you could drive for years and never need a fan at all , but oner day stuck in traffic, an electric fan is more likely not to work than a viscous ,its just a matter of risk reduction ,and for the cost why not if a viscous was a £1000 and not £50 i wouldnt refit one either, as said its quite possible that you may never need a fan at all

Been saying that for ages James glad someone's on my level roll on the summer eek thats why when people say I think mine is running cool before you go into the thermostat take fan of it won't do any harm just to see if temp rises if not check stat . But others seem to think a car will overheat just becuse there is no fan stuck in traffic yes hooray :5bparty:
 
Probably but I wouldn't know how as I haven't got one to look at nor do I have the wiring diagrams.

Let me reformulate the question and not going OT: if I connect the fans of AC to dual thermostatic fan controller will be enough to dispense the viscous?
Here summer temperatures are high.

Thank you
 
Let me reformulate the question and not going OT: if I connect the fans of AC to dual thermostatic fan controller will be enough to dispense the viscous?
Here summer temperatures are high.

Thank you
which disco 200 tdi disco 2 ?but either way wouldnt a new viscous be safer unless your going wading regulary
 
If its that hot better a constant flow of cool air, Rather than relying on electric fans to come in and out.
 
Let me reformulate the question and not going OT: if I connect the fans of AC to dual thermostatic fan controller will be enough to dispense the viscous?
Here summer temperatures are high.

Thank you
PM me with an email address an I'll send you the mod I do on the P38, it ought to be easy enough to adapt it.
Despite what Defender 300tdi say's, if you cruise on the autoroute at 80mph for a while, you will need no fan, however, when you stop in the queue at the toll booths the engine will overheat almost instantly. The p38 will also overheat climbing hills with no fan and in slow moving traffic queues.
The electric fans are more than adequate for these needs and also give a quicker warm up in winter not to mention less noise.
 
And where do you get a constant flow of cool air in a hot climate?
Data don't forget the p38 has two extra cylinders and a crap cooling system i did remove my fan with me defender that has only four as its already emitting less heat and is happy to stay fanless most of the time in British weather only needing an electric fan if at stand still for long periods even tho I was happy with it as a test I would always adopt the fan fitted for safety sake as I did not notice much beneficial improvement .

As for the p38 I wouldn't even risk it myself .
 
And where do you get a constant flow of cool air in a hot climate?

Well its obviously cooler when a car is moving as the electric fans would engage while you drive , Which they don't unless your at stand still.

Where do you think air cooled is derived from!
 
Data don't forget the p38 has two extra cylinders and a crap cooling system i did remove my fan with me defender that has only four as its already emitting less heat and is happy to stay fanless most of the time in British weather only needing an electric fan if at stand still for long periods even tho I was happy with it as a test I would always adopt the fan fitted for safety sake as I did not notice much beneficial improvement .

As for the p38 I wouldn't even risk it myself .
I ran my 4 cylinder Galloper/Pajero with the viscous fan removed, my comments applied equally to both those.
The number of cylinders make less difference than the overall efficiency of the cooling system, size of RAD, power output etc.
A Di Transit will run longer without the fan at standstill presumably as it's more efficient but the sudden stop from speed is much the same.
 
Well its obviously cooler when a car is moving as the electric fans would engage while you drive , Which they don't unless your at stand still.

Where do you think air cooled is derived from!
You have it in abundance, the Op doesn't.
Hot temperatures, stationary vehicle = rapid overheat. The electric fans almost never run whilst on the move, they don't "engage while you drive"
 
It is an 92 disco 200 Tdi.
I use it "normally", or offroading, from Sahara desert to S Tomé and Principe...
(to such places I will use viscous fan!)
 
Let me reformulate the question and not going OT: if I connect the fans of AC to dual thermostatic fan controller will be enough to dispense the viscous?
Here summer temperatures are high.

Thank you

Hi!

@mbm, don´t work here in Portugal, as a replacement viscous.
(You can use it like a SOS issue, but not like a replacement).
Even "dedicated" electric fan will not work.

The RR could be smoother, do more mpg, but .......

@datatek can you send the wiring? Thanks.
 
I use Datas fan mod but instead of using the thermostatically controlled switch i use a switch in the cabin so i can switch them on if i see the temp rising
 
Hi!

@mbm, don´t work here in Portugal, as a replacement viscous.
(You can use it like a SOS issue, but not like a replacement).
Even "dedicated" electric fan will not work.

The RR could be smoother, do more mpg, but .......

@datatek can you send the wiring? Thanks.
The electric fans work fine on the diesel here in France even with the temperature in the high 30's

PM me with an email address.
 
I will do it for you if you wish. Put a copy in the FAQ section and one in the Rangie section, if yu send me the info.
As you wish, but nobody seems to look at FAQ's so I will still end up emailing it out. It's no big chore, it doesn't come up that often. I also like to make sure that people are aware of the limitations as most seem not to read the instructions either, if they contact me direct I can give back up.
PM me with an email address if you want to put it in.
 

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