So I had a go at replacing the bulbs today, turned out to be a bit of a nightmare. I had a go at the drivers side first by moving the coolant expansion tank - the furthest I could get was to remove the old bulb. I found it impossible to reinsert the new bulb with one hand down the tight gap and put the plug back in and get the bulb into its socket without touching the xenon glass.
I then tried to remove the wheel arch lining - there are 3 pop pins which I got out as per the instructions but what the instructions fail to mention is there a a couple more screws behind the strut that have to be removed to get the lining out. I then tried removing the wheel but one of the wheel nuts was so tight I couldn't undo it. At this point I threw the towel in and put everything back together as it was starting to get dark.
All this hassle to change a bulb