2018 Ford Fiesta 1.0L Petrol · AX18 BYG

A pattern of brake and tyre wear advisories dominates the recent MOT history of this 2018 Ford Fiesta, suggesting that consumable items on the rear axle are nearing the end of their effective service life despite the car's low accumulated mileage. The most recent test on 21 May 2026 was initially failed due to an inoperative engine management indicator lamp, a Powertrain Range System (PRS) defect under section 8.2.1.2(h), before being recorded as a pass on the same date once that issue was rectified. That same test also flagged the nearside rear tyre as being worn close to the legal limit on the edge, the offside rear tyre as slightly damaged with cracking or perishing, the offside rear brake pads as wearing thin, and the offside rear brake disc as worn, pitted or scored. The earlier test cycle in 2025 carried forward the same tyre perishing advisories on both rear tyres and additionally noted front brake pads wearing thin. Two clean passes in 2023 and 2024 interrupted this pattern, but the broader trajectory points to rear brake and rear tyre deterioration that has progressively worsened over the last two test cycles rather than improving. With a recorded mileage of 22,332 miles spread across roughly eight years, this Fiesta has averaged only about 2,792 miles annually, which is well below the typical usage rate for a vehicle of this age. There are no significant gaps in the annual MOT testing cadence between 2021 and 2026, so the car has clearly remained in active road use rather than being laid up for extended periods. Low annual mileage of this nature reduces wear on high-mileage components such as the clutch, gearbox and engine internals, but it can simultaneously accelerate certain localised issues, particularly corrosion on brake discs from infrequent use, sidewall perishing on tyres through age rather than tread wear, and deterioration of rubber components that degrade with calendar time irrespective of distance covered. The rear tyre cracking advisories recorded across two consecutive years are consistent with this age-related rather than mileage-related deterioration. For a prospective buyer, the immediate priority is a physical inspection of the rear brake system, since the offside rear pads were flagged as thin and the offside rear disc was recorded as pitted and scored. A test drive should include several firm pedal applications from moderate speed to check for any judder, vibration through the pedal, or pulling to one side, all of which could indicate that the pitted disc has now reached a serviceable limit or that the caliper slider mechanism is binding. The nearside rear tyre should be examined closely for uneven shoulder wear, as the advisory specifically noted wear on the edge, which can point to a tracking issue, a worn rear beam bush, or a failing suspension component. It is also worth inspecting all four tyres for sidewall cracking, because perishing was noted on both rear tyres in 2025 and again on the offside rear in 2026, and aged rubber on a low-mileage car can deteriorate faster than the tread wears down. The engine management lamp failure that caused the most recent test to initially fail warrants separate investigation, because an illuminated malfunction indicator lamp (MIL) under section 8.2.1.2(h) can indicate a wide range of issues from a loose fuel cap or recent battery disconnection through to more serious faults with the lambda sensor, catalytic converter efficiency, ignition system, or engine control unit. Prospective buyers should ask for documentation showing what diagnostic work was carried out and what fault codes were retrieved and cleared to obtain the pass, and ideally have the system rescanned independently before purchase. On the road, the engine should be monitored for any hesitation, rough idle, unexpected loss of power, or re-illumination of the warning lamp, as the underlying fault may recur. Finally, although the front brake fluctuation advisories from 2021 and 2022 have not been repeated since, it remains sensible to check for a pulsing sensation through the brake pedal under light to moderate pressure, which would suggest residual disc run-out or uneven pad transfer on the offside front corner.