Yes the fans come on with AC... usually if I get past 90C or so Ill cut the AC, the electrics dont come on..temp too low.
I think with those two large switches if it gets past the threshold the AC will turn OFF and fans stay ON.
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What is a rovergauge?
The temp reading you see will also depend on sender location, mine from the MadMan fitting is in the top hose which may be a few degrees cooler than the head water temp. I should move it..not really happy with it in the top hose.
Rovergauge is a program i use to connect to my car and read it real time.
https://www.aulro.com/afvb/images/im...016/03/542.jpg
Also i agree with you on the location being wrong.
If i decide to use a digital reader i will locate it on the other side of the thermostat. In my case as i run gas i can steal the hot water feed to that which comes from the mainfold prior to thermostat so a more accurate reading of engine temp i would imagine......
Ps that gauge does not do much apart from clear codes but does give some real time readings.
I see..... LOL. All my responses were in relation to a 300 Tdi. I get confused as two very different engines types in the one forum, really should be split IMO. I see the poster didnt state which engine in the original post.
I have no idea what happens re the cooling in the v8,.
http://www.aulro.com/afvb/general-ch...disco-now.html
Based on that i think he does have a 3.9 v8 on gas.