2006 Mercedes CLS 3.0L Diesel · OV06 KXE

The most recent MOT inspection on 13 December 2025 resulted in a pass, but the vehicle presents a concerning trend of accumulating advisories and minor defects that suggest a gradual decline in preventative maintenance. While the car passed without a failure this year, the presence of multiple advisories regarding oil leaks, suspension wear, and brake pipe corrosion indicates that several mechanical issues are currently in a state of progression. The history shows a pattern of recurring issues, particularly with tyres and braking components, which suggests that while the vehicle is being kept roadworthy, repairs are often reactive rather than proactive. With 194,681 miles recorded over approximately twenty years, the vehicle has averaged roughly 9,734 miles per year. This is a very typical usage profile for a high-end executive saloon of this era, suggesting the car has been used regularly for long-distance motoring rather than suffering from the detrimental effects of prolonged periods of standing. However, this consistent mileage accumulation means that high-wear components such as suspension bushes, steering rack joints, and drivetrain seals are likely approaching the end of their service life. The mechanical stress of nearly 200,000 miles necessitates a very thorough inspection of the engine's integrity and the condition of the gearbox and differential. A prospective buyer must pay close attention to the specific advisories noted in the latest report. The reported oil leak should be investigated immediately to determine if it is a simple gasket weep or a more significant failure of a major seal, as even non-excessive leaks can lead to engine damage if oil levels drop. The advisory regarding the nearside front suspension arm bush indicates impending wear; during a test drive, listen for knocking or clunking sounds when driving over uneven surfaces or turning the steering wheel. Furthermore, the corroded rear brake pipes are a significant long-term concern. Although they are currently covered in grease, corrosion in brake lines can lead to sudden hydraulic failure, so you should check for any signs of fluid weeping around the connections or any spongy feel in the brake pedal. The tyre and braking history is particularly noteworthy and requires careful physical inspection. Previous failures for tread depth and exposed cords, combined with recent advisories for worn edges on the rear tyres, suggest possible issues with wheel alignment or suspension geometry. Check the tyres for uneven wear patterns, particularly on the inner or outer edges, which could indicate worn control arms or incorrect camber settings. Additionally, the history of fluctuating brake performance and scored discs means you should test the vehicle for any brake shudder or pulsation when braking at motorway speeds. Ensure the braking system is smooth and that there is no evidence of binding calipers, which can cause overheating and premature disc wear.