Fan BL@@dy tastic :(

Gaz · 04-07-09, 08:13 PM

I was at the lights in town today when I noticed the water temp was very high, infact almost on the H, I thought to my self, oh, something's not right?

I better pull over. before i could do anything steam started pouring out of the engine bay.

And only THEN did the red light on the dash board start flashing at me.

I pulled the car over, switched of engine off, popped the bonnet to see water EVERYWHERE.

basically due to some heath Robinson wireing to the fan, one of the wires had come off and so she boiled over.

I reconnected the wire, turned the interior heater fan on in the car full blast, and went to get some water. let it cool down for a bit, & re filled the rad.

started her up again and watched on tick over as the temp climbed higher and higher.

So it seems the fan isn't coming on any more.

I don't know if its the fan that is goosed, or a sensor or another electrical fault.

I'm hoping the engine is OK, but what i want/need to do now is hot wire the fan so its on all the time, or maybe put a switch on it.

What two wires do i need to cross to turn the fan on?

I'm not happy.

4v6 · 04-07-09, 08:32 PM

Just short the two on the rad fan switch and itll run all the time Gaz.

Gaz · 04-07-09, 08:35 PM

excuse my ignorance, but where is the switch?

Micky · 04-07-09, 08:37 PM

its now an air lock the rad has to be hot at the bottom where the switch is to work

just re blead the system with the heator controll on hot in the car so the water cerculates fully .this should cure the problem

Gaz · 04-07-09, 09:05 PM

Quote:

Originally Posted by 4v6

Just short the two on the rad fan switch and itll run all the time Gaz.

Quote:

Originally Posted by Micky

its now an air lock the rad has to be hot at the bottom where the switch is to work

just re blead the system with the heator controll on hot in the car so the water cerculates fully .this should cure the problem

thanks guys.. i did wonder if it had something to do with the water level, because when i checked it the second time the water had gone down.. and after topping up i could 'feel' it in the hoses.

I didn't hear the fan kick in since, but its temps not got above half way since its happened, so i just wanted to make sure.

cheers.

this car seems to have had a few 'little' things go wrong that amount to potentially serious damage.

04-07-09, 08:32 PM	#2
4v6 Ex Member Classic Audi Club Member Join Date: Dec 2007 Posts: 5,565	Just short the two on the rad fan switch and itll run all the time Gaz.

04-07-09, 08:35 PM	#3
Gaz Senior Member Join Date: Jul 2007 Location: Five Cylinder heaven Posts: 1,494	excuse my ignorance, but where is the switch?

04-07-09, 08:37 PM	#4
Micky Mr Fifty Thousand! Classic Audi Club Member Join Date: Apr 2008 Location: Birmingham Posts: 8,738	its now an air lock the rad has to be hot at the bottom where the switch is to work just re blead the system with the heator controll on hot in the car so the water cerculates fully .this should cure the problem