Mini Replacement Key
It may be that your key fob requires new batteries. It may also have to be programmed to work with your vehicle.
Usually, you can find this service at your dealership. You can also make contact with a locksmith. They will make use of the VIN number of your car to create an entirely new key.
Battery
The battery in your key fob might wear out and stop working over time. Replacing it is fast and simple and can be completed at home. Simply pry your fob open, remove the old batteries and then snap in the new ones. It will take some effort but you'll be driving again in the blink of an eye. Certain key fobs require an internal key blade, so make sure you include it if needed when placing your order.
Programming
The key that comes with the mini Cooper is equipped with a specific chip inside that communicates with the car to open the doors and then start the engine. It's important to always have a backup key, whether it's to replace a key or in the event you misplace yours. You might be able to locate a generic key in a hardware store but you will need a locksmith to programme it to your car to ensure it functions.

Coding is a complex and time-consuming procedure. The CAS module has to be removed from the car, and the key's information extracted by soldering. The new key needs to be programmed into your vehicle by a dealer who is authorized or a professional BMW/MINI coder. Many locksmiths will not take on the job due to this. You could also try an independent BMW/MINI coder in your area. They will utilize an ID44 programmer to connect to the BC1 module in your vehicle and read the EWS (immobilizer code) from the old key in order to program the new key.
VIN Number
Every vehicle has a VIN (Vehicle Identification Number) number that is unique to the vehicle. This VIN number is made up of 17 characters. mini key fob may seem random, but they have specific meanings and are designed to safeguard vehicles against theft and fraud.
The first three characters of the VIN code identify the location and the manufacturer of the vehicle. These are known as World Manufacturer Identifier or WMI codes. The characters four through eight provide additional details about the car including its model and features. The ninth character is a security code that proves the VIN as valid. The last character is the year the vehicle was made.
You will find the VIN number on a variety of places in your car. It is typically printed on a sticker that is visible to you when you glance at the windshield or dashboard. You can also see it on the driver-side door jamb if you open that door and examine the inside.
If you're considering buying a used car, make sure to verify the VIN number before signing the contract. A VIN decoder will assist you in understanding the VIN number so you can avoid buying damaged or stolen vehicle. VINs were made standard since 1981, but pre-1981 vehicles used the form of a different format which could be difficult to interpret.
Lockout Service
Modern key fobs come with a transponder which can disable the vehicle's immobiliser system. The chips are incorporated into the key and send an alert to the vehicle's CAS which will start the engine. This feature can stop thieves from using stolen keys to start vehicles.
MINI, a sub-division of BMW is known for maintaining high standards of style and technology. You can replace keys for any MINI model, old or new. However, this service is usually designed for drivers who own vehicles that work with key fobs.
If your key fob has stopped working, it may simply require an upgrade to the battery. If it takes longer to unlock or close the door than it normally does this is a common indication. If this is the case it is recommended to contact a locksmith local to repair the battery inside your fob. The process should take around 10 to 30 minutes. This is a much faster and less expensive alternative than replacing the entire key fob. This service is also available in the event that you've locked yourself out of your vehicle and need assistance getting back inside.