2005 Mitsubishi Shogun 3.2L Diesel · CA54 AUF

A developing pattern of underside corrosion defines the mechanical profile of this 2005 Mitsubishi Shogun, with surface corrosion advisories recorded at every test from 2021 through 2025, alongside a more specific advisory in the most recent pass on 2025-03-17 noting the underside as corroded. The latest test was otherwise clean, but the gradual progression of wording from "slight surface corrosion" in 2021-2022 to a less qualified "corroded" entry in 2025 suggests that the condition is advancing rather than static. Compounding this corrosion concern, the same 2025 test flagged brake discs worn, pitted or scored at both the front and rear, along with cracking and perishing on both rear tyres. The only outright failure in the recorded history occurred on 2022-01-31, when an offside front coil spring fractured, a defect repaired before the subsequent pass just four days later on 2022-02-04. Taken together, the record shows a vehicle that has remained legally roadworthy but carries a consistent and accumulating list of structural and consumable concerns typical of a Shogun approaching its third decade. The recorded mileage of 92,865 against an age of approximately 21 years equates to an annual accumulation of around 4,422 miles, which is low for the class and indicative of either limited regular use or extended periods of standing. There are no multi-year gaps in the MOT testing history, with annual tests recorded consistently from 2019 through 2025, so the low figure cannot be attributed to a long lay-up that would have removed the vehicle from testing. Mechanically, low annual mileage on a heavy off-road vehicle of this age tends to reduce wear on the drivetrain and engine internals but increases the likelihood of seized or corroded brake components, dried rubber seals, degraded tyre sidewalls from standing flexing, and accelerated oxidation of unprotected underside metal. The fractured front coil spring in 2022 is consistent with the latter pattern, as coil springs on lightly used vehicles are prone to corrosion-induced failure even at modest mileages. The brake disc pitting and tyre perishing flagged in 2025 further reinforce this low-use corrosion profile. For a prospective buyer, the underside corrosion warrants close physical inspection on a ramp or over a pit, with particular attention to the chassis rails, crossmembers, suspension mounting points, subframe, and brake and fuel pipe runs, as surface corrosion that progresses unchecked on these vehicles can ultimately compromise structural integrity and brake line integrity. The brake discs flagged as pitted and scored at both ends in 2025 will likely be approaching the minimum thickness and may exhibit judder under braking, a pulsing sensation through the pedal, or prolonged stopping distances, so a firm test-drive stop from around 40 mph on a smooth surface is essential to feel for any vibration or pull. The fractured coil spring repair from 2022 should be confirmed as a like-for-like replacement, and the opposite side front spring should be inspected for early corrosion cracking, as fracture on one side frequently foreshadows the other within a short period. On the test drive, listen for clonking or knocking noises from the front suspension over speed humps and uneven road surfaces, which would indicate worn bushes, top mounts, or anti-roll bar linkages, all common wear items on Shoguns of this age. Steering should feel precise without excessive play or wandering, and any clonking when turning at low speed may point to worn drop links or track rod ends. The tyres should be examined for age-related sidewall cracking even if tread depth appears adequate, as the 2025 advisory for perishing suggests the rubber compound is deteriorating. Finally, given the consistent underside corrosion pattern, a thorough check of brake pipe condition, exhaust mounting integrity, and any visible oil weeps from the engine and transfer box is strongly advised before purchase, as any of these items left unattended could quickly escalate from advisory to failure on the next MOT.