2012 Hyundai I800 — MOT failures & pass rate
The 2012 Hyundai I800 passed 73.4% of its 6,436 recorded MOT tests. All cars of a similar age fail 21.6% of the time, so this is 5.0pp worse than the group it competes with. Failures cluster in lighting & signalling, brakes and suspension.
What the MOT record shows
No single area dominates — lighting & signalling (17.9%) and brakes (15.6%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are headlamp aim, position lamp and rbt (sp) — headlamp aim alone was recorded 488 times.
Mileage is the strongest signal on the record: 11.0% of 0-30k cars fail, rising to 28.3% once past 150k — 2.6× the risk.
Brakes is the most common advisory, noted on 34.9% of tests — work that passed today but is likely due soon.
The trend is worsening — 24.6% of tests failed in 2021 against 28.3% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 17.9% | 1,153 |
| 2 | Brakes | 15.6% | 1,004 |
| 3 | Suspension | 8.8% | 566 |
| 4 | Visibility | 5.5% | 353 |
| 5 | Tyres | 4.9% | 315 |
| 6 | Steering | 3.8% | 242 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 488 |
| 2 | Position lamp | 487 |
| 3 | Rbt (sp) | 427 |
| 4 | Ball joint | 372 |
| 5 | Service brake performance | 317 |
| 6 | Parking brake performance | 298 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Brakes | 34.9% | 2,245 |
| 2 | Tyres | 23.2% | 1,494 |
| 3 | Suspension | 20.9% | 1,346 |
| 4 | Other defects | 16.6% | 1,071 |
| 5 | Lighting & signalling | 14.8% | 952 |
| 6 | Emissions & environmental | 10.6% | 683 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 73 | 11.0% |
| 30-60k | 656 | 18.3% |
| 60-90k | 1,488 | 25.3% |
| 90-120k | 2,005 | 28.1% |
| 120-150k | 1,176 | 29.8% |
| 150k+ | 1,035 | 28.3% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 1,343 | 24.6% |
| 2022 | 1,336 | 26.5% |
| 2023 | 1,292 | 25.9% |
| 2024 | 1,256 | 28.0% |
| 2025 | 1,209 | 28.3% |
What to check before buying a 2012 I800
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 17.9% of tests. Start there.
- Lighting & signalling (17.9% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (15.6% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
- Suspension (8.8% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2012 Hyundai I800s pass their MOT?
73.4% of the 6,436 2012 Hyundai I800 MOT tests in this dataset passed — a 26.6% fail rate.
What is the most common MOT failure on a 2012 Hyundai I800?
Lighting & signalling, recorded in 17.9% of tests, followed by brakes (15.6%).
Does the 2012 I800 get worse with mileage?
Its MOT fail rate rises from 11.0% in the 0-30k band to 28.3% in the 150k+ band.
Methodology & source. Based on 6,436 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.