Rear lights bulb replacement

Right my knowledgeable friends, how do I replace any of the tail lamp bulbs in my 1996 Ford Transit Duetto?

Not sure what 'mark' a 1996 is but I think you have to undo thumb nuts on inside and remove the lens from outside, then unclip the circuit board/bulb holder and replace bulb, replace in reverse order.

Hi Paul, I thought this too, however I can not see any way of accessing the back of the light unit. Once I can access the back of the light unit the bulbs are in small bulb holders which twist and turn into the light unit. The problem is that on the near side the shower cubicle/thetford cassette unit is sealed in preventing access, but I have noticed a grey panel on the back of the shower wall (?). On the off side the kitchen/fridge unit is preventing access. Have looked underneath the outside of the van and cannot see anyway of accessing it that way. I am stumped!

My OH has just said for the off side you have to unscrew the lower fridge vent and take it out. Gaining access that way.

For the nearside the grey thing is right but There may be bits of wood in the way so be careful shoving your hand in. Also on one of our Duettos the metal round a cut off was left sharp.
Child size hands and elastic arms help greatly.

Brilliant, a bit of cursing may just help the situation as well I guess !!!!

Cheers

Ian