Infiniti Q30

Reliability, estimated running costs, and MOT data across 4 model years from 8,725 MOT tests in 2024.

Avg Pass Rate

90%

Total Tests

8,725

Highest Pass Rate

2018 (93%)

Years Covered

About the Infiniti Q30

The Infiniti Q30 was MOT tested 8,725 times in 2024 (DVSA data, retests included) across 4 model years (2016 to 2019), with an average pass rate of 90%. That's comfortably above the average of 82% across all models in our data. Our records list diesel versions.

Best and Worst Years

Of the years with at least 100 tests, the 2018 model has the highest pass rate at 93% from 530 tests. The 2017 model has the lowest at 87%. The 6 point gap means pass rates vary somewhat between years, but no year is dramatically different. Newer cars usually pass more often simply because they are younger.

Reliability Trend

Newer Infiniti Q30s pass their MOT more often than older ones, by 5 percentage points on average, which is mostly down to age and wear.

Mileage Across Years

The oldest model in our data (2016) averages 66,910 miles, while the newest (2019) averages 35,417 miles.

Estimated Running Costs

Fuel (Diesel, 2143cc)

£1,676

Road Tax

£200

MOT Test

£55

Predicted Repairs

£200

Total per year£2,131

Per month£178/mo

Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.

Full 2019 details

How reliable is the Infiniti Q30?

vs average of all models+8% (82% avg)

vs Infiniti brand average+3% (87% avg)

Best to worst year spread6 percentage points

Reliability trendImproving over years

Infiniti Q30 by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

Year	Pass Rate	Tests	Avg Mileage
2019	91%	358	35,417 mi
2018	93%	530	46,589 mi
2017	87%	4,603	58,398 mi
2016	88%	3,234	66,910 mi

Questions about the Infiniti Q30

Is the Infiniti Q30 reliable?

Across its 4 model years in our data (2016 to 2019), the Infiniti Q30 averages a 90% MOT pass rate, from 8,725 tests (DVSA MOT data for tests in 2024, retests included). That's 8 points above the average of 82% across all models in the same data. The 2018 model has the highest pass rate of the years with at least 100 tests, at 93%.

Which year Infiniti Q30 has the best MOT pass rate?

Of the years with at least 100 tests, the 2018 Infiniti Q30 has the highest MOT pass rate at 93%, while the 2017 model has the lowest at 87%, a 6 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.