2015 Hyundai I40 1.7L Diesel · PL15 CKO

The most recent MOT test on the Hyundai i40 was conducted on 2026-07-21 and resulted in a passing outcome, indicating that the vehicle met all current roadworthiness standards at that time. However, the preceding test on 2026-07-20 revealed a concerning trend, with the vehicle failing due to dangerous defects—specifically, the near-side front tyre having a tread depth below the legal minimum of 1.6mm and the offside front outer tyre being worn close to the legal limit while also worn on the edge. These failures suggest a pattern of tyre wear that may have been accelerated by either aggressive driving, improper alignment, or excessive load distribution. While the intervening MOT tests since 2023 have been clean, the presence of recurring tyre-related advisories from previous years—such as the rear tyres showing signs of cracking or perishing—indicates that tyre management has been inconsistent. This highlights a need for heightened scrutiny during the inspection, as tyres are critical for traction, handling, and safety, and their condition can degrade rapidly if left unattended. The vehicle’s recorded mileage of 138,618 miles at the time of this assessment represents a high annual usage rate of approximately 12,602 miles per year, which is notably elevated for a 11-year-old car. Such mileage accumulation typically accelerates wear on consumables like brakes, tyres, and suspension components, as well as fluid degradation and potential corrosion from prolonged exposure to environmental elements. The absence of significant service intervals or maintenance logs over the past few years may also contribute to hidden issues, such as brake disc corrosion or binding calipers from prolonged standing, or suspension bush wear from excessive use. Additionally, the rapid mileage accumulation without evident long-term storage periods suggests the vehicle has been driven frequently, which could mean higher stress on the drivetrain, exhaust system, and internal engine components. Buyers should be particularly cautious about the potential for accelerated wear in these areas, as well as the risk of fluid degradation—such as brake fluid, differential fluid, or coolant—due to the vehicle’s age and usage profile. Given the vehicle’s MOT history, the most critical areas to inspect during a thorough examination are the tyres, brakes, and suspension. The dangerous failure in 2026-07-20 underscores the urgency of verifying the tread depth of all four tyres, ensuring no further degradation has occurred since the last test. Look for uneven wear patterns, which may indicate misalignment, poor wheel balance, or suspension issues. The offside front tyre’s edge wear could also suggest directional stability problems, and the near-side front tyre’s low tread depth is a severe safety hazard that must be addressed immediately. During a test drive, listen for unusual noises from the brakes, such as grinding or squeaking, which may signal worn pads or warped discs. Additionally, check for brake shudder or pulsation, which could indicate warped discs or binding calipers. Inspect the rear tyres for cracks or perishing, as the previous MOT advisory suggests this is a recurring concern, and replace them if they are significantly compromised. Beyond the tyres and brakes, the suspension should be scrutinised for signs of wear or damage. Listen for clunks or rattles during acceleration, braking, and cornering, which may indicate failing suspension bushes, broken coil springs, or damaged strut mounts. Visually inspect the suspension components for oil leaks or excessive play, and check the alignment of the wheels to ensure they are properly set. The vehicle’s high mileage and lack of recent maintenance also warrant a closer look at the drivetrain, exhaust system, and fluid levels. Verify that the differential and transmission fluids are topped up and free from contamination, as these fluids degrade over time and can lead to premature component failure. Check the coolant level and condition, ensuring no signs of overheating or corrosion in the radiator or hoses. Lastly, given the vehicle’s age, inspect the engine bay for signs of oil leaks, which can indicate failing seals or gaskets, and ensure the 12V battery is in good condition, as older vehicles may struggle with electrical systems if the battery is weak or corroded. If possible, obtain a service history to confirm whether routine maintenance such as oil changes, filter replacements, and fluid top-ups have been conducted, as this will provide further insight into the vehicle’s upkeep.