2004 Mercedes-Benz CL 5.4L Petrol · RX54 AEM

The most recent DVSA examination on 9 March 2026 resulted in a pass with no advisories or defects recorded, which is the cleanest outcome in the available five-year test history. The 2025 and 2024 tests were similarly clean passes, suggesting that the vehicle has maintained a stable roadworthy condition over recent years. The 2023 and 2022 tests passed but carried advisories relating to front inner tyre wear and, in 2022, a corroded rear brake pipe. The absence of any repeat advisories on the brake pipe in subsequent tests indicates either remedial attention or that the corrosion has not progressed to failure point, while the tyres appear to have been renewed since the 2023 advisory, as no further tyre-related items have been recorded. Overall, the maintenance trend appears stable and well-managed, with no escalating defects or structural concerns evident from the MOT record. With 94,053 miles recorded over approximately 22 years, this Mercedes averages around 4,275 miles per year, which is notably low for a vehicle of this age and substantially below the typical annual mileage for a luxury coupe. Such low usage typically reflects either a second vehicle, a weekend or leisure car, or extended periods of standing. While low mileage reduces wear on major drivetrain components such as the engine, gearbox and final drive, it increases the likelihood of age-related deterioration in items that degrade with calendar time rather than use. The buyer should therefore interpret the modest odometer reading with caution and prioritise inspection of time-serviced components. Given the vehicle's age and the front inner tyre wear advisories recorded on two consecutive tests in 2022 and 2023, particular attention should be paid to the front suspension geometry and steering linkages. Inner-edge tyre wear on both sides simultaneously is commonly indicative of incorrect tracking, worn suspension bushes, or deteriorated coil springs leading to a lowered or tilted ride height. On a test drive, listen for any knocking or clonking from the front suspension over uneven surfaces, and observe whether the vehicle pulls to one side or exhibits imprecise steering response. The 2022 advisory regarding a corroded rear brake pipe is also relevant; although only an advisory at that time, brake pipe corrosion can progress and may ultimately lead to a test failure. Physically inspect the underside for any surface rust or weeping from brake lines, and check that the brake pedal feels firm with no sponginess, as this may indicate fluid degradation or air ingress. With a vehicle of this vintage standing for prolonged periods, binding brake calipers and corroded brake discs are common, so verify that the vehicle rolls freely when released and that braking is straight and progressive without shudder under heavy application. Beyond the recorded advisories, the age and low-use profile of this 22-year-old Mercedes warrants thorough checks of several time-sensitive items. Tyre sidewalls should be examined closely for perishing or cracking, as aged tyres can fail despite having adequate tread depth. The 12V battery is likely original or long-standing and should be load tested, particularly given the electrical complexity typical of this model. Engine oil, coolant, brake fluid, power steering fluid and transmission fluid should all be verified for condition and service history, as brake fluid is hygroscopic and degrades regardless of mileage, ideally requiring replacement every two years. Cold starts should be observed for excessive smoke, irregular idling, or warning lights on the instrument cluster. With the ignition off, inspect for fluid leaks beneath the engine bay and beneath the vehicle, paying attention to the areas around the front subframe, rear differential, and suspension components for any signs of standing corrosion or weeping seals. A compression test or diagnostic scan would be prudent given the engine's age, and verifying the completeness of the service book stamps and any accompanying specialist invoices will help establish the true mechanical history of this low-mileage example.