1994 Land Rover Discovery 2.5L Diesel · D115 COS

Chronic oil leaks across the engine and transmission define the mechanical profile of this vehicle, appearing as persistent advisories on every inspection since 2022. While the vehicle passed its most recent MOT on 19 September 2025, the recurring nature of these leaks, combined with a history of corrosion at the offside rear seat belt anchorage, indicates a trend of gradual degradation. A notable failure in September 2023 due to excessive exhaust emissions suggests a previous issue with combustion efficiency or turbocharger performance that required intervention to meet roadworthiness standards. With 258,589 miles recorded over 32 years, the vehicle has averaged approximately 8,081 miles per year, which is typical for a utility vehicle of this era. This high cumulative mileage means that wear is concentrated in the high-load drivetrain and chassis components. The recorded history of grease leaks from the offside front axle and the chronic seepage from the engine and transmission are direct consequences of this long-term usage, suggesting that seals and gaskets have reached the end of their effective service life. A physical inspection should prioritise the structural integrity of the rear chassis, specifically the offside rear seat belt anchorage where corrosion has been flagged since 2022. This area should be checked for significant scale or thinning of the metal. The engine bay and underside of the transmission should be examined for active oil drips to determine the current severity of the chronic leaks. Given the previous failure for excessive smoke, the exhaust output should be closely monitored during the test drive to ensure the engine is burning fuel cleanly under load. During the test drive, listen for any humming or droning from the rear, which would indicate a recurrence of the nearside rear wheel bearing play noted in 2022. Pay close attention to the front axle for any unusual knocks or vibrations, particularly during low-speed manoeuvres, to ensure the previously flagged axle grease leak has not progressed into a more serious component failure. The steering and suspension should be evaluated for stability, ensuring there is no excessive play in the linkages consistent with the vehicle's high mileage.