2018 DS Ds7 C-Back Pfrmnc Ln Bhdi Ss A — MOT failures & pass rate
1,173 MOT tests on the 2018 DS Ds7 C-Back Pfrmnc Ln Bhdi Ss A are in this dataset, and 83.8% of them passed. That is 5.3 percentage points worse than all cars of a similar age, which fail at 10.9%. Failures cluster in tyres, lighting & signalling and suspension.
What the MOT record shows
No single area dominates — tyres (5.5%) and lighting & signalling (5.4%) 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 79 times.
A 90-120k example is materially riskier than a 0-30k one: 23.3% versus 11.8%.
Advisories point at the next bill rather than this one: tyres was flagged on 24.6% of tests without failing them.
The trend is worsening — 12.4% of tests failed in 2021 against 14.9% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 5.5% | 65 |
| 2 | Lighting & signalling | 5.4% | 63 |
| 3 | Suspension | 4.1% | 48 |
| 4 | Brakes | 3.8% | 44 |
| 5 | Visibility | 2.6% | 31 |
| 6 | Emissions & environmental | 1.0% | 12 |
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 | 79 |
| 2 | Brake pads | 52 |
| 3 | Pins and bushes | 44 |
| 4 | Headlamp aim | 28 |
| 5 | Position lamp | 25 |
| 6 | Washers | 19 |
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 | 24.6% | 289 |
| 2 | Brakes | 20.0% | 235 |
| 3 | Other defects | 6.5% | 76 |
| 4 | Suspension | 5.3% | 62 |
| 5 | Visibility | 2.1% | 24 |
| 6 | Emissions & environmental | 1.5% | 17 |
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 | 254 | 11.8% |
| 30-60k | 679 | 16.8% |
| 60-90k | 210 | 18.6% |
| 90-120k | 30 | 23.3% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 241 | 12.4% |
| 2022 | 244 | 14.8% |
| 2023 | 238 | 20.2% |
| 2024 | 229 | 18.8% |
| 2025 | 221 | 14.9% |
What to check before buying a 2018 Ds7 C-Back Pfrmnc Ln Bhdi Ss A
On a 2018 Ds7 C-Back Pfrmnc Ln Bhdi Ss A, tyres is what the MOT record says goes wrong most — it appeared in 5.5% of tests. Check these areas before you commit.
- Tyres (5.5% 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 (5.4% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (4.1% 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.
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 2018 DS Ds7 C-Back Pfrmnc Ln Bhdi Ss As pass their MOT?
83.8% of the 1,173 2018 DS Ds7 C-Back Pfrmnc Ln Bhdi Ss A MOT tests in this dataset passed — a 16.2% fail rate.
What is the most common MOT failure on a 2018 DS Ds7 C-Back Pfrmnc Ln Bhdi Ss A?
Tyres, recorded in 5.5% of tests, followed by lighting & signalling (5.4%).
Does the 2018 Ds7 C-Back Pfrmnc Ln Bhdi Ss A get worse with mileage?
Its MOT fail rate rises from 11.8% in the 0-30k band to 23.3% in the 90-120k band.
Methodology & source. Based on 1,173 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.