2021 Peugeot 108 — MOT failures & pass rate
8,805 MOT tests on the 2021 Peugeot 108 are in this dataset, and 93.5% of them passed. City cars of a similar age fail at 6.6%, so the 2021 108 sits squarely on the average. Failures cluster in tyres, visibility and brakes.
What the MOT record shows
No single area dominates — tyres (3.3%) and visibility (2.1%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are headlamp aim, wipers and brake pads — headlamp aim alone was recorded 122 times.
Mileage is the strongest signal on the record: 5.7% of 0-30k cars fail, rising to 20.0% once past 60-90k — 3.5× the risk.
Advisories point at the next bill rather than this one: tyres was flagged on 16.7% of tests without failing them.
The trend is worsening — 4.9% of tests failed in 2023 against 7.5% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 3.3% | 290 |
| 2 | Visibility | 2.1% | 181 |
| 3 | Brakes | 1.9% | 168 |
| 4 | Lighting & signalling | 1.7% | 146 |
| 5 | Suspension | 0.5% | 42 |
| 6 | Seat belts & restraints | 0.1% | 8 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 122 |
| 2 | Wipers | 118 |
| 3 | Brake pads | 101 |
| 4 | Brake discs | 79 |
| 5 | Tread depth | 70 |
| 6 | Headlamp | 56 |
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 | 16.7% | 1,474 |
| 2 | Brakes | 11.9% | 1,051 |
| 3 | Suspension | 4.0% | 351 |
| 4 | Other defects | 4.0% | 348 |
| 5 | Visibility | 2.4% | 209 |
| 6 | Lighting & signalling | 1.0% | 87 |
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 | 7,663 | 5.7% |
| 30-60k | 1,088 | 11.5% |
| 60-90k | 50 | 20.0% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 185 | 4.9% |
| 2024 | 4,210 | 5.4% |
| 2025 | 4,404 | 7.5% |
What to check before buying a 2021 108
On a 2021 108, tyres is what the MOT record says goes wrong most — it appeared in 3.3% of tests. Check these areas before you commit.
- Tyres (3.3% 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.
- Visibility (2.1% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
- Brakes (1.9% 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.
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 Peugeot 108s pass their MOT?
93.5% of the 8,805 2021 Peugeot 108 MOT tests in this dataset passed — a 6.5% fail rate.
What is the most common MOT failure on a 2021 Peugeot 108?
Tyres, recorded in 3.3% of tests, followed by visibility (2.1%).
Does the 2021 108 get worse with mileage?
Its MOT fail rate rises from 5.7% in the 0-30k band to 20.0% in the 60-90k band.
Methodology & source. Based on 8,805 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.