2008 Hyundai I800 — MOT failures & pass rate
Across 866 MOT tests, the 2008 Hyundai I800 recorded a 71.5% pass rate. Against all cars of a similar age (26.2% fail rate), the 2008 I800 comes out 2.4pp worse. Failures cluster in lighting & signalling, brakes and suspension.
What the MOT record shows
No single area dominates — lighting & signalling (19.6%) and brakes (16.9%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are headlamp aim, rbt (sp) and track rod end — headlamp aim alone was recorded 89 times.
Condition tracks the odometer closely. Failures run at 24.1% in the 60-90k band and 29.3% in the 150k+ band, a 5.2-point spread.
Advisories point at the next bill rather than this one: brakes was flagged on 34.1% of tests without failing them.
The trend is improving — the fail rate fell from 29.6% in 2021 to 23.4% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 19.6% | 170 |
| 2 | Brakes | 16.9% | 146 |
| 3 | Suspension | 10.1% | 87 |
| 4 | Steering | 7.6% | 66 |
| 5 | Tyres | 4.6% | 40 |
| 6 | Visibility | 4.5% | 39 |
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 | 89 |
| 2 | Rbt (sp) | 69 |
| 3 | Track rod end | 65 |
| 4 | Headlamp | 55 |
| 5 | Ball joint | 46 |
| 6 | Position lamp | 41 |
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 | 34.1% | 295 |
| 2 | Suspension | 32.7% | 283 |
| 3 | Other defects | 28.9% | 250 |
| 4 | Lighting & signalling | 24.0% | 208 |
| 5 | Tyres | 23.7% | 205 |
| 6 | Emissions & environmental | 21.4% | 185 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 60-90k | 112 | 24.1% |
| 90-120k | 337 | 29.7% |
| 120-150k | 249 | 29.7% |
| 150k+ | 133 | 29.3% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 216 | 29.6% |
| 2022 | 190 | 27.9% |
| 2023 | 171 | 29.2% |
| 2024 | 165 | 30.9% |
| 2025 | 124 | 23.4% |
What to check before buying a 2008 I800
On a 2008 I800, lighting & signalling is what the MOT record says goes wrong most — it appeared in 19.6% of tests. Check these areas before you commit.
- Lighting & signalling (19.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (16.9% 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 (10.1% 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 2008 Hyundai I800s pass their MOT?
71.5% of the 866 2008 Hyundai I800 MOT tests in this dataset passed — a 28.5% fail rate.
What is the most common MOT failure on a 2008 Hyundai I800?
Lighting & signalling, recorded in 19.6% of tests, followed by brakes (16.9%).
Does the 2008 I800 get worse with mileage?
Its MOT fail rate rises from 24.1% in the 60-90k band to 29.3% in the 150k+ band.
Methodology & source. Based on 866 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.