MG 3 key battery
Every MG 3 remote key we cover, 2013–2024, takes one CR2032.
2nd generation
2013–2024- Flip remoteCR2032
- TransponderNo battery
A key with no buttons has no battery. It starts the car using a chip that needs no power.
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.
For locksmiths · 2nd generation
- KeysFlip remote · Transponder
- Tools confirmed11
- Transponder chipSubscribers
- Programming procedureSubscribers
Questions
MG 3 key battery questions
2nd generation (2013–2024): CR2032 in the flip remote.