1. Open the boot by pressing the button on your key or by pulling the lever in the passenger footwell.
2. Locate the brake light cluster. It is on the side of the boot, behind the rear light assembly.
3. Turn the bulb holder anti-clockwise to unlock and remove it from the light assembly.
4. Press down on the old bulb and turn counter-clockwise to remove it from its holder.
5. Insert the new bulb into the holder and turn clockwise to lock it in place
6. Repeat steps 3-5 if required.
7. Reinsert the bulb holder and turn it clockwise to lock it into place.