2011 Toyota Yaris 1.3L Petrol · SW11 KWT

A clear pattern of corrosion-related advisories on the brake pipework defines the mechanical history of this 2011 Toyota Yaris, with every MOT since 2022 flagging progressively extensive degradation along the front and rear brake lines. The most recent test on 3 April 2025 passed, but the examiner recorded both front brake pipes as corroded and coated in material, continuing a trend first noted in March 2022 on the nearside front and offside rear pipes, then expanding in April 2024 to all four pipes running front to rear. While these remain advisories rather than failures, the steady widening of the affected areas over three consecutive tests indicates that the brake hydraulic system is approaching the point where pipe sections may fail MOT outright once corrosion perforates the metal, particularly given that this is a fifteen-year-old vehicle with high accumulated mileage. Against its age, the recorded mileage of 132,066 miles equates to roughly 8,800 miles per year, which is broadly typical for a vehicle of this vintage and suggests reasonably consistent use rather than long periods of standing or unusually heavy duty. The MOT history shows annual testing without significant gaps, consistent with continuous road use, and the mileage accumulation between tests appears steady rather than displaying any unusual spikes that might indicate tow-bar use, heavy load work, or odometer discrepancies. This regular usage pattern supports the likelihood that mechanical components have been exercised normally, though consumable wear items such as brake discs, pads, suspension bushes and exhaust components will be subject to typical high-mileage degradation for a car of this age. For a prospective buyer, the brake pipe corrosion is the single most pressing concern and warrants close physical inspection beneath the vehicle on a ramp or over a pit. Particular attention should be paid to the front to rear pipe runs along the chassis underside, looking for any flaking, pitting, or weeping of brake fluid around flared joints and mounting clips, as the recurring advisories suggest surface treatment or grease masking is no longer sufficient to arrest the underlying corrosion. The rear tyre perishing advisory from the 2022 test should also prompt a thorough inspection of both rear tyres for sidewall cracking, checking the DOT date stamps for age and confirming even tread wear across the axle, as uneven rear wear on a Yaris can indicate rear axle beam misalignment or worn suspension bushes. On a road test, listen for any metallic scraping or knocking from the brake calipers, particularly when coming to a stop from higher speeds, and feel for a soft or spongy brake pedal that could indicate fluid loss past a corroded pipe joint. Pay attention to suspension behaviour over uneven surfaces, noting any clonks or rattles from the front strut assemblies, which can wear prematurely on high-mileage Yaris models. Finally, check for any signs of pulling to one side under braking, as a corroded brake pipe restricting flow to one wheel circuit could manifest as uneven stopping performance before any warning light appears on the dashboard.