Hope someone can help with this. I believe it could be a common fault with MK5 Golf's.
My Golf is a Mk5, GT TDi, 2004.
I recently noticed a very loud noise coming from the radiator fan when I had only switched the engine on.
I have the digital climatronic air con. I have two radiator fans.
After having a look, I got the following result:
1.turned engine on.
2.turned aircon on.
3.made sure ECON is "OFF".
4.The fans do nothing then, after about 20 seconds, the one on the right-hand side as you look down (passenger side) runs very fast. This fan then
stops after a minute or 2, then starts running again at high speed.
5. The fan only runs at high speed like this when the air con is switched on. As soon as I switch the air con off, the fan stops.
Can anyone please advise or has any experience of this. Unfortunately, I don't know much about these things so I am reliant on the advice online to help me. The dealer prices for diagnosis and repair is normally very expensive.
From what I have read online so far is that a faulty fan controller or a resister fault could be the problem.
Any advice would be greatly appreciated.
Thanks,