OK, it's Friday already so you probably won't see this in time. But I'll say it anyway. Make sure they didn't stick you with Continental tires! MB should know better than to do this on a 430, but they put Conti-Touring Contacts on my E300 and they're just awful. You may have better luck getting Michelins if there are no miles on the car.
99 E300 TurboDiesel
86 190E 2.3