The Land Rover Discovery IV (L319 facelift generation) is not an entirely new model, but a profound and highly successful evolution of the Discovery III. It retains the extremely heavy Integrated Body Frame chassis (over 2.5 tonnes), but significantly modernizes the cabin, electronics, and engines to elevate itself to the level of luxury SUVs. While it offers unparalleled off-road capabilities, regal comfort, and an ultra-practical cubic interior space (up to 7 real seats), its reliability record is historically disastrous. Maintenance and repair costs are prohibitive, weighed down by a capricious air suspension, fragile electronics, and engines (both petrol and diesel) prone to major failures. Overall reliability rating: Poor.
The Land Rover Discovery IV is a paradoxical vehicle: it is one of the most versatile, comfortable, and capable SUVs in the world, but it is also one of the least reliable of its generation. The data is damning: a TÜV Report 3-year defect rate of 25% and a What Car? score of 2/5 (38% annual breakdown rate). If you are targeting a petrol engine, the 5.0 V8 and the 3.0 V6 Supercharged offer exceptional drivability but demand absolute vigilance regarding the timing (chains) and cooling (plastic pipes on the V6 SC). Overheating on these aluminum blocks is fatal. Verdict: To be bought only with full knowledge of the facts, out of passion, with a meticulous maintenance history (frequent oil changes, suspension and control arm invoices), and keeping an annual repair budget of several thousand euros. For a rational purchase, turn to a Toyota Land Cruiser or a Lexus GX.