2017 Mercedes-Benz A-Class 1.6L Petrol · BB04 CAL

A history of consistent roadworthiness was interrupted in January 2026 by a failure involving the braking system, which included a dangerous defect for rear brake pads worn below 1.5mm. This failure, recorded on 2026-01-21, also highlighted thin nearside front pads, pitted or scored discs on both axles, and an imbalance in the front braking system. While the vehicle subsequently passed its test on 2026-01-22, the sudden appearance of these defects after several years of clean records marks a shift in the vehicle's mechanical requirements. The recorded mileage of 58,508 miles over approximately nine years reflects a typical usage pattern of roughly 6,501 miles per year. This steady rate of accumulation suggests the vehicle has not been subject to extreme long-term standing nor excessive heavy-duty use. However, this level of mileage is consistent with the natural expiration of friction materials and the onset of surface corrosion on brake discs, as evidenced by the defects flagged in the most recent testing cycle. Given the recent failure for dangerous brake pad wear and the advisories regarding pitted and scored discs, a thorough inspection of the current braking hardware is necessary. The buyer should verify whether both the pads and discs were replaced on all four wheels or if only the minimum legal requirements were met to pass the test. Particular attention should be paid to the front braking system to ensure the previously noted imbalance has been fully rectified. During a test drive, the buyer should be alert for any pedal judder or vibrations under heavy braking, which can indicate that scored or warped discs remain on the vehicle. Any audible grinding or squealing during deceleration would suggest inadequate pad material or debris between the pad and disc. The steering should be monitored for any pull to one side during braking, which would indicate a persisting imbalance in the hydraulic pressure or caliper efficiency across the front axle.