2014 Mercedes-Benz CLS 3.0L Diesel · KM14 TYZ

The vehicle is currently roadworthy following a successful test on 15 May 2026. However, the maintenance trend shows signs of recent instability after a mechanical failure just four days prior to that test. At 94,717 miles, the car failed for exhaust emissions exceeding manufacturer limits. While the vehicle passed the immediate re-test, this failure indicates a potential issue with engine combustion or sensor health that required urgent intervention to bring the car back into compliance. The mileage pattern is remarkably consistent for a twelve-year-old luxury saloon, averaging approximately 7,900 miles per year. Between April 2023 and April 2024, the car covered 3,591 miles, suggesting a period of lower usage. The subsequent jump of 2,142 miles between 2024 and 2025 shows a return to more typical driving patterns. This low annual mileage generally reduces wear on the drivetrain components, though it can lead to the degradation of rubber-based parts due to time rather than friction. A buyer should prioritise a physical inspection of the braking system and rubber components. The 2023 record at 87,356 miles flagged a parking brake lever requiring assistance, which often points to seized cables or worn mechanisms within the assembly. Furthermore, the 2024 advisory regarding perishing rear tyres at 90,947 miles suggests that the age of the rubber is impacting safety regardless of tread depth. Given the recent emissions failure, a diagnostic check of the oxygen sensors and particulate filter is also advisable to ensure the failure was not a symptom of a deeper engine fault.