2018 Mitsubishi Shogun 3.2L Diesel · WN18 KVT

The defining mechanical story of this Shogun is a front suspension and steering assembly that is steadily degrading under the demands of very high annual use, evidenced by the most recent test on 14 January 2026 which resulted in a failure due to an excessively worn offside front lower suspension arm ball joint, accompanied by advisories on the nearside equivalent showing slight play, play in the steering rack inner joints, and an offside rear tyre worn close to the legal limit on its edge. The progression from advisory to major on the front lower arms within a single test cycle is a clear indicator of accelerating wear at the front axle, and this is corroborated by the 2025 and 2024 tests which both flagged the offside front ball joint with slight play and steering rack inner joint play, demonstrating that the degradation has been ongoing for at least three consecutive test cycles. The fact that the vehicle was presented for retest on the same day as the failure and subsequently passed with the advisories still listed suggests the rectification was carried out on the opposite side only, leaving the nearside joint, the steering rack, and the rear tyre still requiring attention. With 199,455 miles recorded over an 8-year period, this Shogun is accumulating approximately 24,932 miles per year, which is considerably above average and places sustained mechanical load on every major consumable and drivetrain component. There are no notable gaps in the testing history to suggest extended periods off the road, meaning the vehicle has been in continuous service and the mileage shown is a true reflection of usage. Such a high annual accumulation typically accelerates wear on suspension bushes and joints, brake discs and pads, wheel bearings, and drivetrain mounts, and the front-end deterioration observed across the last three MOTs is fully consistent with this usage profile. The recurring oil leak advisory noted in 2023 and 2024 is also characteristic of an engine and gearbox at high mileage, where sealing components begin to weep. For a prospective buyer, the immediate priority is a thorough inspection of the front suspension and steering geometry, as the ball joints and steering rack inner joints have been flagged repeatedly and the nearside front ball joint will require replacement imminently if it has not already been addressed since the test. On a test drive, listen for clonking or knocking noises from the front suspension over speed bumps and uneven road surfaces, particularly during full lock manoeuvres where worn ball joints typically produce audible rattling. Check for uneven or feathered tyre wear across the front axle, which would indicate the worn joints are affecting wheel alignment, and pay particular attention to the offside rear tyre edge wear as this can point to broader tracking or suspension geometry issues. The steering rack play, noted on both nearside and offside inner joints, should be evaluated by rocking the steering wheel with the engine running and the vehicle stationary, feeling for any knocking or sloppiness transmitted through the rack. The braking system also warrants close scrutiny given the 2024 advisories for front brake disc wear and thinning offside front brake pads, particularly with this mileage accumulation where discs are likely nearing the end of their service life. On test, depress the brake pedal firmly at low speed and feel for any judder or vibration through the pedal, which would indicate warped or excessively worn front discs. The previously noted oil leak should be physically inspected underneath the vehicle for fresh residue on the engine block, sump, or power steering rack area, distinguishing it from a minor seep versus a more significant seal failure. Finally, given the continuous high-mileage operation and lack of testing gaps, a buyer should budget for the replacement of the nearside front suspension arm, both steering rack inner joints, and likely the front brake disc and pad set as imminent maintenance items, while also factoring in the longer-term probability of further suspension component wear given the sustained usage pattern this vehicle has clearly endured.