With all due respect....

1) Why the condescending comments...I mean "really". Please give a direct answer why they seem to be required!

2) Why does MB and many other mfgs offer a 80*C & an 85*C thermostat versions for the 603 if it aint gonna mean a hill of beans in the end? Furthermore "Tropical Cooling" systems for arid climate markets with 70*C & 75* thermostats. And ya we understand optimum combustion, smog control, fuel economy etc. Please explain!

P.S. I think it would be safe to say we'd all love a brand spanking new factory motor and cooling system if dropped in our lap at no charge.

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1986 300SDL 440,xxx