Hyundai I800 reliability, MPG and running costs
Figures updated
The Hyundai I800 is a car. In 2024 MOT tests it scored 71 for reliability (100 is average), ranking 423 of 442, and 38.0% failed first time against a UK average of 28.5%. Its most common MOT failure is position lamp (7.5% of tests).
Ranked 423 of 442 cars in the 2024 MOT Reliability League
In 2024, 8,205 Hyundai I800s aged 3 to 20 had an MOT and 38.0% failed first time (UK average 28.5%). Taking age and mileage into account, the Hyundai I800 is 41% more likely to fail than the average car of the same age and mileage.
First-time fail rate
38.0%
UK 28.5%
Fail rate at 3 years
–
UK 12.7%
Average miles a year
11,200
Typical age at test: 7 years
Hyundai I800 MOT failure rate by age
Most common Hyundai I800 MOT faults
- Position lamp: not working7.5% of tests
- Headlamp: not working on dipped beam6.2% of tests
- Headlamp aim: projected beam image is obviously incorrect4.9% of tests
- Malfunction indicator lamp: inoperative or indicates a malfunction3.7% of tests
- Brake pads: less than 1.5 mm thick3.7% of tests
- Registration plate lamp(s): inoperative in the case of a single lamp or all lamps3.2% of tests
What the Hyundai I800 fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Lights and electrics | 23.5% | ▲ 2.4× as often |
| Brakes | 12.6% | ▲ 2.1× as often |
| Tyres | 6.1% | ▼ 13% less often |
| Visibility | 5.8% | ▲ 1.4× as often |
| Suspension | 5.0% | ▼ 34% less often |
| Exhaust and emissions | 4.7% | ▲ 1.7× as often |
| Steering | 2.2% | ▲ 1.3× as often |
| Body and structure | 1.6% | ▼ 38% less often |
| Seat belts and airbags | 0.7% | ▼ 13% less often |
| Wheels | 0.5% | ▲ 1.2× as often |
What MPG does the Hyundai I800 do?
Official economy for the Hyundai I800 ranges from 30.4 to 37.7mpg across the 11 versions listed by the Vehicle Certification Agency (2010–2019). A typical diesel version manages 33.2mpg. Expect 10–15% less in real-world driving.
Work out a journey's fuel costHow much is road tax on a Hyundai I800?
Any Hyundai I800 first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Hyundai I800 registered between March 2001 and March 2017 is taxed on its CO2: £410 to £760 a year.
Work out tax for a specific carHyundai I800 specs and running costs
Official figures for 11 versions sold in the UK between 2010 and 2019.
Fuel types
Diesel
Official economy
30.4–37.7 mpg
CO2
197–244 g/km
Power
136–170 PS
| Version | Fuel | Economy | CO2 | Car tax |
|---|---|---|---|---|
| i800 2.5l136 PS · M6 · listed 2019 | Diesel | – | – | – |
| i800 2.5l170 PS · A5 · listed 2019 | Diesel | – | – | – |
| i800 2.5l CRDi 100kWM6 · listed 2018 | Diesel | 33.6 mpg | 222g | £200 |
| i800 2.5l CRDi 125kWA5 · listed 2018 | Diesel | 30.4 mpg | 244g | £200 |
| i800 2.5l CRDi 100kWManual · listed 2014 | Diesel | 37.7 mpg | 197g | £410 |
| i800 2.5l CRDi 125kWAutomatic · listed 2014 | Diesel | 32.1 mpg | 231g | £760 |
| i800 2.5l CRDi (100kW)Manual · listed 2013 | Diesel | 37.7 mpg | 197g | £410 |
| i800 2.5l CRDi (125kW)Automatic · listed 2013 | Diesel | 32.1 mpg | 231g | £760 |
| i800 2.5l CRDi (100kW)M6 · listed 2012 | Diesel | 37.7 mpg | 197g | £410 |
| i800 2.5l CRDi (125kW)A5 · listed 2012 | Diesel | 32.1 mpg | 231g | £760 |
| i800 2.5l CRTDM5 · listed 2010 | Diesel | 33.2 mpg | 225g | £445 |
Economy and CO2 are official NEDC (before 2018) or WLTP figures. Car tax is the yearly rate at current rates for a car first registered in the year listed, before any expensive car supplement.
What a Hyundai I800 costs to fuel
- diesel, typical official 33.2mpg…
Official figures are usually 10–15% better than real-world driving.
Work out a journey in a Hyundai I800Buying a used Hyundai I800?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Other Hyundai models
Frequently asked questions
›Is the Hyundai I800 reliable?
Its MOT record is worse than average: the Hyundai I800 is 41% more likely to fail than the average car of the same age and mileage, with a reliability score of 71 in our 2024 league (100 is average).
›What are common problems with the Hyundai I800?
The most common MOT fault is “Position lamp: not working”, found in 7.5% of tests. It fails on lights and electrics and brakes more often than similar cars.
›What MPG does the Hyundai I800 do?
Official economy for the Hyundai I800 ranges from 30.4 to 37.7mpg across the 11 versions listed by the Vehicle Certification Agency (2010–2019). A typical diesel version manages 33.2mpg. Expect 10–15% less in real-world driving.
›How much is road tax on a Hyundai I800?
Any Hyundai I800 first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Hyundai I800 registered between March 2001 and March 2017 is taxed on its CO2: £410 to £760 a year.
›How many Hyundai I800s fail their MOT?
38.0% of Hyundai I800s aged 3 to 20 failed their MOT first time in 2024.
Sources: DVSA anonymised MOT tests 2024, all versions of the Hyundai I800 combined (Open Government Licence v3.0); official economy and CO2 from Vehicle Certification Agency data, © Crown copyright. VCA cannot accept liability for its accuracy. How we calculate the league.