2019 Mercedes-Benz CLS 2.9L Diesel · H1 PSS

The mechanical story of this 2019 Mercedes-Benz CLS is one of consistently clean roadworthiness, with a clean pass recorded at the most recent test on 1 July 2025 following a very brief earlier advisory four days prior on 27 June 2025. Across five recorded DVSA tests spanning 2022 through 2025, the vehicle has demonstrated stable compliance with MOT standards, accumulating no advisories or defect entries of any kind. The four-day gap between the failed test and the subsequent pass suggests a minor, easily rectified issue rather than any underlying systemic fault, and the absence of any recorded advisories across the entire history points to a vehicle that has not yet entered the phase of component wear typically seen on CLS models of this age. The overall trend is unambiguously positive, with no evidence of recurring failure points or developing mechanical concerns. Against an expected annual mileage of roughly 7,500 to 10,000 miles for a vehicle of this type and age, the recorded 38,929 miles over approximately seven years equates to an annual accumulation of around 5,500 miles, which is notably low. There are no significant gaps in the MOT testing record, indicating the vehicle has remained in regular use throughout its life rather than being laid up for extended periods, which is reassuring from the perspective of avoiding issues such as seized brake calipers, dried rubber seals, or perished coolant hoses that can develop during long stationary periods. However, the lower-than-average mileage does mean that consumable wear items such as brake discs, tyres, and suspension bushes may still retain substantial useful life, but equally the vehicle may have spent considerable time undertaking only short journeys, which can promote condensation in the engine oil and accelerated corrosion of underbody components. For a prospective buyer, the absence of any advisories on the MOT history means there are no specific flagged components demanding immediate scrutiny, but the test drive should still focus on the areas commonly affected on CLS models of this generation. Pay particular attention to the AIRMATIC air suspension if fitted, listening for any unusual noises from the compressor on cold start, observing whether the vehicle settles to ride height promptly after ignition, and checking for any warning messages on the instrument cluster. During the drive, evaluate the steering for any vagueness, knocking over uneven surfaces, or pull to one side under braking, which could indicate worn control arm bushings or tie rod wear despite the clean MOT record. The brake pedal should feel firm and progressive without any judder under heavy application, and the transmission should deliver smooth, decisive shifts without hesitation or flare. Given the relatively low recorded mileage and the absence of any underbody corrosion advisories, it remains prudent to inspect the vehicle on a ramp or with an underbody examination to verify the condition of the brake lines, fuel lines, and subframe mounting points, as these are areas where Mercedes-Benz vehicles can develop early surface corrosion independent of MOT-recorded defects. Inspect the tyres closely for even wear across the tread, as uneven shoulder wear could point to suspension component fatigue not yet severe enough to trigger an MOT failure. Finally, confirm that all scheduled servicing has been carried out at the correct intervals according to the Mercedes-Benz ASSYST PLUS system, as the relatively low annual mileage could result in extended oil change intervals that may not align with manufacturer recommendations for short-cycle urban driving.