forum.audiv8.com Foren English Audi V8 Forum coolant fan problem

hi
I'm back in the V8 troubles land

on my V8 ( '90 3.6l) , the coolant fan does not work
the fan works , because it works with the A/C on.
where is the sensor? and how the information is sent to make the fan works?
thx a lot

hello, i found a topic about this, is it possible to delete or close this one?