D5 Radiator fan - Page 2

Clan · Jun 6th, 2015, 13:30

Quote:

Originally Posted by ads001

Yes, you are right as soon as the car is moving the temp reruns to normal. With the ac on I can here a regular tick or ping every 5 seconds or so so I assume the ac is doing something, still not sure about the fan though, it's not easy to see, i do t notice a noise, should I hear it?
After reading several 'how to' guides just removed by glove box and sat nav to replce the pollen filter but it wasn't there, is it on the drivers side?

Thanks.

start the engine put ac on max cooling go and look at the cooling fan it is not very noisy on low speed you should feel the draught though or see the blades turning from behind . If the AC is cycling the pump evey 5 seconds the gas will be low and the most likely cause is a corroded condesnsor mounted between the radiator and intercooler .

ads001 · Jun 6th, 2015, 20:01

Fan doesn't turn with the ac on. Are there any checks that would narrow down the actual cause or anything that usually fails?
THanks

Clan · Jun 6th, 2015, 20:36

Quote:

Originally Posted by ads001

Fan doesn't turn with the ac on. Are there any checks that would narrow down the actual cause or anything that usually fails?
THanks

The fan is quite simple , two very thick wires in a multi plug on the fan housing one is live and the other earth so put a test light across these after unplugging it ( with ignition on ) assuming you have power and earth there it must be the fan controller . There is a third very thin wire in the plug , it comes from the engine control unit which sends digital signals to the fan controller to tell it how fast to run .

ads001 · Jun 6th, 2015, 21:48

Thanks. A big help, will check in the morning.
that and figure out why my sat nav won't pick up and satellites and currently thinks I'm 1300 miles a away in the middle of the North Sea!

Simon Jones · Jun 11th, 2015, 23:45

Quote:

Originally Posted by ads001

Thanks. A big help, will check in the morning.
that and figure out why my sat nav won't pick up and satellites and currently thinks I'm 1300 miles a away in the middle of the North Sea!

Sounds like you need new GPS aerial: http://www.volvoforums.org.uk/showthread.php?t=230193

ads001 · Jun 20th, 2015, 11:09

Update on this.
Managed to change the cabin filter, it was as Clan suggested totally blocked. I have air in the car now.
I put a meter on the supply to the radiator fan. 14v and 3v on the. O from wire so it does look like the co trolled is faulty.
Nit looked at the sat nav yet. It will check the aerial as has been suggested.
Thanks all..

Jun 6th, 2015, 20:01	#12
ads001 Junior Member Last Online: Oct 8th, 2015 06:57 Join Date: Sep 2007 Location: Chelmsford	Fan doesn't turn with the ac on. Are there any checks that would narrow down the actual cause or anything that usually fails? THanks

Jun 6th, 2015, 21:48	#14
ads001 Junior Member Last Online: Oct 8th, 2015 06:57 Join Date: Sep 2007 Location: Chelmsford	Thanks. A big help, will check in the morning. that and figure out why my sat nav won't pick up and satellites and currently thinks I'm 1300 miles a away in the middle of the North Sea!

Jun 20th, 2015, 11:09	#16
ads001 Junior Member Last Online: Oct 8th, 2015 06:57 Join Date: Sep 2007 Location: Chelmsford	Update on this. Managed to change the cabin filter, it was as Clan suggested totally blocked. I have air in the car now. I put a meter on the supply to the radiator fan. 14v and 3v on the. O from wire so it does look like the co trolled is faulty. Nit looked at the sat nav yet. It will check the aerial as has been suggested. Thanks all..

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