During the rebuild of my Bis I have there is a lot of sub standard parts out there so thought I would start a thread on the parts I have had problems with
The worst problems have been with the front quarter light frames which took a lot of getting right including disassembly and re-riveting of the frames not good at £45.00 each
The door window trims with the window felt on them ended up in the bin after numerous attempts to fit, these were basically too big between the corner radius's and i found them impossible to rework
One of my favourites was the headlamp retaining clips which as soon as you lay eyes on them self explode, used four to get a usable one
I feel pretty certain you can add to this list