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20th December 2022, 14:27 | #1 |
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Overheated - panic stations?
My 1.8t ZT got a little warm on Sunday afternoon during a drive back from a hospital appointment. The temp gauge blipped into the red, the warning flashed up for a second and then immediately went back to normal.
I’ve not been well so only had the chance to check on things properly this afternoon. Oil levels seem fine, but coolant levels were way down. I’ve filled that up and will see if it goes down again. There’s no sign of the dreaded mayonnaise, but I know that’s not the be all and end all of HGF diagnosis. Is it likely the cold snap and fast thaw we experienced this last week could have caused a leak somewhere? Or is this just wishful thinking? The only other symptoms I’ve had are the heating taking a while to kick in, but I put that down to the weather. What other checks and precautions should I take? I’m just looking for advice and reassurance really. |
20th December 2022, 14:33 | #2 |
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My 1.8 n/a overheated once due to low coolant but after a quick garage stop & top-up there were no further issues.
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20th December 2022, 18:29 | #3 | |
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Simon
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21st December 2022, 15:21 | #4 | |
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It’s lost all the coolant I stuck in it yesterday though, so there’s an issue somewhere within the coolant system I’m guessing? Any suggestions on what to look at next? |
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21st December 2022, 15:49 | #5 |
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It sounds like a coolant loss issue to me - when the level is low, the heaters will feel 'lukewarm' as they're quite high up in the coolant circuit.
A good place to start with a 1.8 (assuming you have the plastic inlet manifold) is the inlet manifold gasket - these go hard with age and start to leak. Sometimes they leak into cylinder 1, so there's no external indication you're losing coolant! We have the revised Viton gasket designed to last a lot longer here: https://www.dmgrs.co.uk/products/k-s...sket-lkj101110 Another source of coolant loss is the O Rings in the coolant cap; they flatten with age, allowing steam to escape at higher pressures when on the move. Again, hard to spot as the loss is often gradual. You can get replacements here: https://www.dmgrs.co.uk/products/rov...to-fix-esr1480 These issues probably account for a good 50% of K Series coolant loss episodes we're asked to help diagnose these days - very common, but thankfully both relatively simple repairs.
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22nd December 2022, 06:54 | #6 | |
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I need to ask whether anyone's been working on the cooling system recently or whether K-Seal has been put in to the cooling system. Simon
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22nd December 2022, 10:40 | #7 | |
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How do I activate the instrument pack diagnosis? |
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22nd December 2022, 11:33 | #8 |
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22nd December 2022, 14:27 | #9 |
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Thanks will top it off and take it for a spin tomorrow and see how it gets on.
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22nd December 2022, 14:29 | #10 | |
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