Hyundai I40 (2018)
2018 Hyundai I40
CarHunch analysed 1,275 real MOT records for the 2018 Hyundai I40. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2018 Hyundai I40 diesel matches the UK average first-time pass rate at 80.3%, which is respectable, but nearly a quarter of these cars (24.9%) have recorded a dangerous defect at some point—higher than typical and worth investigating on any used example you're considering. Diesel dominates the I40 lineup, and its 80.2% pass rate is consistent with the overall cohort.
At 59,363 miles median, these five-year-old cars show reasonable usage patterns. The average vehicle has picked up 0.86 failures and 5.3 advisories across its MOT history, suggesting wear accumulates gradually rather than catastrophically—but that high dangerous-defect figure means you should get a thorough pre-purchase inspection and scrutinise the full MOT history before committing.
What to check before buying a 2018 Hyundai I40
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- ⚠️ 24.9% of these vehicles have had a dangerous defect recorded. Enter the reg below — the full MOT history will show exactly what was flagged and whether it was resolved.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Hyundai I40
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (99%) | 1,259 | 80.2% | 0.86 |
| Petrol (1%) | 16 | 85% | 0.63 |
Mileage Distribution
Most 2018 Hyundai I40 vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2018 Hyundai I40 vehicles fall between 41,469 and 81,723 miles.
2018 Hyundai I40 — Still on the Road
Strong survival — 1,033 vehicles still getting MOTs in 2025, 91% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2019–2025.
MOT History Averages
Most Common MOT Issues — 2018 Hyundai I40
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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44.3%
Nearside Front Tyre worn close to legal limit/worn on edge
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42.8%
Offside Front Tyre worn close to legal limit/worn on edge
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33.6%
Front Brake pad(s) wearing thin
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29.9%
Rear Brake pad(s) wearing thin
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25%
Offside Rear Tyre slightly damaged/cracking or perishing
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24.5%
Nearside Rear Tyre slightly damaged/cracking or perishing
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19.5%
Nearside Rear Tyre worn close to legal limit/worn on edge
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18.7%
Offside Rear Tyre worn close to legal limit/worn on edge
Data covers a 3-year window centred on 2018. Counts include advisories and failures.
Found a specific Hyundai I40?
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