2007 Mazda MX-5 2.0L Petrol · KJ07 AAN

Persistent underside corrosion and a history of hydraulic failure define the mechanical record of this vehicle. While the test on 25 June 2024 resulted in a pass, the DVSA records show a recurring pattern of subframe corrosion dating back to 2022, alongside a failure in January 2022 due to leaking front hydraulic brake calipers on both the nearside and offside. The trend indicates that while the vehicle remains roadworthy, there is ongoing structural oxidation that has been noted across multiple consecutive inspections. An average annual distance of approximately 3,526 miles over 19 years represents a low usage profile for a vehicle of this age. Such a pattern often results in different wear characteristics than high-mileage examples, where the primary risks shift from mechanical drivetrain fatigue to the degradation of stationary components and the onset of corrosion. The low mileage correlates with the recorded surface corrosion on the subframes, as vehicles that spend extended periods stationary in damp environments are often more susceptible to underside oxidation. A physical inspection should prioritise the structural integrity of the front and rear subframes to determine if the recorded corrosion has progressed beyond surface oxidation. Use a torch to inspect the chassis rails and subframe mounting points for any signs of deep pitting or structural thinning. Given the previous failure for leaking brake calipers, the brake pedal should be monitored for any sponginess or gradual sinking during a stationary hold, and the inner wheel arches should be checked for any signs of fresh hydraulic fluid residue. During the test drive, pay close attention to the braking performance and steering stability. Any judder under braking or uneven pulling may indicate issues with the previously flagged caliper system. Additionally, the offside rear tyre was noted as being worn close to the legal limit in June 2024; verify the current tread depth and check for uneven wear on the edges, which could suggest misalignment or worn suspension bushes. Listen for any knocks or rattles over uneven surfaces that might indicate the corrosion has affected the condition of the chassis mounts.