2019 Porsche Boxster — MOT failures & pass rate
Across 3,786 MOT tests, the 2019 Porsche Boxster recorded a 95.8% pass rate. That is 4.3 percentage points better than coupes & convertibles of a similar age, which fail at 8.6%. Failures cluster in tyres, lighting & signalling and visibility.
What the MOT record shows
No single area dominates — tyres (3.2%) and lighting & signalling (0.9%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are tread depth, headlamp aim and registration plates — tread depth alone was recorded 59 times.
Condition tracks the odometer closely. Failures run at 3.8% in the 0-30k band and 12.9% in the 60-90k band, a 9.1-point spread — more than double.
Advisories point at the next bill rather than this one: tyres was flagged on 15.6% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 3.2% | 120 |
| 2 | Lighting & signalling | 0.9% | 35 |
| 3 | Visibility | 0.5% | 18 |
| 4 | Emissions & environmental | 0.3% | 10 |
| 5 | Other defects | 0.3% | 10 |
| 6 | Suspension | 0.2% | 7 |
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 | 59 |
| 2 | Headlamp aim | 23 |
| 3 | Registration plates | 15 |
| 4 | Washers | 12 |
| 5 | Tyre pressure monitoring system | 8 |
| 6 | Headlamp cleaning device | 8 |
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 | 15.6% | 591 |
| 2 | Other defects | 2.9% | 110 |
| 3 | Brakes | 2.0% | 75 |
| 4 | Visibility | 1.2% | 45 |
| 5 | Suspension | 0.6% | 22 |
| 6 | Emissions & environmental | 0.3% | 13 |
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 | 3,259 | 3.8% |
| 30-60k | 489 | 7.0% |
| 60-90k | 31 | 12.9% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 53 | 5.7% |
| 2022 | 972 | 4.0% |
| 2023 | 974 | 4.9% |
| 2024 | 876 | 3.5% |
| 2025 | 911 | 4.4% |
What to check before buying a 2019 Boxster
On a 2019 Boxster, tyres is what the MOT record says goes wrong most — it appeared in 3.2% of tests. Check these areas before you commit.
- Tyres (3.2% 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 (0.9% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (0.5% 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.
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 2019 Porsche Boxsters pass their MOT?
95.8% of the 3,786 2019 Porsche Boxster MOT tests in this dataset passed — a 4.3% fail rate.
What is the most common MOT failure on a 2019 Porsche Boxster?
Tyres, recorded in 3.2% of tests, followed by lighting & signalling (0.9%).
Does the 2019 Boxster get worse with mileage?
Its MOT fail rate rises from 3.8% in the 0-30k band to 12.9% in the 60-90k band.
Methodology & source. Based on 3,786 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.