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Discussion Starter · #1 ·
Our 2015 Kuga (2.0 180 4x4) is losing coolant, but very very slowly. About a pint a month i'd say. There are no obvious leaks anywhere but you can smell it when the weather warms up. I initially thought it may be the seal on the expansion tank cap, but that wouldn't give that familiar 'curry' smell of hot coolant would it? Whatever it is seems to be on that side of the engine. Any ideas?
 

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Super Moderator and Mr Uses Lots of Words
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Hi @Astroboy - I know you are not a new member but can you update you signature with your car's details. It will save you having to tell us what you have each time you want to post. Details below.

Welcome to the Forum, Please Read | Ford Kuga Owners Club Forums

I only know of one other member reporting a coolant leak on his diesel Kuga and that was balders who replaced the radiator.

@balders - would you like to say where yours was leaking from.
 
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Discussion Starter · #3 ·
All updated. Apologies, I should have done that ages ago :)
 

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Premium White 2018 Kuga ST 183BHP Auto 4x4
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I had the same on my car but went back under warranty. They replaced the ERG stating that is was leaking internally.
 

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2013 Titanium X with 2017 Powershift Conversion.
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Seems to be a fairly common fault EGR coolant leak, I wonder how they diagnose it?.

I suppose if engine is bone dry externally then it's either that, headgasket or crack in cylinder head?.
 

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Discussion Starter · #7 ·
I've been watching a few videos on EGR and cooler replacement and its well within my capabilities. I've got a fibre optic camera I can stick in there to see if I can spot anything. If it was an internal leak i'm going to assume i'd not be able to smell is as the coolant would be leaking into the EGR being cycled through the engine. It's probably something annoying like a gasket, pin hole in a hose or a clamp not seated correctly. We've had the car three years now and it's always done it, but now we are coming to the end of our lease we've decided to keep it, so I suppose I'd better fix it.
 

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Discussion Starter · #10 ·
Just had a quick read through. Advanced Radiators are only a mile and a half and I have an account with them, which may prove handy lol
 

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Premium White 2018 Kuga ST 183BHP Auto 4x4
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I do not no what type of EGR you have but the one on my engine was big and looked expensive compared to the one I had on my MK1.
 

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Discussion Starter · #12 ·
I do not no what type of EGR you have but the one on my engine was big and looked expensive compared to the one I had on my MK1.
Doubtless whichever one it is, it'll likely be the biggest most expensive one lol. That said unless there is a crack in the body the cooler has no moving parts so my guess would be the gasket between the cooler and EGR is weeping. We'll see though...
 

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Discussion Starter · #13 ·
I have an update to share... I stuck my fibre optic camera in through the bumper slats and fed it up to the top right hand corner. The quality of the pics isn't brilliant but I think you'll draw the same conclusions as me. I think it's new rad time
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20210610_155906.jpg
 

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Mr. Happy
Kuga 2ltr AWD Titanium X, Midnight Sky.
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Good to see you eventually got an answer to the leak.
 
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