2010 Hyundai I30 1.6L Diesel · EO10 RVT

Corrosion in the rear suspension is the defining mechanical story of this 2010 Hyundai i30, and it is a worsening one. Rear suspension arms were first flagged as corroded but not seriously weakened in March 2023, described more loosely as rusty in 2024, and by March 2025 the offside rear lower suspension arm had deteriorated to the point of being seriously weakened, constituting a major defect and a test failure. That same 2025 test also found both rear anti-roll bar linkage ball joints excessively worn, another major failure. This is not an isolated event but the visible progression of a rust problem across three consecutive years, and it sits alongside a wider pattern of failures: a fractured offside front coil spring and a maladjusted parking brake in 2021, and in March 2023 a cluster of defects including an inoperative headlamp levelling device, a front passenger door that could not be opened from inside or outside, and a failed rear registration plate lamp. The overall trend is one of recurring failures interspersed with passes, with the corrosion issue clearly escalating rather than resolving. At 98,272 recorded miles over roughly sixteen years, the car has averaged about 6,100 miles annually, which is typical for its age and suggests regular, steady use rather than prolonged lay-up. Testing has been consistent each March with no significant gaps, so the mileage record appears continuous and credible. This usage pattern means the wear items flagged in the history, such as the fractured coil spring, worn brake disc, and corroded suspension arms, are consistent with normal age-related deterioration rather than abuse or neglect, but it also means the car has spent sixteen winters exposed to road salt, which is the likely driver of the structural corrosion now appearing in the rear suspension. A prospective buyer should treat the rear suspension as the priority inspection area. The 2025 failure means the offside rear lower arm and both anti-roll bar linkages should have been replaced for the car to be back on the road, so ask for invoices or receipts confirming this work was carried out, and inspect the nearside rear arm closely too, since it was corroding in parallel and may not be far behind. On a test drive, listen for knocking or clunking from the rear over bumps and uneven surfaces, which would indicate worn linkages or bushes, and check for any vagueness or sway in the rear end through corners. Given the 2021 coil spring failure at the front, examine both front springs for cracks or uneven ride height, and listen for a boinging or knocking noise over sharp bumps. Beyond the suspension, verify the parking brake holds firmly on a slope given its 2021 adjustment failure, and confirm the front passenger door opens freely from both inside and outside, as that was a serious safety defect in 2023. The offside rear brake disc was noted as worn, pitted and scored in 2022, so feel for judder or pulsing through the pedal under braking and inspect the discs for heavy lipping. The nearside front tyre has been repeatedly flagged for edge and inner wear across 2022, 2024 and 2025, a pattern that can point to tracking or alignment issues, so check the tyre shoulders for uneven wear and note whether the car pulls to one side on a straight road. Finally, the 2023 advisory for excessive exhaust smoke warrants a check of the exhaust on start-up and under acceleration for any blue or white smoke, which could indicate engine wear worth investigating before purchase.