2015 Hyundai I40 1.7L Diesel · FD65 CEY

The 2015 Hyundai i40 presents a mixed maintenance picture that has deteriorated noticeably in its most recent test cycle. The December 2025 pass at 129,275 miles came with seven separate advisories, a sharp contrast to the clean bills of health recorded in both November 2021 and December 2023. The trend is clearly worsening. Brake imbalance on the front axle only just met the legal threshold, the nearside front service brake was flagged for fluctuation, and the offside rear caliper was binding. These are not isolated minor niggles. Combined with worn rear trailing arm bushes on both sides and a pitted front brake disc, the record suggests the car has been running with deferred brake and suspension work rather than receiving proactive attention. Mileage accumulation sits at roughly 11,752 miles per year, which is typical for an eleven-year-old vehicle and does not raise immediate concern about excessive use or suspiciously low recorded distance. The progression is steady: 107,704 miles in November 2021, 118,042 in November 2022, 123,271 in December 2023, 126,314 in December 2024, and 129,275 in December 2025. There are no alarming gaps or sudden jumps. The annual increments have narrowed slightly in the most recent years, which may indicate lighter use or shorter commutes, but the mechanical wear flagged in the latest test does not reflect a car that has been gently driven. A buyer should focus the physical inspection on the rear suspension and braking system. The trailing arm main bushes were worn on both sides in December 2025, and suspension bushes that deteriorate at this rate often point to aged components that will need replacement soon. Check the rear subframe and trailing arm mounting points for corrosion, particularly if the car has spent time in areas using road salt. The binding offside rear caliper and fluctuating nearside front brake suggest the braking system has not been serviced recently. Inspect the condition of all four brake discs and pads, paying close attention to the offside front disc that was already pitted at the last test. A road test should confirm the front axle imbalance does not cause pulling or vibration under braking. The nearside front tyre has shown cracking or perishing in both the 2024 and 2025 tests, which indicates either a slow puncture, age-related sidewall degradation, or a replacement that was not done with a quality tyre. Check the date codes on all four tyres and the spare. The pitted front brake disc and binding rear caliper together suggest the previous owner was willing to pass the car with advisories rather than address underlying faults. That pattern of behaviour should make a buyer cautious about what else may have been left unattended beneath the surface.