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(Post Link) post #1 of 9 Old 28-05-12 Thread Starter
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What is this?

Here we are again with what is this question...ImageUploadedByTapatalk1338196621.203688.jpg
The car runs brilliantly but has overheated 3 times in 3 weeks. Each time, it cools back down as soon as I stop driving.
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The main thing in your pic (aside from various pipes and wires and whatnot) looks like the aircon compressor. Unlikely to have much to do with your overheating problem though.

Have you checked coolant level, and is rad ok?
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That's the air con pump ..

Sprint beat me to it ...

Last edited by Shadeyman; 28-05-12 at 09:41.
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(Post Link) post #4 of 9 Old 28-05-12 Thread Starter
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Yeah. I have flushed the coolant out and topped back up
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I'd suspect your thermostat or waterpump may be dead
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Sounds like an air blockage after the flush
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Simple question: is the cooling fan running when it gets to about 95C ?? It should kick in on slower speed there and not hit the higher until 100+.

If not, then start by checking the resistor on the back of the rad under the top hose. Connect the two wires that go to the resistor together (two male spade terminals and an inch or two of cable is a handy thing to keep in the glovebox). Then when it gets to 95 the fast speed fans should cut in everytime. If this is the case, then a new resistor unit should do the trick.

If the fans are running then it could be the rad is stuffed and not letting enough coolant through .. or you have more serious issues with waterpumps, etc.

I wouldn't let it overhead to often ... that's the quickest way to a warped cylinder head and blown head gasket, plus you could be risky damaging the soft white metal big-end shells.

cheers, Gary

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(Post Link) post #8 of 9 Old 28-05-12 Thread Starter
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It was overheating before the flush, so I don't think I made anything worse.
I'm gonna book it in for when I get back from holiday so it can be looked at... I was thinking of using the guy in Sale, Manchester as gets some good reviews on here.
I just hope there is no damage to the head, or anything else too costly.
Does anyone know approx coatings for either a water pump swap out, or a thermostat change?

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How badly did it overheat? In my experience modern cars with metal head gaskets are very intolerant to even slight overheating. You may very well get away with it for the moment but it'll come back and bite you in a few thousand miles time!
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