2018 Hyundai Ioniq 1.6L Hybrid electric · AF18 UGT

The defining mechanical story across this Hyundai Ioniq's MOT record centres on a persistent brake-related wear pattern, culminating in a 2024 failure where both rear brake discs and pads were flagged alongside excessively fluctuating rear brake service performance. Since 2023 the rear brake discs have appeared in advisories every year, progressing from minor pitting in 2023 to a major failure in 2024 when the offside rear pads were found worn down to their indicator wire and both rear brakes were fluctuating under test. A clean pass followed in 2025 with no brake advisories, and the most recent test on 2026-03-16 returned another pass, though a new advisory re-emerged on both rear brake discs showing wear, pitting and scoring. The overall trend suggests the rear braking system has been an ongoing area of attention, with the most recent test indicating renewed deterioration after a one-year respite, which any prospective buyer should treat as a recurring item rather than a resolved concern. With eight years on the road and 85,197 recorded miles on the odometer, the Ioniq has accumulated mileage at roughly 10,650 miles per year, which sits in a broadly typical band for its age. The testing record shows annual MOT entries from 2023 through 2026 with no multi-year gaps, suggesting the vehicle has remained in continuous use and has not been laid up for extended periods, which generally reduces the risk of seizing brakes, deteriorated rubber components and flat-spotted tyres that can accompany long periods of standing. The relatively steady annual mileage implies normal everyday driving rather than short-trip or motorway-dominant use, meaning wear on consumables such as brake components, tyres, suspension bushes and CV joint gaiters is likely to reflect standard mixed-condition service rather than unusual stress patterns. Given the flagged components, a prospective buyer should pay particular attention to the rear braking system during a test drive, listening for any grinding, scraping or pulsation through the brake pedal, as the 2024 failure for excessive fluctuation points to potential issues with caliper slide pins, seized pistons, uneven pad wear or contaminated friction surfaces. Even though the 2025 test passed cleanly on brakes, the return of disc pitting in 2026 indicates the discs are approaching the threshold where replacement becomes advisable, so the discs and pads on both rear corners should be physically inspected for lipping, hot spots and minimum thickness before purchase. On the road, the car should be tested from a brisk 60 mph stop with light and moderate pedal pressure, checking for any pull to one side, vibration through the pedal or a soft, spongy feel that could indicate the same fluctuation problem previously recorded. The repeated inner-edge tyre wear advisories across 2024 and 2025 deserve mechanical scrutiny rather than being dismissed as a tracking issue, as uneven inner-edge wear on all four tyres typically points to geometry problems such as worn suspension bushes, bent or sagging coil springs, droplinks, top mounts or tired anti-roll bar links, all of which are plausible on a vehicle now in its eighth year. On a test drive, listen for clonking or knocking noises from the front and rear suspension over speed humps, rough tarmac and uneven road surfaces, and feel for any vagueness in steering response, wandering at speed, or uneven self-centring. Tyres themselves should be examined for consistent tread depth across the full width, and the sidewalls inspected for any cracking or perishing as previously flagged on the nearside front. Finally, a borescope inspection of the rear brake pads and a measurement of rear disc thickness would be prudent, given that the same friction surfaces have now been flagged in three consecutive testing cycles.