1998 Mazda MX-5 1.8L Petrol · S276 BSX

Structural corrosion and component wear define the current mechanical state of this vehicle, which returned to the testing cycle in May 2026 after a six-year absence. While the latest test resulted in a pass, it flagged significant underbody and suspension corrosion alongside pitted front brake discs. This follows a historical pattern of issues including brake pipe corrosion and oil leaks recorded in 2020, as well as a 2017 failure involving anti-roll bar linkages and exhaust emissions. The recorded mileage of 137,399 miles is low for a twenty-eight-year-old vehicle, averaging approximately 4,907 miles per year. However, the substantial gap in MOT history between 2020 and 2026 suggests a prolonged period of inactivity. Such long-term standing often exacerbates corrosion in chassis components and can lead to the degradation of rubber seals and braking surfaces, which aligns with the pitted discs and underbody rust noted in the most recent inspection. A physical inspection should prioritise the underbody and suspension mounting points to assess the extent of the recorded corrosion. During a test drive, listen for knocks or clunks over uneven surfaces, which could indicate a recurrence of the play previously found in the anti-roll bar linkages or steering rack inner joints. The braking system requires scrutiny; the presence of pitted front discs and previous advisories for corroded brake pipes suggest a need to check for pedal judder or a spongy feel, indicating potential surface degradation or internal corrosion. Attention should be paid to the engine bay and underside to identify any active oil leaks, as these were flagged as recurring issues in 2017 and 2020. The previous exhaust emissions failure related to Lambda readings suggests the fuel and air management system should be monitored for stability during idling and acceleration. Finally, the damaged offside front wing noted in 2020 should be inspected for any subsequent rust development where the metal was compromised.