2005 Mercedes-Benz SL 3.7L Petrol · AA55 ARM

A recurring pattern of oil leakage and lighting defects defines the mechanical profile of this vehicle, with the most recent MOT pass on 18 November 2025 confirming these ongoing issues. While the vehicle has successfully passed its last three annual inspections, the continuity of the advisory regarding a non-excessive oil leak since at least 2023 indicates a persistent seepage that has not been rectified. Additionally, the repeated minor defects concerning the offside headlamp lens and mirror damage suggest a history of minor external or peripheral component degradation that persists through successive testing cycles. The recorded mileage of 120,012 miles over a 21-year period represents an average annual accumulation of approximately 5,715 miles. This is a relatively low rate of use for a vehicle of this age, which can imply less frequent mechanical exercise. While lower mileage often correlates with less wear on high-friction components, the MOT history shows evidence of age-related deterioration that is independent of distance, such as the perishing of tyres and the corrosion of coil springs noted in previous years. The usage pattern suggests the vehicle may spend significant periods stationary, which can contribute to the rubber degradation and component fatigue observed in the records. Prospective buyers should pay close attention to the persistent oil leak mentioned in the 2023, 2024, and 2025 records. During a test drive, it is necessary to observe the engine bay for active dripping and check for any significant accumulation of oil on the underside of the engine or exhaust components, which could lead to smoke or odour in the cabin. Furthermore, given the 2022 failure involving a fractured nearside front coil spring and the 2021 advisory regarding worn shock absorber bushes and corroded rear springs, the suspension integrity requires scrutiny. Listen for any clunking, knocking, or heavy thudding sounds when driving over uneven surfaces or speed bumps, as these symptoms often indicate worn bushes or compromised spring tension. Attention must also be directed toward the braking and tyre history. The 2023 failure due to an ABS warning lamp and the 2022 advisory regarding a deteriorated nearside rear brake hose necessitate a thorough inspection of the braking system. On the road, check for any pulsing or judder through the brake pedal, or any uneven pulling to one side during deceleration. While the 2023 advisory for a worn nearside rear tyre was subsequently cleared, the history of tyre damage and cuts suggests that the condition of all four tyres should be inspected for sidewall cracking or uneven tread wear, which can result from both age and alignment issues.