Citroën C3 key battery
Mk4
2024–2025- Flip remoteCR2032
How to change a flip remote battery
- Fold the blade in. On many flip keys the remote section unclips from the blade section, so look for a small slot along the seam.
- Wrap the tip of a small flat screwdriver in tape or a cloth, put it in the slot and twist gently to part the case. Keep it off the circuit board and contacts.
- Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
- Fit a new CR2032 the same way up, holding it by the edges. Leave any grease on the contacts.
- Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
- Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
3rd Generation (B618)
2016–2026How to change a flip remote battery
- Fold the blade in. On many flip keys the remote section unclips from the blade section, so look for a small slot along the seam.
- Wrap the tip of a small flat screwdriver in tape or a cloth, put it in the slot and twist gently to part the case. Keep it off the circuit board and contacts.
- Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
- Fit a new CR2032 the same way up, holding it by the edges. Leave any grease on the contacts.
- Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
- Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
How to change a smart key battery
- Slide the release catch and pull out the emergency key blade.
- Wrap the tip of a small flat screwdriver in tape or a cloth, put it in the slot the blade leaves and twist gently to part the case. Keep it off the circuit board and contacts.
- Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
- Fit a new CR2032 the same way up, holding it by the edges. Leave any grease on the contacts.
- Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
- Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
Mk2 (A51 / SC)
2009–2016- TransponderNo battery
A key with no buttons has no battery. It starts the car using a chip that needs no power.
- Flip remoteCR1620
Mk1 (FC / FN)
2002–2009- Remote head keyCR1620
- Remote head keyCR2016
- Flip remoteCR1620
- TransponderNo battery
A key with no buttons has no battery. It starts the car using a chip that needs no power.
For locksmiths · Mk4
- KeysFlip remote
- Tools confirmed10
- Transponder chipSubscribers
- Programming procedureSubscribers
Questions
Citroën C3 key battery questions
Mk4 (2024–2025): CR2032 in the flip remote. 3rd Generation (2016–2026): CR2032 in the flip remote and smart key. Mk2 (2009–2016): CR1620 in the flip remote. Mk1 (2002–2009): CR1620 in the remote head key and flip remote; CR2016 in the remote head key.