2004 Land Rover Discovery 2.7L Diesel · S9 BDK

The Discovery presents as a fundamentally sound vehicle that has consistently passed its MOT, yet the record reveals a slow, persistent battle with corrosion that a buyer must treat as the primary structural concern. The most recent test on 6 January 2026 at 157,318 miles passed, but the tester still flagged slight corrosion to the chassis and a crack in the screen. Comparing this to the January 2024 test at 157,141 miles, where corrosion to both the body and chassis was noted, the trend is one of stable but chronic surface degradation rather than a sudden structural failure. The maintenance pattern suggests a vehicle that has been kept running without major mechanical breakdowns, but without a rigorous rust-proofing regime. The mileage profile tells a story of near-total dormancy in recent years. Between the October 2020 test at 155,366 miles and the January 2026 test at 157,318 miles, the vehicle covered just 1,952 miles over five years and three months. That is an average of under 400 miles per year. Such low usage typically spares consumables like brake discs and tyres from heavy wear, but it is brutal on a chassis sitting in damp conditions, accelerating underbody corrosion. The earlier history shows more typical use, with 1,091 miles covered between October 2019 and October 2020, and a further 1,763 miles by March 2022. A prospective buyer must treat the chassis as the critical inspection point. The repeated advisory for chassis corrosion, present in 2022, 2024, and 2026, indicates an ongoing issue that has not been arrested. On a 20-year-old steel-framed Discovery, this demands a close inspection of the chassis rails, cross-members, and suspension mounting points for pitting or scaling that could compromise structural integrity. The body corrosion noted in 2024 further suggests the issue extends to bulkheads, door sills, and around the rear tub. A professional underbody inspection with a torch and probe is essential before purchase. Beyond the rust, the windscreen has been a recurring minor fault, with cracks noted in 2019 and again in 2026. While the 2026 tester judged the latest crack as not affecting the driver's view, a replacement will likely be required to satisfy future MOT standards. Mechanically, the low recent mileage means brake calipers, suspension bushes, and drivetrain components may be less worn than on a high-mileage example, but seized brakes or perished rubber joints from prolonged standing are a real possibility. The vehicle has no recorded emissions or suspension failures, which is a positive sign for the engine and basic chassis geometry.