2017 Mercedes-Benz CLA 2.1L Diesel · LC67 FUD

The most recent MOT test on 2026-01-17 returned a clean pass, but the overall maintenance trend over the past three years is one of persistent but manageable wear-related advisories rather than a clear improvement or deterioration. While the vehicle passed all other tests, the recurring front and rear brake disc wear, along with thinning brake pads, indicates a gradual but consistent degradation in braking performance. These advisories have been consistently flagged since 2024, suggesting either prolonged use without timely pad replacement or a design or installation issue that has not been fully resolved. The failed MOT in 2024-02-10 for insufficient washer liquid was a minor but critical oversight, highlighting a need for proactive attention to fluid levels and system functionality. The recorded mileage of 49,567 miles for a vehicle aged nine years represents a relatively low annual usage rate of approximately 5,507 miles per year, which is unusually low for its age. Such a mileage profile often suggests periods of prolonged inactivity, potentially leading to issues such as standing corrosion on brake components, fluid degradation from stagnation, or tyre perishing due to reduced movement. However, the consistency of the mileage data—without evidence of sudden spikes or erratic usage—does not immediately suggest severe wear beyond what is expected from the advisories. The low mileage does not necessarily indicate better mechanical condition but rather a different operational profile, meaning wear patterns may differ from those of a higher-mileage vehicle. For a prospective buyer, the most critical areas to inspect are the braking system and tyres, given the recurring MOT advisories. The worn brake discs, which are pitted but not seriously weakened, should be replaced soon, ideally before they develop deeper grooves or cracks that could compromise stopping performance. During a test drive, listen for uneven brake pedal travel, a pulsating or shuddering sensation when braking, or excessive brake dust buildup around the wheels, which could indicate warped discs or worn pads. Additionally, check for any clunking noises from the suspension, which may signal worn suspension bushes or coil springs, and inspect for uneven tyre wear patterns, particularly on the edges of the rear tyres, which could point to alignment or camber issues. Ensure the brake fluid reservoir is topped up and free of contamination, as low fluid levels or air in the system can exacerbate brake performance. Beyond the braking system, given the low annual mileage, focus on the vehicle’s standing condition and time-based maintenance. Inspect the tyres for signs of sidewall cracking or perishing, which can occur even at low mileage due to prolonged exposure to UV light and temperature fluctuations. Check the 12V battery for signs of corrosion on terminals and ensure it holds a charge when static, as low usage can lead to battery drain or failure. Verify that the windscreen washer system is functional and refill the reservoir with the correct washer fluid, as the 2024 MOT failure underscores the importance of this minor but critical component. Lastly, since the vehicle has not undergone a full service in recent years, consider a thorough inspection of fluid levels—particularly brake, coolant, and power steering fluids—and check for any leaks under the vehicle. If the service history is sparse, confirm that the last oil change was performed within the manufacturer’s recommended interval, as oil degradation accelerates with age and inactivity.