Gotta love the 190
Yep, great car had mine for 9 years and almost 100,000 miles. Car is great on fuel! I currently get 470 - 490 miles betwen fill ups. Have not done the math in some time, but I expect a little over 30 mpg. And I drive it hard with little or no expressway time. May want to check that air/fuel filters have been changed within last 15,000 miles. I change all filters once a year including transmission.
I thought so much of the car, and wanted more space for trips weekends, I bought a 87 300SDL for a weekend driver 5 years ago. The S class gets 24-25 mpg.