Also known as: 4g13, 4g15, 4g18, 4g1, orion engine, mitsubishi 1.5, 4g1 mivec, 4g18tdb, 4g15t, 4g15m
Mitsubishi's small four — the Orion family, 1.3, 1.5, 1.6 and 1.8 litres, in the Lancer, Mirage and Colt.
Its reach is far wider than the Mitsubishi badge suggests, and that is the reason to have this page. Licensed and copied, it became the volume engine of a generation of Chinese cars: the Geely Emgrand, the Great Wall Haval H6 and the Changan CS35 all run a version of it. A fault documented on a Lancer describes them, and parts and procedures cross over far more than the badges imply — which is exactly what an owner searching a code on one of those cars will not be told anywhere else.
It is a belt-driven SOHC design of unremarkable specification and considerable durability, which changes what a fault means: an engine of this family running badly is usually its ignition, its fuel supply or its idle control rather than anything internal.
Check whether the variant is MIVEC before applying anything about variable valve timing, because most of the family has none. And treat the belt interval as a date rather than a suggestion on the variants that are interference designs — which one a given engine is depends on the market it was built for, not on its displacement.
Cars fitted with this engine
9 generations, across 5 makes. From the authored catalogue — an absent car means the catalogue has not reached it, not that the engine was never fitted.
Changan
Great Wall Motors
Suzuki
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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Nothing posted about this yet. Whatever you found is worth writing down — even a dead end saves someone the same afternoon.
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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