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Changing the Battery in Your mini cooper keys not working Key Fob

The key fob can be a convenient way to lock or unlock your car from the distance. It can also activate the panic button on your vehicle which can prevent burglaries.

If your fob isn't working, it can be fixed by following a few steps. Ensure that the battery is new. Then, try removing it from the ignition and pressing the lock button three times rapidly.

Battery

The easiest way to fix the battery of your key fob is to replace it. The fob uses a small coin-shaped 3V battery (CR2032 or CR2025) that is accessible in general stores, home improvement shops, and some auto parts stores. Make sure you get a brand new mini key battery -- old batteries are often not useful anymore and can damage the circuit board.

Start by opening the fob. It may be necessary to make use of a flat screwdriver to break the two halves. Fit the screwdriver in the seams on both sides of the fob and lift the clips that hold it. These are easy to break therefore, proceed slowly and with care.

After replacing the battery then reassemble the fob and check to see if everything is functioning exactly as it should. If it's still not working, try pressing the button several times and checking that the contacts are clear. You could also try the issue with a spare fob to see if the problem is isolated to your key. If it isn't then there could be a different reason for why your key fob isn't working. For instance it could be because the button is worn out. This would only cause the button to function at times, not always.

Interference

The key fob is powered by a tiny transmitter that transmits a short-range signal to a device in your car. Its goal is to enable your car to recognize the key fob, unlock its doors when you approach it and start when you press the ignition button.

Interference can interfere with communication. For instance, if are using your second-generation Apple Pencil charged while you're holding the fob, it might prevent you from unlocking the car (via iGeneration).

Other electronic devices operating on the same frequency could also interfere with the fob's signal. Garage door openers or tire pressure monitoring devices can be affected. Even a transmitter at your home could be interfering, but this isn't easy for a professional to test.

Your key fob may also need to be reprogrammed. This requires the transmitter in your fob to be recognized by the receiver inside your mini one replacement key, and a unique code is used for each pairing. The fob needs to be programmed after they are disconnected or replaced, if purchasing a new one or in some cases, when the battery is changed. Follow the instructions in the owner's manual to reprogram a key fob or ask a dealer for assistance.

Faulty chip

Modern electronic key fobs offer more convenience and functionality than traditional manual keys. However, they are also more vulnerable to damage. A damaged chip is one of the most frequent issues that can stop the key fob from working properly. This is usually a straightforward fix.

If your car key fob fails to turn on, it could be the result of a faulty chip. The issue is usually solved by replacing the battery that is inexpensive and simple to find at any hardware store or big box retailer. Make sure you purchase a replacement battery that is compatible with your particular model of vehicle to avoid any further problems.

It is also important to ensure that the fob isn't exposed to water or soapy residue. The presence of water can cause corrosion, which can cause problems with the circuit board. If this is the situation you'll need to wash the board with isopropyl and electronic cleaner prior to installing the new battery.

When the old battery is replaced, it is a good idea to test the functionality of the fob before driving the vehicle. Check the voltage of the new battery with an voltmeter and make sure it is safe. If not then you may need to replace the entire remote chip. A certified technician from a dealer can help determine the best solution for you vehicle.

Reprogramming

We have a brand new replacement slim key fob available to replace the old one, it works exactly the same way as the original key fob, full fitting instructions are included with each order and we also have a helpline for all customers.

Often, your Mini Cooper spare key cost-key fob will start to malfunction or cease to function completely. This can happen due to many reasons and it can be very stressful as the vehicle will not start and you'll need to wait for a long time to be able to drive again. However, reprogramming the key fob could be the solution and is easy to accomplish.

First, make sure the battery inside your key fob is functional and hasn't had to be replaced. After a new battery has been installed, it is not able to be programmed again and will need to be replaced.

Once the key fob has been programmed, it will be able to communicate with the vehicle and manage every function, including the radio, the air conditioning system and even the windows and sunroof. It can also activate the comfort access feature that means that the driver's door will open and close automatically when you enter the vehicle and the seats will adjust to allow you in and out. The key fob can then adjust the mirrors, the radio and the climate control settings to suit your preference.