2004 Mazda MX5 1.8L Petrol · MX54 AUS

The vehicle currently presents a concerning roadworthiness profile with a clear trend of worsening mechanical and structural degradation. While it passed its most recent test in April 2026 at 88,235 miles, this result followed a significant failure just one month prior. The transition from a clean record in early 2025 to a list of critical defects in 2026 indicates that the vehicle is entering a period of rapid component failure. The recurring appearance of exhaust issues and suspension wear suggests a reactive rather than preventative maintenance strategy. At 22 years old, the recorded mileage of 88,235 miles is notably low, averaging approximately 4,000 miles per year. However, the data shows a recent burst of activity, with over 4,600 miles covered between March 2025 and April 2026. This sudden increase in use after periods of lower mileage often accelerates the deterioration of rubber components and aged seals. The low annual mileage does not protect this vehicle from the age-related corrosion that is heavily documented across the latest MOT tests. A buyer must prioritize a thorough inspection of the structural integrity of the chassis. The record consistently flags heavy corrosion on the underside, previous welding work, and thinning of both the front and rear sub-frames. These are critical areas for a Mazda MX5 where rust can lead to structural failure. With the sills and inner wheel arches also noted as corroded, the risk of significant metalwork repair is high. The tester should distinguish between surface rust and structural damage. Mechanical attention is also required for the suspension and braking systems. The April 2026 test identified pitted front brake discs, worn shock absorber bushes, and deteriorated ball joint dust covers on the front suspension. The history of major exhaust leaks and lambda sensor failures suggests the emissions system and engine management are nearing failure. Given the missing coil spring noted in the March 2026 failure, the entire suspension geometry should be verified for play and uneven wear to ensure the previous repairs were addressed comprehensively.