Front Bumper Lights Repair
This is a rather painful job as the screws you need to remove to get the lens out are always rusted because of the corroding from the crap off the road. You can get them out via the back of the bumper but you have to remove the wing liners and front section where the air filter lives.
When disassembling the glass, the bolts often break off due to rust or the fastening points of the housing break off. The "metal inserts" of the original housing get stuck due to corrosion and cannot be removed, the fastening points break off. Drilling out the metal inserts is almost impossible and new units are unavailable.
Porsche 928/944 supplies new fog light housing units with stainless steel inserts. Check out their funny YouTube video