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Replacing the Key Fob Battery for the Seat Leon

Model: Seat Leon MK 3, 5F - Years 2012-2019
Part: Key

The following steps will show you how to disassemble and replace the battery of the key fob for the Seat Leon, following the instructions below. First, take your key fob and start by removing the back cover; then, take out the battery found inside, as shown in the video. At this point, install the new battery, ensuring it is the correct type and has the same code; insert it the right way round and finally reattach the back cover of the key fob, then check that all functions are working!

Updated on 23 August 2026 by ScegliAuto

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