2005 Mercedes-Benz CLS 3.5L Petrol · KN55 OTZ

A pattern of recurring tyre degradation and emerging suspension wear defines the recent mechanical profile of this Mercedes-Benz CLS, with the latest MOT passed on 3 March 2026 showing an increase in advisory items compared to previous years. While the vehicle has maintained a consistent pass record since 2018, the most recent inspection introduced concerns regarding front brake disc condition and play in both the nearside and offside front lower suspension arm ball joints. This shift from tyre-related advisories in earlier years to mechanical component wear in 2026 suggests that the vehicle is transitioning from simple consumable replacement to more complex component maintenance. The recorded mileage of 45,192 miles over a 21-year period represents an exceptionally low annual average of approximately 2,152 miles. Such a usage profile indicates the vehicle has spent significant periods stationary or has been used only for very short, infrequent journeys. Mechanically, this low frequency of operation can lead to specific issues such as the perishing and cracking of tyre sidewalls, which was documented in the MOT history between 2020 and 2021, and can sometimes result in uneven wear patterns or seized components due to lack of regular movement. Prospective buyers should pay close attention to the front end of the vehicle during a test drive to address the recent advisories regarding the lower suspension arm ball joints. Listen for any rhythmic knocking, clunking, or popping sounds when navigating uneven road surfaces or turning the steering wheel at low speeds, as play in these joints can compromise steering precision. Additionally, the advisory regarding pitted or scored front brake discs warrants a physical inspection; during a test drive, check for any pedal judder or vibration through the brake pedal when decelerating from higher speeds, which may indicate uneven disc surfaces. The history of tyre advisories, ranging from edge wear to cracking and perishing, suggests that rubber components may be reaching the end of their functional lifespan due to age rather than mileage. Ensure that all four tyres are inspected for sidewall cracking and that the tread depth is well above the legal minimum, particularly on the edges where previous wear has been noted. Given the recent appearance of brake and suspension advisories alongside a history of tyre issues, a thorough check of the front axle assembly is essential to ensure these emerging mechanical requirements are addressed.