Infiniti Q50 MOT pass rate and common problems
82.6% of 4,054 Infiniti Q50 MOT tests pass.
At 82.6%, the Q50 passes slightly less often than the average across all Infiniti models (85.8%).
The Infiniti Q50 has a pass rate of 82.6%, a little higher than the national average for cars (79.2%).
Own this Infiniti Q50?
This is the average across every Infiniti Q50 in the dataset. Look up your own registration for its actual MOT history, and a free place to keep its maintenance records.
Have service invoices? Upload and keep them with your car’s history →
How to check and keep your Infiniti’s service history →
Pass rate by vehicle age
Pass rate declines noticeably with age, from 88.0% at 3–6 years to 76.4% at 10–15 years.
| Vehicle age | Pass rate | Tests | Average mileage |
|---|---|---|---|
| 0–3 years | no tests recorded | 0 | no reading |
| 3–6 years | 88.0% | 308 | 50,320 miles |
| 6–10 years | 82.7% | 3,471 | 77,514 miles |
| 10–15 years | 76.4% | 275 | 89,076 miles |
| 15+ years | no tests recorded | 0 | no reading |
Common MOT failure reasons for the Infiniti Q50
The most common reason the Infiniti Q50 fails its MOT is brakes — present in 47.9% of failed tests, most often logged as "Less than 1.5 mm thick".
| Category | Share of failed tests | Example |
|---|---|---|
| Brakes | 47.9% | Less than 1.5 mm thick |
| Tyres | 36.8% | Tread depth below requirements of 1.6mm |
| Suspension | 33.2% | Ball joint excessively worn |
| Lamps, reflectors and electrical equipment | 25.4% | Not working |
| Visibility | 9.3% | Does not clear the windscreen effectively |
| Road Wheels | 5.8% | Fixing missing |
| Noise, emissions and leaks | 5.4% | Inoperative or indicates a malfunction |
| Body, chassis, structure | 3.1% | Cannot be opened from inside the vehicle |
| Identification of the vehicle | 1.6% | Incorrect |
| Seat belts and supplementary restraint systems | 1.1% | Warning lamp indicates a fault |
Buying a used Infiniti Q50: what to check
These checks follow the Infiniti Q50’s own MOT record: the areas it fails on most often, and how that changes as the car gets older. None of them replaces a mechanic’s inspection, but they tell you where to look first.
The biggest drop in pass rate for the Infiniti Q50 comes between 6–10 years and 10–15 years old, from 82.7% to 76.4%. If you are looking at one in or just past that range, read its MOT history closely.
By mileage, the steepest fall is from 0–30,000 mi to 30,000–60,000 mi: 92.4% down to 85.7%. Mileage matters as well as age, so compare the car’s recorded mileages with its year.
1. Brakes
Recorded in 47.9% of failed Infiniti Q50 MOTs.
On the test drive, the car should stop straight without pulling or juddering, and the handbrake should hold it on a slope. Look through the wheels for scored or heavily lipped discs.
2. Tyres
Recorded in 36.8% of failed Infiniti Q50 MOTs.
Check tread depth across the whole width of every tyre, including the inner edge. Uneven wear can point to alignment or suspension problems. Look for cuts and bulges in the sidewalls.
3. Suspension
Recorded in 33.2% of failed Infiniti Q50 MOTs. 10.9% of tests at 10–15 years failed on suspension, against 0.6% at 3–6 years.
Listen for knocks over bumps and speed humps, and check the car sits level. Push down on each corner: it should settle rather than keep bouncing.
4. Lights and electrics
Recorded in 25.4% of failed Infiniti Q50 MOTs. 9.1% of tests at 10–15 years failed on lights and electrics, against 1.6% at 3–6 years.
Walk round with the lights on: headlights (dipped and main), indicators, brake lights, fog light and number-plate lamp. Check the dashboard warning lights come on with the ignition, then go out once the engine starts.
5. Windscreen and wipers
Recorded in 9.3% of failed Infiniti Q50 MOTs.
Look for windscreen chips and cracks in the driver’s line of sight, and check the wipers clear the screen and the washers work.
Check the car’s own MOT history. Averages describe the model, not the car in front of you. Look up its registration for past failures, advisories that were never fixed, and gaps or dips in the recorded mileage.
Ask for the service history. Invoices show what was done and when; a stamp alone shows less. See how to check Infiniti service history and what a service history check can tell you.
Related Infiniti models
- Infiniti Q30 — 87.1% pass rate
Frequently asked questions
- What is the MOT pass rate for the Infiniti Q50?
- 82.6% of Infiniti Q50 MOT tests pass, based on 4,054 tests in the DVSA anonymised MOT tests and results dataset.
- What are the most common MOT failures for the Infiniti Q50?
- The most common reason the Infiniti Q50 fails its MOT is brakes — present in 47.9% of failed tests, most often logged as "Less than 1.5 mm thick".
- What are the common problems with the Infiniti Q50?
- Going by its MOT results, the most common problem areas on the Infiniti Q50 are brakes; tyres; suspension.
- What should I check when buying a used Infiniti Q50?
- Start with the areas it most often fails its MOT on: brakes; tyres; suspension; lights and electrics; windscreen and wipers. Then check the specific car's MOT history by registration for failures, advisories and mileage, and ask the seller for service invoices.
- Does this show the Infiniti Q50's service history?
- No — this is MOT test data, which covers roadworthiness, not servicing. A service history is a separate record of maintenance work, which a specific car only has if its owner has kept it. See the Infiniti service history guide for how to check and keep one.