2012 Jeep Grand Cherokee Overland CRD A 3.0L Diesel · SL12 TYH

A pattern of emerging corrosion is the defining mechanical theme for this 2012 Grand Cherokee CRD Overland. Across eight recorded MOT tests, the vehicle has passed every time without a failure, with a clean run of no-advisory results from 2018 through 2020 and again through 2022, 2023 and 2024. The earliest flagged item appeared in 2021, when the offside front steering rack inner joint was noted with play and the rear exhaust back box mounting was recorded as corroded. By the 2025 test dated 28 October, the advisory landscape has narrowed in scope but broadened in implication, with the tester recording corroded suspension components. The shift from isolated mechanical wear to systemic surface corrosion is consistent with a vehicle now entering its mid-teens, and the trajectory from here will depend heavily on whether the corrosion is purely cosmetic or has begun to compromise load-bearing structure. The recorded mileage of 93,850 miles across approximately fourteen years equates to an annual accumulation rate of roughly 6,700 miles, which is broadly average for a large SUV of this age and does not suggest either sustained heavy use or long periods of standing idle. Testing frequency has been consistent, with annual MOT entries almost every year since 2018 and no multi-year gaps that would imply the vehicle was off the road. With mileage that moderate and usage that regular, the diesel engine, automatic transmission and four-wheel-drive system should have been worked enough to keep seals lubricated and components cycling, though consumables such as brake discs, pads, drive belts and the dual-mass flywheel will still have accumulated wear in line with the odometer reading rather than with calendar age. For a prospective buyer, the priority areas for physical inspection should mirror the advisory history directly. The 2025 advisory for corroded suspension components warrants a careful examination of the front and rear suspension arms, coil springs, anti-roll bar links and bushes, paying particular attention to surface rust versus flaking that has begun to eat into the metal itself. On a test drive, listen for clonks or knocks over uneven surfaces, particularly from the front end, and feel for any vagueness or shimmy through the steering wheel, which could indicate the steering rack inner joint flagged back in 2021 has progressed; a slow-speed lock-to-lock manoeuvre on full steering will usually reveal worsening wear in that joint. Also check for any uneven tyre wear, as worn inner or outer edges may indicate suspension geometry has shifted. The rear exhaust mounting advisory from 2021 should prompt a check underneath the tail end for any looseness, rattling at idle or signs of exhaust hangdown, and the rubber mounting bracket itself should be inspected for integrity. Given the recent suspension corrosion finding, it is also worth having the vehicle raised on a ramp to inspect the subframe, brake pipes and fuel lines for any advanced surface rust, as these are common corrosion hotspots on Grand Cherokees of this generation and have not yet appeared in the MOT record but could be the next items to fail. Finally, request that the tester demonstrates operation of the diesel particulate filter regeneration cycle if possible, and confirm any warning lights on the dashboard are addressed separately, as MOT testing does not cover electronic diagnostic systems on vehicles of this age.