I continued to investigate my 560's always-on heat. I took resistance readings from the two sensors and the temp wheel. The readings from the sensors were in spec. But the readings from the temp wheel were odd:

MIN - 1.31 k ohms, spec is 1.6 k
22 deg - 5.14 k ohms, spec is 3.15 k
26 deg - 8.6 k ohms, no spec
MAX - 8.1 k ohms, spec is 1.6 k ???

My questions:

Is the MAX reading a misprint? How can low and high temp have the same reading?

Are these readings far enough out to justify a replacement of the wheel?

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe