2015 Toyota Yaris 1.3L Petrol · AP15 CSO

The most recent MOT test on the 2015 Toyota Yaris recorded a passing outcome on 2026-08-04, with the vehicle retaining overall roadworthiness despite persistent advisories. However, the history reveals a pattern of recurring issues, particularly the persistent oil leak advisory (8.4.1 (a) (i)), which has appeared in every MOT since 2023. The failure in 2021 highlighted a major tyre defect, while the 2024 test showed a near-major cut in the nearside rear tyre, indicating either poor maintenance or underlying wear issues. These inconsistencies suggest that while the vehicle has passed each test, underlying mechanical wear may be progressing more slowly than expected, warranting closer attention to fluid integrity and component longevity. The recorded mileage of 106,071 miles for a vehicle aged approximately 11 years represents a moderate annual usage rate of around 9,643 miles per year, which is within the expected range for its class. Such mileage typically reflects a balance between regular driving and periods of inactivity, though the absence of a service history or service book stamps complicates any direct correlation between mileage and wear. The lack of significant mileage spikes suggests steady operation, but the oil leak and tyre wear advisories imply that certain components, particularly seals and treads, have been subjected to cumulative stress over time. Without evidence of rapid mileage accumulation, the wear profile appears consistent with normal usage, but the advisories necessitate proactive checks to prevent escalation. For the prospective buyer, the most critical areas to inspect are the oil leak source and tyre condition. The persistent oil leak, classified as "not excessive" in each MOT, may stem from a worn oil seal in the engine, transmission, or differential, or a failing gasket. During a test drive, listen for unusual engine noises—such as a ticking or hissing from the engine bay—or check under the vehicle for signs of oil pooling. If the leak is confirmed, a thorough inspection of the oil pan gasket, valve cover gasket, and rear main seal is essential, as these are common failure points in the Yaris’ 1.5-litre engine. Additionally, the tyre defects from previous MOTs indicate that the nearside rear tyre has already suffered significant wear, with the 2024 failure showing a cut reaching the ply. The offside front tyre was also worn close to the legal limit in 2021, suggesting uneven or aggressive cornering habits. Replace the nearside rear tyre immediately to prevent further damage to the tread structure and ensure safe handling, while the offside front tyre should be monitored closely for further wear. Beyond immediate defects, the buyer should conduct a comprehensive physical inspection for age-related issues. Given the vehicle’s age and the lack of service records, focus on the following: check the tyre sidewalls for signs of perishing or cracking, which can compromise structural integrity and lead to blowouts; inspect the battery terminals for corrosion and ensure the 12V system is functioning properly, as standing vehicles can accelerate battery drain; verify that brake discs and calipers are not corroded or bound, particularly on the nearside rear where previous MOTs noted potential issues; and assess the suspension for signs of wear, such as clunking noises from worn suspension bushes or coil springs, or excessive play in the steering. Additionally, since the vehicle has not been serviced, consider checking the fluid levels and condition of the engine oil, transmission fluid, and coolant, as these fluids degrade over time even without mileage. If the vehicle has been stationary for extended periods, drain and replace the coolant to prevent freezing damage and corrosion in the water pump. Finally, verify that all lights and indicators function correctly, as the minor headlamp lens defects noted in previous MOTs could affect visibility and safety.