2017 Renault Koleos — MOT failures & pass rate
3,809 MOT tests on the 2017 Renault Koleos are in this dataset, and 86.6% of them passed. That is effectively the same as all cars of a similar age (12.7% fail rate), so the MOT record here is unremarkable in either direction. Failures cluster in brakes, tyres and lighting & signalling.
What the MOT record shows
No single area dominates — brakes (4.2%) and tyres (4.2%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are brake pads, ball joint and wipers — brake pads alone was recorded 180 times.
A 120-150k example is materially riskier than a 0-30k one: 18.9% versus 7.0%.
Brakes is the most common advisory, noted on 24.2% of tests — work that passed today but is likely due soon.
The trend is worsening — 10.7% of tests failed in 2021 against 15.2% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Brakes | 4.2% | 160 |
| 2 | Tyres | 4.2% | 158 |
| 3 | Lighting & signalling | 3.5% | 135 |
| 4 | Suspension | 3.4% | 129 |
| 5 | Visibility | 2.7% | 104 |
| 6 | Steering | 1.9% | 74 |
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 | 180 |
| 2 | Ball joint | 119 |
| 3 | Wipers | 91 |
| 4 | Tread depth | 88 |
| 5 | Headlamp aim | 81 |
| 6 | Headlamp | 58 |
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 | 24.2% | 922 |
| 2 | Tyres | 23.8% | 905 |
| 3 | Other defects | 19.8% | 755 |
| 4 | Suspension | 10.0% | 379 |
| 5 | Steering | 4.1% | 157 |
| 6 | Visibility | 2.9% | 111 |
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 | 612 | 7.0% |
| 30-60k | 2,023 | 12.6% |
| 60-90k | 966 | 17.6% |
| 90-120k | 162 | 20.4% |
| 120-150k | 37 | 18.9% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 737 | 10.7% |
| 2022 | 758 | 11.2% |
| 2023 | 769 | 14.4% |
| 2024 | 773 | 15.1% |
| 2025 | 772 | 15.2% |
What to check before buying a 2017 Koleos
The failure pattern for this year is specific enough to inspect against: brakes accounted for 4.2% of tests. Start there.
- Brakes (4.2% 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.
- Tyres (4.2% 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 (3.5% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
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 Renault Koleoss pass their MOT?
86.6% of the 3,809 2017 Renault Koleos MOT tests in this dataset passed — a 13.4% fail rate.
What is the most common MOT failure on a 2017 Renault Koleos?
Brakes, recorded in 4.2% of tests, followed by tyres (4.2%).
Does the 2017 Koleos get worse with mileage?
Its MOT fail rate rises from 7.0% in the 0-30k band to 18.9% in the 120-150k band.
Methodology & source. Based on 3,809 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.