2017 Infiniti Q70 — MOT failures & pass rate
Across 820 MOT tests analysed for the 2017 Infiniti Q70, the most common recorded failure areas were tyres, brakes and suspension. Its pass rate of 87.4% was in line with the average for cars of a similar age (87.5%). Higher-mileage examples failed more often — 19.6% in the 90-120k group versus 5.2% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 5.1% | 42 |
| 2 | Brakes | 4.6% | 38 |
| 3 | Suspension | 2.3% | 19 |
| 4 | Visibility | 2.2% | 18 |
| 5 | Lighting & signalling | 2.1% | 17 |
| 6 | Emissions & environmental | 1.8% | 15 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Brake pads | 27 |
| 2 | Wipers | 23 |
| 3 | Tread depth | 16 |
| 4 | Malfunction indicator lamp | 14 |
| 5 | Ball joint | 13 |
| 6 | Linkage ball joints | 9 |
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 | 22.3% | 183 |
| 2 | Brakes | 20.6% | 169 |
| 3 | Suspension | 16.6% | 136 |
| 4 | Visibility | 3.4% | 28 |
| 5 | Other defects | 3.2% | 26 |
| 6 | Steering | 1.0% | 8 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 115 | 5.2% |
| 30-60k | 420 | 13.3% |
| 60-90k | 228 | 13.2% |
| 90-120k | 51 | 19.6% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 790 | 12.5% |
| Hybrid | 30 | 13.3% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 160 | 6.3% |
| 2022 | 168 | 12.5% |
| 2023 | 163 | 13.5% |
| 2024 | 162 | 16.1% |
| 2025 | 167 | 14.4% |
What to check before buying a 2017 Q70
Before buying a 2017 Infiniti Q70, focus on the areas it most often fails on. Tyres accounted for 5.1% of tests for this year.
- Tyres (5.1% 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.
- Brakes (4.6% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
- Suspension (2.3% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
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 2017 Infiniti Q70s pass their MOT?
87.4% of the 820 2017 Infiniti Q70 MOT tests in this dataset passed — a 12.6% fail rate.
What is the most common MOT failure on a 2017 Infiniti Q70?
Tyres, recorded in 5.1% of tests, followed by brakes (4.6%).
Does the 2017 Q70 get worse with mileage?
Its MOT fail rate rises from 5.2% in the 0-30k band to 19.6% in the 90-120k band.
Methodology & source. Based on 820 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.