2018 Mercedes-Benz C 1.9L Diesel · WU68 YEB

The most recent MOT test on the 2018 Mercedes-Benz C recorded a passing result on 2025-11-06, following a failure in November 2024 due to a critical near-side front coil spring fracture, which is a severe structural and safety-related defect. This incident represents a significant maintenance lapse, as coil springs are critical for suspension integrity, load distribution, and ride quality, and their failure can lead to uneven tyre wear, excessive road noise, or even vehicle instability if left unresolved. While the vehicle has since passed subsequent MOTs without further defects, the prior failure suggests a pattern of either inadequate maintenance or underlying wear that may have been exacerbated by prolonged exposure to service neglect. The intervening clean MOTs indicate some recovery in roadworthiness, but the history underscores the importance of addressing suspension components promptly to prevent progressive deterioration. The vehicle’s recorded mileage of 56,274 miles at the time of assessment aligns with a typical annual usage rate of approximately 7,034 miles, which is reasonable for a car of this age and class. However, the mileage data alone does not fully explain the suspension failure, as lower mileage could reflect periods of inactivity or light use, potentially accelerating wear from standing or environmental exposure. Conversely, higher mileage might indicate more aggressive driving or wear on consumables like tyres, brakes, and fluids. The absence of recent high-mileage spikes suggests steady use, but the critical coil spring failure suggests either a pre-existing condition that accelerated under stress or a lack of routine suspension servicing, which could have been mitigated with regular inspections of suspension bushes, shock absorbers, and mounting points. Given the history of coil spring failure and the advisories on tyre wear, the buyer should conduct a thorough inspection of the suspension system. Focus on the near-side front coil spring, which was the point of failure, and inspect for signs of further degradation such as rust, excessive flexing, or binding in the mounting points. On a test drive, listen for unusual clunking or rattling noises from the front suspension, particularly when driving over bumps or at speed, as these can indicate coil spring or mounting issues. Additionally, check for uneven tyre wear patterns, which may reveal suspension misalignment or component failure. The advisories on rear tyre wear close to legal limits and slight cracking suggest that the tyres are approaching their serviceable life, and replacing them promptly will improve handling, safety, and fuel efficiency. Ensure the tyres are rotated regularly to maintain even wear and inspect for sidewall damage or perishing, which can compromise tyre integrity over time. For the broader vehicle inspection, verify the condition of the near-side rear tyre for further damage or perishing, as the previous MOT noted slight cracking, which could worsen with continued use. Inspect the rear suspension for signs of wear in bushes, control arms, or struts, as these components can also contribute to tyre wear or handling issues. Check the brake system for signs of corrosion on discs or binding calipers, particularly if the vehicle has been stationary for prolonged periods, as standing can accelerate rust formation. Test the near-side rear position lamp for functionality, ensuring it meets legal standards and does not pose a safety risk. Finally, given the age of the vehicle, consider checking the 12V battery for health, as older batteries may struggle with cold starts or electrical demands, and inspect the engine cover and under trays for debris or damage, as noted in the 2023 MOT advisory. Ensure all fluids—oil, coolant, brake fluid, and transmission fluid—are at the correct levels and show no signs of degradation, as fluid changes are critical for maintaining performance and longevity, especially for a vehicle with the wear history observed.