2006 Mazda MX-5 2.0L Petrol · SW55 GDY

The most recent MOT, carried out on 20 March 2026, was passed but noted an advisory that the underside of the car is heavily under‑sealed. Prior to that the vehicle passed three consecutive annual tests with no recorded defects, the only blemish being a dangerous failure for nearside rear brake pads being below the minimum thickness at the March 2023 test. The pattern shows that after the 2023 brake‑pad issue the owner appears to have addressed the fault, as subsequent tests have been clean, indicating a generally stable maintenance trajectory with the current advisory being the sole outstanding concern. With a recorded 59,290 miles on a 2006 MX‑5 the average annual mileage works out to just under 3,000 miles per year, which is considerably below the typical usage for a sports‑car of this age. Such low utilisation often points to periods of limited running or prolonged storage, which can be as detrimental as high mileage because components age regardless of distance. The modest wear on consumables is beneficial, yet the vehicle may have suffered from moisture ingress, rubber hardening and corrosion during any idle periods, especially to the under‑body, suspension joints and brake hardware. The brake‑pad failure recorded in 2023 suggests that the rear braking system should be inspected thoroughly. Verify the current pad thickness on both sides, examine the rear discs for scoring or rust‑pitting, and check that the caliper pistons move freely without binding. On a test drive listen for any pulsing, squeal or uneven braking feel, particularly when applying the rear brake, as these can indicate worn pads, warped discs or sticking calipers that may soon require replacement. The advisory about the heavily under‑sealed underside warrants a visual inspection of the chassis, exhaust hangers, suspension mounts and fuel tank for any signs of corrosion, rust‑through or cracked sealant, and a check that the protective under‑coating is intact. Given the car’s age and low mileage, the buyer should also focus on age‑related items that are not mileage‑dependent. Inspect the tyre sidewalls for cracking, dry rot or age‑related brittleness, and confirm the DOT date is within the ten‑year limit; tyres older than six years may need replacement even if tread depth is acceptable. Test the 12‑volt battery for charge holding and electrolyte condition, as prolonged storage can lead to sulfation. Examine all fluid reservoirs – engine oil, coolant, brake fluid and power‑steering fluid – for correct levels, colour and any signs of contamination, and consider a full fluid change if service records are absent. Finally, check the condition of rubber hoses, drive‑belt, suspension bushes, and steering rack boots for cracks or leaks, and listen for any clunks or excessive play during cornering, as these are common wear points on a vehicle that has spent many years idle between relatively short trips.