2016 Mercedes-Benz E 3.0L Diesel · OY66 OED

This W212-series Mercedes-Benz E-Class presents an exceptionally clean roadworthiness profile across its recorded DVSA test history, with five consecutive passes at the most recent annual assessments from 2022 through 2025. Not a single advisory, minor defect, or component concern has been logged on any of these examinations, which is a notably uncommon outcome for a ten-year-old executive saloon of this calibre. The sole entry that breaks the otherwise immaculate sequence is a failure recorded on 3 October 2022, though interestingly the DVSA register shows no defects associated with that test, indicating a likely administrative or presentation-related refusal rather than a mechanical or structural concern. The vehicle was subsequently presented and passed without advisories the following day, confirming that whatever prompted the earlier refusal was rectified immediately and has not reappeared on any subsequent examination. This uninterrupted run of clean tests speaks to consistent mechanical integrity and structural soundness across the major safety systems typically scrutinised at annual MOT inspection. With 51,364 miles accumulated over approximately a decade of use, the vehicle has averaged just over 5,100 miles annually, placing it firmly in the low-mileage category relative to its peer group. This rate of accumulation is well below the typical 8,000 to 12,000 miles per year expected of a saloon of this size and class, suggesting either secondary or limited-use status, prolonged periods of inactivity, or predominantly short-journey utilisation. The MOT testing record shows consistent annual attendance with no multi-year gaps, indicating the vehicle has been kept on the road continuously throughout the recorded period rather than subjected to extended SORN lay-ups that might otherwise raise concerns about dormant corrosion, dried seals, or perished flexibles. That said, low annual mileage does place greater relative stress on certain components per mile covered, as cold-start wear and short-trip thermal cycling disproportionately affect engine oil, the diesel particulate filter or petrol direct-injection system, brake discs and pads (which can suffer from surface corrosion through underuse), and the 12V auxiliary battery. For a prospective buyer conducting a pre-purchase evaluation, the absence of any recorded advisories means there is no specific component history to interrogate further, but the vehicle's age and mileage profile still warrant targeted physical inspection in several areas. On a test drive, listen carefully for any clonks, knocks, or rattles from the front suspension over uneven surfaces, as the W212's lower control arms, front thrust arms, and anti-roll bar drop links are known wear items that can deteriorate silently between annual tests, particularly on cars that have seen urban use. Feel for any steering vagueness, pulling to one side under braking, or vibration through the brake pedal, as the brake discs and caliper slide pins should be inspected for corrosion pitting and binding respectively, especially given the low annual mileage which encourages surface oxidation on the braking surfaces. Examine the underbody and wheel arches for any bubbling or surface corrosion around the jacking points, sills, and rear subframe mounting areas, and verify that all exterior trim, door checks, and the boot lid struts operate as expected. Finally, confirm a full documented service history covering not just engine oil and filters but also transmission fluid, brake fluid renewal, and coolant replacement, as these items age by calendar rather than mileage and a low-use vehicle still requires periodic attention to remain mechanically sound.