Rear Spring Identification




What I'm looking for are the color codes on rear "lux" springs ... these would be two or three colored dots on the spring, toward the bottom. Springs don't have part numbers so they can only be identified by the color codes and I'm trying to verify which ones Mercedes used on the lux models. As best as I can tell, all models (250, 300 and 350) use the same rear springs, one type for "lux" and one for sport.
Thanks


