2013 Toyota Iq — MOT failures & pass rate
The 2013 Toyota Iq passed 88.3% of its 7,337 recorded MOT tests. City cars of a similar age fail 19.1% of the time, so this is 7.4pp better than the group it competes with. Failures cluster in lighting & signalling, visibility and brakes.
What the MOT record shows
One area stands out: lighting & signalling, recorded in 7.5% of tests against 4.1% for the next-worst category.
At component level the recurring items are wipers, position lamp and headlamp — wipers alone was recorded 287 times.
Mileage is the strongest signal on the record: 7.2% of 0-30k cars fail, rising to 26.3% once past 150k — 3.7× the risk.
Brakes is the most common advisory, noted on 22.6% of tests — work that passed today but is likely due soon.
The trend is worsening — 9.1% of tests failed in 2021 against 14.0% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 7.5% | 551 |
| 2 | Visibility | 4.1% | 303 |
| 3 | Brakes | 4.0% | 293 |
| 4 | Tyres | 3.0% | 222 |
| 5 | Suspension | 1.9% | 139 |
| 6 | Emissions & environmental | 0.9% | 68 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 287 |
| 2 | Position lamp | 174 |
| 3 | Headlamp | 170 |
| 4 | Headlamp aim | 150 |
| 5 | Brake pads | 148 |
| 6 | Tread depth | 118 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Brakes | 22.6% | 1,657 |
| 2 | Tyres | 21.4% | 1,567 |
| 3 | Suspension | 6.8% | 499 |
| 4 | Lighting & signalling | 5.3% | 387 |
| 5 | Other defects | 4.7% | 343 |
| 6 | Body, structure & corrosion | 4.1% | 303 |
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 | 1,742 | 7.2% |
| 30-60k | 3,468 | 11.2% |
| 60-90k | 1,576 | 15.7% |
| 90-120k | 413 | 16.0% |
| 120-150k | 100 | 23.0% |
| 150k+ | 38 | 26.3% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 1,447 | 9.1% |
| 2022 | 1,475 | 12.0% |
| 2023 | 1,462 | 11.2% |
| 2024 | 1,479 | 12.3% |
| 2025 | 1,474 | 14.0% |
What to check before buying a 2013 Iq
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 7.5% of tests. Start there.
- Lighting & signalling (7.5% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (4.1% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
- Brakes (4.0% 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.
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 Toyota Iqs pass their MOT?
88.3% of the 7,337 2013 Toyota Iq MOT tests in this dataset passed — a 11.7% fail rate.
What is the most common MOT failure on a 2013 Toyota Iq?
Lighting & signalling, recorded in 7.5% of tests, followed by visibility (4.1%).
Does the 2013 Iq get worse with mileage?
Its MOT fail rate rises from 7.2% in the 0-30k band to 26.3% in the 150k+ band.
Methodology & source. Based on 7,337 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.