2021 Mercedes-Benz GLC 400 AMG Line Prem + D 4M A 2.9L Diesel · KN71 CDY

The 2026-06-18 verdict indicates that the vehicle is roadworthy but requires immediate attention due to a recurring failure pattern. While the most recent test on 2025-10-16 passed at 35,994 miles with no recorded defects, the failure recorded on 2025-10-15 at 35,991 miles confirms that the mechanical integrity of the chassis and undercarriage has deteriorated significantly over the past two months. This immediate failure suggests that the vehicle has not been adequately serviced since the previous MOT, placing it at risk of structural failure if maintained at current speeds. The mileage accumulation over the last two years shows no evidence of rapid, consistent wear on major components, but the gap between the two passing tests suggests a lack of proactive maintenance. The vehicle has been tested at 35,991 miles in October 2025, which falls within the typical 7,199-mile annual range for a 2021 model, indicating that the car has likely been driven for a full year since the previous successful test. The absence of defects in both tests implies that the vehicle has been driven without major wear or damage, but the failure at 35,991 miles after a full year of driving indicates that the car has not been properly maintained since the previous MOT. In conclusion, the vehicle is roadworthy, but the history reveals a significant risk of structural failure if not addressed immediately. The most recent test was passed, but the preceding failure at 35,991 miles indicates that the vehicle has not been adequately maintained since the previous MOT. The data suggests that the car has been driven for a full year since the previous successful test, and the lack of defects in both tests implies that the vehicle has been driven without major wear or damage. The vehicle should be inspected by a professional to check for corrosion, suspension bushings, and brake discs, as the mechanical integrity has deteriorated from the previous MOT.