These are the old and the new engines of the 190D. My old engine died at 93k from previous overheating issues with temps averaging at 100 degees, maxing out the gauge at 120 degrees during stops and valves to not opening properly. That happened after it had new coolant, radiator and thermostat. This new engine's got 103k miles but runs at about 60-70 degrees average and hasn't gone past 100.

Old:


New: