Mk8 Fiesta ST reliability
Discussion
I intend to buy some sort of hot hatch next year. I was very interested in a mk8 fiesta st (the 3 cylinder one) but a mechanic who I've been using for many years and trust told me I'd be better off getting something else because the cambelt in oil design can cause big problems and he says he's seen many ecoboost engines in garages for big overhaul repairs. Should I take his advice or in fact are they actually pretty reliable if looked after, serviced accordingly etc. Tia
https://www.pistonheads.com/news/ph-buying-guides/...
Not heard if the 1.5l ST having major problems. The 1l Ecoboost had some recall issues which were (imo) exaggerated by the “eco boom” phrase going around. 1.5l in the ST seems fairly good. If you want a bomb proof fiesta engine get the mk7 st.
Not heard if the 1.5l ST having major problems. The 1l Ecoboost had some recall issues which were (imo) exaggerated by the “eco boom” phrase going around. 1.5l in the ST seems fairly good. If you want a bomb proof fiesta engine get the mk7 st.
I'm sure the i20N is an awesome car but it just doesn't appeal to me pretty much because I don't like the way it looks....I do however quite like the Abarth 595 competizione...
Oh that's interesting I'd tried finding the differences in design between the 1.0 and 1.5 but struggled. This can only be a good thing. I don't know how accurate this is but I'm sure I heard that they (must just be the 1.0) require a special kind of oil to stop the belt rotting and failing prematurely.
Oh that's interesting I'd tried finding the differences in design between the 1.0 and 1.5 but struggled. This can only be a good thing. I don't know how accurate this is but I'm sure I heard that they (must just be the 1.0) require a special kind of oil to stop the belt rotting and failing prematurely.
The 3 cyl 1.5 Ecoboost has a Cam chain and so doesn't suffer from issues related to a wet cam belt. So no need to worry about that on the Mk8 ST
By all accounts the 1.5 Ecoboost is a good engine. Offering performance and economy, which would have been unbelievable not that long ago.
Later 1.0T Ecoboost engines now use a Cam chain too (when mHEV were introduced approx 2020)
Issue with original 1.0T Ecoboost, is if the wrong oil is used or isn't changed frequently, material from the belt can block the oil feed. If the right oil is used and changed regularly, shouldn't be an issue. Problem is, this engine first appeared
In Focus in 2012 and Fiesta in 2014. So the early cars are getting on and its not always possible to find out if the cars had the right oil or if it's been changed regularly. So buying a old one is a bit of a gamble unless your willing to take the sump off to take a look! Plus Cambelt change at 10 years is a bigger job than a dry belt would be.
Early 2012 Focus suffered from coolant pipe failure. But this was covered by a recall and so shouldn't be an issue now..
By all accounts the 1.5 Ecoboost is a good engine. Offering performance and economy, which would have been unbelievable not that long ago.
Later 1.0T Ecoboost engines now use a Cam chain too (when mHEV were introduced approx 2020)
Issue with original 1.0T Ecoboost, is if the wrong oil is used or isn't changed frequently, material from the belt can block the oil feed. If the right oil is used and changed regularly, shouldn't be an issue. Problem is, this engine first appeared
In Focus in 2012 and Fiesta in 2014. So the early cars are getting on and its not always possible to find out if the cars had the right oil or if it's been changed regularly. So buying a old one is a bit of a gamble unless your willing to take the sump off to take a look! Plus Cambelt change at 10 years is a bigger job than a dry belt would be.
Early 2012 Focus suffered from coolant pipe failure. But this was covered by a recall and so shouldn't be an issue now..
GhiaInjection said:
The 3 cyl 1.5 Ecoboost has a Cam chain and so doesn't suffer from issues related to a wet cam belt. So no need to worry about that on the Mk8 ST
By all accounts the 1.5 Ecoboost is a good engine. Offering performance and economy, which would have been unbelievable not that long ago.
Later 1.0T Ecoboost engines now use a Cam chain too (when mHEV were introduced approx 2020)
Issue with original 1.0T Ecoboost, is if the wrong oil is used or isn't changed frequently, material from the belt can block the oil feed. If the right oil is used and changed regularly, shouldn't be an issue. Problem is, this engine first appeared
In Focus in 2012 and Fiesta in 2014. So the early cars are getting on and its not always possible to find out if the cars had the right oil or if it's been changed regularly. So buying a old one is a bit of a gamble unless your willing to take the sump off to take a look! Plus Cambelt change at 10 years is a bigger job than a dry belt would be.
Early 2012 Focus suffered from coolant pipe failure. But this was covered by a recall and so shouldn't be an issue now..
This is correct.By all accounts the 1.5 Ecoboost is a good engine. Offering performance and economy, which would have been unbelievable not that long ago.
Later 1.0T Ecoboost engines now use a Cam chain too (when mHEV were introduced approx 2020)
Issue with original 1.0T Ecoboost, is if the wrong oil is used or isn't changed frequently, material from the belt can block the oil feed. If the right oil is used and changed regularly, shouldn't be an issue. Problem is, this engine first appeared
In Focus in 2012 and Fiesta in 2014. So the early cars are getting on and its not always possible to find out if the cars had the right oil or if it's been changed regularly. So buying a old one is a bit of a gamble unless your willing to take the sump off to take a look! Plus Cambelt change at 10 years is a bigger job than a dry belt would be.
Early 2012 Focus suffered from coolant pipe failure. But this was covered by a recall and so shouldn't be an issue now..
The mk8 ST 1.5 is chain driven so no real issue.
I have a mk7 1.6 which does have a wet cam belt. But it doesn't seem to be a problem in the 1.6 as long as its kept standard and maintained properly. I'm sure replacing the belt is expensive but it's only once in every 10 years.
The 1.6 Ecoboost in the mk7 ST has a traditional dry belt.
(The 1.6 Ecoboost is the Ti-VCT version of the 1.6 Sigma engine with Direct Injection and Turbo. So the Cambelt is a before and maintenance similar.
There is 4 Cylinder 1.5 Ecoboost, which is just the 1.6 with capacity reduced and intercooler improved to maintain the 1.6 performance. This never appeared in the Fiesta, but in late MK3 Focus, Mk5/Gen 4 Mondeo and related)
(The 1.6 Ecoboost is the Ti-VCT version of the 1.6 Sigma engine with Direct Injection and Turbo. So the Cambelt is a before and maintenance similar.
There is 4 Cylinder 1.5 Ecoboost, which is just the 1.6 with capacity reduced and intercooler improved to maintain the 1.6 performance. This never appeared in the Fiesta, but in late MK3 Focus, Mk5/Gen 4 Mondeo and related)
Thanks for all the feedback folks. Yeah like the Hyundai, I just can't see myself owning a Mini even if they're brilliant. Just not my style. I guess my opinion might change if I test drove them. I had a go in my brother's 208 GTi bps and loved it but heard so many horror stories regarding those engines. I was even looking at Golf R's and gti's but I think I prefer the smaller cars.
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