2014 Toyota Yaris 1.3L Petrol · YF63 THU

Brake pipe corrosion is the defining mechanical theme in this Yaris's history, and it is the area a buyer should scrutinise first. The 2020 test flagged a slightly corroded offside front brake pipe alongside worn front discs and pads at 4mm, and by November 2021 that corrosion had escalated to an excessively corroded offside front brake pipe, causing a failure, with the offside rear pipe also corroded. The car passed a retest days later, indicating the pipes were addressed, and the record since has been largely clean: passes in 2022, 2023, 2024 and most recently on 25 November 2025 with no defects at all. The only blemishes in that later period are electrical rather than structural: a failed test in December 2024 for an inoperative nearside front side repeater and offside rear fog lamp, rectified the same day, plus a recurring advisory for the non-obligatory central rear stop lamp that has appeared across 2023 and 2024 without ever being resolved. Overall the trend is improving, with the corrosion issue apparently dealt with and the latest test entirely clear. At 57,637 miles over roughly twelve years, the car has averaged about 4,800 miles per year, which is low for its age. The annual test dates are consistent each November or December with no gaps, so there is no evidence of extended off-road periods, but the modest mileage is consistent with the pattern of wear seen: brake components corroding and tyres perishing with age rather than wearing out through use. The 2024 advisory noting all four tyres slightly damaged, cracking or perishing, with 2017 date codes recorded, is telling: those tyres were around seven years old at the time, and age-related degradation of rubber is a characteristic of lightly used vehicles. Low annual mileage means less wear on the drivetrain and suspension, but it does not exempt age-related deterioration of rubber, seals and exposed metalwork. On a test drive, the priority is the braking system given its documented history. Check beneath the car, ideally on a ramp, along the full length of both front and rear brake pipes for fresh corrosion, flaking or weeping at unions, particularly on the offside where both pipes were previously flagged; confirm any replacement pipework is neatly clipped and corrosion-protected. The pedal should feel firm and consistent with no judder through the pedal or steering under braking, which would point to disc wear or distortion, and the car should pull up straight without drifting, which could indicate a binding caliper. Given the 2020 advisories on front discs and pads, verify whether these have since been renewed and listen for any grinding or squeal. The tyres warrant close inspection: confirm whether the perished 2017-dated set noted in 2024 has been replaced, and if not, treat replacement as an immediate cost regardless of tread depth, since cracking sidewalls are a genuine safety risk. Electrically, verify the central high-level stop lamp now works, as it has been ignored across multiple tests, and check all indicators, repeaters and the rear fog lamp given the 2024 failure. Finally, with low-mileage examples of this age, a short test drive may mask issues, so drive long enough to fully warm the engine, listen for suspension knocks over uneven surfaces, and confirm the clutch bite and gearchange are smooth. The recent clean pass is encouraging, but the earlier corrosion history justifies a careful underside inspection before purchase.