Peugeot EC5
1.6 L · inline-4 · naturally aspirated · petrol · 2010–present
Also known as: ec5, ec5m, 1.6 vti psa, ec8
PSA's 1.6-litre naturally aspirated petrol four for markets outside Europe — in the Peugeot 208 and Partner and the Citroën Berlingo and C-Elysée.
It is the engine you meet when a European model was built somewhere else. The same car sold in France on a PureTech three-cylinder is sold in South America and China on this, and the two have nothing in common: a diagnosis written for one is wrong for the other, which is the whole reason to establish the code before anything else.
What that means in practice is good news. It is port-injected, belt-driven and naturally aspirated — so it has none of the PureTech's wet-belt failure, none of the intake carbon that direct injection brings, and no turbocharger. An engine with fewer ways to fail is genuinely simpler to diagnose, and its complaints are the old-fashioned set: vacuum leaks, a tired idle control, coil and plug wear, and a coolant temperature sensor that skews fuelling without setting a code anybody notices.
It shares its architecture with the long-running TU family, which is worth knowing when a search on the code returns nothing: TU5 results often apply. Where they do not is emissions equipment and engine management, which are specific to the market the car was built for.
English-language documentation is thin, and that is the practical constraint. Parts and procedures are easiest to find under the local market's own model name rather than the European one.
Cars fitted with this engine
4 generations, across 2 makes. From the authored catalogue — an absent car means the catalogue has not reached it, not that the engine was never fitted.
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Posted about this engine
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What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
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