Right David, the fans (both auxiliary and clutch fans), water pump and thermo are the places to start. Add to that, make sure there aren't leaves, twigs, etc caught in the condenser or between that and the radiator. Of course, you understand that the sensor issue is unrelated to the overheating issue, right? Just coincidence.

__________________
1988 California version 260E (W124)
Anthracite Grey/Palomino
Owned since new and still going strong and smooth
MBCA member

Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

There are only 10 kinds of people in the world--those who understand binary and those who don't