Air in the system.
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1.1 is really notorious for changing coolant.If it's the air how come it's so hard to kick it out?
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The coolant usually comes out of that bleed nipple last,you'll hear a hiss then bubbles followed by coolant.
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It’s not hard you’re probs just doing it wrong. Loads of guides on how to do it on here, have a search.
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You must bleed these engines cold with the engine off!
You need to create a header of water, I use a 2 litre bottle with the bottom cut off. Put the bottle in the radiator cap and fill it - you can get special funnels but I can't remember what they're called. You must keep this bottle nearly full at all times. 1.) You need to bleed the radiator first, then close it when there's no bubbles. 2.) then the coolant housing (5mm hex/allen key?) then close it when it flows smoothly. 3.) then the bleed cap at the back, then close it when the coolant flows smoothly. If you don't do it in this order, it will overheat. Anyone who tells you another method is wrong and just got lucky that they got the air out. Over time, the excess coolant will spill out, the "full" level is quite far down the radiator tank. p.s having the heater on the car makes no difference, these cars don't have heater valves. the core is always open. |
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@Martin
Where do you use 5mm key??? |
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Underneath the blue connector, in that general area. The hose on that side of the engine returns to the radiator. In that housing there is an Allen headed bleed screw.
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You mean plug screw on housing for temperature sensor?
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Sorry I never saw the tag,
Yes it's a small brass screw on that housing. |
Since I was running out of patient,I went to my buddy and used this
https://www.aliexpress.com/i/32990020881.html to pump out the remaining air. Very useful staf, so I recommend it. |
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You won't know either, because the temp sensor won't tell you. If you're happy with it, then okay. |
When I replaced my radiator, I bled all 3 of the correct spots, I squeezed the coolant pipes too to move the coolant around. If you have air pockets at the bleed points, the system won't work properly.
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