Infiniti Q30 reliability, MPG and running costs
Figures updated
The Infiniti Q30 is a car. In 2024 MOT tests it scored 124 for reliability (100 is average), ranking 128 of 442, and 17.5% failed first time against a UK average of 28.5%. Its most common MOT failure is tread depth (2.4% of tests).
Ranked 128 of 442 cars in the 2024 MOT Reliability League
In 2024, 4,868 Infiniti Q30s aged 3 to 20 had an MOT and 17.5% failed first time (UK average 28.5%). Taking age and mileage into account, the Infiniti Q30 is 19% less likely to fail than the average car of the same age and mileage.
First-time fail rate
17.5%
UK 28.5%
Fail rate at 3 years
–
UK 12.7%
Average miles a year
8,600
Typical age at test: 7 years
Infiniti Q30 MOT failure rate by age
Most common Infiniti Q30 MOT faults
- Tread depth: tread depth below requirements of 1.6mm2.4% of tests
- Coil spring: fractured or broken2.2% of tests
- Brake pads: less than 1.5 mm thick1.8% of tests
- Headlamp: not working on dipped beam1.4% of tests
- Malfunction indicator lamp: inoperative or indicates a malfunction1.3% of tests
- Condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.2% of tests
What the Infiniti Q30 fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Tyres | 5.1% | ▼ 21% less often |
| Suspension | 4.4% | About average |
| Lights and electrics | 4.1% | ▼ 31% less often |
| Brakes | 3.3% | ▼ 26% less often |
| Visibility | 2.3% | ▼ 35% less often |
| Exhaust and emissions | 1.4% | ▼ 22% less often |
| Seat belts and airbags | 0.8% | ▲ 1.9× as often |
| Wheels | 0.5% | ▲ 1.7× as often |
| Body and structure | 0.3% | ▼ 76% less often |
| Steering | 0.1% | ▼ 87% less often |
What MPG does the Infiniti Q30 do?
Official economy for the Infiniti Q30 ranges from 42.2 to 72.4mpg across the 24 versions listed by the Vehicle Certification Agency (2018–2018). A typical petrol version manages 47.1mpg and a typical diesel 65.7mpg. Expect 10–15% less in real-world driving.
Work out a journey's fuel costHow much is road tax on a Infiniti Q30?
Any Infiniti Q30 first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Infiniti Q30 registered between March 2001 and March 2017 is taxed on its CO2: £20 to £275 a year.
Work out tax for a specific carInfiniti Q30 specs and running costs
Official figures for 24 versions sold in the UK between 2018 and 2018.
Fuel types
Diesel, Petrol
Official economy
42.2–72.4 mpg
CO2
102–156 g/km
| Version | Fuel | Economy | CO2 | Car tax |
|---|---|---|---|---|
| Q30 Euro6, 2016 Q30 1.5D 17 inch wheelM6 · listed 2018 | Diesel | 72.4 mpg | 103g | £200 |
| Q30 Euro6, 2016 Q30 1.5D 18 inch wheelM6 · listed 2018 | Diesel | 68.9 mpg | 108g | £200 |
| Q30 Euro6, 2016 Q30 1.5D 19 inch wheelM6 · listed 2018 | Diesel | 67.3 mpg | 109g | £200 |
| Q30 Euro6, 2016 Q30 1.5D dct 17 inch wheelA7 · listed 2018 | Diesel | 72.4 mpg | 102g | £200 |
| Q30 Euro6, 2016 Q30 1.5D dct 18 inch wheelA7 · listed 2018 | Diesel | 65.7 mpg | 111g | £200 |
| Q30 Euro6, 2016 Q30 1.5D dct 19 inch wheelA7 · listed 2018 | Diesel | 65.7 mpg | 113g | £200 |
| Q30 Euro6, 2016 Q30 2.2D dct 17 inch wheelA7 · listed 2018 | Diesel | 67.3 mpg | 109g | £200 |
| Q30 Euro6, 2016 Q30 2.2D dct 18 inch wheelA7 · listed 2018 | Diesel | 64.2 mpg | 115g | £200 |
| Q30 Euro6, 2016 Q30 2.2D dct 19 inch wheelA7 · listed 2018 | Diesel | 64.2 mpg | 116g | £200 |
| Q30 Euro6, 2016 Q30 2.2D dct AWD 17 inch wheelA7-AWD · listed 2018 | Diesel | 60.1 mpg | 122g | £200 |
| Q30 Euro6, 2016 Q30 2.2D dct AWD 18 inch wheelA7-AWD · listed 2018 | Diesel | 57.6 mpg | 127g | £200 |
| Q30 Euro6, 2016 Q30 2.2D dct AWD 19 inch wheelA7-AWD · listed 2018 | Diesel | 57.6 mpg | 129g | £200 |
| Q30 Euro6, 2016 Q30 1.6T 17 inch wheelM6 · listed 2018 | Petrol | 49.6 mpg | 133g | £200 |
| Q30 Euro6, 2016 Q30 1.6T 18 inch wheelM6 · listed 2018 | Petrol | 47.1 mpg | 138g | £200 |
| Q30 Euro6, 2016 Q30 1.6T 19 inch wheelM6 · listed 2018 | Petrol | 47.1 mpg | 140g | £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 24 versions.
What a Infiniti Q30 costs to fuel
- petrol, typical official 47.1mpg…
- diesel, typical official 65.7mpg…
Official figures are usually 10–15% better than real-world driving.
Work out a journey in a Infiniti Q30Buying a used Infiniti Q30?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Other Infiniti models
Frequently asked questions
›Is the Infiniti Q30 reliable?
Its MOT record is better than average: the Infiniti Q30 is 19% less likely to fail than the average car of the same age and mileage, with a reliability score of 124 in our 2024 league (100 is average).
›What are common problems with the Infiniti Q30?
The most common MOT fault is “Tread depth: tread depth below requirements of 1.6mm”, found in 2.4% of tests.
›What MPG does the Infiniti Q30 do?
Official economy for the Infiniti Q30 ranges from 42.2 to 72.4mpg across the 24 versions listed by the Vehicle Certification Agency (2018–2018). A typical petrol version manages 47.1mpg and a typical diesel 65.7mpg. Expect 10–15% less in real-world driving.
›How much is road tax on a Infiniti Q30?
Any Infiniti Q30 first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Infiniti Q30 registered between March 2001 and March 2017 is taxed on its CO2: £20 to £275 a year.
›How many Infiniti Q30s fail their MOT?
17.5% of Infiniti Q30s aged 3 to 20 failed their MOT first time in 2024.
Sources: DVSA anonymised MOT tests 2024, all versions of the Infiniti Q30 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.