2018 Ford Fiesta 1.0L Petrol · MF18 LSV

A clear mechanical theme emerges from the MOT history of this 2018 Ford Fiesta: an exhaust emissions issue that produced a failure on 24 March 2024, followed by a clean test on 2026-03-31 with no advisories recorded. The failure itself involved a Major defect for an exhaust lambda reading outside specified limits after the second fast idle, compounded by a second Major noting that emissions were likely affected by an exhaust leak. These are linked conditions, and the pairing suggests that the lambda sensor reading was influenced by compromised exhaust integrity ahead of it, meaning a leak upstream of the sensor was allowing unmetered air into the gas stream. The subsequent return to a clean pass on 31 March 2026 with no recorded advisories indicates the repair was carried out and the emissions system has held since, which is reassuring, but any prospective buyer should still satisfy themselves that the repair was thorough rather than a temporary fix. Annual mileage sits at roughly 6,800 miles, which is consistent with typical usage for a vehicle of this age and points to a car that has been driven regularly rather than left standing for prolonged periods. There are no unusual gaps in the testing record and no abrupt mileage jumps between tests, which suggests steady, ordinary use. At 54,374 miles the vehicle is well into the mid-life phase for its major drivetrain components, and although no mechanical failures have been recorded, consumable wear on brake discs and pads, clutch, and suspension components is to be expected at this accumulation level. The relatively modest annual mileage means corrosion is unlikely to have been accelerated by winter road salt exposure compared with a high-mileage car, which works in the Fiesta's favour. With regard to the advisories on record, the most significant is the play noted in the offside front steering rack inner joint on 2025-04-03. Steering rack inner joints on the Fiesta are known to wear before the outer tie rod ends, and play in this area typically manifests as a slight knocking through the steering wheel over uneven surfaces, a vague or imprecise feeling around the straight-ahead position, or a faint clunk when turning from lock to lock at low speed. The 2025 advisory was not severe enough to fail the test, but it is a component that tends to deteriorate progressively, so it warrants close attention. Also flagged at the same test was slight damage and perishing on the offside front tyre, which suggests the tyre was at or near the end of its useful life and may now need replacement. The recurring theme of nails in tyres across 2023 and 2024 is worth mentioning only because it speaks to ordinary road conditions and is not a structural or mechanical concern. On a test drive, focus your attention on the components flagged in the record. Listen for any exhaust hiss or ticking from beneath the car on cold start, particularly from the manifold to downpipe joint and the lambda sensor wiring area, as exhaust leaks can recur once repaired joints age. With the engine warm, check for any hesitation, rough idle, or illuminated emissions or engine management light, which would suggest the lambda sensor or catalytic converter is again drifting out of specification. For the steering, drive at low speed over broken tarmac and feel for any knocking or slack in the front end, and perform full lock turns in both directions to expose any further deterioration in the rack inner joint. Inspect the offside front tyre sidewall for cracking and confirm the nearside tyres are free of damage, then examine the underside for any oil weepage from the sump or differential area, brake disc condition through the wheels, and any developing corrosion on suspension arms and subframe mounting points, all of which become more relevant as mileage accumulates.