Hi, can someone help me with this thing please, where can I buy one from in the UK, I did find a place on Amazon.co.uk but they wanted £110, and also a place on ebay, but that was from China for £12, it will be for my Ford Focus Mk1 twin front radiator fans which never seem to come on, even during the heat wave we just had.

the smaller fan is siezed up, I have some replacement fans coming, the fan switch attached to the battery box works fine, (tested in a boiling pan of water with my multimeter), I also shorted the terminals where the fan switch goes with a piece of wire and the bigger fan came on, so I know the fuses etc are ok.

I want to change this part as mine has definatly seen better days, it looks like a firly cheap part and will eliminate it from the equasion, will be changing the thermostat at the weekend, and will also attempt to change the CHT sensor once I can finally locate it.

I brought the car cheap a few weeks ago, and who ever had it before me, definatly didnt look after it, just ran it into the ground, most of the work required was just £20 here and there or less, like air filters, spark plugs, fuel filters, oil etc, the idiots even changed the front brake pads on shot brake disc's, ive since also sorted this, just got to sort the cooling system out, timing belt and a water leak from the 3rd brake light area, windows washer.

I'm curious about the fan switch you stuck in boiling water as the engine cooling is controlled from the CHT sensor.

I have attached the wiring diagram and relay locations which should be correct for your vehicle/year and would suspect relay K45 or fuse F65 as the first places to look.

If the temp gauge on the instrument cluster works the CHT sensor will be good and if it doesn't the fans should run as a failsafe of the CHT sensor failing.

for some reason I cant post links to my other thread with the pictures showing the fan switch which I spoke about, on my old Peugeot, this fan switch was screwed into the thermostat housing obviously monitoring water temp, however for some strange reason, this one on this car is cabled tied to the battery box, when I posted on these foums with this very strange setup someone replied and said it was a modification, as the engine bay gets hot.

Search for Radiator Fan Confussion, Please Help !!!! by me on these forums and you'll see the pictures of the part I immersed in the pan of boiling water and also where I shorted the pins to test the fans.

I'll check the fuses, but am I correct in thinking these fans have a varied speed, not full on or full off ? and its controlled by this resistor ?

the mk1 focus 1.8 doesnt have twin fans it has one big fan that runs both cooling and the aircon the single fan is variable speed so its on a low setting for aircon if extra cooling is needed it then goes to stage 2

not my Mk1 Ford focus doesnt, it defo has the twin fans, i'll go and take some fresh pictures in a min, why cant I post links to one of my other thread on here, contains all the pictures etc.

Like I said in my first post, the small one is siezed up, the bigger one still works, got replacements coming by courier today hopefully for those.

even the mk2 doesnt have twin fans ive not seen a 1.8 petrol having owned one with twin fans either sounds like someones put a diesel fan into the car

loads on ebay and google images if you google ford focus mk1 1.8 petrol radiator fans,

But lets face it, I think ford built these cars from other scrap parts, and couldnt decide where to put certain things, like 3 different locataions to what I know of on the Mk1 focus for the CHT sensor, between plugs 2 & 3, nope, back of the engine, unknown, behind the timing belt cover, unknown.

seems to me like everytime they release a line of these cars from the factory, something was different, or in a different location.

cht is screwed into the thermostat housing i think cant quite remember

LOL, that makes it a 4th option, but i'll have the housing off this weekend as im going to look at the state of the stat and probably change it whilst I have it off anyway, easy enough job, going to grab the 88oC stat rather than the 92 and strangley enough the 88 is cheaper at euro car parts then the 92. for the same make.

Like I said, the last owner completely neglected this car, will change what I can, kinda doing a full and complete service on it over the next few weeks.

Right, some pictures of my engine bay, twin fans, radiator fan switch which I cleaned up and tested strapped to the battery box, fuse box which looks like theres some fuses missing ??? and also possible cht sensor ???

The sensor you found looks like the Cooling fan run-on thermo switch.

It was a retro fit to some models.

If you can see the wire colours they should be Red and Green/Yellow.

As for the CHT sensor it should be shown in the attached diagram by the downward pointing arrow.

There are always empty fuse and relay positions, do you have a diagram showing fuse numbering ?

As for the fan operation, normal cooling is fan1 on and fan2 low speed (via the resistor), high speed cooling both fans run at full speed.

Ive added another picture of the fuse box, slightly modified the picture to show 3 known missing fuses, the first one I labelled as 40a missing (3rd slot down) has a fuse diagram of the fan resistor, I guessd this fuse kept blowing due to the seized up number 2 fan, the other one I labelled as all ?????????? (5th slot down) shows a picture for glow plugs, obviously not fitted to my car, and the empty 2nd slot is just empty, a spare.

will take a pict of the whole diagram on the under side of the fuse box and posty back later.

Attached is the BJB layout and the retrofit fuse F98.

As for the missing fuses identified, F2 not used, F3 & F5 are for diesel engines (glow plug system).

Looks like all the fuses for the cooling system are present in your box, just refer to the diagrams to check them out.

F64 & 65 and not shown correctly in the first diagram, this diagram shows their correct position.

heres the map on ther back on the fuse box of what should be where, I would say F3 was missing the 40a fuse as this to me looks like the radiator fan resistor speed control fuse, maybe removed due to the siezed fan, (I could be very wrong regarding this, please confirm) I have since replaced the siezed fan and am about to put them back into the car, will short the fan switch again and see if they both run.