Question, was the weather drastically different? As in was it raining the day it ran badly?
Reason I ask is that forever, the 408(360 based) in my w200 would do that. Every time the humidity was super high or it was raining, thing was a stumbling mess. Finally replaced the ignition box(which was a new one to begin with) and that solved the issue
No, the weather has been very nice. Humidity is low based on our location. It's been acting up with either a replacement box or the one that was installed for years (known good).
