Hyundai i40 reliability, MPG and running costs
Figures updated
The Hyundai i40 is a large family car. In 2024 MOT tests it scored 110 for reliability (100 is average), ranking 203 of 442, and 28.1% failed first time against a UK average of 28.5%. Its most common MOT failure is brake pads (4.2% of tests).
Ranked 203 of 442 cars in the 2024 MOT Reliability League, and 10 of 16 large family cars
In 2024, 21,134 Hyundai i40s aged 3 to 20 had an MOT and 28.1% failed first time (UK average 28.5%). Taking age and mileage into account, the Hyundai i40 is 9% less likely to fail than the average car of the same age and mileage.
First-time fail rate
28.1%
UK 28.5%
Fail rate at 3 years
–
UK 12.7%
Average miles a year
11,200
Typical age at test: 9 years
Hyundai i40 MOT failure rate by age
Most common Hyundai i40 MOT faults
- Brake pads: less than 1.5 mm thick4.2% of tests
- Track rod end: ball joint has excessive play3.9% of tests
- Headlamp: not working on dipped beam2.9% of tests
- Tread depth: tread depth below requirements of 1.6mm2.8% of tests
- Service brake performance: excessively binding1.9% of tests
- Condition: has ply or cords exposed1.6% of tests
What the Hyundai i40 fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Brakes | 9.1% | ▲ 1.3× as often |
| Lights and electrics | 8.1% | ▼ 30% less often |
| Tyres | 7.6% | About average |
| Suspension | 5.7% | ▼ 40% less often |
| Steering | 5.4% | ▲ 2.4× as often |
| Visibility | 3.2% | ▼ 27% less often |
| Exhaust and emissions | 1.8% | ▼ 46% less often |
| Body and structure | 1.1% | ▼ 64% less often |
| Seat belts and airbags | 0.5% | ▼ 36% less often |
| Wheels | 0.5% | About average |
What MPG does the Hyundai i40 do?
Official economy for the Hyundai i40 ranges from 42.8 to 67.3mpg across the 38 versions listed by the Vehicle Certification Agency (2012–2019). A typical petrol version manages 43.5mpg and a typical diesel 62.8mpg. Expect 10–15% less in real-world driving.
Work out a journey's fuel costHow much is road tax on a Hyundai i40?
Any Hyundai i40 first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Hyundai i40 registered between March 2001 and March 2017 is taxed on its CO2: £20 to £275 a year.
Work out tax for a specific carHyundai i40 specs and running costs
Official figures for 38 versions sold in the UK between 2012 and 2019.
Fuel types
Diesel, Petrol
Official economy
42.8–67.3 mpg
CO2
110–159 g/km
Power
115–136 PS
| Version | Fuel | Economy | CO2 | Car tax |
|---|---|---|---|---|
| i40 Tourer 1.6l SE Nav 115PS115 PS · M6 · listed 2019 | Diesel | – | – | – |
| i40 Saloon 1.6l SE Nav136 PS · DCT7 · listed 2019 | Diesel | – | – | – |
| i40 Saloon 1.6l SE Nav136 PS · M6 · listed 2019 | Diesel | – | – | – |
| i40 Tourer 1.6l SE Nav136 PS · DCT7 · listed 2019 | Diesel | – | – | – |
| i40 Tourer 1.6l SE Nav 136PS136 PS · M6 · listed 2019 | Diesel | – | – | – |
| i40 Saloon 1.6l SE Nav135 PS · M6 · listed 2019 | Petrol | – | – | – |
| i40 Tourer 1.6l SE Nav135 PS · M6 · listed 2019 | Petrol | – | – | – |
| i40 Saloon 100kW 17" wheels6MT · listed 2018 | Diesel | 62.8 mpg | 118g | £200 |
| i40 Saloon 100kW 17" wheelsDCT7 · listed 2018 | Diesel | 62.8 mpg | 118g | £200 |
| i40 Saloon 100kW 18" wheels6MT · listed 2018 | Diesel | 62.8 mpg | 119g | £200 |
| i40 Saloon 85kW6MT · listed 2018 | Diesel | 62.8 mpg | 118g | £200 |
| i40 Saloon 100kW 18" wheelsDCT7 · listed 2018 | Diesel | 62.8 mpg | 118g | £200 |
| i40 Tourer 1.6 CRDi 100kW 17" wheels6MT · listed 2018 | Diesel | 62.4 mpg | 122g | £200 |
| i40 Tourer 1.6 CRDi 100kW 18" wheels6MT · listed 2018 | Diesel | 60.1 mpg | 123g | £200 |
| i40 Tourer 1.6 CRDi 85kW6MT · listed 2018 | Diesel | 61.4 mpg | 121g | £200 |
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. Showing the 15 most recent of 38 versions.
What a Hyundai i40 costs to fuel
- petrol, typical official 43.5mpg…
- diesel, typical official 62.8mpg…
Official figures are usually 10–15% better than real-world driving.
Work out a journey in a Hyundai i40Buying a used Hyundai i40?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Compare the Hyundai i40 with other large family cars
Reliability, economy, car tax and running costs side by side.
Other Hyundai models
Frequently asked questions
›Is the Hyundai i40 reliable?
Its MOT record is better than average: the Hyundai i40 is 9% less likely to fail than the average car of the same age and mileage, with a reliability score of 110 in our 2024 league (100 is average).
›What are common problems with the Hyundai i40?
The most common MOT fault is “Brake pads: less than 1.5 mm thick”, found in 4.2% of tests. It fails on steering and brakes more often than similar cars.
›What MPG does the Hyundai i40 do?
Official economy for the Hyundai i40 ranges from 42.8 to 67.3mpg across the 38 versions listed by the Vehicle Certification Agency (2012–2019). A typical petrol version manages 43.5mpg and a typical diesel 62.8mpg. Expect 10–15% less in real-world driving.
›How much is road tax on a Hyundai i40?
Any Hyundai i40 first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Hyundai i40 registered between March 2001 and March 2017 is taxed on its CO2: £20 to £275 a year.
›How many Hyundai i40s fail their MOT?
28.1% of Hyundai i40s aged 3 to 20 failed their MOT first time in 2024.
Sources: DVSA anonymised MOT tests 2024, all versions of the Hyundai i40 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.