The twenty-seven Gs500eu 1998 (w) (e04 E22 E39) Rear Combination Lamp component parts are all listed in this schematic.
Some items from this specific schematic: Nut 6mm, Screw, Nut 6mm, Cushion.
The most reasonably priced component used on the Gs500eu 1998 (w) (e04 E22 E39) Rear Combination Lamp is the Washer(6.5x20x1.2).