Land Rover Si4 (badge, not an engine)
2.0 L · inline-4 · turbocharged · petrol · 2011–present
Also known as: si4, 2.0 si4
Land Rover's badge for its transverse 2.0 turbocharged petrol — on the Freelander 2, the Evoque and the Discovery Sport.
It is a badge and not an engine code, and the distinction matters because two entirely different engines have worn it: the earlier cars use a Ford EcoBoost-derived unit and the later ones a JLR Ingenium. Parts, service intervals and failure patterns differ between them, so the badge alone is not enough to order anything.
What it does tell you reliably is worth having, which is why this page exists rather than a refusal: petrol, two litres, four cylinders, turbocharged, mounted transversely, and roughly 240 to 290 horsepower. That rules out most of the range at a glance.
SD4 is the diesel badge in the same position and has its own page. Si4 and SD4 are the one Land Rover badge pair that reliably separates fuel — Ingenium does not, which is why it is refused as a designation here.
Find the engine code before diagnosing. It is on the block and in the VIN decode, and it is the difference between reading about a Ford engine and reading about a JLR one.
Cars fitted with this engine
3 generations, across 1 make. 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
Be the first to write this up
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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