1994 Isuzu Bighorn LWB Diesel Auto 3.0L Diesel · L529 ASU

The Isuzu Big Horn presents as a fundamentally sound vehicle with a stable and improving maintenance trend. The most recent test on 17 June 2023 at 140,848 miles passed cleanly with zero defects, a significant turnaround from the failed test just days earlier on 25 June 2021 at the same mileage. That 2021 failure flagged a missing offside rear fog lamp and a misaligned nearside headlamp aim, both rectified before the immediate retest passed on the same day. The 2016 test at 140,846 miles recorded minor advisories for a permanent handbrake warning lamp and a nearside front tyre worn close to the legal limit, suggesting basic consumable wear rather than systemic neglect. The progression from minor defects in 2016 to a fully clean bill of health in 2023 indicates attentive ownership in recent years. The mileage pattern raises questions that a buyer should probe carefully. The vehicle has covered just two miles between December 2016 and June 2023, a span of roughly six and a half years. This near-static odometer reading is consistent with either long-term storage or a recent engine or dashboard replacement, though the latter would not appear on the MOT record. Annual use of approximately 4,402 miles over the vehicle's 32-year life is low for a diesel automatic, which typically thrives on regular sustained running. Prolonged standing is a known risk for diesel engines, potentially leading to injector clogging, DPF blockage, and fuel system condensation. The lack of MOT records between 2016 and 2020 further obscures whether the vehicle was actively used or simply stored without testing. A prospective buyer should prioritise a thorough underbody inspection focused on structural corrosion, particularly around chassis rails, outriggers, and suspension mounting points, as 32-year-old steel-framed 4x4s are highly susceptible to hidden rot regardless of mileage. The handbrake warning lamp flagged in 2016 warrants checking, as a persistent fault could indicate a failing brake switch, low fluid, or worn rear brake components. The diesel automatic drivetrain should be assessed for cold-start rough running, excessive smoke under load, and smooth transmission shifts, all of which can signal neglect from extended standing. Suspension bushes, coil springs, and shock absorbers should be examined for perishing and sag, given the vehicle's age. Tyre age matters as much as tread depth here; even with low mileage, rubber older than six years can present a genuine safety risk.