2020 DS Ds7 C-Back Pfrmnc Ln Bhdi Ss A — MOT failures & pass rate
Across 305 MOT tests, the 2020 DS Ds7 C-Back Pfrmnc Ln Bhdi Ss A recorded an 85.6% pass rate. All cars of a similar age fail 9.4% of the time, so this is 5.1pp worse than the group it competes with. Failures cluster in tyres, lighting & signalling and brakes.
What the MOT record shows
No single area dominates — tyres (5.6%) and lighting & signalling (4.6%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are tread depth, brake pads and pins and bushes — tread depth alone was recorded 8 times.
Condition tracks the odometer closely. Failures run at 8.3% in the 0-30k band and 16.7% in the 60-90k band, a 8.4-point spread — more than double.
Tyres is the most common advisory, noted on 28.5% of tests — work that passed today but is likely due soon.
The trend is worsening — 12.5% of tests failed in 2023 against 14.6% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 5.6% | 17 |
| 2 | Lighting & signalling | 4.6% | 14 |
| 3 | Brakes | 3.6% | 11 |
| 4 | Suspension | 2.6% | 8 |
| 5 | Visibility | 2.0% | 6 |
| 6 | Body, structure & corrosion | 1.3% | 4 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Tread depth | 8 |
| 2 | Brake pads | 8 |
| 3 | Pins and bushes | 7 |
| 4 | Position lamp | 6 |
| 5 | Headlamp aim | 6 |
| 6 | Daytime running lamps | 6 |
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 | 28.5% | 87 |
| 2 | Brakes | 18.7% | 57 |
| 3 | Other defects | 7.2% | 22 |
| 4 | Visibility | 5.6% | 17 |
| 5 | Body, structure & corrosion | 5.3% | 16 |
| 6 | Suspension | 2.6% | 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 | 97 | 8.3% |
| 30-60k | 160 | 18.1% |
| 60-90k | 42 | 16.7% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 96 | 12.5% |
| 2024 | 104 | 16.4% |
| 2025 | 103 | 14.6% |
What to check before buying a 2020 Ds7 C-Back Pfrmnc Ln Bhdi Ss A
The failure pattern for this year is specific enough to inspect against: tyres accounted for 5.6% of tests. Start there.
- Tyres (5.6% 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 (4.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (3.6% 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
How many 2020 DS Ds7 C-Back Pfrmnc Ln Bhdi Ss As pass their MOT?
85.6% of the 305 2020 DS Ds7 C-Back Pfrmnc Ln Bhdi Ss A MOT tests in this dataset passed — a 14.4% fail rate.
What is the most common MOT failure on a 2020 DS Ds7 C-Back Pfrmnc Ln Bhdi Ss A?
Tyres, recorded in 5.6% of tests, followed by lighting & signalling (4.6%).
Does the 2020 Ds7 C-Back Pfrmnc Ln Bhdi Ss A get worse with mileage?
Its MOT fail rate rises from 8.3% in the 0-30k band to 16.7% in the 60-90k band.
Methodology & source. Based on 305 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.