2015 Mercedes-Benz CLS 3.0L Diesel · PL65 WDU

The most recent MOT test conducted on 08 August 2026 resulted in a pass, although it noted minor windscreen damage. Evaluating the overall maintenance trend, the vehicle appears to have been consistently maintained with a stable history of passes and no major failures related to structural integrity or emissions. While there was a failure in July 2024 regarding windscreen wiper effectiveness, this was a minor consumable issue that has since been resolved. The recurring minor note regarding windscreen damage over the last two years suggests minor stone chips or environmental impacts that do not currently compromise driver visibility but should be monitored to ensure they do not spread. The recorded mileage of 104,218 miles for an eleven-year-old vehicle represents an average annual usage of approximately 9,474 miles. This is a typical usage profile for a premium saloon, indicating that the vehicle has been used regularly without the excessive wear associated with high-mileage commercial use or the degradation caused by prolonged periods of standing. However, as the vehicle has surpassed the 100,000-mile threshold, you should be mindful that many major mechanical components, such as the turbocharger, timing chain, and various suspension bushings, are entering a period of increased wear and may require significant investment in the near future. A critical area for inspection is the 2022 advisory concerning the nearside front suspension air bag boot fouling the tyre. Because the CLS often utilizes complex air suspension systems, this is a high-priority item. You must confirm whether this was rectified with a replacement part or if the component is still misaligned. During your test drive, pay close attention to the vehicle's ride height when stationary and listen for any audible hissing from the wheel arches. Any unevenness in the ride or a sensation of the car dipping on one side could indicate a failing air bag or a leak in the pneumatic system. Additionally, inspect the nearside front tyre for any signs of rubbing or irregular wear that could indicate the boot is still making contact with the rubber. Beyond the specific suspension history, you should perform a comprehensive check of all age-related consumables. Inspect the tyre sidewalls for any signs of perishing or cracking, which is common in vehicles of this age regardless of tread depth. Check the brake discs for excessive corrosion or pitting and ensure the calipers are not binding, which can lead to overheating and uneven pad wear. Given the vehicle's age, it is also vital to verify the service book for evidence of regular fluid changes, specifically engine oil and coolant, as these should be replaced on a time-based schedule to prevent internal degradation. Finally, check for any signs of fluid leaks from the engine or gearbox to ensure the drivetrain remains robust.