The Mini Cooper was introduced in 1959. Since then the Mini Cooper has had many upgrades, one being keyless entry. If you need to reprogram a key--whether the key deprogrammed itself after a battery replacement, or if you lost your keys and need to program a new one--programming a Mini Cooper key is simple and takes only a few minutes.
Insert the newly cut key into the driver-side door's lock, but do not turn the key. There is a chip inside of the key that will sync it to the vehicle.
Press button "1" and release it immediately.
Repeat Step 2 three more times, for a total of four.
Remove the key and press the "Unlock" button to check that it has synced with the vehicle.
Insert the key into the car's ignition and start the engine. Leave the car's engine on for no longer then 10 seconds.
Turn the engine off but do not remove the key from the ignition.
Press button "1" within 10 seconds of turning the car's engine off. Button "1" is the largest button on the keypad.
Press button "2" immediately after pressing the first button. This must be completed within 10 seconds of pressing the first button.
Remove the key from the ignition.