How to replace the battery in a Mercedes GLC260 key?

[AngelinaRose]

Press the switch and pull out the mechanical car key upwards, then pry open the key along the edge gap, remove the old battery and install a new one, then reassemble the key. Below is relevant information: 1. Remote control failure: The internal circuitry of the key is relatively fragile to impact and can easily be damaged by severe collisions. Another scenario is if the key gets wet; if water seeps inside and damages the circuits, it can also cause the remote control to malfunction. 2. How to determine if the battery is dead: The remote key's control range is within 50 meters. When the remote key's battery is low or dead, the dashboard will display a message such as "Remote key battery low, please replace the battery." During the replacement process, be careful not to damage the internal circuitry.