2017 Mercedes-Benz A-Class 1.5L Diesel · SL04 HUG

The vehicle presented a PASS outcome at its most recent DVSA test dated 26 November 2025, although two Minor advisories were recorded against the front anti-roll bar ball joint dust covers, which were noted as severely deteriorated at both the nearside and offside positions. Two further advisories were raised regarding corrosion on the nearside and offside rear brake pipes, where the corrosion was noted as being covered in grease or other material. Reviewing the broader MOT trajectory, the vehicle has demonstrated generally consistent roadworthiness with PASS results recorded annually from 2020 through to the present, yet the pattern of advisories has shown a gradual upward trend in recent test cycles. While 2020, 2021 and 2024 returned entirely clean test sheets, the 2022 test recorded pitted rear brake discs, the 2023 cycle identified tyre wear issues including a dangerous nearside rear tyre with exposed plies, and the most recent examination has captured front suspension component deterioration alongside emerging brake pipe corrosion. This trajectory suggests that while the vehicle has not suffered from any catastrophic component issue, the accumulating advisories are reflective of a chassis and undercarriage reaching a stage where progressive wear items warrant closer scrutiny. With recorded mileage of 100,620 against a nine-year build age, the annual utilisation equates to approximately 11,180 miles per year, which sits broadly within typical expectations for a premium German hatchback of this vintage. The mileage progression across the recorded MOT entries indicates steady, consistent use rather than long periods of standing or aggressive high-mileage accumulation, which is favourable in terms of avoiding the worst consequences of calendar-related degradation such as seized calipers, perished rubber and stale fluids. However, given that the odometer has now crossed the six-figure threshold, cumulative wear on major mechanical assemblies including the engine, automatic or dual-clutch transmission, turbocharger, clutch assembly and suspension components should be assumed to be progressively advancing, even if no immediate failures have yet manifested on the MOT record. Particular attention should be directed toward the front anti-roll bar ball joint dust covers flagged in the most recent examination. Once these protective gaiters deteriorate to a severely perished state, moisture and road grit ingress accelerates wear on the ball joint itself, leading to play in the link and eventual knocking or clonking noises over uneven road surfaces, body roll irregularities during cornering, and unpredictable handling responses. The buyer should conduct a slow-speed test drive over speed humps, broken tarmac and gravel, listening carefully for clonking or rattling from the front suspension, and ideally request that the vehicle be placed on a ramp for a manual inspection of the drop links and ball joints for any discernible vertical or lateral play. Should the joints themselves prove worn, replacement of both sides along with new dust covers is advisable before further deterioration results in an MOT failure. The advisories pertaining to rear brake pipe corrosion, although currently masked by surface grease or protective material, indicate the onset of corrosion on the underbody braking hydraulic circuit. This is a known concern on vehicles of this age and exposure profile, where road salt and moisture collect on the undertray and chassis rails, and a buyer should undertake a thorough visual inspection from beneath the vehicle using a torch, paying particular attention to the rear brake lines running along the underbody and across the rear axle. Any evidence of advanced surface corrosion, bubbling beneath the protective coating, or weeping of brake fluid should prompt immediate rectification, as corroded brake lines represent a safety-critical failure point. Additionally, given the mileage and age, prospective buyers should verify the timing belt or chain service interval compliance depending on the engine variant, confirm recent replacement of brake fluid and coolant in line with calendar-based servicing schedules regardless of mileage, and examine the tyres carefully for age-related sidewall perishing even where tread depth appears adequate. The 12V battery should be load-tested as Mercedes-Benz auxiliary battery management systems are sensitive to voltage drop, and a history of short urban journeys at the recorded annual mileage may not have been sufficient to maintain full battery state of charge throughout the battery's service life.