1999 Land Rover Discovery 2.5L Diesel · T804 BDY

A consistent pattern of corrosion-related advisories spanning several MOT tests forms the central mechanical narrative for this 1999 Land Rover Discovery. From the earliest recorded test in 2018, the vehicle has accumulated repeated advisories relating to corroded rear body panels, chassis repairs concealed beneath underseal, and a corroded rear towbar. A minor defect was also recorded in 2020 for an oil leak at the steering box, alongside windscreen damage. While the four most recent tests in 2022, 2023, 2024, and 2025 returned clean passes with no advisories or defects, the cumulative structural corrosion flagged between 2018 and 2021 warrants careful scrutiny, as Land Rover chassis and rear body sections are known to deteriorate further once underseal is disturbed or repairs age. The recorded mileage of 185,586 miles across approximately 27 years equates to around 6,800 miles annually, which is broadly typical for a vehicle of this age. However, the mileage gap between the 2019 test and the 2020 test suggests an interval of around nineteen months, and from 2020 onwards tests have occurred annually with steady mileage progression. For a four-wheel-drive vehicle with live axles and traditional recirculating-ball steering, this mileage level places substantial wear on suspension bushes, swivel pins, shock absorbers, brake discs, and the power steering box that has already shown a recorded leak. The earlier steering box defect, although categorised as minor at the time, is symptomatic of the internal seal degradation common to high-mileage Discovery steering gear, and the unit may have deteriorated further since. A prospective buyer should treat the rear body and chassis corrosion advisories as the primary inspection priority. On examination, the rear chassis rails, outriggers, cross-members, and around the spring seats should be probed with a screwdriver or tapped firmly to check for any progression beyond the slight corrosion previously recorded, paying particular attention to the nearside and offside rear inner arches and the load floor. Any rattling, knocking, or creaking from the rear suspension over uneven surfaces could indicate seized or worn bushes, failed shock absorbers, or loose components exacerbated by chassis flex. The repaired rear chassis area should also be visually inspected for cracking, fresh underseal application, or evidence of further welding, as the 2018 advisory noted an inability to verify the complete weld due to underseal coverage. The recorded steering box oil leak warrants a thorough functional check before purchase. With the engine idling and the steering turned lock-to-lock several times, observe the steering box and its hydraulic pipes for any fresh seepage, and listen for a whining or groaning noise from the pump, as the 2018 test noted a noisy fuel pump which could indicate related driveline wear. During a test drive, pay close attention to any knocking through the steering wheel, wandering at speed, or uneven self-centring, all of which could suggest worn steering linkage joints, a failing steering damper, or further deterioration of the steering box itself. Given the towing-related towbar corrosion advisories from 2019, any towbar fitted should be inspected for continued degradation, and the vehicle's underbody should be examined on a ramp for brake pipe corrosion, exhaust integrity, and the condition of the fuel lines, which are common failure points on Discovery models of this era.