2018 Mercedes-Benz A-Class 1.5L Diesel · KT68 DDV

Recurring wear in the front suspension assembly defines the mechanical history of this Mercedes-Benz A-Class, culminating in a failure for an excessively worn offside front suspension arm ball joint during the test conducted on 8 January 2026. While the vehicle successfully passed that same day following rectification, the record shows a clear progression from a minor advisory for slight play in the same component in January 2025 to a formal failure twelve months later. This pattern indicates that the suspension geometry has been subject to sustained stress, necessitating a focused inspection of the front-end components to ensure that the repair was comprehensive and that no secondary damage occurred to related bushings or steering linkages during the period of increased play. Accumulating 72,160 miles over eight years results in an average annual usage of approximately 9,020 miles, a figure that aligns with standard expectations for a vehicle of this age. The testing history is consistent, with annual assessments performed since the vehicle reached its first MOT requirement, indicating that the car has remained in regular operation without extended periods of inactivity. This level of usage suggests that the powertrain and drivetrain have been subject to typical thermal cycling and road wear rather than the specific issues associated with long-term storage or high-intensity fleet usage. Prospective buyers should prioritise a physical inspection of the offside front suspension arm and its associated ball joint to confirm the quality of the recent repair. During a test drive, listen specifically for any metallic knocking or clunking sounds when navigating uneven road surfaces, speed bumps, or tight low-speed turns, as these are primary indicators of lingering play in the suspension arms or worn anti-roll bar links. Additionally, monitor the steering for any tendency to pull to the offside, which could suggest that the wheel alignment was not correctly reset following the replacement of the ball joint. Given the 2025 advisory regarding uneven tyre wear on the offside front, it is essential to inspect the current front tyres for irregular tread patterns. Uneven wear across the width of the tyre can be a symptom of incorrect camber or toe settings that were not addressed when the suspension component was replaced. Furthermore, because the 2024 test noted that engine covers and undertrays obscured several testable components, ensure that the underside of the engine and transmission is inspected for any signs of oil misting or fluid leaks that may have been hidden from the tester's view during previous inspections.