Renault Trafic Sl30 B-Ness+ MOT pass rate & common failures
2,013 MOT tests on the Renault Trafic Sl30 B-Ness+ (2019–2021) give it a 79.3% pass rate. All cars of a similar age fail 9.0% of the time, so this is 11.7pp worse than the group it competes with. Its most common failure areas are suspension, lighting & signalling and brakes.
What the MOT record shows
No single area dominates — suspension (7.2%) and lighting & signalling (7.0%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are brake pads, headlamp aim and shock absorbers — brake pads alone was recorded 121 times.
Mileage is the strongest signal on the record: 17.6% of 0-30k cars fail, rising to 25.0% once past 120-150k.
Tyres is the most common advisory, noted on 20.1% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 22.6% in 2023 to 19.1% in 2025, as the worst-kept examples leave the fleet.
How it compares
By model year
Every Trafic Sl30 B-Ness+ model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2019 | 50 | 74.0% | 26.0% | Suspension |
| 2020 | 940 | 80.7% | 19.3% | Suspension |
| 2021 | 1,023 | 78.3% | 21.7% | Lighting & signalling |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Suspension | 7.2% | 146 |
| 2 | Lighting & signalling | 7.0% | 140 |
| 3 | Brakes | 6.6% | 132 |
| 4 | Tyres | 5.4% | 109 |
| 5 | Visibility | 4.0% | 81 |
| 6 | Emissions & environmental | 3.2% | 65 |
| 7 | Body, structure & corrosion | 1.2% | 25 |
| 8 | Steering | 1.0% | 20 |
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 | 121 |
| 2 | Headlamp aim | 86 |
| 3 | Shock absorbers | 75 |
| 4 | Malfunction indicator lamp | 61 |
| 5 | Wipers | 44 |
| 6 | Washers | 40 |
| 7 | Tread depth | 34 |
| 8 | Stop lamp | 32 |
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 | 20.1% | 404 |
| 2 | Brakes | 19.8% | 399 |
| 3 | Suspension | 9.2% | 185 |
| 4 | Other defects | 6.4% | 128 |
| 5 | Visibility | 6.1% | 123 |
| 6 | Lighting & signalling | 5.5% | 110 |
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 | 227 | 17.6% |
| 30-60k | 712 | 20.6% |
| 60-90k | 692 | 20.9% |
| 90-120k | 293 | 21.5% |
| 120-150k | 80 | 25.0% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 358 | 22.6% |
| 2024 | 813 | 21.4% |
| 2025 | 826 | 19.1% |
What to check before buying a Renault Trafic Sl30 B-Ness+
- Suspension (7.2% 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.
- Lighting & signalling (7.0% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (6.6% 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.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
What is the MOT pass rate for the Renault Trafic Sl30 B-Ness+?
79.3% of the 2,013 Renault Trafic Sl30 B-Ness+ MOT tests in this dataset passed, a 20.7% fail rate, across model years 2019–2021.
What does the Renault Trafic Sl30 B-Ness+ most often fail its MOT on?
Suspension, recorded in 7.2% of tests, then lighting & signalling (7.0%).
How much does mileage affect Trafic Sl30 B-Ness+ MOT results?
Fail rates run at 17.6% for cars in the 0-30k band and 25.0% for 120-150k, a 7.4-point difference.
Methodology & source. Based on 2,013 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.