Open the bonnet and look to the left corner. The indicator bulbs are located into the side of the light - just below the line of the bonnet edge. A left twist will unlock it and it will withdraw out. The bulb is a baynet fit - push gently in and twist left to release. Bulb is standard 12v/21watt single element. Re-fitting is a reverse of the above.
Hope this helps - good luck!
Alan, May 2008