How to Replace the Key Battery for the New Mercedes-Benz GL420-CDI?

1 Answers
AlexanderMarie
07/29/25 2:47pm
To replace the battery for the Mercedes-Benz GLC260 key, follow these steps: 1. First, press the button on the back of the key. 2. While holding the button, slide the back cover forward to open the key. The battery is located inside the slot. 3. Remove the old battery, replace it with a new one, and carefully reattach the back cover. Notes: 1. The key model for the Mercedes-Benz GLC260 is 3V CR2025. Ensure the replacement battery matches this model; otherwise, the key may not function or could be damaged. 2. For Mercedes-Benz models from 2006 to 2013, first flip open the tab at the rear of the key to remove the mechanical key. Then, insert the mechanical key into the slot near the tab to pry open the back cover. Replace the battery and reattach the cover. 3. For all Mercedes-Benz keys from 2014 onwards, the battery replacement method is the same.
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