2017 Mercedes-Benz E 1.9L Diesel · PO17 XWP

The most recent MOT on 24 August 2026 was passed with no recorded defects, but it followed a failure recorded four days earlier for a major fault – the engine malfunction‑indicator lamp being inoperative. The rapid re‑test and subsequent pass suggest that the fault was remedied promptly, yet the presence of a major electronic fault so close to the test date indicates that the vehicle’s engine management system may be marginal and warrants a thorough diagnostic check before purchase. Over the preceding seven years the MOT record has been clean aside from tyre‑wear advisories in 2024, pointing to an otherwise stable maintenance history but with a recent electronic issue that could be a precursor to further engine‑control problems if not fully resolved. At nine years old the car has accumulated 209 203 miles, averaging roughly 23 245 miles per annum, which is considerably above the typical UK usage of around 10‑12 000 miles per year. This high annual mileage implies accelerated wear on all consumable components – suspension bushings, ball joints, shock absorbers, brake pads and discs, and drivetrain bearings – and suggests that the vehicle has been subjected to sustained, possibly aggressive, driving conditions. There are no obvious gaps in the MOT chronology that would indicate prolonged periods of inactivity, so the wear is likely continuous rather than the result of long storage periods. Prospective buyers should have the engine management system scanned for fault codes and the MIL circuitry inspected to confirm that the original failure has been fully rectified and that no latent sensor or wiring issues remain. On a test drive listen for irregular idling, mis‑fires, loss of power under load, or any hesitation that could signal lingering ignition or fuel‑delivery problems. Given the 2024 advisories, both front and rear tyres should be examined for tread depth, sidewall integrity and uneven wear patterns that might reveal alignment or suspension deficiencies; any tyre approaching the legal minimum tread or showing edge wear should be replaced promptly. Additionally, verify that the brake discs and pads are within thickness tolerances and free from scoring, as high mileage often leads to disc corrosion and pad glazing, which can cause shudder or reduced stopping performance. Beyond the electronic and tyre concerns, a comprehensive pre‑purchase inspection should address age‑related items: check the condition of the 12‑volt battery, especially its cranking voltage and electrolyte level, as prolonged high‑mileage use can exacerbate charge‑cycle fatigue. Inspect the suspension components – coil springs, shock absorbers, and rubber bushings – for cracks, leaks or excessive play, which may manifest as clunking over bumps. Examine the exhaust system for rust or cracks, and confirm that the timing chain or belt (as applicable) has been serviced according to the manufacturer’s interval, since failure at this mileage can be catastrophic. Finally, ensure that all fluid levels – engine oil, coolant, brake fluid and gearbox oil – are topped up and that the fluids appear clean, indicating that regular calendar‑based servicing has been observed despite the vehicle’s high mileage.