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Replacing the Key Fob Battery on a Mazda 3

Model: Mazda 3 - Years: 2009, 2010, 2011, 2012, 2013
Part: Key

See other generations:
Video tutorial

Today, we will go through the steps to disassemble and replace the battery in the key fob of a Mazda 3. First, take the key fob and remove the physical key from inside it; use the gap to pry off the rear plastic cover, accessing the battery compartment, as shown in the video.

At this point, remove the old battery and replace it with a new one of the correct type and with the same code; insert it the right way round and reassemble the two parts of the key fob, testing its functionality.


Posted on 1 November 2026 by ScegliAuto


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Where to Find the Fuses of the Citroen C3

The fuse box of the Citroen C3 in the engine compartment is located behind the battery near the headlamp; to access the fuses, remove the cover by moving the side tabs. The fuse box in the cabin is situated at the bottom of the dashboard, above the pedals; to access the fuses, simply remove a small cover (where applicable). To replace a fuse, use small pliers to grasp the fuse to be changed and pull it out; if the bridge inside the fuse is broken, the fuse needs to be replaced; otherwise, the fuse is functioning. If the fuse needs to be replaced, use one with the same amperage to avoid malfunctions.

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by ScegliAuto

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