2018 Mercedes-Benz C 2.1L Diesel · FP18 FHS

The most recent MOT on 16 April 2026 was passed, with only an advisory noting that the nearside rear tyre is approaching the legal tread limit and shows edge wear. Apart from that, the test was clean. Looking back, the vehicle has a generally stable record, with three consecutive passes and a single failure in April 2025 when the front brake pads were recorded as dangerously thin. The failure was promptly addressed, as evidenced by the advisory in the following year indicating the pads were simply wearing thin, and the subsequent test passed. Overall the trend suggests the car is being maintained, though wear on the braking system and tyres is now becoming a focus. With a recorded 33,583 miles on a 2018 model, the average annual mileage works out at roughly 4,200 miles per year, which is considerably below the UK average for a vehicle of this age. Such low utilisation often points to periods of limited use or extended storage, rather than high‑stress driving. While the engine and drivetrain have likely benefited from the modest mileage, components that degrade with time rather than distance – rubber seals, hoses, battery plates and tyre compounds – may be approaching the end of their service lives despite the low miles. A prospective buyer should give particular attention to the front braking system. Even though the pads have been replaced since the 2025 failure, it is prudent to measure the remaining pad thickness and inspect the discs for scoring, glazing or rusted edges. During a test drive the driver should feel for any pedal pulsation, squealing or a soft, spongy pedal, all of which can indicate pad wear, disc contamination or caliper binding. The nearside rear tyre should be examined for tread depth across the width, sidewall cracking and any signs of uneven wear that could hint at mis‑alignment or worn suspension bushes. Any tyre that is within a few millimetres of the 1.6 mm legal limit should be replaced promptly. Given the vehicle’s age and low mileage, time‑related maintenance is equally important. The 12‑volt battery should be load‑tested, as prolonged periods of inactivity can lead to sulphation and reduced cranking power. Brake fluid, coolant and engine oil should be refreshed if they have not been changed within the manufacturer’s recommended intervals, typically every two years for brake fluid and annually or bi‑annually for oil depending on specification. Inspect the suspension for cracked or perished rubber bushings, especially on the front lower arms and rear trailing arms, and look for any corrosion on the chassis, wheel arches and under‑body panels that can develop during storage. Verifying a complete service book with regular oil changes, filter replacements and any major service stamps will give further confidence in the car’s overall mechanical health.