Radiator fan live

[bluemonkey]

had a look through some of the threads and cant seem to find the answer,

I have a t reg 406 hdi and have managed to fix all the ele probs except this one, when I am driving I the radiator fan wont kick in, to have to drive around with the heater on full,

does any one know what I need to connect to, to test if the fan is knackered, Ie where do I run the wires from on the battery to test it, as if I know the fan is running when live, I know the prob is some where else,

cheers

[hasler88]

There is 2 resistor type sensors to the right of the fan as you look at it. Check to see if they have corroded and fallen apart. Happened to mine and they work a treat after replacing them both quite cheap on ebay.

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[bluemonkey]

are they near top or bottom, as seem to just stare at the engine lately

[hasler88]

The are at the front at the top have to take the grill off to get to them one is black and one is grey

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[steve_earwig]

On the left here - viewtopic.php?f=3&t=20748&p=206520&hili ... ck#p206517

Sent from my... why the f*ck do I bother?

[hasler88]

Yeah those 2 sorry meant on the right of the fan as your looking at it from the front I managed to find a decent pair at the scrappy so no idea on price

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[bluemonkey]

cheers will have a look when she comes back with the car, I know there was some at the bottom in the middle, I only asked as when I fixed my cig lighter, I removed the fuse (23) and my window stopped working, but the cig lighter carried on working, lol

[hasler88]

Also check the relays inside the long box next to them, if your ac works the fan should come on or you can pull the wire from the temp sensor on the side of the block underneath the vacuum pump and the fans should come on full speed think its a green plug

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[bluemonkey]

just looked under bonnet and I aint got the boxes on the side, I got them in the middle of the 2 fans, there is 3 relays, so going to get a auto ele in, just to wire it up to live, as nothing seem to be right on this car

[steve_earwig]

Ah, that's the D8 set up, two fans run in series for low speed & parallel for high. The relay connections have a habit of corroding and the brushes can wear out in the fans.

[bluemonkey]

so what will it be, just new relays?
as fans look ok

[steve_earwig]

My fans looked ok too, the brushes were worn out on both though. Pull the relays and see what the connections look like. Check for power if you have a multimeter.