This is a dual circuit sensor for Temperature Gauge (G2) & Auxiliary Water Pump (F95) (After-run thermal switch) Mounted in hose flange or thermostat housing depending upon model year.
This is a dual circuit sensor for Radiator Cooling Fan (F165) (High Speed Fan) and A/C Cut-Out Thermal Switch (F163) 4 pin green sensor with square plug
Two required per vehicle, one for each fan assembly.
These resistors are manufactured by KRIOS, an Italian supplier.
They are NOT a Chinese knock-off product.
You can buy two of these resistors for less than a VW dealer charges for only one resistor.
For early 5 cylinder models (1992-1996), these are located under each headlight
Later models VR6 models (1997-2005), they are located behind the front bumper