89 300sel radiator replacement

[Flippu10]

As I was drigving home this afternoon, I heard a lodu pop in the engine bay and moments later I started to see coolant pouring out from under the car from the rear view mirror. After pulling over and opening up the hood, it looked like the upper radiator hose popped out of the radiator. As I was putting it back on, I realize that the lip to which the hose attaches broke off, leaving half of it in the hose. There's still about 3/4" left on the lip that I was able to attach the hose and drive the car home. Luckily, I was only several miles away.

Has anyone had this experience? Do I have to replace the radiator? I pulled the piece left in the hose and it just crumbled (it's plastic). Is there any posting on replacing 300sel radiators? Is it dificult?. I've replaced a radiator on a Lexus ES300 so I have some experience. Any advice is greatly appreciated.