2017 Isuzu D-MAX 2.5L Diesel · SE66 WXP

The 2017 ISUZU D-MAX presents a pattern of recurring mechanical advisories spanning braking systems, suspension linkages, and subframe integrity, with the most recent MOT test on 2026-03-14 recording a PASS after a series of failures dating back to early 2022. While the vehicle achieved clean passes in 2023 and 2024, the intervening years were marked by critical issues including rear brake disc scoring, corroded rear leaf springs, leaking rear shock absorbers, and progressively deteriorating suspension bushings. The latest successful test does not erase this history but reflects a vehicle that has repeatedly failed to meet safety standards, requiring remediation before each subsequent MOT. At 57,052 recorded miles for a nine-year-old vehicle, the average annual accumulation of approximately 6,300 miles places the car within typical usage ranges for its age class, though the distribution of mileage gains reveals some irregularity. Between the 2024 and 2025 MOT cycles, the vehicle accumulated nearly 8,000 miles during a period when two separate failures occurred—one involving severe corrosion of rear front upper and lower suspension ball joints and another focused on near-side front track rod end play alongside a critically corroded front brake pipe. The 2026 pass appears to address these accumulated issues, yet the persistence of corrosion and fluid leaks indicates that underlying structural degradation continues to challenge the chassis. The rear leaf springs and their fittings show consistent corrosion across multiple test records, manifesting as visible rust and potential fatigue that could compromise ride quality and handling stability during cornering or hard acceleration. The rear shock absorbers present a dual concern: a serious fluid leak indicating internal seal degradation and a secondary external casing damage that may accelerate pump failure or cause pressure loss under load. Near-side front brake pipes have suffered progressive corrosion at the T-pieces and cylinder feeds, creating a high likelihood of fluid leakage onto the chassis or brake components if left unaddressed. Suspension ball joints on both front and rear sides exhibit gradual deterioration evidenced by play and dust cover deterioration, which can transmit road imperfections through the chassis and affect steering precision. For a prospective buyer, the priority inspection areas should centre on the rear leaf spring assembly and associated subframe connections, where corrosion may be progressing beneath protective coatings and could result in sudden suspension failure or alignment issues. The rear shock absorber system requires immediate professional bleeding and seal replacement due to documented fluid leakage, as continued operation risks complete hydraulic failure. Brake line integrity demands a thorough visual and tactile inspection of both front and near-side rear pipes for active seepage or rust flaking, particularly around the T-piece junctions noted in past failures. Finally, the heavily abused suspension components—ball joints and track rods—should undergo full functional testing including compression checks and play measurements to confirm whether the current rubber seals remain intact or require replacement before the vehicle hits the road.