2014 Mercedes-Benz E 2.1L Diesel · ST63 TYS

The most recent MOT, carried out on 2 December 2025, was passed with no recorded defects, indicating that the vehicle met the statutory safety and emissions standards at that time. Over the past five years the record shows a clear shift from outright failures in 2021 and 2023, largely driven by tyre tread depth and brake‑pipe corrosion, to a series of passes accompanied only by advisories. While the frequency of advisories has reduced and the severity of the issues noted has lessened, recurring themes such as rear tyre wear, brake‑pipe corrosion and rear trailing‑arm bush deterioration remain, suggesting a maintenance trend that is stabilising but still requires attention to prevent a relapse into failure. At 83 658 miles the car has covered roughly 6 970 miles per annum over its twelve‑year life, a usage rate that is modest for a Mercedes‑Benz executive saloon. The relatively low annual mileage points to periods of light use or extended storage, which can be as consequential as high mileage because age‑related degradation of rubber, seals and electronic components proceeds regardless of distance travelled. Consequently, while the mileage itself does not imply excessive wear on major power‑train components, the vehicle’s age means that consumables and corrosion‑prone parts must be inspected with a calendar‑based mindset rather than a purely mileage‑based one. A prospective buyer should give particular scrutiny to the rear tyres, which have repeatedly been flagged for tread close to the legal limit and, in 2023, for a tread depth below 1.6 mm on the nearside. Examine both sidewalls for cracking, ageing or perishing, and feel for any bulges or hard spots that could indicate internal damage. During a test drive listen for any thumping or vibration that may arise from uneven wear or a developing separation of the tyre carcass. The brake‑pipe corrosion noted on every MOT since 2021, despite being covered with grease, is a potential source of fluid leakage and reduced brake efficiency; check for any dampness around the front pipe fittings, test the pedal for a firm, consistent feel and, if possible, have a qualified mechanic confirm the integrity of the pipe and replace it if corrosion has progressed. The rear trailing‑arm bushes have been described as deteriorating; a simple push‑down test of the rear rear corners should reveal any excessive play, and a clunk or knock on uneven road surfaces would confirm bush wear that warrants replacement. Given the vehicle’s age, also verify the condition of the 12‑volt battery, ensuring it holds charge and shows no signs of terminal corrosion, and inspect the coolant, brake fluid and engine oil for signs of moisture or discoloration that would indicate overdue service intervals. The service book should be checked for regular oil changes and any recorded replacement of brake pads, discs or suspension components, as the 2022 MOT highlighted thin front and rear pads and a front disc that is pitted but not yet structurally compromised. Finally, look for any signs of rust on the wheel arches, under‑carriage and suspension mounting points, as prolonged periods of standing can accelerate corrosion even on a low‑mileage vehicle. Addressing these items before purchase will give a clearer picture of the car’s true roadworthiness and the likely cost of bringing it to a fully reliable condition.