INFINITI Q30 (2017)
Running costs, reliability data, and common problems from 4,603 real MOT tests.
Annual Cost
£1,845
£154/month
MOT Pass Rate
87%
Good
Road Tax
£195
Flat rate/year
Insurance
Grp 25-38
2143cc Diesel
Solid Option
87% pass rate, £1845/year to run. 5 points above average.
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Annual Running Costs
~40 mpg
Flat rate (post-2017)
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 9 years old, 87% of INFINITI Q30s from 2017 passed their MOT first time in 2026. That's based on 4,603 tests across the UK. The average mileage at this age is 58,398 miles.
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How Does It Compare?
Mileage Analysis
58,398
Average miles
66,600
Expected for age
The average 2017 INFINITI Q30 has 58,398 miles on the clock, which is in line with the expected 66,600 miles for a 9-year-old car, suggesting normal everyday use.
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Best Year to Buy?
The most reliable year is the 2018 model with a 93% MOT pass rate, while the 2017 model has the lowest at 87%. Consider a different year if reliability is a priority.
INFINITI Q30 by Year
Similar Cars to Consider
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About the 2017 INFINITI Q30
The 2017 INFINITI Q30 is a premium with a 2143cc diesel engine. 4,603 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. Among all cars from 2017, the average MOT pass rate is 87%, and this model falls short of that benchmark.
With an average of 58,398 miles at 9 years old, INFINITI Q30 owners drive about as much as the UK average.
2017 INFINITI Q30 Fuel Costs
The 2143cc diesel engine offers a reasonable balance between performance and economy. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.
What does it cost to own a 2017 INFINITI Q30?
Total estimated annual running cost is £1,845 (£154/month), broken down as £1245 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 87% pass rate. Keeping on top of servicing will help avoid surprises.
INFINITI Q30 Reliability Trend
Newer INFINITI Q30s show better MOT pass rates than older ones, with an average improvement of 5 percentage points.
Buying a Used 2017 INFINITI Q30
At 9 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage.
Common Issues to Watch For
Based on the 2017 INFINITI Q30's fuel type, age, and engine size, these are the most likely problem areas to check.
DPF (Diesel Particulate Filter)
Watch outShort journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.
Turbo Wear
Watch outDiesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.
AdBlue System
Medium riskPost-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.
EGR Valve
Watch outExhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.
Dual Mass Flywheel
Watch outLarger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.
Suspension Wear
Medium riskShock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2017 INFINITI Q30 stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| INFINITI Q30(2017) | 87% | £1245 | £195 | Grp 25-38 | £1845 |
| VOLKSWAGEN GOLF(2015) | 89% | £1037 | £135 | Grp 18-32 | £1577-£268 |
| FORD TRANSIT(2017) | 81% | £1037 | £190 | Grp 18-32 | £1632-£213 |
| FORD KUGA(2019) | 91% | £1037 | £190 | Grp 18-32 | £1482-£363 |
| KIA SPORTAGE(2016) | 85% | £1037 | £135 | Grp 18-32 | £1577-£268 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
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