2011 Mercedes-Benz ML 3.5L Diesel · MX11 UXG

The most recent MOT test on 2024-11-27 at 93,166 miles shows a stable yet deteriorating maintenance trend, with the vehicle passing only after a failure on the same day for critical defects. The tester flagged an offside headlamp not working on dipped beam and rear tyres worn close to the legal limit, alongside worn and pitted front brake discs. While the headlamp and tyres were evidently rectified to secure the pass, the underlying mechanical concerns persist. The vehicle requires immediate attention to its braking components and ongoing fluid integrity. Covering roughly 6,211 miles per year, the 15-year-old ML exhibits typical light use for its age. The mileage progression remains steady, moving from 83,939 miles in October 2022 to 93,166 miles by late 2024, without any alarming gaps or sudden spikes in accumulation. This consistent accumulation suggests regular, albeit light, use rather than prolonged standing, which aligns with the gradual wear observed on consumables and braking components. A persistent pattern of corrosion and fluid seepage runs through the history, pointing to a previous owner who deferred routine maintenance. Since October 2022, testers have repeatedly flagged brake pipes corroded and covered in grease or other material front to rear, indicating a systemic issue with the braking system's hydraulic integrity rather than an isolated fault. The recurring oil leak advisory, present in both 2023 and 2024, compounds this concern. A physical inspection must thoroughly assess the structural integrity of the underbody, paying close attention to the condition of the brake lines, the extent of the oil leak source, and the state of the rear brake hardware given the corroded pipework. The repeated failure and advisory for rear tyre wear on the edges hints at potential suspension misalignment or worn suspension bushes, common on heavy SUVs of this age. The undertrays and sill covers noted in 2022 and 2023 obscure the view of the structure, so a buyer must request these be removed to inspect for corrosion or damage to the inner sills and chassis rails. The pitted front brake discs require measurement of their thickness and scoring depth to determine remaining service life. Replacing the corroded brake pipes and addressing the oil leak will demand significant expenditure, reflecting the neglected upkeep of this vehicle.