Land Rover Discovery 2.0 SD4 HSE auto 4WD Euro 6

SD4 is Land Rover’s badge for the higher-output version of its 2.0-litre four-cylinder Ingenium diesel. HSE is a trim level near the top of the range. Euro 6 is the standard a diesel needs for the London ULEZ.

What to check on this specification

The Ingenium four-cylinder diesel

Jaguar Land Rover’s own 2.0-litre diesel is the engine in this car, and it has a documented weakness. Used-car reviewers advise checking the service history carefully on four-cylinder JLR diesels because the timing chain is known to give trouble where servicing has been stretched, and they link the problem to oil condition: incomplete particulate-filter regenerations dilute the oil with fuel, long intervals leave it in place, and the chain and its guides wear early as a result.

That makes two checks non-negotiable. Start the engine from stone cold and listen for a rattle in the first seconds. Then read the service record for oil changes — frequency matters more here than the total mileage does.

The particulate filter

Every diesel of this era leaves the factory with a diesel particulate filter. Two things follow from that. First, a filter that was fitted when the vehicle was built and is missing at test time is an MOT failure, and removing one will normally put the vehicle outside the emissions standard it was type-approved to — which makes it unlawful to use on the road. Second, a filter only clears itself properly on a run long and hot enough to complete a regeneration; a car used for short cold journeys accumulates soot and, worse, fuel in the sump from interrupted regenerations.

On a viewing this shows up in the paperwork rather than the metal. Look for oil changes at or before the stated interval, and be wary of a car whose recorded mileage is made up of very short annual totals.

Air suspension

Where the vehicle has air suspension, it is a wear item rather than a fit-and-forget system. The common failure is a leak from an air spring, and a compressor that later fails is often doing so because it has been working against that leak for months. The practical test is simple: leave the vehicle parked and unattended for as long as the seller will allow, then come back and look at it from a distance. A corner that has settled, or a vehicle that is noticeably lower than it was, is telling you something. A suspension warning message on start-up is telling you the same thing more loudly.

Electrics

Owner surveys of Land Rover models from this period report electrical faults as the leading complaint — engine and emissions warning lights, infotainment, keyless entry, air conditioning. Work through every function on the viewing. Individually these are small; in combination they are the reason these vehicles have the reliability reputation they do.

Ownership notes

Reliability reporting on this generation of Discovery is below the class average, with warning lights related to the engine and emissions systems and infotainment faults the recurring themes. That is an argument for a full service record and a long test drive, not for avoiding the model outright.

Euro 6 means the vehicle meets the diesel standard for the London ULEZ and the charging clean air zones in England.

About this page

The address you are on was part of a used-car dealer site that no longer exists. The individual vehicle it once described was sold years ago; there is no stock here, nothing is for offer, and no enquiry goes anywhere. What has been kept is the specification the address itself encodes, written up as a reference for anyone looking at the same combination of model, engine, transmission and emissions standard on the used market today.

Nothing here is advice about a particular vehicle. Every point above is a thing to check on the car in front of you, and the official services linked below answer against a registration number rather than a model name.