2020 Mercedes-Benz E 1.9L Diesel · J4 CSN

The most recent DVSA examination on 9 March 2026 resulted in an initial fail, with a Dangerous defect recorded for a nearside front tyre having ply or cords exposed, alongside advisory notices for both rear tyres being worn close to the legal limit and worn on their edges. A subsequent test on the same day was passed with no defects recorded, indicating that the dangerous tyre and the advisory items were addressed immediately. Prior to this, the vehicle passed its MOT examinations in March 2025, March 2024, and July 2023 without any recorded defects or advisories, which suggests that the standard of maintenance has been broadly consistent over recent years. The sudden appearance of a dangerous tyre failure and rear edge wear on an otherwise clean record points to a deterioration in tyre condition rather than any underlying mechanical neglect, though it does warrant close scrutiny of wheel alignment geometry and tyre replacement practices going forward. With a recorded mileage of 40,682 miles over approximately six years, this Mercedes-Benz E-Class is running at an average of around 6,780 miles per year, which sits comfortably within the expected range for a vehicle of its type and age. This annual usage suggests a mix of urban and longer-distance driving rather than extended periods of standing, meaning that the major mechanical components should have been exercised regularly. There are no anomalous gaps in the recorded mileage between tests, indicating steady and consistent use. For a 2020 vehicle at this mileage, the engine, transmission, and major drivetrain components should be well within their expected service life, though consumable items such as brake discs, pads, tyres, and ancillary drive belts will naturally require attention as the vehicle accumulates further mileage. Given the recent tyre-related issues, a prospective buyer should begin with a thorough physical inspection of all four tyres, confirming that replacements are of matching specification, correctly sized, and fitted with adequate tread depth across the full width of the contact patch rather than just the central ribs. Inner and outer edge wear, as noted on the rear tyres at the last test, is often symptomatic of incorrect wheel alignment, worn suspension bushes, or distorted trailing arms, and any irregular or feathering wear pattern should prompt a geometry check and a closer examination of the rear suspension components. On a test drive, listen for any suspension clonks or knocking over uneven surfaces, particularly at low speed, which would indicate worn anti-roll bar links, drop links, or bottom arm bushes common to this model. Also pay attention to any pulling to one side under braking or cruising, as this can confirm alignment issues stemming from the recent tyre wear pattern. Beyond the immediate tyre and alignment concerns, the relatively modest annual mileage and the vehicle's age mean that attention should also be given to time-served rather than mileage-served deterioration. Brake discs may exhibit light surface corrosion or lipping from standing periods and general use, so verify that the car rolls freely when released on a level surface, indicating no binding calipers. Check the condition of the 12V battery, which on a six-year-old vehicle is likely approaching the end of its reliable service life, and confirm recent replacement if possible. Tyre sidewalls and the spare or spacesaver should be inspected for age-related perishing or cracking, as rubber degrades regardless of tread depth. Finally, verify that the service book is fully stamped and that critical time-based items such as brake fluid, coolant, and automatic transmission fluid have been renewed in line with manufacturer schedules, as these degrade with calendar age even on low-mileage examples and are essential to the long-term mechanical health of the vehicle.