2017 Mercedes-Benz C 2.0L Petrol · KS17 HFR

The 2017 Mercedes-Benz C-Class presents a stable and improving maintenance trend, culminating in a completely clean MOT pass on 16 April 2026 at 67,211 miles with zero defects recorded. That result is a marked improvement over the 2024 test, where the tester noted a smell of fuel with no obvious leaks at 55,422 miles. The fuel smell advisory has since cleared, suggesting the issue was addressed rather than left to fester. Across the full five-test history, the vehicle has never recorded a failure, which indicates a baseline level of attentive ownership. The mileage accumulation is remarkably consistent and typical for a nine-year-old car. Between April 2022 and April 2026, the odometer moved from 40,662 to 67,211 miles, averaging roughly 6,637 miles per year over that four-year window. The earlier years from 2017 to 2022 account for the remaining miles at a similar pace, showing no sudden spikes or suspiciously long stationary gaps. This steady usage pattern is mechanically favourable, as it points to regular running rather than prolonged sitting, which can cause brake seizure, tyre flat-spotting, and fuel system stagnation. Despite the clean recent result, the 2024 fuel smell advisory warrants attention during any pre-purchase inspection. A buyer should have a technician check the fuel filler neck seals, charcoal canister, and fuel line connections for slow seepage that may not yet trigger a visible leak or fail. On a C-Class of this age and mileage, the underbody should also be inspected for corrosion along suspension mounting points, subframes, and sills, as Mercedes-Benz models from this era can develop surface and structural rust depending on climate and road salt exposure. The suspension and braking systems deserve a thorough check given the 67,211-mile reading. Front lower arm bushes, rear trailing arm links, and anti-roll bar drop links are common wear items on this platform that may not always trigger an MOT advisory until significantly degraded. Brake disc thickness and pad condition should be measured rather than assumed, particularly at the rear, where caliper slide pins on C-Class models are known to seize. Tyre condition and age should also be verified, as original or aged rubber may still pass a tread depth check but lack the structural integrity expected for a vehicle approaching seven decades of thousands of miles.