Do it yourself
Frequently asked questions about cars and motorcycles

How to replace the battery of the 2018 Citroen C3 key.

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

The main cause of malfunctioning of a Citroen vehicle remote control is a worn-out battery. To replace the battery in a 2018 Citroen C3 remote control, we need to press the button on the side of the remote to remove the cover. After removing the cover, we take out the old battery and insert the new one; the recommended model is the Panasonic CR 2032, which is three volts. After replacing the battery, we close the cover. We then position ourselves in front of the vehicle to test its functionality. If the remote control does not work, it may be necessary to reprogram it either at a workshop or independently by following one of our tutorials.

Posted on 25 November 2025 by ScegliAuto

Video tutorial

Related tutorials

Citroen C3 (2016-2023 / SY, SX) To replace the battery in the key of your Citroen C3 latest model by yourself, simply follow the steps outlined in this new guide dedicated to you. F…
Citroen C3 (2016-2023 / SY, SX) The procedure to replace the remote key battery in a Citroen C3 involves a few simple steps. Before you begin, ensure you have the necessary material…
Citroen C3 (2002-2009 / FC, FN) To correctly replace the button battery in your Citroen C3 Mk1 key, only a few simple steps are required, which we will discover below. First, obtain…

Other guides you may be interested in

    Frequently Asked Questions

    • C3 2016-2023 - Why don't the USB sticks on the Citoren C3 work? Read answer
    • C3 2016-2023 - What does the wrench light on my Citroen C3 mean? Read answer

How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

Watch the video!


by ScegliAuto

More videos