2016 Hyundai Tucson 1.6L Petrol · EJ66 BAU

The 2016 Hyundai Tucson’s most recent MOT test on 2025-11-14 was passed with no recorded defects, marking a positive turnaround following two consecutive failures in 2024. The vehicle’s exhaust-related issues, which caused major failures in both 2024 tests, suggest a persistent underlying problem with the engine’s combustion efficiency or exhaust gas recirculation (EGR) system, potentially linked to carbon buildup, faulty sensors, or a failing catalytic converter. While the 2025 test cleared these emissions concerns, the recurring pattern indicates that further investigation into the root cause—such as a thorough inspection of the EGR cooler, EGR valve, or oxygen sensors—is advisable before proceeding with purchase. The advisory from 2023 regarding rear brake disc wear and corrosion remains, though it is classified as non-critical, indicating moderate but manageable friction system degradation. The vehicle’s recorded mileage of 145,321 miles over roughly ten years represents an annual average of approximately 14,532 miles, which is high for a car of this age and model, particularly if it has been used for regular, heavy-duty driving. Such mileage accumulation accelerates wear on critical components like suspension bushes, coil springs, brake pads, and drivetrain elements, increasing the likelihood of premature failure or excessive maintenance costs. The absence of service records or mileage gaps suggests either aggressive usage or infrequent servicing, which could exacerbate issues such as fluid degradation, belt wear, or internal engine wear. The high mileage also raises concerns about potential hidden damage from rough road conditions, overloading, or prolonged exposure to extreme temperatures, all of which can compromise structural integrity or electrical systems over time. For a prospective buyer, the Hyundai Tucson’s current roadworthiness profile warrants a meticulous inspection beyond the MOT test results. Given the exhaust failures, prioritise a thorough examination of the engine bay for signs of carbon deposits on valves, pistons, or the intake manifold, and test for any unusual engine performance—such as hesitation, misfires, or excessive smoke—during acceleration or cold starts. On the drivetrain and suspension, check for excessive play in joints, clunking noises from worn suspension bushes or coil springs, and uneven tyre wear patterns that may indicate misalignment or steering system issues. The rear brake discs from the 2023 advisory should be closely inspected for thickness, warping, or binding, with calipers checked for excessive play or sticking. Listen for grinding noises during braking, as this could signal worn brake pads or metal-to-metal contact on discs. Additionally, address the vehicle’s fluid condition and general maintenance history. Given the high mileage, verify the service book for scheduled oil changes, timing belt replacement (if applicable), and fluid top-ups, particularly brake fluid, coolant, and transmission fluid, which degrade over time even when not actively used. Inspect the battery for corrosion on terminals and ensure it holds a charge, as standing vehicles can suffer from sulphation or terminal oxidation. Check for tyre sidewall perishing or cracking, which can occur from prolonged age or exposure to UV light, and ensure the tyres meet legal tread depths and have no signs of dry rot. Finally, consider a pre-purchase inspection by a qualified mechanic to confirm the exhaust system’s functionality, assess the drivetrain for excessive wear, and validate the absence of structural damage or electrical faults that may not have been flagged in the MOT.