1999 Toyota Yaris 1.0L Petrol · V336 ANH

This Yaris presents a steadily worsening corrosion profile that has escalated from general advisories in 2023 to a structural failure within the space of two years, and that pattern must be the starting point for any buyer evaluation. At the most recent test on 15 December 2025 the vehicle passed, but only after a failed entry five days earlier where a nearside rear outer suspension arm attachment bracket was recorded as seriously weakened and corroded at the sill. That single major failure, combined with the underside corrosion advisory carried over from 2024, the heavily corroded fuel filler pipes flagged at dangerous advisory level, and the corroded front Macpherson struts now appearing on both sides, points to a vehicle where the corrosion is systemic rather than localised. The trend across the four recorded tests is clearly downward, with the underside, fuel system, rear suspension, and front struts all entering the advisory record within a short window and at least one component already crossing into serious defect territory. The recorded mileage of 139,138 miles against a 27-year age equates to roughly 5,150 miles per year, which is genuinely low for a vehicle of this vintage and means the car has likely spent significant portions of its life either garaged or simply unused. Such low annual accumulation reduces wear on high-mileage consumables such as the engine, clutch, gearbox internals, and bulk brake friction material, but it does nothing to slow structural corrosion and in some cases accelerates it, as prolonged periods of dampness combined with limited use allow moisture to sit on unprotected metal. The relatively even spacing of tests between 2023 and 2025 suggests the car has been in regular but light use rather than laid up for extended periods, which makes the progression of corrosion all the more telling about the underlying condition of the shell. Any prospective test drive should be approached with the known structural weaknesses in mind, particularly the rear suspension area where the bracket failure occurred. Listen carefully for clonks, rattles, or shifting noises from the rear over uneven surfaces and speed humps, as a weakened mounting can allow the arm to move excessively under load. With the Macpherson strut tops flagged on both sides, pay close attention to any knocking or creaking through the front suspension on turn-in and over bumps, and check for uneven tyre wear across the front axle which often accompanies strut deterioration. Inspect the sills, jacking points, rear wheel arches, and the fuel filler pipe area visually for bubbling paint, surface scaling, and perforation, particularly around the rear suspension mount where the recent major failure was recorded. Under the bonnet and beneath the vehicle, the buyer should satisfy themselves that the fuel filler pipe advisory has been properly resolved with a replacement rather than a temporary repair, and confirm there are no smells of petrol or signs of weeping around the filler neck. The front brake discs were noted as pitted and scored in 2024, so test for brake judder under firm pedal pressure and any pulsing through the steering wheel, which would indicate disc run-out beyond serviceable limits. The exhaust mounting defect should be checked by hand for play in the system, and with the underside of the vehicle flagged for general corrosion it is worth arranging a borescope inspection or ramp examination to confirm the subframe, floor pan, and brake and fuel lines are not approaching the point of failure. Given the trajectory of the MOT record, budgeting for further structural rectification rather than routine servicing would be a prudent approach.