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THERMO Switch (626 Only)

Drain radiator. Remove electrical connector from thermo switch and remove thermo switch from radiator lower tank. Attach leads to switch terminals and place switch in container of water with thermometer. Connect ohmmeter to switch leads. Gradually heat water and note temperature at which no continuity exists. If temperature is not as specified in Thermo Valve/Switch Specifications table, replace thermo switch.

Thermo Valve/Switch Specifications (Temperature)

Application No. 1 Valve °F(°C) No. 2 Valve °F(°C)
GLC 66(19) 132(55)
GLC Wagon 70(21) 138(59)
626 (1) 129(54)
B2000   122(50)
(1) Thermo switch - No continuity between 59-66° F (15-19°C).