Hyundai I800 MOT pass rate & common failures
Across 17 model years and 49,074 tests, the Hyundai I800 passes its MOT 78.8% of the time. That is 5.3 percentage points worse than all cars of a similar age, which fail at 15.8%. Its most common failure areas are lighting & signalling, brakes and visibility.
Best and worst I800 years
Ranked across I800 years with at least 1,000 tests. Older cars fail more simply because they are older — compare years close together in age before drawing conclusions.
What the MOT record shows
Not every year is equal — 84.6% of 2019 examples pass against 70.3% of 2009 ones.
Lighting & signalling dominates the failure mix at 18.1% of all tests — 7.8 points clear of brakes, so it is the first thing to check.
At component level the recurring items are headlamp aim, position lamp and headlamp — headlamp aim alone was recorded 4,395 times.
Mileage is the strongest signal on the record: 13.0% of 0-30k cars fail, rising to 25.2% once past 150k.
Advisories point at the next bill rather than this one: brakes was flagged on 26.8% of tests without failing them.
How it compares
By model year
Every I800 model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2008 | 866 | 71.5% | 28.5% | Lighting & signalling |
| 2009 | 1,192 | 70.3% | 29.7% | Lighting & signalling |
| 2010 | 3,112 | 71.9% | 28.1% | Brakes |
| 2011 | 3,608 | 72.8% | 27.2% | Brakes |
| 2012 | 6,436 | 73.4% | 26.6% | Lighting & signalling |
| 2013 | 1,337 | 76.4% | 23.6% | Lighting & signalling |
| 2014 | 971 | 76.5% | 23.5% | Lighting & signalling |
| 2015 | 968 | 77.7% | 22.3% | Lighting & signalling |
| 2016 | 6,609 | 78.2% | 21.8% | Lighting & signalling |
| 2017 | 8,064 | 82.2% | 17.8% | Lighting & signalling |
| 2018 | 7,061 | 82.8% | 17.2% | Lighting & signalling |
| 2019 | 8,546 | 84.6% | 15.4% | Lighting & signalling |
| 2020 | 300 | 81.3% | 18.7% | Lighting & signalling |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 18.1% | 8,863 |
| 2 | Brakes | 10.3% | 5,044 |
| 3 | Visibility | 5.1% | 2,499 |
| 4 | Tyres | 5.0% | 2,453 |
| 5 | Suspension | 3.8% | 1,859 |
| 6 | Emissions & environmental | 3.1% | 1,529 |
| 7 | Steering | 1.6% | 785 |
| 8 | Body, structure & corrosion | 1.1% | 545 |
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 | 4,395 |
| 2 | Position lamp | 3,314 |
| 3 | Headlamp | 3,007 |
| 4 | Wipers | 1,881 |
| 5 | Rbt (sp) | 1,858 |
| 6 | Brake pads | 1,741 |
| 7 | Tread depth | 1,532 |
| 8 | Service brake performance | 1,450 |
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 | 26.8% | 13,132 |
| 2 | Tyres | 22.5% | 11,045 |
| 3 | Other defects | 12.7% | 6,229 |
| 4 | Lighting & signalling | 10.4% | 5,100 |
| 5 | Suspension | 9.7% | 4,770 |
| 6 | Emissions & environmental | 5.7% | 2,785 |
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 | 4,037 | 13.0% |
| 30-60k | 14,576 | 17.0% |
| 60-90k | 13,848 | 21.8% |
| 90-120k | 8,845 | 26.1% |
| 120-150k | 4,471 | 27.4% |
| 150k+ | 3,289 | 25.2% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 49,035 | 21.1% |
| Petrol | 39 | 41.0% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 8,352 | 21.2% |
| 2022 | 10,393 | 20.6% |
| 2023 | 10,315 | 20.8% |
| 2024 | 10,194 | 21.7% |
| 2025 | 9,820 | 21.6% |
What to check before buying a Hyundai I800
- Lighting & signalling (18.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (10.3% 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.
- Visibility (5.1% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
What is the MOT pass rate for the Hyundai I800?
78.8% of the 49,074 Hyundai I800 MOT tests in this dataset passed, a 21.2% fail rate, across model years 2008–2024.
What does the Hyundai I800 most often fail its MOT on?
Lighting & signalling, recorded in 18.1% of tests, then brakes (10.3%).
Which I800 years are best and worst for MOT results?
2019 has the best pass rate at 84.6% and 2009 the weakest at 70.3%, from 8,546 and 1,192 tests respectively.
How much does mileage affect I800 MOT results?
Fail rates run at 13.0% for cars in the 0-30k band and 25.2% for 150k+, a 12.2-point difference.
Methodology & source. Based on 49,074 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.