2014 Mercedes-Benz A-Class 2.1L Diesel · YK64 OAC

The most recent MOT test on 2025-10-21 confirms the vehicle remains roadworthy at 79,923 miles, with no defects recorded. However, the history reveals a concerning pattern of repeated failures at the same mileage intervals—both in August 2023 and August 2024—despite passing tests immediately after. This suggests either a recurring issue that was overlooked or a test centre error, but the lack of defects on passing tests implies the vehicle was mechanically sound at those points. The final pass in October 2025, just three months ago, indicates the current roadworthiness is stable, though the irregular failures warrant scrutiny of components prone to intermittent failure, such as suspension mounts or brake calipers. The mileage progression of approximately 6,660 miles annually aligns with typical usage for a vehicle of this age, though the abrupt jumps between tests—particularly the 6,000-mile gap between the failed and passed tests in 2024—are unusual. The identical mileage for failures (71,676 and 77,797) suggests either a misreading of the odometer or a deliberate reset, though the latter is unlikely without evidence of tampering. No extended periods of inactivity are evident, and the consistent annual mileage suggests regular use rather than neglect. The most recent test was conducted just three months prior, ensuring the vehicle meets current standards, but the historical anomalies demand closer inspection of high-wear areas. Given the repeated failures at similar mileages, a buyer should prioritise examining the suspension system—particularly the rear coil springs and bushes—for signs of fatigue or misalignment, as these are common causes of intermittent handling issues. The braking system should also be thoroughly checked for binding calipers, warped discs, or worn pads, especially if the failures coincided with brake-related advisories. Structural integrity, including underbody corrosion and subframe integrity, should be inspected, particularly around the wheel arches and sills, where rust can compromise safety. Finally, the exhaust system’s integrity should be verified, as catalytic converter or manifold failures often appear as emissions-related advisories. While the current MOT pass is valid, the historical irregularities indicate a need for a detailed mechanical review beyond the test’s scope.