to pry at the gap. Once pried open along the gap, the entire cover can be opened; After opening the remote key cover, you will see the battery, which is a CR2032 model. Remove and replace it as needed; When installing the battery, pay attention to the positive and negative polarity directions. After completion, close the key cover and press the button to test if the function is normal. The Changan CS75 is a compact SUV with body dimensions of 4650mm in length, 1850mm in width, and 1715mm in height, with a wheelbase of 2700mm. In terms of power, the vehicle is equipped with a Blue Whale 1.5TGDI direct-injection turbocharged engine.
Replacing the battery in a Changan CS75 car key is actually quite simple. As someone who frequently DIYs car repairs, I've tried it several times myself. There's a small slit near the buttons on the back of the key. Press the small button next to it and slide the back cover to open it. Use a small screwdriver or plastic pry tool to gently pry it open, but don't use too much force to avoid scratching the plastic. The battery inside is a CR2032 model. When removing it, check for the positive terminal mark (usually a + sign). Buy a new one of the same model and install it, making sure the positive side faces outward. Just slide the cover back on and lock it in place. After replacing it, I immediately tested the key's unlocking function—if the green light comes on, you're good to go. If it's your first time and you're worried, there are video tutorials online to follow, and you can use tools you already have at home—no need to spend money at a shop. Before replacing the battery, make sure the key is actually out of power, such as if the remote range has shortened or the indicator light is dim. I usually recommend checking it every two years to extend its lifespan. I always remind my friends that doing it yourself saves money and gives a sense of achievement, but if it doesn’t work after reassembly, try cleaning the contacts.
