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How to Replace the Key Battery on a First Series Smart.

Model: Smart Smart 450 - Years: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Part: Key

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Video tutorial

To replace the battery in the remote of a first series Smart (Smart 450), follow these simple steps. First, as shown in the video at minute 0:10, use a screwdriver to pry open the gap between the two halves of the remote shell; this will allow you to open it. Once opened, you will find the circuit board holder; the battery holder is installed on it. Remove the old battery and replace it with the new one. After completing the operation, reinsert the circuit board and close the two plastic halves of the remote with a gentle press.


Updated on 1 May 2026 by ScegliAuto


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    Frequently Asked Questions

    • Smart 1998-2007 - What to do if the key gets stuck in the Smart? Read answer

How to Open the Fuel Flap on a Volkswagen Tiguan?

To open the fuel flap on a Volkswagen Tiguan, first unlock the car using the appropriate button on the remote. This will open the car and unlock the mechanism that controls the fuel flap. At this point, apply light pressure to the left side of the flap to open it and access the cap underneath. Once this is unscrewed, you can refuel and then close everything.

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by ScegliAuto

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