Difficult Job this one, Manual says to remove the front bumper and inner wheel arches to get access to the Headlight retaining bolts, I managed to change all the Bulbs to the upgraded xeon type last week without all that work, Remove the cover on the back of the headlight, it is held on by a large clip, Move the clip upwards, it is sort of hinged, and the cover will loosen, it is located at the bottom by two lugs which locate in two slots at the bottom of the headlight unit, wriggle it a bit and once the cover is removed entirely you just have enough room to get one hand in to change anyone of the bulbs, the Headlight dipped or main beam bulbs are held in situ by a clip, fiddly to do but possible, the side light bulb holder just pushes in to the light unit, when replacing the cover, which is the hard part, make sure the side light bulb holders haven't been disturbed ie give them a quick push in,, look down the back of the headlight unit to see/find the two slotted holes where the cover lugs locate into, Be patient as it is fiddly and when the cover locates in the holes, the cover will fit snug in its recess then the large retaining clip will push back down to hold it on , Job done, Good Luck
shazzy060, November 2007