Any Known Coolant Problems with Ford 1.5 Ecoboost?

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Having decided to avoid the 1.0 Ecoboost due its various coolant loss issues we decided to hold out for a 1.5 Ecoboost and bought a Focus zetec s 2015. It was bought with a report stating coolant level correct but actually needed a 1.5 litre top up!

Took it to dealer who pressure tested and found no fault with the coolant system.

Logged level cold this morning, 4 mile drive, let it cool for 2 hours then checked and its dropped a bit already.

So are there any known faults with the 1.5 ecoboost losing coolant?

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Krikkit said:

Should've bought a 1.0 cos' it's fixed! Sorry, unhelpful.

I'm not convinced it is though because there are at least 3 variants of coolant problems on the 1.0 models the latter of which is an engine case machining issue where the seal behind the water pump leaks.

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IanCress said:

I've got a 1.5 Ecoboost and have no coolant issue. Never heard of any issues being reported either.

The only issue I have with it is the woeful off boost performance. I've driven plenty of modern turbo petrol cars and never found one as flat as the 1.5 ecoboost when off boost.

Dealer has told us to monitor the levels so I guess that's all we can do for now, when I first took the cap off the header tank it was extremely tight, took a lot force to get off, no evidence of it being cross threaded though, cap seals look good and if I take if off 10 mins after cool down can hear the pressure release so its holding pressure for a while.

When we put the bonnet up this morning (engine cold unstarted) to check the level, bubbles could be seen coming out from the main rubber pipe in the bottom of the header tank, seemed a bit odd, could there be air in the system?

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GroundEffect said:

That's not bad if there's bubbles coming back up to the degas bottle. That means the routing is working as expected.

The gaps do have high force to remove in general.

It sounds like it wasn't filled perfectly from the plant tbh...

But I would hope service 1 (a year ago) would have spotted if it hadn't been filled correctly from new and topped it up.

Assuming it was checked, 1 year and 11k miles after that service it needed 1.5 litres of coolant, what is an acceptable amount of coolant loss? I can't recall the last time I had to top up a vehicles coolant level.

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My sons car was evevtually fixed by ford, it was the intercooler buried in the manfold that was leaking, it took 2 different dealers weeks to find it, the first dealer dented a door just to really top things off.

My sister recently had a clutch fail at 9k miles on a less than 1 year old CMAX, after the usual Ford BS of "its caused by driving style" they partially backed down and funded the parts cost but refused to cover the labour.

I've been driving Mercs for quite a few years now, the engineering is so much better and when there is a problem they deal with it superbly, I had a crankshaft sensor go intermittent on a 6 month old GLE coupe, first they sent a Merc tech to my house with a van full of diagnostic kit, when he couldn't diagnose it they trailered it to the dealer, dropped me off a brand new GLE and sorted it all out with no nonsense.

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Toyoda said:

Did the 2.0 Ecoboost ever suffer from this?

There are bulletins for North America on the 2.0L maybe worldwide, I wouldn't touch a Ford car now and definitely not anything with one of their crappy Ecoboost turbo engines which is probably pretty much all petrol models including the RS range

The 2.0L bulletin reads:-

"3/30/2018 6275 - 2015-2018 Various Vehicles - 2.0L EcoBoost - Engine Runs Rough With Diagnostic Trouble Codes (DTCs) P0300, P0301, P0302, P0303, P0304 And/Or P0316
Some 2015-2018 Fusion/MKZ/MKC/Escape/Edge vehicles equipped with a 2.0L EcoBoost engine may exhibit a runs rough condition with DTCs P0300, P0301, P0302, P0303, P0304 and/or P0316. This may be due to coolant intrusion due to corrosion on the engine block."

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CrimeLord said:

Two weeks after a service, engine overheated in a matter of seconds. No coolant. Replenished coolant but 3 days later, overheated.
I shall NEVER by Ford, again.

Sounds a bit of a coincidence this happened shortly after a service, was it showing any signs of coolant leak before? If it lost all its coolant this sounds reminiscent of the 1.0 problem.

I would investigate how it lost the coolant and if the garage/Ford is at fault see them in court for the repair bill, these ecoboost engines all seem to have inherent cooling system issues.

My son still has his 1.5 Focus, I recently serviced it myself as I don't trust any Ford dealer to touch anything. I have NEVER come across an oil filter screwed on so tight, the idiots must have done it up with a tool! My usual chain type remover wouldn't budge it, last resort screwdriver through it wouldn't budge it, in the end I had to buy a 3 prong remover and use a breaker bar to get it off!