2012 Ford Fiesta 1.4L Diesel · BN12 AAO

Chronic front-end wear and a heavily corroded exhaust system dominate the mechanical story of this 2012 Ford Fiesta, with a clear pattern of repeat advisories concentrated on the nearside and offside front suspension, braking components, and rear exhaust silencer. The 2025-09-08 test was a pass, but it continued the trend of oil misting on the offside front shock absorber, a fault first flagged on the nearside front unit in 2024. Compounding this, the 2024 test recorded a worn offside front tyre on the legal limit, thinning front brake pads, slight play in the offside front lower suspension arm ball joint, and a heavily corroded rear exhaust silencer, while the 2023 and 2022 tests both noted nearside front tyre wear and progressive rear exhaust corrosion. The single failure in July 2022 was caused by a dangerous combination of front brake pads worn below 1.5 mm, a front brake disc seriously weakened by wear or corrosion, and an offside front tyre below the 1.6 mm tread minimum, all of which represent acute safety defects rather than marginal advisories. Taken together, the record suggests a vehicle with persistent consumable and corrosion issues that have not been fully resolved between tests, particularly around the front axle and rear exhaust. With 137,016 miles recorded across approximately 14 years, this Fiesta has averaged around 9,787 miles per year, which is broadly consistent with typical usage for a car of its age. There are no significant gaps in the annual MOT testing cycle, with tests recorded consecutively from 2022 through 2025, indicating the vehicle has been in regular use rather than laid up for extended periods. At this mileage level, wear rates on friction components, suspension bushes, exhaust mountings, and engine ancillaries tend to accelerate, particularly on a supermini that has likely seen a mix of urban stop-start driving and longer motorway runs. The combination of moderate-to-high annual mileage and a 14-year-old chassis means age-related deterioration of rubber, underbody protection, and structural seam sealant should be expected alongside the component-specific issues already flagged. For a prospective buyer, the front brake and suspension items recorded in 2022 and 2024 warrant particular attention during inspection and on a test drive. The dangerous brake disc and pad condition from 2022 should have been rectified at the time, but the 2024 advisory of front pads wearing thin suggests replacement parts may already be approaching the end of their service life, so check for pedal judder under firm pedal pressure, pulling to one side under heavy braking, and any grinding or squealing from the front calipers. The offside front lower suspension arm ball joint with slight play and the shock absorber oil misting recorded across consecutive tests point to worn front suspension geometry; on a test drive, listen for clonking or knocking noises from the front wheels over speed humps and uneven surfaces, and feel for vagueness or wandering in the steering, particularly over undulating roads. Inspect the lower suspension arms, anti-roll bar drop links, and track rod ends for perished bushings, torn gaiters, and any signs of seam corrosion on the front subframe, as the ball joint play noted in 2024 often progresses if the arm has not been replaced. The exhaust advisories deserve a physical inspection with the vehicle raised or on a ramp, as the 2024 record specifically described the rear silencer as heavily corroded and earlier tests noted the exhaust box corroded. Tap the rear silencer and intermediate pipe sections for scale rust and check for blowing joints, particularly where the rubber mounting hangers meet the metal, as a perished mount can cause the silencer to sag and contact the underbody. The repeated front tyre wear advisories, including the dangerous tread depth failure on the offside in 2022 and the worn edge noted in 2024, may indicate tracking misalignment, worn front springs, or perished suspension bushes allowing camber change under load, so verify even tyre wear across both front axle tyres on the car you view. Finally, request evidence that the front brake discs and pads have been replaced since the 2022 failure, and confirm the offside front lower suspension arm ball joint has been renewed rather than simply inspected, as a car with a clean test pass on paper can still carry latent wear on components that were merely advisory rather than failed at the most recent test.