The Ford Fiesta was Ireland's best-selling small car for years. The Hyundai i20 is the reliable, well-equipped alternative. One has a serious engine fault to avoid. Here is the full picture for Irish used car buyers.
The most fun-to-drive small car in its class — sharp steering, involving handling, great on Irish back roads. The 1.0 EcoBoost 3-cylinder is the dominant engine on the Irish used market and has a known head gasket fault on pre-2018 examples.
No equivalent engine fault. 5-year manufacturer warranty means most examples were properly maintained. More modern interior than older Fiesta, better equipped from standard, and a more straightforward ownership experience.
| Category | Ford Fiesta | Hyundai i20 |
|---|---|---|
| Driving enjoyment | Best in class ✓ | Competent |
| Reliability (overall) | Good — with checks | More consistent ✓ |
| Engine fault risk | 1.0 EB pre-2018 — check | None significant ✓ |
| Warranty history | Standard | 5-year ✓ |
| Standard equipment | Basic lower trims | Better equipped ✓ |
| Interior modernity | Dated on Mk7 | More modern ✓ |
| Irish availability | Abundant ✓ | Good |
| Parts & servicing | Cheapest in class ✓ | Reasonable |
| Irish price range | From €7,000 ✓ | From €8,000 |
The 1.0 EcoBoost 3-cylinder in the Fiesta Mk7 and early Mk8 (pre-2018 build date) has a known head gasket failure issue — coolant loss, overheating, and in worst cases terminal engine damage. Ford revised the engine from 2018 onwards. Always check the coolant level and colour before buying any pre-2018 1.0 EcoBoost Fiesta. White smoke from the exhaust or sweet smell from the engine bay — walk away immediately. The 1.5 TDCi diesel manual avoids this fault entirely.
The Fiesta is not a car to avoid — it is a car to buy carefully. A post-2018 1.0 EcoBoost Mk8 with full Ford service history is a genuinely excellent small car. The 1.5 TDCi diesel manual on the Mk7 or Mk8 is the safest choice of all — no EcoBoost fault, strong economy, and widely serviced across every town in Ireland.
For a first-time buyer or anyone who wants to minimise risk the i20 is the cleaner choice. No headline engine fault, 5-year warranty service history on most examples, and better equipped from standard. It is not as fun to drive as the Fiesta but for daily commuting and town use that rarely matters.
If you love the Fiesta but are nervous about the EcoBoost fault — search specifically for post-2018 Mk8 1.0 EcoBoost or the 1.5 TDCi diesel. Both are safe choices. Pre-2018 1.0 EcoBoost Fiestas should be priced to reflect the risk — factor in a potential head gasket job before making any offer.
Fiesta Mk7 1.5 TDCi manual — €7,000–€10,000. Fiesta Mk8 1.0 EcoBoost post-2018 — €10,000–€16,000. Hyundai i20 2015–2020 — €8,000–€12,000. Hyundai i20 2020+ — €12,000–€16,000.
The i20 is the lower-risk, lower-stress used car purchase. No known engine fault, strong warranty service history, better equipped. It is the correct recommendation for first-time buyers and anyone who simply wants reliable daily transport. The Fiesta post-2018 1.0 EcoBoost is an excellent car with the fault resolved — and the best driver's car in this class. Avoid pre-2018 1.0 EcoBoost Fiestas unless the price reflects the risk and you have had a compression test done. The 1.5 TDCi diesel Fiesta is the sleeper pick — underpriced, fault-free, and excellent economy.
A Cartell or Motorcheck report costs €10–€15 and takes two minutes. These are the flags to watch for on a used Fiesta or i20:
Tell us your budget and we will find the right car and spec — and flag anything to check before you commit.
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