the cost of your repair is about 10 bucks... go get the hose
from the mercedes dealer and do it your self... just a simple clamp on
either side with a screw driver...


the coolant overflow is only about 1 galon and 2 inch is only about
a quart and thats not much for a few hours... i have seen pen holes empty
the whole system in just a few minutes... so your ok... change the
hose...


then check for leaks...you should do this your self.