2017 Mercedes-Benz A-Class 1.5L Diesel · KS66 AAE

A pattern of deteriorating braking efficiency and tyre degradation defines the recent history of this vehicle, culminating in a dangerous failure in January 2025. This failure was specifically due to rear brake pads wearing below 1.5mm, following an advisory for thin pads a year prior. While the latest test on 20 January 2026 returned a clean pass with no defects, the preceding records highlight a period of critical wear on the rear braking system and multiple tyre defects. The recorded mileage of 71,742 miles is consistent with the age of the vehicle, averaging approximately 7,971 miles per year. This level of usage indicates a typical duty cycle, meaning that the wear observed on consumables like brake pads and tyres is expected for this mileage. There are no significant gaps in the testing history, suggesting the vehicle has remained in active use rather than suffering from long-term stagnation. Attention should be directed toward the rear braking system given the history of pitted and scored discs and the dangerous pad wear recorded in 2025. During a test drive, feel for any pedal judder or vibrations under braking, which could indicate that the previously pitted discs were not replaced or were not machined correctly. Ensure the brake pedal response is firm and consistent, as the transition from a dangerous failure to a clean pass suggests a significant component replacement that should be verified through feel. The tyre history, specifically the reports of cracking, cuts, and edge wear on the rear tyres, warrants a close physical inspection. Check for uneven tread wear across the width of the tyres, which may point to underlying suspension alignment issues or worn suspension bushes. Listen for any abnormal road noise or steering pull during the test drive, as these symptoms often correlate with the tyre perishing and edge wear flagged in the 2025 records.