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Replacement of the key battery for a Citroen C3.

Model: Citroen C3 SY, SX - Years 2016-2023
Part: Key

Let's see in today's tutorial how to replace the battery of a 2021 Citroen C3 key. The operation is very simple to do and we can do it entirely on our own in just a few seconds, but let's see how to proceed. First, using a small flathead screwdriver, we will remove the back panel of the key as shown in the video. Once that is done, we will immediately see the old battery that needs to be replaced. Now we just need to take out the old, exhausted battery and replace it with a new one. Finally, we close everything up. The required battery is the CR2032.

Posted on 3 January 2026 by ScegliAuto

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To open the bonnet on this vehicle, follow these simple instructions: first, open the driver's door and locate the lever positioned just below the dashboard, marked with an image of the vehicle with the bonnet open. Pull this lever towards you until you hear a "click" indicating the bonnet is released. Next, exit the cabin and stand in front of the bonnet to disengage the safety catch and complete the opening. To do this, slightly lift the bonnet, locate the yellow lever underneath, and pull it to the left to fully release and open the bonnet.

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