Pass rate
86.3%
Above average — 0.3 pts ahead of the 86.0% that cars this age and mileage manage.
Across 8,559 recorded tests.
Typical repair bill £26–£66
2017 Infiniti Q30 MOT pass rate
- 2017
- typical 54,934 mi
Most common fault
Tyres
36.1% of faults · 19.8% nationally
mostly tread below the limit, cuts and sidewall bulges.
Part only £55–£85 for Tread depth below 1.6 mm. What fitting it takes →
Which year to buy
- Best 2019 91.4% pass
- Avoid 2016 86.1% pass
Across the 4 years on record, a spread of 5.3 points. See every year →
- First-attempt pass
- 84.6%
- Typical mileage
- 55k mi
The 2017 Infiniti Q30 MOT pass rate is 86.3% of its MOT tests — about what its age and mileage predict. Tyres is the biggest single reason it fails, at 36.1% of what testers record.
Check your postcode
MOT pass rates are national — type your postcode to see how Infiniti Q30 does in your corner of the country.
Expert verdict
Tyres: 1.8× the national share
Tyres make up 36.1% of everything recorded on the 2017 Infiniti Q30, against 19.8% nationally — 16.3 points above. Check all four tyres yourself, including the inner shoulders, and look at the date stamp — a tyre can pass on tread and still be six years old.
- When it fails, it costs. Only 22% of this model’s typical repairs come in under £30 in parts — the failures here tend to be the kind that need a garage rather than a bulb.
Written from this page's own figures: fault shares against the national composition, the like-for-like pass rate, and the priced repair list. How these are worked out
Watching a Infiniti Q30? Get an email when these numbers change .
How does the 2017 Infiniti Q30 compare?
Cars of this age and mileage average 86.0%, so this figure is 0.3 points ahead of what its age and mileage predict. On a first attempt, before any retests, the figure drops to 84.6%. The median 2017 Infiniti Q30 in this dataset had covered 54,934 mi.
The most common fuel recorded here is Diesel — 81% of tests, with a 85.8% pass rate. Pass rates also shift with the test month: tests recorded October–March passed 86.6% of the time, April–September 86.0%.
The single most recorded failure item is "Coil spring fractured or broken", noted on 2.07% of tests.
- 8,559 recorded tests behind this page.
- 86.3% overall pass rate, 84.6% on a first attempt.
- Across every year of the Infiniti Q30, the average is 86.7% — best year 2019 (91.4%), worst 2016 (86.1%).
Figures count every completed test on this vehicle-year in the dataset, including retests. See methodology for the exact definition.
This page's data
- Tests analysed
- 8,559
- Typical mileage (median)
- 54,934 mi
- Make and model
- Infiniti Q30
- Updated
- 2026-11-05
Source: DVSA anonymised MOT test data (2023–2025), OGL v3.0.
Top part to budget for
Coil Spring
Usually a DIY or independent-garage job.
Does mileage affect the Q30 MOT pass rate?
Pass rate by odometer reading. Bar lengths start at 71% so small gaps stay visible.
Fuel type and reliability
Pass rate by fuel type. Diesel is the most common here (81% of tests).
Regional pass rates for the Q30
| Region | Tests | Pass rate |
|---|---|---|
| North West | 1,332 | 87.3% |
| Yorkshire | 1,179 | 86.1% |
| Scotland | 1,178 | 85.0% |
| South East | 1,145 | 85.1% |
| North East | 1,106 | 87.7% |
| West Midlands | 748 | 87.8% |
| East of England | 619 | 85.0% |
| East Midlands | 397 | 85.4% |
| London | 380 | 90.0% |
| South West | 288 | 82.6% |
| Wales | 187 | 87.7% |
Regions come from the postcode area recorded at the test station. Areas on region borders are assigned to the region with the majority of their population.
What fails a 2017 Q30
Everything a tester recorded on this vehicle, grouped into the inspection sections that produced it. The notch on each bar is the national share, so you can see at a glance whether this car is unusual or just ordinary.
A test can record several items, so these percentages do not add up to 100%. The exact strings, with prices, are in the full DVSA record at the bottom of this page.
Before your test
Three checks worth doing on a 2017 Q30
These are not generic tips — they are the faults recorded most often on this exact model, rewritten as things you can check yourself. All three take about ten minutes and cost nothing.
-
Check the coil springs 2.1% of tests
“coil spring fractured or broken”
Look up inside each wheel arch with a torch, all the way round the spring. A snapped spring usually breaks at the very bottom coil, where a quick glance will not reach.
-
Check the suspension joints 1.9% of tests
“linkage ball joint dust cover ball joint dust cover severely deteriorated”
With the car parked on level ground, rock the top of each front wheel in and out while someone watches the suspension arm. Clunks, or rubber boots split and greasy, are what testers record here.
-
Check the windscreen 1.5% of tests
“windscreen damaged”
Check the driver’s side of the screen within the swept area for chips and cracks; anything larger than 10mm in the driver’s central view is a fail. Most chips can be resin-repaired for far less than a new screen.
Shares are the proportion of tests on this vehicle that recorded the item, so they overlap: one test can record several.
What it costs to get a 2017 Q30 through its MOT
Across the 10 items that are recorded most often on this model, the average repair comes to £26–£66 — and 22% of those repairs are parts that cost under £30.
- Average repair across the 10 common items
- £26–£66
- Cheapest common item: malfunction indicator lamp inoperative or…
- £3–£12
- Dearest common item: windscreen damaged
- £80–£200
- Common items a careful owner can do at home
- 90%
- Repairs that still cost under £30
- 22%
Estimates from typical UK parts prices, weighted by how often each item appears in 8,559 MOT tests on this vehicle. They exclude diagnostics, retest fees and garage labour where the part is a DIY fit, and they are not figures from the DVSA dataset. Older and higher-mileage examples cost more than the average. How these estimates are built → · All MOT repair costs → · Cheapest cars to put through a test →
Every year of the Q30, side by side
4 model years on record, from 2016 to 2019. Across them the pass rate runs from 86.1% to 91.4% — a spread of 5.3 points. The bar under each year is the item that failed it most often.
- 2016 86.1% coil spring fractured or broken
- 2017 86.3%coil spring fractured or broken
- 2018 90.7% tread depth below requirements of…
- 2019 91.4% has a cut in excess of the…
Colour is the pass rate on a fixed scale, so a block means the same thing on any model. Each year links to its own page with the full fault breakdown.
Compare the 2017 Infiniti Q30 with another year
The raw pass rate mostly measures age. The year comparison adds the like-for-like figure, the mileage bands and the repair bill.
Other 2017 cars with a similar record
- Audi Q5 86.3%
- SEAT Alhambra 86.3%
- BMW 216 86.3%
- Audi Q7 86.2%
- Ford Mustang 86.2%
- Vauxhall Astra 86.4%
Closest pass rates among 2017 cars with at least 2,000 tests, so a small sample cannot flatter itself into the list. See the full rankings: best and worst MOT pass rates.
The full DVSA record for the 2017 Infiniti Q30 10 failure items · 6 advisories · 10 inspection categories · mileage brackets · all of it in the page, none of it above the fold
Every inspection category
Shares of the 8,744 individual items recorded on this vehicle, and the same share across all cars nationally. A single test can record several items, so a row is not a percentage of tests.
| Category | Items | This car | Nationally | Difference |
|---|---|---|---|---|
| Tyres | 3,184 | 36.10% | 19.76% | +16.34 |
| Brakes | 2,455 | 27.80% | 20.89% | +6.91 |
| Suspension | 991 | 11.20% | 20.98% | −9.78 |
| Lamps, reflectors and electrical equipment | 674 | 7.60% | 12.21% | −4.61 |
| Non-component advisories | 615 | 7.00% | 4.18% | +2.82 |
| Visibility | 411 | 4.70% | 4.97% | −0.27 |
| Noise, emissions and leaks | 170 | 1.90% | 5.52% | −3.62 |
| Identification of the vehicle | 130 | 1.50% | 1.76% | −0.26 |
| Body, chassis, structure | 57 | 0.60% | 5.57% | −4.97 |
| Seat belts and supplementary restraint systems | 57 | 0.60% | 0.82% | −0.22 |
The exact failure items, in the tester's words
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Coil spring fractured or broken Suspension | Major | 2.1% | £25–65 |
| Linkage ball joint dust cover ball joint dust cover severely deteriorated Suspension | Minor | 1.9% | £18–45 |
| Windscreen damaged but not adversely affecting driver's view Visibility | Minor | 1.5% | £80–200 |
| Linkage ball joint dust cover ball joint dust cover no longer prevents the ingress of dirt Suspension | Major | 1.4% | £18–45 |
| Tread depth below requirements of 1.6mm Tyres | Major | 1.3% | £45–95 |
| Brake pads less than 1.5 mm thick Brakes | Major | 1.1% | £18–45 |
| Ball joint dust cover severely deteriorated Suspension | Minor | 0.99% | £18–45 |
| Malfunction indicator lamp inoperative or indicates a malfunction Noise, emissions and leaks | Major | 0.98% | £3–12 |
| Headlamp not working on dipped beam Lamps, reflectors and electrical equipment | Major | 0.96% | £5–25 |
| Position lamp light intensity obviously reduced Lamps, reflectors and electrical equipment | Minor | 0.93% | £5–25 |
Severity is as recorded: Major and Dangerous fail the test outright; Minor and Advisory do not. Costs are estimates from typical UK parts prices — see how they are built.
What testers noted without failing the car
Advisories are the early warnings — the same parts a year or two before they fail. Reading them is how you tell a car that has been maintained from one that has been patched.
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Has a tear, caused by separation or partial failure of its structure Tyres | Advisory | 15.7% | £45–95 |
| Tread depth below requirements of 1.6mm Tyres | Advisory | 14.6% | £45–95 |
| Brake discs in such a condition that it is seriously weakened Brakes | Advisory | 9.5% | £45–110 |
| Brake pads less than 1.5 mm thick Brakes | Advisory | 9.2% | £18–45 |
| Brake discs significantly and obviously worn Brakes | Advisory | 4.8% | £45–110 |
| Non-component advisories Nail in tyre Non-component advisories | Advisory | 3.0% | £45–95 |
Pass rate by mileage
| Mileage | Tests | Pass rate | Median odometer |
|---|---|---|---|
| 0-30k | 615 | 93.8% | 24,156 mi |
| 30-60k | 4,481 | 87.9% | 46,250 mi |
| 60-90k | 2,772 | 83.7% | 72,204 mi |
| 90-120k | 572 | 79.9% | 100,673 mi |
| 120k+ | 116 | 81.0% | 139,442 mi |
Source: 8,559 recorded tests on this vehicle-year. Every row above is recomputed from the same DVSA extract as the rest of the page — see the methodology.
2017 Q30 MOT questions
What is the MOT pass rate for a 2017 Infiniti Q30?
86.3% of the 8,559 2017 Infiniti Q30 tests in this dataset passed, against a national average of 86.0% for cars first used in 2017. First-attempt pass rate: 84.6%.
What are the most common MOT failures on a 2017 Infiniti Q30?
The three most recorded items are coil spring fractured or broken (2.07%), linkage ball joint dust cover ball joint dust cover severely deteriorated (1.90%), windscreen damaged but not adversely affecting driver's view (1.50%). Percentages are the share of tests on this vehicle that recorded the item.
Does mileage affect the 2017 Infiniti Q30 MOT pass rate?
Yes. Cars under 30,000 miles passed 93.8% of the time, falling to 81.0% for those over 120,000 miles. The median 2017 Infiniti Q30 in this dataset had covered 54,934 mi.
Which fuel type is most reliable for a 2017 Infiniti Q30?
Diesel: 85.8% pass rate across 6,922 tests. Petrol: 88.5% pass rate across 1,637 tests. Shares are of the tests on this vehicle that recorded each fuel type.
Does the season affect the 2017 Infiniti Q30 MOT pass rate?
Tests recorded in the winter months (October–March) passed 86.6% of the time; summer months (April–September) passed 86.0%. Brakes, tyres and lights are tested harder in bad weather, but the difference is small on most models.