What are the steps to replace the battery in an older Mercedes CLC180 key?

[IanMarie]

Here are the steps to replace the battery in an older Mercedes CLC180 key: 1. First, pull the tab at the rear end of the key to remove the mechanical key. 2. Insert the mechanical key into the side slot of the key groove, press the internal gray button, and with the other hand, push the rear end of the key upward. When a gap opens, you can remove the mechanical key. 3. Then, use your hand to remove the rear end, at which point you can take out the old battery. 4. After replacing with a new battery, reinsert the key holder, completing the battery replacement. Additional information: The lifespan of a Mercedes key battery is generally two years, while the original factory battery can last up to six years. When the key battery is low, the Mercedes vehicle will provide two types of alerts: one is that after pressing the ignition switch, the Mercedes dashboard will display a message to replace the key battery.