I removed the front wheel, took off the inspection panel on the plastic wheel arch, then removed the two lower screw bolts on the remaining wheel arch liner, allowing it to be peeled back and wedged back behind the wheel disc brake assembly. This allows hand and arm access to the back of the headlamp. My bulb blew because the back of the headlight ( the round black disc ) was missing, as was the inspection panel,and I drove through a massive flood, causing water to penetrate the headlamp. Lesson learnt!
Iain, February 2011