2005 Isuzu TF 2.5L Diesel · DX55 AAE

The vehicle's most recent MOT test on 18 October 2023 resulted in a pass, though the record carries one minor defect for an inoperative offside rear registration plate lamp along with several advisories concerning general structural corrosion to both front and rear areas, power steering fluid being close to the minimum mark, and slightly rough steering. These advisories were not new in isolation; both the structural corrosion finding and the rough steering observation have appeared across multiple consecutive examinations dating back to the September 2022 test, suggesting these are recurring rather than transient issues. The 2022 test also included a failure event driven by a major defect on the nearside rear tyre with a deep cut exposing the ply or cords, a major defect for insufficient windscreen washer fluid, and an advisory for the offside front tyre being worn close to the legal limit and on its edge. While the subsequent pass is encouraging, the persistence of steering and corrosion advisories, combined with the tyre-related failure, indicates a maintenance pattern that is best characterised as stable but with progressive concerns rather than actively worsening, and these areas warrant close physical scrutiny before purchase. With a recorded mileage of 116,925 miles spread across approximately 21 years, the vehicle has covered an average of around 5,568 miles annually, which is notably low for a working vehicle of this age and type. Such low annual usage can imply one of two usage profiles: either consistent light running with shorter journeys, or extended periods of standing with intermittent use. Both scenarios carry distinct mechanical implications, particularly in terms of corrosion progression, fluid degradation, and the health of components that suffer more from inactivity than from wear. The fact that the MOT history only spans back to September 2021 with three recorded tests over a two-year window suggests limited annual mileage accumulation between examinations, which is consistent with either pattern and means the wear-related defects observed are likely age and environment driven rather than purely mileage driven. Given the recurring advisories for steering roughness, prospective buyers should pay particular attention to the condition of the steering system during a test drive. Listen for any knocking or clonking from the front axle when traversing uneven surfaces, which would indicate worn suspension bushes, drop links, or ball joints, and feel for any play or looseness in the steering wheel response. The power steering fluid advisory points to a need to verify the reservoir level and inspect for any signs of leakage from the rack, pump, or associated hoses, as a loss of fluid under load can lead to heavier steering, whining noises from the pump, or even component seizure. The persistent structural corrosion advisories, while not currently compromising rigidity, demonstrate that surface corrosion is active across the front and rear structures, and a thorough underside inspection should be carried out on a ramp to assess the extent of corrosion on load-bearing sections, subframe mounting points, and suspension pick-up areas. Any flaking or bubbling around structural seams, jacking points, or chassis rails should be treated as a serious concern, as corrosion tends to advance from the outside inward and can rapidly compromise integrity in older commercial-derived vehicles. Beyond the recorded advisories, the vehicle's age and low annual mileage make several time-based deterioration factors especially relevant. Brake discs and calipers on vehicles that stand for prolonged periods are prone to surface corrosion and seizing, so each corner should be inspected for pitted or heavily rusted discs, sticking caliper slides, and uneven pad wear; a firm brake pedal with no sponginess and straight-line stopping without pulling or vibration should be confirmed during the road test. The 21-year service life means tyre sidewalls should be closely examined for perishing and cracking even if tread depth appears adequate, as old rubber loses flexibility and can fail without warning. The 12-volt battery is very likely due for replacement on age alone if it has not been recently renewed, and ancillary electrical items including all exterior lamps, the horn, and the previously flagged windscreen washer system should be verified as fully functional. Finally, cooling system hoses, drive belts, and all fluid services including engine oil, brake fluid, coolant, and transmission fluid should be confirmed as within service intervals, as calendar-based degradation rather than mileage accumulation typically dictates replacement schedules on low-use vehicles of this age. A thorough pre-purchase inspection by a competent independent garage, ideally with the vehicle raised on a lift, is strongly recommended.