Thermostat is where I'm looking. The car is getting warm at highway speed. This first manifested itself during my desert trip, and I wrote it off to the desert temps. Now that it is still warming up at home I will be replacing the T-stat before it decides to get hot.
Thank for verifying when the aux fan should run, looks like everything is OK there
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.