Porsche Taycan MOT pass rate & common failures
The Porsche Taycan appears in 2,985 MOT tests spanning model years 2020–2023, and 91.9% of them passed. Against executive cars of a similar age (10.0% fail rate), the Taycan comes out 1.9pp better. Its most common failure areas are tyres, other defects and lighting & signalling.
What the MOT record shows
One area stands out: tyres, recorded in 6.9% of tests against 1.4% for the next-worst category.
At component level the recurring items are registration plates, tread depth and headlamp aim — registration plates alone was recorded 70 times.
Mileage matters less than usual here: the Taycan fails 7.8% of the time in the 0-30k band and 8.9% at 60-90k, a spread of only 1.1 points.
Tyres is the most common advisory, noted on 17.6% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 8.8% in 2023 to 7.1% in 2025, as the worst-kept examples leave the fleet.
How it compares
By model year
Every Taycan model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2020 | 1,956 | 92.1% | 7.9% | Tyres |
| 2021 | 814 | 90.9% | 9.1% | Tyres |
| 2022 | 199 | 94.0% | 6.0% | Tyres |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 6.9% | 206 |
| 2 | Other defects | 1.4% | 42 |
| 3 | Lighting & signalling | 0.5% | 14 |
| 4 | Brakes | 0.4% | 12 |
| 5 | Visibility | 0.4% | 11 |
| 6 | Seat belts & restraints | 0.3% | 8 |
| 7 | Road wheels | 0.2% | 5 |
| 8 | Suspension | 0.1% | 3 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Registration plates | 70 |
| 2 | Tread depth | 37 |
| 3 | Headlamp aim | 12 |
| 4 | Tyre pressure monitoring system | 10 |
| 5 | SRS malfunction indicator lamp | 7 |
| 6 | Washers | 5 |
| 7 | Wipers | 4 |
| 8 | Brake discs | 2 |
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 | 17.6% | 526 |
| 2 | Other defects | 3.9% | 116 |
| 3 | Visibility | 2.5% | 74 |
| 4 | Brakes | 1.5% | 46 |
| 5 | Road wheels | 0.6% | 17 |
| 6 | Suspension | 0.2% | 6 |
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 | 2,016 | 7.8% |
| 30-60k | 903 | 8.6% |
| 60-90k | 56 | 8.9% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 656 | 8.8% |
| 2024 | 1,055 | 8.9% |
| 2025 | 1,272 | 7.1% |
What to check before buying a Porsche Taycan
- Tyres (6.9% 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.
- Other defects (1.4% of tests): Miscellaneous items not in the main categories. Typical repair: varies.
- Lighting & signalling (0.5% 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
What is the MOT pass rate for the Porsche Taycan?
91.9% of the 2,985 Porsche Taycan MOT tests in this dataset passed, an 8.1% fail rate, across model years 2020–2023.
What does the Porsche Taycan most often fail its MOT on?
Tyres, recorded in 6.9% of tests, then other defects (1.4%).
How much does mileage affect Taycan MOT results?
Fail rates run at 7.8% for cars in the 0-30k band and 8.9% for 60-90k, a 1.1-point difference.
Methodology & source. Based on 2,985 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.