2015 Mercedes-Benz A-Class 1.5L Diesel · TH61 AMH

A pattern of front-end steering and suspension wear is the defining mechanical theme of this 2015 Mercedes-Benz A-Class across its recorded MOT history, with the situation escalating from minor advisories to a serious failed test before stabilising at its most recent assessment. The 2025-05-28 failed test recorded a track rod end with excessive play at the offside front, a fractured nearside rear coil spring, and a dangerously cut offside rear tyre, representing three distinct categories of safety concern that should not occur simultaneously on a roadworthy vehicle. The very same date also shows a passed test with no defects recorded, indicating a retest on the same day after the defects were addressed. The most recent assessment on 2026-05-26 passed but carried forward renewed concerns, with both front inner tyres once again flagged as worn close to the legal limit on their edges and a slight play now noted in the offside front suspension arm ball joint. The recurrence of front-end geometry-related wear across multiple years suggests an underlying issue that has not been fully resolved, and the appearance of a fractured rear coil spring alongside pre-existing rear coil spring corrosion flagged back in 2022 points to progressive structural deterioration in the rear suspension. Recorded mileage of 89,340 miles over approximately eleven years equates to an average accumulation of roughly 8,100 miles per year, which is broadly typical for a vehicle of this age and is neither indicative of extreme high-mileage use nor extended periods of standing. The MOT test dates follow a relatively consistent annual cadence from 2020 onwards, with no multi-year gaps that would suggest the vehicle was laid up off the road, meaning the mechanical components have been subjected to regular in-service loading. The fact that suspension and tyre wear items have appeared repeatedly despite this steady usage reinforces the impression that component quality or geometry settings, rather than sporadic heavy use, are the primary driver of the recorded defects. For a prospective buyer, the front suspension and steering assembly should be the primary focus of any pre-purchase inspection, given the track rod end failure in 2025 and the renewed ball joint play advisory in 2026. On a test drive, listen for clonking or knocking noises from the front wheels when traversing speed bumps or potholes, and pay particular attention to any vagueness, looseness, or slack in the steering, especially around the central straight-ahead position where worn ball joints typically manifest as delayed response or a slight wandering sensation. The steering should also be checked for any pulling to one side under braking, which can indicate worn front components contributing to uneven braking forces. With the tyres having been flagged on their inner edges twice in recent years, an inspection of the wheel alignment is strongly advised, as consistent inner-edge wear typically points to excess negative camber and if left unresolved will simply repeat the same advisory at the next test. The rear suspension warrants equally close attention given the fractured coil spring recorded in 2025 and the corrosion noted on both rear coil springs in 2022. When driving over uneven surfaces, listen for any metallic scraping, creaking, or unusual thumping from the rear axle area, which could indicate a further coil spring failure or compromised spring seats. The vehicle's ride height should be visually compared on both sides at the rear, as a noticeably lower stance on one side is a strong indicator of a collapsed or broken spring. Inspect the rear spring pans and surrounding bodywork for advanced corrosion, paying particular attention to the mounting areas where rust can weaken structural integrity. Given the recorded history of tyre damage at speed, the spare wheel or tyre repair kit should be confirmed as present and serviceable, and a thorough inspection of all four tyres for sidewall cuts, bulges, or uneven tread wear should form part of any viewing, with the seat belt webbing condition at the rear also checked.