2011 Mercedes-Benz A-Class 2.0L Diesel · KTF 4W

A significant structural and tyre-related failure dominates the MOT history of this 2011 Mercedes-Benz A-Class and must be the primary consideration for any prospective purchaser. On 14 October 2022 the vehicle failed its test with a Dangerous rear axle defect recorded as deformed and unserviceable, which represents a serious compromise to the rear suspension and axle geometry. This same test also produced four separate tyre advisories, with both front and both rear tyres noted as worn close to the legal limit and on edge, indicating that the rubber was at the end of its serviceable life at the point of inspection. The subsequent test on 29 November 2022 passed with no advisories, suggesting the axle and tyres were addressed, and since then the vehicle has recorded passes in 2023, 2024 and most recently on 2 December 2025 with no defects recorded. While the recent record is clean, the dangerous rear axle failure remains a material item in the vehicle's history and warrants close physical inspection of the rear suspension assembly, mounting points and tracking geometry before purchase. With 95,623 miles accumulated over fifteen years, the vehicle averages approximately 6,375 miles annually, which is broadly typical for a car of this age. The testing record is consistent with regular road use, beginning in June 2019 at 70,008 miles and progressing steadily through to the 2025 test at 95,540 miles. The mileage progression between tests does not show any extended periods off the road, and the gaps between annual tests remain within normal MOT scheduling windows, suggesting the car has been in continuous use rather than laid up. Given the cumulative mileage, wear on typical high-load consumables including the brake discs, pads, coil springs and suspension bushes should be expected, even though these specific components have not yet been flagged on the MOT record. The recorded usage pattern is otherwise unremarkable and does not raise particular concerns regarding storage conditions or irregular operation. The deformed rear axle recorded in 2022 is the most pressing item to investigate on a physical inspection. A-Class vehicles of this era use a simple torsion-beam rear axle, and a deformation can be caused by impact damage such as kerbing, pothole strikes or collision, all of which may have left residual distortion even after repair. On a test drive, listen for clonking or knocking from the rear over uneven road surfaces, particularly on speed bumps, and pay attention to any sensation of the rear end skipping, twitching or feeling unsettled during cornering. Check the rear tyres for uneven inner or outer shoulder wear, as a bent beam will continually scrub the rubber and could explain the multiple tyre advisories recorded in 2022. Inspect the underside of the rear beam for evidence of repair welding, patching or uneven paint, and verify that the vehicle tracks straight on a flat road without steering pull. The recurring tyre edge wear across multiple tests in 2020 and 2022 is also worth probing directly. Examine all four tyres for feathered edges, one-sided wear patterns or uneven tread depth, as this typically points to suspension geometry misalignment, worn front suspension components or tracking issues rather than simple age-related wear. On the test drive, feel for vibration through the steering wheel at speed, any wandering or instability in the front end, and listen for knocking from the front suspension over rough surfaces, as worn lower wishbone arms or anti-roll bar drop links are common on A-Class vehicles at this mileage. Finally, given the annual mileage and fifteen-year service life, request confirmation of recent replacement of brake discs and pads, check the brake pedal for any sponginess or judder under firm application, and inspect the exhaust system and underbody for corrosion, which is a typical concern for vehicles of this vintage operating in UK conditions with road salt exposure.