2015 Mercedes-Benz C 2.1L Diesel · AF54 AND

The 2015 Mercedes-Benz C-Class presents a stable and improving maintenance trend, culminating in a completely clean pass on 24 October 2025 at 93,451 miles with zero defects recorded. That result marks a clear improvement over the 2021 test, where the tester flagged an offside front tyre worn close to legal limit and worn on edge. The subsequent four consecutive passes, including the most recent, suggest the previous owner addressed that tyre wear and has maintained the vehicle to a consistent standard since late 2022. The mileage accumulation tells a coherent story. Between the December 2021 test at 58,699 miles and the October 2025 test at 93,451 miles, the car covered roughly 34,752 miles across nearly four years, averaging approximately 8,688 miles per year. That figure aligns closely with the vehicle's lifetime average of around 8,496 miles per year, indicating steady, typical use rather than prolonged standing or sudden high-mileage bursts. The annual test intervals are regular and well-spaced, with no suspicious gaps that might suggest the car sat unused for extended periods or that mileage was manipulated. From a mechanical standpoint, the absence of any advisories or failures across the last four tests is encouraging, but a buyer should still conduct a thorough in-person inspection. The 2021 offside front tyre advisory hints at possible alignment or suspension geometry issues, so checking the condition of all four tyres for uneven wear patterns remains worthwhile. At nearly 94,000 miles, the front suspension bushes, coil springs, and drop links deserve close scrutiny for play or deterioration, along with the condition of the brake discs and pads, which may be approaching replacement age. Inspecting the underside for corrosion, particularly around the subframes and suspension mounting points, is also prudent given the vehicle's age. The exhaust system should be examined for leaks or deterioration, and a road test will reveal whether the steering, gearbox, and engine mounts feel tight and free of excessive vibration or clonking.