Southern Hemisphere. W124 260e

Thermostat is 87 degree variety.

When running over 30Kph (20mph) temperature sits at 87 degrees even on hot days

On normal outside temperature days, sitting in traffic the temp will rise to around 95 degrees when the fan clutch seems to come in and the temp will stay there.

If the outside temperature is over 110 degreesF, with a/c in operation, idling in traffic temp will go to 105 degrees - low aux fan cuts in (caused by A/C) or I operate my manual overide switch ( low aux fans) to keep the temp down to 95 degrees.