tryan,
I agree springs begin to fail from day one. This one is a bit scary however.
Stopped by the dealership en route to work this morning. The service writer and tech were both (pardon the pun) shocked at the failure but since the MB rear shocks are sold as a complete unit, they couldn't help me with a parts warranty. No biggie. The looks on their faces was rather enjoyable I must say...
I'm considering installing a set of H&R or Eibach coils in lieu of sourcing just one coil.
The saga continues..