I had to replace the brake light today for the first time in my FD hatch.
I followed the instructions to remove the 3 screws behind the tiny latches and removing the screwed in rubber stopper that hold the tail light in place. I then had to pull the whole assembly off.
I noticed there were 2 metal 2cm rods which guide the light to sit correctly, I managed to remove the lower one but couldn't get the top one out. As I was pulling and yanking, the top of the tail light plastic was rubbing on the metalwork and making a terrible noise. I was afraid to give it a big yank out in case there were any clips behind the assembly which I might break.
Anyway, eventually I just managed to squeeze my hand in with it half detached and changed the bulb.
For future reference for anyone who's done it, do I just use more brute force? My yanking so far has managed to scratch the paint in 2 locations around the tail light assembly.