2017 Mercedes-Benz A-Class 1.5L Diesel · OV67 SWK

The most recent MOT test on 2026-05-16 resulted in a pass, though it did not entirely resolve the recurring issues that plagued the vehicle in prior tests. The overall maintenance trend appears to be stable rather than worsening, as the latest inspection did not flag any major defects beyond the existing advisories and minor issues. However, the pattern of repeated advisories—particularly concerning tyre wear, tyre sidewall damage, and anti-roll bar ball joint dust cover failures—suggests that underlying mechanical wear is progressing, warranting closer scrutiny. The presence of a dangerous failure in 2023 regarding exposed tyre cords indicates that the vehicle has not been fully maintained to prevent critical failures, and this must be addressed promptly to avoid further safety risks. The recorded mileage of 87,585 miles for a vehicle aged nine years represents a moderate annual usage rate of approximately 9,732 miles per year, which is consistent with typical usage for this model class. While this mileage is not exceptionally high, it does not necessarily correlate with excessive wear if the vehicle has been maintained appropriately. The absence of significant mileage gaps suggests that the vehicle has been in regular use, which could accelerate wear on consumables like tyres, brake pads, and suspension components. However, the repeated MOT failures—especially those linked to tyre degradation and anti-roll bar ball joint integrity—imply that either maintenance was inconsistent or the vehicle has been subjected to higher-than-average stress, potentially from rough driving or prolonged periods of standing without fluid circulation. For a prospective buyer, the most critical areas to inspect are the tyres, brakes, and suspension. The advisories from multiple MOTs regarding near and offside front tyres worn close to the legal limit and showing sidewall cracking or perishing demand immediate attention. Tyres worn on the edges or with exposed cords are highly dangerous and should be replaced without delay, as they compromise grip and handling. During a test drive, listen for uneven tyre wear patterns, which may indicate misalignment or suspension issues, and check for excessive vibration or clunking noises that could signal worn suspension bushes or binding calipers. The anti-roll bar ball joint dust covers failing in two separate MOTs suggest that the ball joints themselves may be degrading, leading to increased road noise and potential suspension failure. Inspect the ball joints for play or excessive movement, and listen for clunking when the vehicle is driven over bumps or corners. Beyond the mechanical concerns, the vehicle’s history shows several minor but recurring issues, including missing or damaged obligatory mirrors and windscreen wipers that did not clear the glass effectively. These are cosmetic or functional defects that do not affect roadworthiness but should be repaired to maintain the vehicle’s appearance and visibility. The central seatbelt buckle failure in 2026 is a notable omission that must be rectified, as it poses a safety risk in the event of an accident. Additionally, while the MOT history does not show any major structural or emissions-related failures, the calendar-based degradation of fluids—such as brake fluid, coolant, and transmission fluid—should be considered. Given the vehicle’s age, these fluids should be replaced every two years or 60,000 miles, whichever comes first, to prevent corrosion, seal failure, or hydraulic system failure. Finally, check the 12V battery health, as prolonged standing or infrequent use can lead to sulphation or weak terminals, which may require a replacement or deep cycle charging. A thorough visual inspection of the battery, including corrosion on terminals and a test of its cranking amps, is essential. Lastly, verify that the service book or maintenance records are up to date, as the lack of recent service stamps may indicate missed opportunities for preventive maintenance.