2015 Mercedes-Benz CLS 2.1L Diesel · BN65 YPW

The 2015 Mercedes-Benz CLS presented for its most recent DVSA MOT on 26 September 2025 and was issued a clean pass with no advisories or defects recorded. Looking back over the five-year DVSA history available, the vehicle has demonstrated a highly consistent and stable maintenance pattern, passing every annual test without any recorded advisories apart from a single entry on the 2022 examination. The absence of recurring issues relating to suspension components, braking efficiency, lighting, or exhaust emissions is a positive sign of steady upkeep, and the lack of any advisories on the most recent pass suggests the car has either had any worn items proactively replaced prior to test or that it remains in good operational condition. Overall, the trend is one of stable, reliable roadworthiness with no evidence of deterioration across the recorded test history. With 115,876 miles accumulated over approximately 11 years, the vehicle is averaging around 10,534 miles per year, which is broadly typical for a car of this age and represents steady, moderate usage. There are no significant gaps in the MOT record that would suggest prolonged periods of standing, nor any unusually rapid accumulation that would imply sustained high-mileage motorway use. This kind of average annual mileage is generally favourable from a mechanical longevity standpoint, as it indicates the drivetrain, engine, and ancillaries have been regularly exercised rather than left to deteriorate from disuse. At this odometer reading, however, one should expect wear-related consumption of items such as suspension bushes, coil springs, brake discs and pads, and various rubber gaiters, even if none have yet triggered an MOT failure or advisory. Given the clean MOT history and the modest annual mileage, the prospective buyer should focus on age-related degradation rather than chasing specific advisories. Tyres on a Mercedes-Benz of this vintage warrant particular attention: even if the tread depth is adequate, the sidewalls should be carefully inspected for perishing, cracking, or ozone-related deterioration, as eleven-year-old rubber can fail suddenly regardless of remaining depth. Brake components should be examined for disc corrosion around the outer edges and inner faces, particularly if it has spent time standing, and the calipers should be checked for any signs of seizing or binding pistons, which is a common issue on cars that have covered predominantly short or infrequent journeys. The 12V battery is now well into the latter stages of its expected service life, so its resting voltage and state of charge under load should be verified, and the auxiliary battery that supplies the COMAND and convenience systems on the CLS should also be tested, as failure of either can produce a cascade of electrical faults. Beyond these immediate checks, a thorough test drive should focus on listening for any clonks or knocks from the front suspension, particularly over speed humps and uneven surfaces, as worn control arm bushes, drop links, and top mounts can develop without necessarily producing an MOT failure until they reach an advanced stage. The gearbox, whether the 9G-Tronic automatic or a manual variant, should be observed for smooth, timely shifts and any hesitation or juddering, while the engine should be allowed to reach full operating temperature to check for any excessive smoke, coolant loss, or irregular idle. Brake fluid and coolant should both be considered due for renewal purely on a calendar basis, as Mercedes-Benz specifies extended intervals that often leave original fluid still in the vehicle at this age, and fresh high-quality brake fluid is essential for maintaining the performance of the CLS braking system. A full service history verification, including confirmation of recent oil and filter changes using the correct MB-approved specification, will round out the assessment and provide reassurance that this well-kept example has been maintained to an appropriate standard.