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radiator fan

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Leaving the house this morning noticed a sound coming from my car. Sounded like the fan. Opened bonnet to find one of the fans spinning away??? Of course battery dead when tried turning over. It's now Thursday, haven't used car since Sunday!
So now, battery on charge and then try tomorrow to see if fan keeps going. Hopefully nothing too aweful to remedy, especially as I was going to Bedford to kick some tyres on Saturday!
 
This is usually caused by the fan switch, I haven't done it but I believe this is located in the radiator and is relatively cheap and easy to change. Bert gear at Berlyn has the part and will be able to advise you further.
A temporary quick fix can be to remove the fan fuse when parked.
Tony
 
Cheers Fen. Ordered switch from Porsch-apart this morning. I wondered if it was the relay but they said it would most likely be the switch on the fan. Hopefully I can get to it with out taking hoses etc. For the moment when parking taking the two fuses out, which is really convient!
 
I think (but am not positive as I've haven't had this problem - yet) that the fan switch requires the coolant to drained and refilled as the switch plugs into the radiator.

Bert will know, for sure
 
That is what I feared as poking abut looking for it, it is as you described. I pulled out a plug which has three pins which is what I'm led to believe I'm getting. Still I would like to think that it is a way of 'bonding' with my car! If it comes tomorrow, I know what I'm doing Sunday!
 
I had the same problem on mine, new switch cured it. It is a bit fiddly as the switch is located halfway down the rad (on the right hand side as you look into the engine bay from the front). Have plenty of elastoplast ready for when you scrape your knuckles against the rad fins!

PS. My first post so hello everyone!. Just waiting for membership bumph to arrive.
 
Hello Steve 944t. So do you have to drain the coolant? It is really difficult to see never mind work on.
 
unfortunately yes. You can obviously try it without draining but you will lose a fair bit of coolant and will have to bleed the system afterwards so best to drain it first. Also if you do it without draining you run the risk of rushing to refit the switch and crossthreading it.
 
Welcome Steve 944T,

How long have you had the car and have you any lovely big pics you'd like to post? Feel free to start a new thread so we can enjoy taking the mick out of Flamings skinned knuckles in this one on Monday morning [:D]
 
Hi Paul. Thanks for the welcome. I have had the car for about 6 months but have not taken any decent pictures yet! I will try to get round to it.

So come on flamingeye, do you now have flaming knuckles? I helped change a rad on a clio a while back and had perfectly parallel scratches on all my knuckles. Hurt like hell!
 
No! Did not shed any blood but sweat, tears and alot of swearing! Which joker thought it was a good idea to put the switch there!!!

Anyway, I shall begin. Bought my switch from Porsch-Apart which came the following day. Cost £18.80 with vat and delivery. Didn't get round to doing it till today, Monday.
After purchasing my de-ionised water and anti-freeze I began.

Stuck it on some ramps and took off the two undertrays to drain coolant. As at the moment I don't have a manual, I could not for the life of me find the drain! I also thought I might be able to get to the switch easier from underneath, but no way! So, I nearly gave up. After rubbing dirt off a screw head (blending it in with the rest of the shrapnel) I discovered it! One turn and the head snapped off! Second time I nearly gave up.

Biting the bullet, a quick drill and stud extractor later I got covered in coolant. So, that drained I had to remove a rad hose and the airflow box to get anwhere near to get a hand to the switch. The nut is 30mm, but you would need a long socket except there is no room to get one round it or to ratchet it. Third time etc. etc.....

Took a small adjustable, got it on the flat of the socket and thought **** it and give it a turn. Low and behold it gave, turned the rest by hand. Put new one in, replaced fuses and fans stayed off.

Turned and threaded a piece of nylon to replace the broken bolt. Bit of silicon round it, replaced it and left it to gel a bit.

Stuck it all back together, stuck the coolant in. Seems ok. Temp might be tiny, tiny bit higher, but his maybe I was looking at it constantly and not the usual glance. Didn't notice fans coming on but this maybe due to a new efficient switch and not coming on prematurely (ok I could be kidding myself) but I took it for a run (remember I live in London so a run means sitting in traffic) a few quick bursts when I could, and it didn't overheat and doesn't climb over the quarter mark.

So, I'll give it another run tomorrow but hopefully it's sorted.

Red circle shows switch position

Ge958874494.jpg
 
I have broken that bolt, decided to drill it (before inserting extractor) and it screwed all the way in - then worried it might do damage I thought I would float it out - it doesn't (float) so had to remove the rad to get it out - very annoying.
Glad yours is sorted anyway!
Tony
 
Blimey [:mad:] On the Titanic list, Bert Gear always says 'easy job - 15 quid in parts'. I really hope mine lasts a long time yet
 
Well if I had told you just how fiddly the job really is you wouldnt have bothered would you. I have saved you paying someone else to do it![:D]
Actually mine came out quite easily.
However, just imagine the frustration when 2 weeks after replacing the switch you discover that there is a tiny leak from the front of the rad [:mad:]
I now have a brand new radiator sitting in the living room waiting to be fitted. Not looking forward to that one!
 
Hi 1991 S2 did the same with low batt voltage , if i hit defost button on and off it kills fan ? dme thinks my car has aircon as its late s2 with twin fans , does this as soon as temp about 1/3 on gauge but ok if hot or cold ??????????? low volt fan clears on restart
 
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