What is the battery model for the Mercedes-Benz E300 remote control?

[DiMackenzie]

Mercedes-Benz E300 remote control battery model is CR2025. Mercedes-Benz E300 remote control battery replacement method: Locate the button on the back of the key, press and hold this button; push the back cover forward to open it; the key battery is in the adjacent slot, remove the old battery and replace it with a new one. Reasons for remote control key failure: One situation is that the battery is dead or has poor contact; the second situation is that the time control module in the remote key fails, which can also cause the remote control to stop working; the third situation is due to aging of the vehicle's remote transmitter antenna or other reasons, which can also lead to this issue. In such cases, you can visit a repair station for inspection and repair. Additionally, some vehicles may experience unresponsive remote door locks when the front windshield is covered with explosion-proof solar film, as this type of film can partially block remote control signals.