1993 Mazda MX-5 1.6L Petrol · K74 EJH

The most recent MOT, carried out on 2 February 2026, resulted in a failure. The test recorded three major defects – severe corrosion of the off‑side front, off‑side rear and near‑side rear integral body structures, which compromises the chassis rigidity – and two dangerous defects – front tyre tread depths below the legal 1.6 mm limit. Earlier tests show a pattern of increasing corrosion (notably brake pipe and sill panel rust from 2018 onward) and recurring tyre wear advisories, with occasional minor electrical faults. While the vehicle passed in 2022, the overall maintenance trajectory is clearly deteriorating, especially in terms of structural rust and tyre condition. At 242 422 miles the MX‑5 has averaged roughly 7 300 miles per year over its 33‑year life, a usage rate that is neither unusually low nor excessive for a sports‑car of this age. The mileage suggests the car has seen regular driving rather than long periods of storage, which means wear items such as suspension bushes, engine mounts, clutch and timing belt have likely been exercised extensively. However, the high cumulative mileage combined with the documented corrosion indicates that many components may be approaching the end of their service lives and could be prone to sudden failure if not inspected and refreshed. A prospective buyer should give the structural rust the highest priority. Inspect the inner sills, floor pan and under‑body for flaking, pitting or holes, and probe the affected areas for any flex or audible creaking when the chassis is rocked. Verify that any previous repairs were performed with proper welding and that there is no residual weakness. Examine the front and rear brake pipes for heavy corrosion, leaks or excessive grease buildup, and check that the braking system feels firm with no sponginess or pulsation. The front tyres will need immediate replacement; while on a test drive listen for uneven shuddering or vibration that could indicate damaged sidewalls or worn tread. Also confirm that the near‑side parking brake engages correctly and that all exterior lighting, particularly the front position lamp, functions properly. Given the car’s age, a thorough visual and tactile inspection of the suspension is essential – look for cracked or collapsed rubber bushings, worn coil‑spring mounts and any play in the wishbones or steering rack. Check the condition of the battery, paying attention to swollen cases or low cranking voltage, and consider a load test. Verify that the coolant, brake fluid and engine oil have been changed in line with calendar intervals; old fluids can become acidic and accelerate corrosion. Finally, request service records for timing‑belt changes – the NB‑generation MX‑5 normally requires replacement at around 100 000 miles, so multiple changes should be documented. Any signs of oil seepage around the valve cover or oil pan, or of exhaust leaks, should be investigated before committing to purchase.