2015 Ford Fiesta 1.0L Petrol · MM65 LSX

The most recent MOT, carried out on 17 September 2025, resulted in a dangerous failure for a near‑side front tyre that exhibits a bulge in the sidewall, indicating structural separation. The preceding test on 8 September 2025 also recorded a major failure of the exhaust lambda sensor reading and advisories concerning rear tyre cracking. Earlier examinations in 2024 and before were passed, with only tyre‑perishing advisories noted in 2024. This pattern shows a clear deterioration in the tyre condition and a new emissions‑related fault, suggesting the vehicle’s maintenance trajectory is now worsening after a period of relative stability. With a recorded 26 181 miles on a 2015 model, the car averages roughly 2 380 miles per annum, which is markedly below the typical UK usage of 7‑10 000 miles per year. Such low mileage often points to prolonged periods of inactivity or limited use, which can be as detrimental as high mileage in terms of component ageing. Components such as rubber, seals and batteries degrade with time regardless of distance, and the lack of regular thermal cycling may have contributed to the tyre sidewall failure and the perishing of the rear tyres. The low annual mileage also means that wear‑items like clutch discs, CV joints and engine bearings are likely to be in good condition, but the vehicle may have suffered from moisture ingress or corrosion due to standing. Prospective buyers should give the tyre set the utmost scrutiny. The near‑side front tyre with a bulge must be replaced immediately; a sidewall defect cannot be repaired and poses a serious safety risk, especially at highway speeds. Inspect the remaining three tyres for age (date of manufacture on the sidewall), cracking, dry rot or uneven wear that could indicate mis‑alignment or worn suspension bushes. During a test drive, listen for thumping or vibration that may emanate from a compromised tyre, and feel for any pull to one side that could reveal alignment or steering‑rack issues. The exhaust lambda sensor failure recorded in September 2025 suggests a possible fault with the oxygen sensor, catalytic converter efficiency or related wiring; watch for a noticeable loss of power, rough idle, or an illuminated “Check Engine” light, and consider a post‑sale diagnostic scan to confirm the sensor’s condition and any required remedial work. Given the vehicle’s age and low utilisation, a comprehensive visual inspection of the under‑body for corrosion, especially around wheel arches, suspension mounting points and the exhaust system, is advisable. Verify the condition of the 12‑volt lead‑acid battery; a battery that has sat for long periods may have reduced cranking power and could fail shortly after purchase. Examine brake discs and pads for surface rust, glazing or uneven wear, and test for any pulsation or shudder under braking which can indicate disc corrosion or sticking calipers. Finally, confirm that the service book shows timely oil, coolant and brake‑fluid changes – fluids degrade over time even if mileage is low – and arrange for a full fluid flush if the last service dates back several years.