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
From 1997, up to mid 1999 model year Radiator fan run-on switch
Thermal switch / for models with
radiator fan run-on
From 1997 VIN 70-V-006 391Up to 1999 VIN 70 X 053924
Sender for models with Electronic Climate Control
2 pin-Black temperature sender / for vehicles with electronically regulated air conditioning and for vehicles with
2nd evaporator core.
Used all of 1998 and 1999
Two required per vehicle, one for each fan assembly.
These resistors are manufactured by KRAH, a well known German supplier.
They are NOT a Chinese knock-off product.
You can buy two of these 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