MOT failure data · 2025
Hyundai I30 MOT problems
Across every Hyundai I30 that failed its 2025 MOT, the defect testers recorded most often was rbt (sp) efficiency below requirements, on 5.96% of failure items. The broadest problem area was brakes at 26.11%. These are recorded defects across the model, not a diagnosis of any one car.
Most common Hyundai I30 MOT failures
| # | Recorded defect | Area | Share |
|---|---|---|---|
| 1 | Rbt (sp) efficiency below requirements | Brakes | 5.96% |
| 2 | Track rod end ball joint has excessive play | Steering | 5.91% |
| 3 | Tread depth tread depth below requirements of 1.6mm | Tyres | 4.93% |
| 4 | Stop lamp not working | Lamps, reflectors and electrical equipment | 4.86% |
| 5 | Position lamp not working | Lamps, reflectors and electrical equipment | 3.62% |
| 6 | Brake pads less than 1.5 mm thick | Brakes | 3.6% |
| 7 | Parking brake performance inoperative on one side | Brakes | 3.38% |
| 8 | Ball joint ball joint excessively worn | Suspension | 3.3% |
| 9 | Pins and bushes pin or bush excessively worn | Suspension | 3.03% |
| 10 | Headlamp not working on dipped beam | Lamps, reflectors and electrical equipment | 2.99% |
Shares are of all recorded failure items for this model, so they sum to less than 100% — a single failed test often records several defects, and the long tail below the top 10 is not shown.
What this means if you are buying one
Use it as a viewing checklist. If you are looking at a Hyundai I30, these are the areas worth inspecting and worth asking about — and worth reading the car's own MOT history for, since a defect that keeps reappearing as an advisory is a better signal than any model-wide average.
The MOT record also has hard limits: it does not check the engine, clutch or gearbox, and it says nothing about outstanding finance, insurance write-off history, stolen markers or whether the mileage is genuine. Our used Hyundai I30 buying guide covers what to check beyond the MOT.
Checking a specific Hyundai I30?
Enter its registration for finance, write-off, stolen, mileage and keeper history.
Other Hyundai models
- Hyundai I10 MOT problems
- Hyundai Tucson MOT problems
- Hyundai I20 MOT problems
- Hyundai Kona MOT problems
- Hyundai Ioniq MOT problems
- Hyundai IX35 MOT problems
Hyundai I30 MOT FAQs
What does a Hyundai I30 most commonly fail its MOT on?
The single most recorded defect on Hyundai I30 cars failing their 2025 MOT was "rbt (sp) efficiency below requirements", appearing on 5.96% of failure items.
Does this mean my Hyundai I30 will fail?
No. This is what testers recorded across every Hyundai I30 that failed in 2025. It shows where this model tends to need attention, not the condition of any individual car. The Hyundai I30 passed 71.21% of its initial tests.
How do I see a specific Hyundai I30's MOT history?
Enter its registration on our free MOT history check to see that car's own test results, advisories and recorded mileages.
See also: Hyundai I30 MOT pass rate · used Hyundai I30 buying guide · free MOT history check
Defect counts from the DVSA MOT Anonymised test-item data for 2025 (class 4 initial tests, failure items only — advisories and minor defects excluded), licensed under the Open Government Licence v3.0.