2019 Mercedes-Benz C 3.0L Petrol · T222 ADB

The May 2026 retest at 63,203 miles returned a clean pass, but the initial failure six days earlier on both rear tyres worn to the edge and inoperative washer jets reveals a maintenance pattern that is reactive rather than preventative. The 2025 test at 59,895 miles had already flagged the front tyres worn on the edge, meaning all four corners have now shown edge-wear advisories within two consecutive tests. That recurrence points to a persistent geometry or suspension issue rather than simple tread ageing, and the washer jets suggest basic fluid checks were overlooked. Mileage accumulation has been erratic. The car covered roughly 15,200 miles between June 2022 and July 2023, then dropped to 3,500 miles in the following year, 5,900 miles to July 2025, and only 3,300 miles to the latest test. Such a sharp decline after the first year often indicates a change of keeper or a shift to very short urban cycles, which accelerates brake and tyre wear relative to distance travelled. The 2022 advisory for thin pads on all four axles at just 35,287 miles supports that interpretation; pads should last longer on a Mercedes unless the driving is predominantly stop-start. A buyer should verify the current brake disc and pad thicknesses, as the 2022 advisory was never followed by a replacement advisory, implying the original set may still be fitted at 63,000 miles. The consistent edge wear on tyres across both axles warrants a four-wheel alignment check and inspection of suspension bushes, control-arm ball joints and rear subframe mounts for play or corrosion. Finally, confirm the washer pump and non-return valves function correctly; a failure on both jets simultaneously usually traces to a blocked filter or failed pump rather than individual nozzles.