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So I brought my "new" 350SD home today. A 30 mile drive, my first time driving it over anything other than the mountain dirt road where it lived. At 205k miles, the car drives and rides better than it has a right to! The power seems a bit sluggish, and I know it has an injector problem as it idles roughly but smoothes out under load, and cruised comfortably at 70-75mph on the highway. I am curious about operating temp on these cars. With an outside temp of 40f, the coolant temp stayed around 90-95c. What should it run at?
 

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W201, W212, W221, & W222 Moderator
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That seems pretty much normal. My 500SE runs between 80-85. Even on hotter days we have here its never higher than 85-90.
 
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