i had the same problem until yesterday. i had the fan clutch replaced on thursday and didnt get the cooling level i wanted. i flushed the radiator with MOC fast flush and put in a new thermostat and now i am runnin comfortable around 90 degrees

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1994 C280
2009 VW Tiguan
1993 Toyota X-tra Cab SE-5


1973 220D ... Gone, but not forgotten
1991 Alfa Romeo 164L Gone, wife MADE me forget it

2006 Hyundai Tucson... just straight out FORGOTTEN!