2018 Mercedes-Benz CLS 2.9L Diesel · YR18 MMF

The Mercedes-Benz CLS in question demonstrates a consistently stable roadworthiness profile, with every MOT test since 2022 passing without any recorded defects or advisories. The most recent test on 2026-02-21, just six months ago, confirms the vehicle remains within legal limits for emissions, brakes, suspension, and structural integrity. This clean history suggests the car has been maintained according to DVSA standards, though it does not preclude underlying issues not visible during a basic MOT—such as internal suspension wear or subtle corrosion—without a thorough mechanical inspection. The recorded mileage of 72,933 miles over eight years equates to approximately 9,117 miles annually, a rate typical for a vehicle of this age. There are no significant gaps or abrupt spikes in mileage between tests, indicating consistent usage rather than prolonged neglect or extended periods of disuse. The regular three-year MOT cycle has been strictly adhered to, which is commendable for tracking wear patterns. However, the lack of advisories or defects does not account for the cumulative effects of age—particularly in high-stress components like turbochargers, transmission fluid condition, or differential seals—where failures often occur beyond MOT thresholds. Given this history, a prospective buyer should prioritise an independent inspection of the suspension system, focusing on the condition of rear coil springs, bushes, and shock absorbers, as these are common wear items in Mercedes-Benz models. The brakes, while not flagged in MOTs, should be assessed for uneven pad thickness or binding calipers, especially if the vehicle exhibits pull or reduced stopping power. Corrosion checks are also critical, particularly around wheel arches, subframes, and exhaust mounts, where salt ingress over time can compromise structural integrity. The turbocharged engine’s intercooler and intake manifold should be examined for leaks or carbon buildup, as these are frequent failure points in this model. Finally, the transmission fluid should be sampled for metallic debris or excessive sludge, as automatic transmissions in this class are prone to internal wear after prolonged use.