S 600 Sedan (140.057) V12-6.0L (120.982) (1996)
Heater Core Temperature Sensor / Switch: Locations
The left and right heater core temperature sensors (B10/2 and B10/3) are located on the A/C housing behind the heater core.
The left and right rear air conditioning (vehicles with rear A/C) heater core temperature sensors (B10/9) and (B10/10) are located at the rear of the rear