2004 Toyota Yaris 1.3L Petrol · DF04 TKA

The most recent MOT test on 2025-01-30 resulted in a passing grade, though it followed a pattern of repeated failures in 2024 and 2025, particularly around the engine malfunction indicator light (MIL) and windscreen washer functionality. While the latest test shows no major failures, the persistent advisory items—particularly the worn anti-roll bar and suspension arm bushes, corroded coil springs, and oil leaks—suggest a pattern of gradual mechanical degradation rather than a sudden deterioration. The vehicle’s history indicates that while some issues have been addressed, others remain unresolved, reflecting a maintenance trend that leans towards wear-related advisories rather than critical failures. The engine MIL failures in previous years point to a potential underlying electrical or sensor issue that should be thoroughly investigated, as repeated MIL activations can indicate persistent faults that may worsen over time. The recorded mileage of 58,363 miles for a vehicle aged approximately 22 years represents a remarkably low annual usage rate of around 2,653 miles per year, which is unusually low for its age. Such low mileage often correlates with prolonged periods of stationary use, particularly if the vehicle has been kept in a garage or stored for extended periods. This can lead to specific wear patterns, including corrosion from moisture exposure, particularly in suspension components like coil springs and bushes, which are frequently noted in the MOT history. Additionally, standing vehicles can develop brake binding from rust, and the 12V battery may suffer from discharge if not regularly topped up. The low mileage also means consumables like oil and brake fluid may be older, potentially degraded by prolonged service intervals, which could affect performance and safety. For a prospective buyer, the most critical areas to inspect are the suspension and braking systems, given the recurring advisories. Check for excessive play in the front anti-roll bars and suspension arms, which could indicate further wear or misalignment. Listen for clunking noises from the suspension during cornering or over bumps, and visually inspect the coil springs for signs of sagging or corrosion, which may compromise ride height and handling. The corroded coil springs noted in the MOT history suggest rust penetration, which could lead to spring failure if left unaddressed, causing uneven ride quality or even structural suspension failure. During a test drive, monitor for uneven tyre wear, which may indicate misaligned wheels or suspension issues, and ensure the brakes are responsive without any shuddering or binding, particularly on the near-side where the park brake has little reserve travel—a common issue with rusted caliper mechanisms. The engine MIL failures warrant immediate attention, as they may signal an electrical fault, such as a faulty sensor or wiring harness, that could lead to further damage if ignored. A diagnostic check should confirm whether the MIL is triggered by a persistent code or intermittent issues, which could point to a more complex problem. The oil leaks and front windscreen washer failures are less critical but should be addressed to prevent further fluid loss or washer fluid depletion. For the windscreen washers, ensure the reservoir is topped up with washer fluid, and check for leaks around the washer motor and hoses. The oil leak advisories suggest a need for a thorough inspection of the engine bay for loose or damaged seals, particularly around the valve cover, oil filter housing, or camshaft seals, as these are common leak points on Toyota Yaris engines. Finally, given the vehicle’s age and low mileage, inspect the tyres for sidewall cracking or perishing, which can occur from prolonged storage or exposure to UV light, and verify that the tyre pressures and tread depths meet legal requirements. Additionally, check the 12V battery for signs of corrosion or weak terminals, and test its charge capacity to ensure it holds a charge when stationary. Calendar-based servicing, such as fluid top-ups (oil, brake fluid, coolant) and brake system checks, should be performed every 2–3 years, regardless of mileage, to mitigate the risks of fluid degradation and corrosion.