hi john
the turbo engine (820 vittese) i am using and the 220 gti donor has a temp fan switch in the thermostat housing and a switch the rad for the cooling fan. The 216 rad did not have a hole in the side of the rad to take the therm switch
I do not know why I should need two but the exi loom has the wiring for both so i used them.
all the best
tony
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