What antifreeze did they give me?

[300holst]

In my previous post I told how I had my water pump replaced. The shop put in new anti freeze. When I got home and had a look at the coolant reservoir, I saw that the antifreeze was green! I thought that all MB approved antifreeze had a pale yellow color. The new antifreeze was really green, not that yellow-green of Prestone.

I called the shop, didn't get the owner but a mechanic told me the anti freeze they used was "phosphate free" and ok for all Mercedes. He said they bought it in 55 gal drums and used it on all the MBs thay worked on.

Questions: Does this sound right? Should I leave the new antifreeze in or change it to MB or Xerex G05?