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How to Replace the Key Battery on a New Volkswagen Passat

Model: Volkswagen Passat B8, 3G, MK 8 - Years 2014-2023
Part: Key

If the smart key for your new Volkswagen Passat has suddenly stopped working and you want to replace the battery inside, follow these steps. First, take the key and press the button on the top of the cover to release the emergency key. Next, use the emergency key to open the cover and remove the old button battery. Finally, install the new battery and correctly reassemble the cover, ensuring to insert the emergency key back in.

Updated on 13 June 2026 by ScegliAuto

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