2021 Porsche Taycan 4X2 — MOT failures & pass rate
1,921 MOT tests on the 2021 Porsche Taycan 4X2 are in this dataset, and 92.3% of them passed. All cars of a similar age fail 8.7% of the time, so this is 1.0pp better than the group it competes with. Failures cluster in tyres, lighting & signalling and visibility.
What the MOT record shows
One area stands out: tyres, recorded in 6.9% of tests against 0.9% for the next-worst category.
At component level the recurring items are tread depth, registration plates and headlamp aim — tread depth alone was recorded 77 times.
Mileage matters less than usual here: the 2021 Taycan 4X2 fails 6.1% of the time in the 0-30k band and 9.7% at 60-90k, a spread of only 3.6 points.
Tyres is the most common advisory, noted on 22.1% of tests — work that passed today but is likely due soon.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 6.9% | 132 |
| 2 | Lighting & signalling | 0.9% | 17 |
| 3 | Visibility | 0.5% | 10 |
| 4 | Other defects | 0.4% | 8 |
| 5 | Seat belts & restraints | 0.4% | 7 |
| 6 | Brakes | 0.3% | 5 |
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 | 77 |
| 2 | Registration plates | 14 |
| 3 | Headlamp aim | 12 |
| 4 | Tyre pressure monitoring system | 5 |
| 5 | Washers | 4 |
| 6 | Rear fog lamp | 3 |
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 | 22.1% | 424 |
| 2 | Other defects | 3.6% | 70 |
| 3 | Visibility | 1.9% | 37 |
| 4 | Brakes | 1.0% | 20 |
| 5 | Suspension | 0.5% | 10 |
| 6 | Road wheels | 0.5% | 10 |
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 | 1,110 | 6.1% |
| 30-60k | 733 | 9.8% |
| 60-90k | 72 | 9.7% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 956 | 8.6% |
| 2025 | 957 | 6.8% |
What to check before buying a 2021 Taycan 4X2
The failure pattern for this year is specific enough to inspect against: tyres accounted for 6.9% of tests. Start there.
- 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.
- 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 2021 Porsche Taycan 4X2s pass their MOT?
92.3% of the 1,921 2021 Porsche Taycan 4X2 MOT tests in this dataset passed — a 7.6% fail rate.
What is the most common MOT failure on a 2021 Porsche Taycan 4X2?
Tyres, recorded in 6.9% of tests, followed by lighting & signalling (0.9%).
Does the 2021 Taycan 4X2 get worse with mileage?
Its MOT fail rate rises from 6.1% in the 0-30k band to 9.7% in the 60-90k band.
Methodology & source. Based on 1,921 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.