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How to Program the Key of a Smart Fortwo 450

Model: Smart Smart 450 - Years 1998-2007
Part: Key

In this video, learn how to adapt a Smart key that no longer works. By following this simple procedure, you can get it working again without complex tools. Unfortunately, the video is not very clear as it was filmed in low light, but the procedure is as follows: insert the key and press the ignition button, then switch the vehicle off again. Press the central locking button twice. At this point, press the ignition button again to power up the instrument cluster. This way, you can see that the key is communicating with the vehicle once more.

Updated on 21 August 2026 by ScegliAuto

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