2006 Mazda MX-5 2.0L Petrol · MY55 ADE

The most recent MOT on 17 May 2024 was a pass, albeit with an advisory noting a minor leak at the centre pipe to the back‑box of the rear exhaust. Over the past six years the record shows a mixture of major failures – notably the rear anti‑roll‑bar dust‑cover defects and excessive corrosion of the rear suspension mounting in April 2023, and a front service‑brake fluctuation together with a non‑functioning electronic‑stability‑control switch in January 2021 – followed by passes that only carry advisories. The pattern suggests that the vehicle has had periods where significant remedial work was required, but the most recent pass indicates those critical items have been addressed, leaving a residual list of age‑related advisories rather than recurring failures. At 149 396 mi the car averages roughly 7 500 mi per year, which is typical for a 2006 MX‑5 and points to a moderate usage profile rather than either extreme high‑mileage abuse or prolonged inactivity. There are no obvious mileage spikes that would imply a period of intensive short‑term use, but the presence of multiple corrosion‑related advisories hints that the vehicle may have spent considerable time standing, especially given the “heavily under‑sealed” comment in 2022. Moderate annual mileage combined with occasional standing can accelerate wear on suspension bushings, brake components and under‑body protection, so the mileage itself is not alarming but must be interpreted alongside the corrosion history. A prospective buyer should give particular attention to the rear anti‑roll‑bar linkage and its dust‑covers; any looseness or clunking when cornering or over bumps can indicate that the protective covers have not been fully restored and dirt ingress may now be affecting the bushings. The rear suspension mounting areas, flagged for excessive corrosion, should be inspected for any pitting or loss of metal thickness that could compromise structural integrity – look for creaking noises when applying rear‑wheel torque or during sudden direction changes. The front service‑brake system, previously noted for excessive fluctuation, warrants a thorough check of the master cylinder, brake fluid condition and pedal feel; a spongy or variable pedal under load may betray lingering hydraulic issues. The exhaust leak, though minor, should be verified for any audible hissing or visible soot at the joint, as a deteriorating gasket can lead to increased emissions and possible carbon monoxide ingress. Finally, confirm that the electronic‑stability‑control switch now operates correctly, as a fault here can disable traction‑control functions that are valuable in wet British conditions. Beyond the specific MOT items, the age of the MX‑5 dictates a comprehensive visual and tactile inspection. Examine all tyre sidewalls for cracking, dry‑rot or loss of tread even if the tread depth appears acceptable, since tyres over a decade old can fail suddenly. Check the 12 V battery for sulphation and verify that it holds charge under load; a battery older than five years often needs replacement. Inspect the brake discs for surface rust, scoring or uneven wear, especially the rear discs previously described as warped, and listen for any shudder or pulsation when braking. Verify that the under‑body panels and sills are free of active corrosion, with particular focus on the front and rear sub‑frames where surface rust was repeatedly noted; any rust that has penetrated the metal could lead to future structural weakening. Finally, ensure that all fluid reservoirs – engine oil, coolant, brake fluid and power‑steering fluid – have been serviced within the manufacturer’s time‑based intervals, as fluids degrade with age even when mileage is modest. Addressing these points will give a clear picture of the car’s current roadworthiness and the likely maintenance budget required.