2017 Hyundai I20 1.0L Petrol · WD66 TYT

The defining mechanical story of this Hyundai i20 centres on a stubborn electrical fault in the offside door mirror side repeater, which has been flagged at every MOT test since 2024 and was the direct cause of the only failure in the recorded history. On 16 June 2023, the nearside side repeater not functioning was recorded as a Major defect, resulting in a fail that was subsequently remedied and passed just minutes or hours later on the same date. Since that episode, the same nearside repeater has been recorded as a Minor defect on three consecutive annual tests, most recently on 15 June 2026, meaning the issue has persisted but at a level that does not cause outright failure. This pattern suggests either a damaged bulb cluster within the mirror unit or a wiring/connector fault at the mirror housing that has never been properly rectified. Aside from this recurring item, the rest of the record is largely uneventful, with two clean passes recorded in 2021 and 2022 and no structural, brake, suspension, or corrosion advisories on file. At 60,388 miles over nine years, the i20 has covered an average of roughly 6,710 miles annually, which sits broadly in line with typical commuter use for a car of this age and segment. There are no extended gaps in the testing record to suggest prolonged off-road storage, nor are there any abrupt year-on-year mileage jumps that might indicate heavy motorway use, towing, or a change of use pattern. This steady accumulation places moderate wear on consumables such as brake pads, discs, tyres, and clutch components, but does not point to the kind of intensive use that accelerates premature wear on suspension bushes or drivetrain items. The test in 2023 flagged a nail in the nearside rear tyre, which is a one-off roadside hazard rather than a systemic concern, and no further tyre-related advisories have been recorded since. For a prospective buyer, the immediate priority is the side repeater issue. On inspection, the nearside door mirror should be checked visually to confirm whether all segments of the repeater illuminate, and the wiring loom where it passes through the mirror fold mechanism should be examined for chafed or broken conductors, as this is a known failure point on i20s of this generation. Replacement of the repeater LED unit or the complete mirror glass assembly is the usual remedy and is relatively inexpensive, but a recurring fault over three years suggests the underlying cause may not have been properly diagnosed. The front brake pads were noted as wearing thin in 2025, and given average annual mileage the pads may now be approaching the limit of useful material, so a spanner check of pad thickness and a visual inspection of the front discs for lipping or surface corrosion is advisable. On a test drive, particular attention should be paid to brake pedal feel, with any excessive travel, sponginess, or pulling to one side under firm braking warranting further investigation of the caliper slides, disc condition, and hydraulic system. The steering should be assessed for clonks or looseness over speed humps and uneven road surfaces, which would indicate wear in the front suspension components such as anti-roll bar drop links or wishbone bushes. Tyres should be inspected for even tread wear across the axle, as inconsistent wear can point to misalignment, worn suspension bushes, or sagging coil springs. Finally, the underbonnet area, coolant hoses, and exhaust system should be visually examined for any signs of leakage, corrosion, or insecure mounting, even though none of these items have been flagged historically, as a nine-year-old car with average mileage will naturally show some age-related deterioration.