cupra 180 fan issues please HELLLLLLP!

[pixelkiller77]

hello guys hope someone can help me with my problem

I have just bought my leon cupra 180 and at first was very chuffed with it but this past week its been nothing but an headache. I have the problem with the low speed fans which after some searching on this forum found some usefull info on fixing it.So started with the resistor mod, all wired in heatsinked and mounted as described but it didnt cure my problem. Fans still pulsed on and off on high speed.I then tried testing procedures of fans by hooking up a 12v supply from battery and hey presto fans work fine low speed and high. Then moved to thermoswitch test, bridged connector 1 an 2 and low and behold fans spin up nice and slow,bridged 2 an 3 with ignition on and boom high speed perfect so then i thought yes all the circuitry is fine its just the thermoswitch which is at fault so got a new thermoswitch fitted it in with high hopes only to find nothing still they only pulse on high speed on and off. One thing it tells me is im no better off £70 quid down the line but at least the resistor mod did its job. The only thing left is the fan control module to try but am reluctant because of the thermoswitch test which showed the circuitry to be working the way it should, so still my poor little cupra sits on the in laws drive and im on foot lol. Hope someone outhere can shed some light on this cos i searched and searched and cant find anyone who didnt fix it at the resistor mod stage


thanks in advance

 

[Guizado]

Hi sorry im not gonna be of great help im afraid but you never know.

I found this website here http://www.billswebspace.com/VWMKIVFanProblem.htm

I might not help or it might help alot of talk about the fuseson top of the battery.

Lastly these engines are on alot of cars, so you might want to try http://uk-mkivs.net/ or some other VAG group forums.

Sorry thats all I can do to help mate, Good Luck.

 

[cleverspoon]

I persume you mean the fans pulse on and off with the ac on? If the fans run in low speed when you short out the thermoswitch then you know the fans are ok.
I think it does sound like the control module....under the battery some where. You could try a 2nd hand one before splashing out on a new one.

 

[pixelkiller77]

Update

thanks guys for the comments it turns out it was the fan control module changed it out and wallah! fans working pukka at last.