2020 Hyundai Tucson 1.6L Petrol · NX20 DBV

The most recent MOT on 2026-05-06 was a clean pass at 33,463 miles — just ten days before today. That’s reassuring, but it follows a failure only five days earlier at nearly the same mileage. The key recurring issue is emissions-related: the May 2026 failure cited both an inoperative or malfunctioning engine MIL (check engine light) and an inability to complete the emissions test due to misfire detection. This strongly suggests an underlying engine management fault — not a one-off sensor glitch, but something affecting combustion or monitoring. No such issue appeared in the two prior years’ MOTs, meaning this is new and unresolved as of May 2026. The trend is worsening. Before 2026, defects were minor and non-mechanical: windscreen wiper performance and child seat obstructing belt inspection — both easily corrected and unrelated to drivetrain health. The sudden appearance of a serious emissions failure — especially one tied to misfire — marks a clear step down in reliability. At 33,463 miles over six years, average use is just under 5,600 miles per year — well below UK averages. That could mean lighter use, but low mileage isn’t inherently safer.