Learn how to replace the battery in your MINI key fob with this easy step-by-step guide.

Are you suddenly looking for answers on how to change battery in MINI Cooper key fob?  You can take a sigh of relief, our step-by-step approach is here to help you restore your MINI Cooper comfort access keyless entry. Follow along so you can get your MINI Cooper key fob back in working order and on to your next drive.

Even if you don’t consider yourself tech-savvy, you will be able to change battery in MINI key and have better insights on what actions to take. It’s time to pair your style with sharp know-how on your MINI key fob. Let’s dive in.

What You Need for MINI Key Battery Replacement

Before you start with the steps of how to change a MINI key battery, check your key fob type as MINI Cooper key fobs vary by model and year.

Here are a few items to have available so you can begin your MINI cooper key fob battery change task:

1. Choose the Correct Battery: If you do not have a rechargeable key fob type (see the section below), most MINI Cooper key fobs use a CR2032 or CR2450 3V lithium coin battery.
2. Use the Right Tools: A small flathead screwdriver or a thin prying tool can help open the fob without damaging the casing.
3. Clean Cloth or Compressed Air Can (Optional): Use a cloth to wipe down and remove any fingerprints or debris on the battery and contacts, while the compressed air lightly cleans out the contents of the battery compartment.

Identifying the Correct Battery Type (CR 2032)

If you are unsure of your MINI key fob’s battery requirements, verify whether you have a standard key fob or a sealed rechargeable type before buying a battery. You can check your MINI’s owner manual for details. This is crucial to note as you may have a rechargeable key fob.

Fun fact: MINI Cooper introduced rechargeable key fobs with the 2nd generation (R56) models, produced from 2007 to 2013. These key fobs do not have a replaceable battery and are charged wirelessly when in the ignition – however, each issued key fob needs to be used about twice a year to maintain its charge. From 2014 onwards (F55, F56, F57 models), MINI switched back to key fobs with replaceable coin cell batteries.

How to Change the Battery on a MINI Key: Step-by-Step

Once you have determined your MINI key fob and battery type, you can begin changing battery in MINI key fob. Follow the 8 steps below and use the visual for added direction.

STEP 1: Locate the Button on the Back of the Key.

Look for a small button on the back of your MINI key fob. This button releases the emergency key and is usually easy to find near the bottom edge.

STEP 2: Press the Button to Eject the Emergency Key.

Firmly press the button while pulling out the metal emergency key – this is used to manually unlock the car if needed.

STEP 3: Take the Key and Insert it in the Gap Below.

Find the small gap near the key slot. Insert either your emergency key or your tool of choice gently but firmly into this gap to help pry open the key fob cover.

STEP 4: The Cover is Removed.

Once the key is inserted, carefully lift the cover to expose the internal components. You may need to apply slight pressure – but be cautious to avoid breaking any clips.

STEP 5: The Battery Lid is Removed Using the Emergency Key by Putting it in the Slot and Raising it Exposing the Battery.

Locate the battery compartment lid inside the key fob. Insert your emergency key or tool into the small slot. Then, gently lift or twist to pop open the lid, revealing the battery.

STEP 6: The Battery is Removed and Replaced Making Sure the Battery is Placed According to the Terminals.

Carefully take out the old battery. Now, you can choose to lightly clean out the compartment using the cloth or compressed air can. Then, insert the new battery, making certain the positive (+) and negative (-) terminals are aligned correctly.

STEP 7: Put Back the Battery Lid. Put Back the Cover.

Snap the battery lid back into place and reattach the key fob cover by pressing down until you hear a click.

STEP 8: Insert the Emergency Key.

Finally, slide the emergency key back into its slot, ensuring it locks into place properly.

Now the Key is Ready for Use.

You just navigated how to change MINI key battery – your MINI key fob is now ready to use.

Common Issues and Troubleshooting

After working through your changing battery in MINI key fob action, your key fob should resume its functions. However, there is a chance you may experience some slight setbacks due to improper battery placement, unremoved protective tape on the battery, or debris or damage inside the key fob’s internal compartment. Read through our tips below to run through ways to restore your MINI Cooper’s key fob functionality.

Testing the Key’s Functionality After Battery Replacement

To see whether your MINI key fob battery change was effective, try running a test. This step will help you check if your key fob was experiencing a depleted battery or a further concern. Start by pressing the lock, unlock, open trunk, remote engine start, window and mirror control buttons. If there is no response, confirm if your battery is positioned correctly and the key fob cover parts were completely snapped together.

Solutions for Potential Key Problems

If there is no response from your MINI, your key fob may be experiencing another type of error. Try reprogramming the key fob with the below steps or consult a professional to check for possible mechanical or electrical issues. To give yourself a sense of security with future key fob hassles, you can install Ghost Immobilisers to deter any kind of car hacking, key-cloning, or unwanted access to your MINI Cooper.

Maintaining Longevity and Optimal Performance

Once you manage to change battery MINI key fob, you can extend the MINI key fob’s lifespan by checking the battery often, replacing it when the signal weakens, and taking a few proactive steps.

Regular Battery Replacement Intervals

Your MINI key fob battery can last between 2 to 5 years, depending on usage – but to be proactive, you can change the battery every 3 years. Be aware of any decrease in range or functionality, as this indicates the battery might need replacing soon. Replacing the battery regularly will help prevent unexpected key fob failures, keeping your MINI comfort access keyless entry as smooth as possible.
Tip: If you ever need to consider replacing your MINI’s key fob, explore these car key prices.

Additional Tips for Key Care and Maintenance

Give your MINI’s key fob a better chance at a prolonged lifespan by:

• Avoiding Excessive Use: Only use the key fob as necessary. Try locking or unlocking your car with the physical key if possible when you’re near your MINI.
• Using Proper Key Fob Storage: Keep the key fob dry and in a cool place when not in use. Avoid exposure to extreme temperatures or moisture.
• Separating from Electronics: Keep electronics or devices that emit strong electromagnetic fields away from the key – these could drain the battery.
• Wiping the Key Fob Regularly: Gently clean the fob using only a microfibre cloth to remove dirt and residues.
• Changing the Battery Early: If you notice signs of a weakening battery (reduced range or slowed response), change the battery before it dies.
• Using a Key Fob Cover: For added reinforcement, use a protective cover to prevent damage from accidental drops or scratches.

Tip: To buffer your MINI Cooper’s key fob against accidental damage, safeguard it in a protective case to shield it from scratches and wear – and for added assurance, have a set of spare car keys readily retrievable.

FAQs

How to start a MINI with a dead key fob?

You  can start your MINI by pressing the button to release the failsafe key. Insert the failsafe key under the door handle slot, pull the cap off the handle and find the keyhole to unlock the car. Then, hold the back of the physical key up to the picture of the key on the steering column, then press the break and the start button to start up your MINI.

Can I change my MINI battery myself?

Yes, you can change your MINI key fob battery yourself. Using a flathead screwdriver, open the key fob casing and then also remove the internal battery cover. Then, remove the old battery and replace it with a new CR2032 3V lithium coin battery. Ensure the battery is facing the terminals correctly and then reassemble the casing.

How to reset MINI Cooper key fob after battery change?

Insert your key fob into the ignition slot or have the key fob in the car with you. Without starting the car, turn the ignition to the “ON”/ “ACCESSORY” position, turn it back to “OFF”, and then take it out of the ignition. Then, press and hold the unlock button while pressing the lock button 3 times within 10 seconds – the car doors automatically lock and unlock as the MINI pairs and syncs with the key fob.