2016 Mercedes-Benz CLS 3.0L Diesel · LC66 XCJ

The latest MOT test for this Mercedes-Benz CLS resulted in a pass with no recorded defects as of November 2025. An analysis of the recent testing history reveals a recurring pattern where the vehicle has failed an inspection only to pass upon re-test, specifically in both 2024 and 2025. While the absence of specific defect descriptions in the provided records prevents a definitive diagnosis of the previous failures, this trend suggests that the vehicle requires periodic remedial work to maintain roadworthiness. Overall, the maintenance trend appears to be one of reactive compliance, where issues are addressed to meet the MOT standard rather than being managed through a proactive preventative maintenance schedule. With 85,114 miles recorded over approximately ten years, the vehicle has covered an average of roughly 8,500 miles per annum. This level of usage is consistent with typical private ownership for a vehicle of this class and does not suggest excessive wear from high-mileage commuting or the potential degradation associated with long periods of stationary storage. Mechanically, this moderate mileage profile is generally positive, as it implies that components such as the engine, gearbox, and suspension systems have been used regularly enough to prevent seizing or excessive fluid degradation, while avoiding the accelerated component fatigue seen in much higher-mileage examples. As there are no current advisories or specific historical defects listed, your inspection should focus on age-related wear and time-based degradation. Closely examine the tyres for any signs of sidewall cracking or perishing, which can occur due to age regardless of tread depth. Check the brake discs for significant corrosion or pitting and listen for any signs of binding calipers or uneven braking during your test drive. It is also essential to verify the service history to confirm that fluid-based maintenance, such as brake fluid and coolant replacements, has been carried out according to the manufacturer's time-based intervals rather than just mileage. During the test drive, pay particular attention to the suspension by listening for any knocks or clunks over uneven surfaces, which could indicate worn bushes or failing dampers. Inspect the engine bay for any signs of weeping from gaskets or oil leaks, as rubber seals can become brittle over a decade of use. You should also test the air conditioning performance and check the condition of the 12V battery, as these are common areas of concern for a ten-year-old premium vehicle. Finally, ensure the vehicle's structural integrity is sound by checking for any signs of underside corrosion that may have developed over time.