2005 Mercedes-Benz SLK 1.8L Petrol · CE05 HAX

The most recent MOT test on August 13, 2025, confirms the 2005 Mercedes-Benz SLK remains roadworthy with no defects recorded at 142,665 miles. The consistent pass history over the past three tests—including the 2024 and 2023 examinations—indicates a stable maintenance trend without recurring mechanical failures. The sole failure in March 2023 (130,348 miles) stands out as an anomaly, as no defects were logged, suggesting either a minor administrative oversight or a test centre procedural issue rather than a recurring mechanical problem. The vehicle’s compliance with emissions and structural checks across all tests reinforces that major components like suspension bushes, coil springs, and binding calipers have not been flagged as problematic. The recorded mileage progression of approximately 6,794 miles annually aligns with typical usage for a vehicle of this age, with no abrupt spikes or prolonged periods of inactivity. The gap between the 2023 failure and the subsequent 2023 pass (just 21 days and 17 miles) is unusual but not inherently concerning given the lack of defects. The steady accumulation of mileage between tests—around 6,800 miles per year—implies consistent use without extreme wear patterns. However, the absence of pre-MOT servicing records means the buyer should verify whether critical intervals for fluid changes (coolant, brake fluid, differential oil) and timing belt inspections have been adhered to. Given the clean MOT history, the primary focus for an in-person inspection should centre on high-wear components typical for this model and mileage. The suspension—particularly rear struts and control arms—should be examined for excessive play or corrosion, as older Mercedes SLKs are prone to bush deterioration. Brake discs and calipers warrant close scrutiny, especially if the vehicle exhibits uneven wear or binding, though the MOT record does not indicate past brake-related failures. Structural integrity is another critical area; inspect the underbody for corrosion around the sills, subframe, and exhaust system, as rust can compromise load-bearing elements. The engine bay should be checked for fluid leaks, particularly around the timing belt cover and oil filter housing, given the vehicle’s age and the lack of documented servicing. Finally, the electrical system—including lights, sensors, and the central locking—should be tested, as older Mercedes models occasionally develop intermittent faults.