Porsche TAYCAN - 2021
48.1 faults per 100 tests
Year average for all cars of 2021 is 80.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche TAYCAN, model year 2021.
Sample size: 4,694 cars, 10,978 tests and 5,281 recorded faults.
0%
Less faults compared to the average car of same model year
Less faults compared to the average car of same model year
Quick summary
Total: 4,694 cars
The 2021 Porsche Taycan has a significantly lower overall defect rate, with 48 defects per 100 vehicles compared to the yearly average of 79 defects per 100, marking a reduction of nearly 39%. The model performs exceptionally well in several categories, particularly brakes and steering, where it has 3% and 0% defects respectively, compared to averages of 38% and 1%. It also shows fewer issues in visibility, lights and electrics, and body structure, indicating a strong reliability profile. Mileage trends suggest that defect rates tend to increase with higher mileage, but even in the highest mileage category, the Taycan remains competitive with only 36% defects.
Cars by mileage segment
Total: 4,694 cars
More model years for Porsche TAYCAN
Other models from Porsche
Categories
Brakes
▲ 92.3% better
3.1 faults / 100 tests
Year avg: 40.0 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake pipe damaged or excessively corroded
- Insufficient reserve travel
- Brake lining or pad: worn below 1.5mm
- Brake disc or drum: significantly and obviously worn
Steering
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 0.7 / 100 tests
- A steering ball joint: with excessive wear or free play
Visibility
▲ 60.0% better
5.8 faults / 100 tests
Year avg: 14.5 / 100 tests
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Windscreen or window excessively tinted: but not adversely affecting driver’s view
- Obligatory mirror or device: slightly damaged or loose
- Wiper blade: defective
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 83.9% better
1.8 faults / 100 tests
Year avg: 11.2 / 100 tests
- The aim of a headlamp is not within limits laid down in the requirements
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
- An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning
- The aim of a headlamp is not within limits laid down in the requirements
- A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Wheels & Suspension
▲ 3.1% better
84.6 faults / 100 tests
Year avg: 87.3 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
Body/Structure
▲ 95.2% better
0.1 faults / 100 tests
Year avg: 2.1 / 100 tests
- Fuel system: leaking, or missing or ineffective filler cap
- A body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or insecure
Equipment
▲ 66.7% better
0.5 faults / 100 tests
Year avg: 1.5 / 100 tests
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- Audible warning:
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- Seat belt buckle missing, damaged or not functioning as intended
Other
▲ 88.9% better
0.3 faults / 100 tests
Year avg: 2.7 / 100 tests
- Any part of the noise suppression system: insecure
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 3,131
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 369
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 312
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 311
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 229
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 228
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 136
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 74
A wheel: badly distorted or wear between wheel and hub at spigot mounting
ADVISORY
Occurrences: 54
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 49
Serious faults (Top 10)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 369
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 228
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 136
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 22
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 19
Tyre pressure monitoring system malfunctioning or obviously not working
FAIL
Occurrences: 14
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 13
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 11
Any fracture or welding defect on a wheel
FAIL
Occurrences: 6
An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 5