Land Rover SD4 (badge, not an engine)
inline-4 · turbocharged · diesel · 2011–present
Also known as: sd4, 2.2 sd4, td4 land rover, lr-sd4
Land Rover's badge for its transverse four-cylinder diesel — on the Freelander 2, the Evoque and the Discovery Sport.
It is a badge over two different engines. The 2.2 is a PSA DW12, which is the single most widely borrowed diesel in this catalogue and has a page here carrying twenty years of European fleet experience. The later 2.0 is a JLR Ingenium. Searching SD4 returns almost nothing; searching DW12 returns everything.
What the badge does tell you: diesel, four cylinders, turbocharged, transverse, and — on the higher outputs — sequentially turbocharged, which is where the SD differs from the single-turbo TD4. A boost-pressure complaint on a twin-turbo installation is a different diagnosis from one on a single, and the badge is what tells you which you are standing in front of.
On the 2.2, read the DW12 page. Its recurring items — the timing chain on the later engines, the fuel filter interval, the EGR cooler — are documented across five other marques.
Si4 is the petrol badge in the same position and has its own page.
Cars fitted with this engine
4 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
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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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