...and oddly enough, when I had the flush and fill a couple of weks ago I also had the t-stat replaced! Sounds like you nailed that one!
I'm going to check the mixture ratio Saturday and see where it stands. I'm also going to call the inde shop and ask about the distilled water. It would not surprise me if they used it. The head Benz guy there seems to be really good. If not, I'll just do it over (myself this time) to make sure it's right.
While we are on the topic, would a shot of Water Wetter help?
BTW, what a great forum! Where else can you get this kind of info? This is like the Master Card commercial:
1993 500 SEL - $17,000
Annual maint........a XXXX-load!
Great information on how to do it yourself...PRICELESS!
1993 500 SEL 121,000
2003 Toyota 4Runner 4X4 Limited (Sweet!)
1995 Ford Bronco 351 Windsor 135K miles (Hunting truck)
1999 Landrover Discovery II 46,000 (Sold)
1998 Lexus ES300 (Sold to get my Benz)
1973 Chevy Nova SS (drove it till the body fell apart in '87)
1971 Chevy Camaro (wrecked in high school)