2017 Mercedes-Benz A-Class 2.1L Diesel · RY54 AFY

This Mercedes-Benz A-Class has demonstrated a recent pattern of requiring significant rectification work to achieve roadworthiness, following an initial period of clean MOT passes. While the vehicle passed its most recent MOT test on 7th April 2026, this was immediately preceded by a failure on the same day, which included a critical Engine MIL (Malfunction Indicator Lamp) being inoperative or indicating a malfunction, alongside failed offside front position and main beam headlamps. This follows another failure on 2nd April 2024, where a dangerous nearside front tyre with ply or cords damaged was identified, in addition to a major defect for insufficient windscreen washer liquid and a nearside front main beam headlamp not working. Recurring advisories for an oil leak and corroded brake discs were also noted in the April 2026 test cycle. With 106,857 recorded miles over approximately nine years, the vehicle has accumulated mileage at a rate typical for its age, averaging around 11,873 miles per year. This level of usage suggests consistent operation, which generally leads to wear on consumable components such as tyres, brake pads and discs, and suspension bushes, as well as placing demands on the drivetrain and engine components. There are no notable gaps in the MOT history that would indicate prolonged periods of inactivity. Given the recent MOT failures, particular attention should be paid to the areas previously flagged. The Engine MIL failure in April 2026 is a significant concern; although rectified for the pass, it indicates a fault within the engine management system. A pre-purchase inspection should include a diagnostic scan for any stored or pending fault codes to understand the root cause of this issue. During a test drive, listen for any unusual engine noises, misfires, or a lack of power, and observe if the MIL illuminates. The recurring advisory for an oil leak, present in the April 2026 tests, warrants a thorough inspection of the engine bay and underside to determine the source and severity of the leak. While noted as "not excessive," persistent oil leaks can indicate failing seals or gaskets and may lead to contamination of other components. The advisories for corroded edges on all four brake discs also suggest they may be nearing the end of their service life; check for any judder or pulsing through the brake pedal during braking, which could indicate warped or excessively worn discs. Finally, inspect all exterior lighting, particularly the headlamps, given the repeated failures for both nearside and offside main beam functions in recent years.