How to replace the battery in a Mercedes-Benz CLS260 key?
3 Answers
Mercedes-Benz CLS260 key battery replacement method is: 1. Press the button on the back of the key; 2. Push the back cover of the key forward to open it; 3. Replace the battery in the slot and then reinstall the key back cover. The Mercedes-Benz CLS260 has body dimensions of 4988mm in length, 1890mm in width, and 1424mm in height, with a wheelbase of 2939mm and a fuel tank capacity of 66 liters. The Mercedes-Benz CLS260 is equipped with a 2.0L four-cylinder turbocharged engine, delivering a maximum horsepower of 184PS and a maximum torque of 280Nm, with the maximum torque range between 3000 to 4000 rpm.
This old hand has replaced quite a few Mercedes key batteries, and it's a breeze for the CLS260 too. The key is usually the button type – just hold it in your hand, locate the seam on the back cover, and gently pry it open with a small flathead screwdriver or coin. Inside, you'll find a small CR2032 coin battery. When removing the old battery, note the positive side (dot or marking faces up), and insert the new one the same way – don't reverse it. After replacement, snap the cover back on firmly and test the unlock function by pressing the button from a few meters away. If it doesn't light up or respond, chances are the battery isn't seated properly or the contacts are dirty (wipe them with a tissue). Cheap batteries fail easily, so grab a reputable brand like Energizer from the supermarket. Key batteries typically last about two years – replace them when signals weaken, don't wait until they're completely dead.
Changing the CLS260 key battery is quite easy. Last time I did it myself in just five minutes. Hold the key firmly and look for a small groove on the back cover. Use a thin tool to gently pry it open (avoid using excessive force to prevent cracking the shell). Once opened, simply remove the exposed CR2032 battery and replace it with a new one, ensuring it's placed back in the original position with the positive side facing up. Test the buttons immediately after reassembly; if they don't work, check if the battery is inserted the wrong way. To extend battery life, avoid dropping the key or exposing it to water during daily use. It's recommended to use branded CR2032 batteries to prevent signal failure. Regularly checking and replacing the battery every one or two years can save you trouble.
