How do you change battery in 2006 mini cooper key fob?

To change the battery in a 2006 Mini Cooper key fob, first, use a flathead screwdriver to gently pry open the fob along the seam. Once open, carefully remove the old battery, which is typically a CR2032 type, and replace it with a new one, ensuring the positive side is facing up. Reassemble the fob by snapping the two halves back together until they're secure. Finally, test the key fob to ensure it functions properly.