2021 Renault Trafic Sh30 B-Ness+ — MOT failures & pass rate
Across 276 MOT tests, the 2021 Renault Trafic Sh30 B-Ness+ recorded a 93.5% pass rate. All cars of a similar age fail 8.4% of the time, so this is 1.9pp better than the group it competes with. Failures cluster in suspension, brakes and lighting & signalling.
What the MOT record shows
No single area dominates — suspension (3.3%) and brakes (2.9%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are brake pads, shock absorbers and linkage ball joints — brake pads alone was recorded 7 times.
Advisories point at the next bill rather than this one: brakes was flagged on 15.9% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Suspension | 3.3% | 9 |
| 2 | Brakes | 2.9% | 8 |
| 3 | Lighting & signalling | 1.5% | 4 |
| 4 | Emissions & environmental | 1.1% | 3 |
| 5 | Visibility | 0.4% | 1 |
| 6 | Steering | 0.4% | 1 |
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 | 7 |
| 2 | Shock absorbers | 6 |
| 3 | Linkage ball joints | 4 |
| 4 | Headlamp aim | 4 |
| 5 | Malfunction indicator lamp | 2 |
| 6 | Engine oil leaks | 1 |
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 | 15.9% | 44 |
| 2 | Tyres | 5.1% | 14 |
| 3 | Suspension | 4.0% | 11 |
| 4 | Visibility | 1.1% | 3 |
| 5 | Other defects | 1.1% | 3 |
| 6 | Body, structure & corrosion | 0.7% | 2 |
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 | 173 | 4.6% |
| 30-60k | 78 | 6.4% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 121 | 8.3% |
| 2025 | 127 | 6.3% |
What to check before buying a 2021 Trafic Sh30 B-Ness+
On a 2021 Trafic Sh30 B-Ness+, suspension is what the MOT record says goes wrong most — it appeared in 3.3% of tests. Check these areas before you commit.
- Suspension (3.3% 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.
- Brakes (2.9% 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.
- Lighting & signalling (1.5% 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 2021 Renault Trafic Sh30 B-Ness+s pass their MOT?
93.5% of the 276 2021 Renault Trafic Sh30 B-Ness+ MOT tests in this dataset passed — a 6.5% fail rate.
What is the most common MOT failure on a 2021 Renault Trafic Sh30 B-Ness+?
Suspension, recorded in 3.3% of tests, followed by brakes (2.9%).
Does the 2021 Trafic Sh30 B-Ness+ get worse with mileage?
Its MOT fail rate rises from 4.6% in the 0-30k band to 6.4% in the 30-60k band.
Methodology & source. Based on 276 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.