Infiniti Q50
From 3,843 MOT tests. Above average for its class.
Common MOT failure categories
Pass rate by registration year
Newer Q50s fare better: 2018 models pass at 85.5% vs 80.3% for 2014.
Pass rate by fuel type
What goes wrong?
The most common MOT failure reasons are a suspension pin, bush or joint excessively worn, a brake lining or pad worn below 1.5mm and tyre tread depth not in accordance with the requirements. The top issue, a suspension pin, bush or joint excessively worn, caused 153 failures in 2024. Checking tread depth (1.6mm legal minimum, 3mm recommended) before your test can save an unnecessary fail. You can check prices at Black Circles if you need replacements. If you need repairs before retesting, sites like BookMyGarage let you compare local prices.
| a suspension pin, bush or joint excessively worn | 153 |
| a brake lining or pad worn below 1.5mm | 107 |
| tyre tread depth not in accordance with the requirements | 103 |
| a tyre cords visible or damaged | 59 |
| a tyre seriously damaged | 42 |
| wiper blade missing or obviously not clearing the windscreen | 31 |
| engine mil illuminated indicating a malfunction | 27 |
| a lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 25 |
| a wheel with a loose or missing wheel nut, bolt or stud | 23 |
| parking brake efficiency below minimum requirement | 23 |
How serious are these failures?
Not all MOT failures are equal. 64.8% of Q50 failures are safety items (worn brakes, tyre damage, steering play). The car still drives, but you shouldn't. Only 4.6% are the kind that would actually strand you. When it does fail, the average repair bill is around £117.
Fuel type matters
Hybrid versions pass at 92.6% while Diesel versions pass at 82.4%, a 10 percentage point gap.
Infiniti Q50 on UK roads
The fleet is shrinking: 40 scrapped or exported in the past year, a net loss of 40. At this rate, roughly 73.3 years until none remain.
Quarterly breakdown
| Quarter | On road | SORN | New | Gone | Net |
|---|---|---|---|---|---|
| 2025 Q3 | 2,239 | 107 | +0 | -8 | -8 |
| 2025 Q2 | 2,254 | 100 | +0 | -12 | -12 |
| 2025 Q1 | 2,268 | 98 | +0 | -20 | -20 |
| 2024 Q4 | 2,291 | 95 | +0 | -0 | +10 |
| 2024 Q3 | 2,291 | 85 | +0 | -7 | -7 |
| 2024 Q2 | 2,300 | 83 | +0 | -37 | -37 |
| 2024 Q1 | 2,348 | 72 | +1 | -23 | -22 |
| 2023 Q4 | 2,376 | 66 | +0 | -0 | +6 |
12 variants on the road
| Variant | Fuel | Licensed | Share |
|---|---|---|---|
| Q50 Sport D Auto | Diesel | 845 | 43% |
| Q50 Premium D Auto | Diesel | 303 | 15% |
| Q50 Se D Auto | Diesel | 212 | 11% |
| Q50 Executive D Auto | Diesel | 100 | 5% |
| Q50 Sport Tech D Auto | Diesel | 73 | 4% |
| Q50S Hybrid Awd Auto | Hybrid Electric (Petrol) | 70 | 4% |
| Q50 Sport Auto | Petrol | 67 | 3% |
| Q50 Se D | Diesel | 66 | 3% |
| Q50 Sport Executive D Auto | Diesel | 63 | 3% |
| Q50 Se Executive D | Diesel | 56 | 3% |
| Q50S Hybrid Auto | Hybrid Electric (Petrol) | 53 | 3% |
| Q50 Se Executive D Auto | Diesel | 50 | 3% |
Source: DfT vehicle licensing statistics, 2025 Q3. Crown copyright, OGL v3.0.
By registration year
| Year | Pass rate | Top failures |
|---|---|---|
| 2018 | 85.5% | a brake lining or pad worn below 1.5mm, tyre tread depth not in accordance with the requirements |
| 2017 | 85.7% | a suspension pin, bush or joint excessively worn, tyre tread depth not in accordance with the requirements |
| 2016 | 83.1% | a suspension pin, bush or joint excessively worn, tyre tread depth not in accordance with the requirements |
| 2015 | 83.2% | a suspension pin, bush or joint excessively worn, a brake lining or pad worn below 1.5mm |
1 earlier years
| 2014 | 80.3% | a suspension pin, bush or joint excessively worn, a brake lining or pad worn below 1.5mm |
Typical mileage
Half of all Q50s tested had between 52,224 and 89,834 miles on the clock.
At 64,533 median miles, the Q50 has 0.026 failures per 10,000 miles driven.
Other Infiniti models
| Infiniti Q30 | 85.8% |
Common questions
What is the Infiniti Q50 MOT pass rate?
The Infiniti Q50 has a 83.5% MOT pass rate based on 3,843 real MOT tests. This is above the national average.
What are common MOT failures on a Infiniti Q50?
The most common MOT failure on the Infiniti Q50 is a suspension pin, bush or joint excessively worn, which caused 153 failures. Other common issues include a brake lining or pad worn below 1.5mm.
How many Infiniti Q50s are on UK roads?
There are 2,239 Infiniti Q50s currently licensed on UK roads, with 107 on SORN.
What is the typical mileage of a Infiniti Q50 at MOT?
The median mileage at MOT for a Infiniti Q50 is 64,533 miles. The middle 50% of vehicles tested have between 52,224 and 89,834 miles.
Buying a used Q50?
Start with the free tools. Look up the specific vehicle's MOT history on GOV.UK The mileage at each test will show if it's been wound back, and the advisory history tells you what's wearing. Cross-reference that against the typical failures above to see if anything looks unusual for this model.
The free data won't tell you about outstanding finance, theft markers, or write-off history. For that, you need a vehicle history check This is especially important on a private sale where you have fewer legal protections.
With a 83.5% pass rate and an average repair bill of £117 when things go wrong, budget accordingly.
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MOT data from DVSA anonymised test results, 2024 test year. Fleet data from DfT vehicle licensing statistics. Crown copyright, OGL v3.0. MOT pass rates are statistical summaries of test outcomes, not assessments of individual vehicle safety or condition. Always inspect a vehicle and check its full MOT history before purchasing. See terms of use.