2013 Infiniti Fx — MOT failures & pass rate
The 2013 Infiniti Fx passed 87.3% of its 504 recorded MOT tests. That is 7.3 percentage points better than all cars of a similar age, which fail at 20.0%. Failures cluster in tyres, lighting & signalling and emissions & environmental.
What the MOT record shows
No single area dominates — tyres (5.2%) and lighting & signalling (4.8%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are malfunction indicator lamp, tread depth and washers — malfunction indicator lamp alone was recorded 20 times.
Mileage matters less than usual here: the 2013 Fx fails 10.7% of the time in the 30-60k band and 13.5% at 120-150k, a spread of only 2.8 points.
Tyres is the most common advisory, noted on 20.0% of tests — work that passed today but is likely due soon.
The trend is worsening — 9.2% of tests failed in 2021 against 13.5% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 5.2% | 26 |
| 2 | Lighting & signalling | 4.8% | 24 |
| 3 | Emissions & environmental | 4.0% | 20 |
| 4 | Visibility | 4.0% | 20 |
| 5 | Brakes | 3.6% | 18 |
| 6 | Suspension | 2.8% | 14 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Malfunction indicator lamp | 20 |
| 2 | Tread depth | 19 |
| 3 | Washers | 18 |
| 4 | Registration plates | 14 |
| 5 | Position lamp | 14 |
| 6 | Rigid brake pipes | 10 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 20.0% | 101 |
| 2 | Suspension | 11.9% | 60 |
| 3 | Brakes | 11.7% | 59 |
| 4 | Other defects | 5.0% | 25 |
| 5 | Emissions & environmental | 5.0% | 25 |
| 6 | Visibility | 3.6% | 18 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 30-60k | 75 | 10.7% |
| 60-90k | 204 | 9.8% |
| 90-120k | 158 | 16.5% |
| 120-150k | 52 | 13.5% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 432 | 12.5% |
| Petrol | 72 | 13.9% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 98 | 9.2% |
| 2022 | 111 | 14.4% |
| 2023 | 102 | 14.7% |
| 2024 | 97 | 11.3% |
| 2025 | 96 | 13.5% |
What to check before buying a 2013 Fx
The failure pattern for this year is specific enough to inspect against: tyres accounted for 5.2% of tests. Start there.
- Tyres (5.2% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Lighting & signalling (4.8% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Emissions & environmental (4.0% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2013 Infiniti Fxs pass their MOT?
87.3% of the 504 2013 Infiniti Fx MOT tests in this dataset passed — a 12.7% fail rate.
What is the most common MOT failure on a 2013 Infiniti Fx?
Tyres, recorded in 5.2% of tests, followed by lighting & signalling (4.8%).
Does the 2013 Fx get worse with mileage?
Its MOT fail rate rises from 10.7% in the 30-60k band to 13.5% in the 120-150k band.
Methodology & source. Based on 504 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.