2017 Mercedes-Benz C 2.0L Petrol · GIL 7010

The most recent MOT test conducted on 2026-01-05 resulted in a failure, with the vehicle displaying persistent issues that were not present in prior clean tests. The pattern of results indicates a deterioration in the vehicle’s condition over the past year, particularly with recurring tyre-related advisories and a persistent engine malfunction indicated by the MIL (Malfunction Indicator Lamp). While the 2025 test showed no defects, the subsequent failures highlight a concerning trend where the tyre wear and engine diagnostics have returned, suggesting either unresolved underlying issues or a gradual degradation in component integrity. This instability warrants cautious consideration, as the engine’s failure criteria—particularly the MIL—could stem from a range of potential problems, from minor electrical faults to more critical internal engine wear or sensor failures. The advisories on tyre damage and edge wear also point to either prolonged exposure to adverse road conditions or neglect in addressing earlier warnings, which may have accelerated wear beyond the legal limits. The vehicle’s recorded mileage of 36,211 miles at 9 years old represents a notably low annual usage rate of approximately 4,023 miles per year. Such low mileage is unusual for a car of this age and typically suggests either infrequent driving, long periods of stationary use, or a vehicle that has been kept in a less demanding operational state. However, low mileage alone does not guarantee mechanical health, as standing vehicles can suffer from issues such as brake disc corrosion, binding calipers from lack of movement, or fluid degradation due to stagnation. The advisories on tyre wear close to the legal limit, particularly on the rear tyres, may also reflect uneven or excessive wear patterns that could be exacerbated by prolonged idling or improper alignment. Additionally, the engine’s malfunction indicator recurring in multiple tests implies that the vehicle may have been driven intermittently, potentially leading to intermittent symptoms that were not fully addressed in previous MOTs. For the prospective buyer, the most critical areas to inspect are the tyres, engine diagnostics, and suspension components. The advisories on tyre damage and edge wear indicate that the tyres should be thoroughly examined for signs of cracking, perishing, or uneven tread distribution, which could compromise traction and safety. On a test drive, listen for unusual noises from the tyres, such as excessive squealing or grinding, and check for any lateral movement or vibration that might suggest misalignment or internal damage. The engine MIL failure is particularly concerning, as it may point to a failing sensor, wiring issue, or more serious internal engine wear. Inspect the engine bay for any oil leaks, unusual smoke from exhausts, or vibrations that could indicate mechanical problems. Additionally, verify the vehicle’s service history to confirm that the engine and transmission have been serviced according to the manufacturer’s recommendations, particularly focusing on oil changes and filter replacements. Beyond the immediate concerns, the buyer should conduct a comprehensive physical inspection for signs of standing-related deterioration. Check the brake system for corrosion on discs and linings, particularly on the rear brakes where standing can cause rust buildup and binding calipers. Inspect the suspension for any signs of stiffness, excessive play, or corrosion in the bushes and struts, as prolonged idling can accelerate wear in these components. The battery should be tested for voltage and health, as low usage can lead to sulfation or weak terminals. Fluid levels, including brake fluid, coolant, and transmission fluid, should be checked for freshness and contamination, as fluids degrade over time even when not in use. Finally, verify the vehicle’s alignment and tyre pressure, as uneven wear patterns may have developed due to misalignment or improper inflation, which could have been exacerbated by the low mileage profile. If the buyer is concerned about the engine’s condition, a pre-purchase inspection by a qualified mechanic is strongly recommended to assess the underlying cause of the MIL and the extent of any internal engine wear.