Porsche 911 - 2022
17.3 faults per 100 tests
Year average for all cars of 2022 is 71.1 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche 911, model year 2022.
Sample size: 1,944 cars, 2,881 tests and 497 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: 1,944 cars
The 2022 Porsche 911 demonstrates a significantly lower overall defect rate compared to the average car of the same year, with 17 defects per 100 vehicles compared to 70. This represents a 75% improvement over the average. The model excels particularly in categories such as brakes, visibility, and lights and electrics, where its defect rates are much lower than average. However, it does show a slight increase in issues related to steering, which is somewhat above the average. Mileage trends indicate that the model has higher defect rates in the lower mileage ranges compared to the average, which typically increases with mileage.
Cars by mileage segment
Total: 1,944 cars
Categories
Brakes
▲ 96.8% better
1.0 faults / 100 tests
Year avg: 31.2 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake disc or drum: significantly and obviously worn
- Brakes imbalance across an axle such that: the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle. Or in the case of testing on the road, the vehicle deviates excessively from a straight lin
- Brake lining or pad: worn below 1.5mm
- Excessive fluctuation in brake effort through each wheel revolution
Steering
▼ 50.0% worse
0.6 faults / 100 tests
Year avg: 0.4 / 100 tests
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
Visibility
▲ 75.2% better
3.1 faults / 100 tests
Year avg: 12.5 / 100 tests
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Obligatory mirror or device: slightly damaged or loose
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Windscreen or window excessively tinted: but not adversely affecting driver’s view
Lights & Electrics
▲ 89.0% better
1.2 faults / 100 tests
Year avg: 10.9 / 100 tests
- A lamp: not securely attached
- A lamp: likely to become detached
- The aim of a headlamp is not within limits laid down in the requirements
- which shows red light to the front, white light to the rear or has heavily reduced light intensity
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has only one lamp or all lamps not working
Wheels & Suspension
▲ 66.5% better
27.5 faults / 100 tests
Year avg: 82.0 / 100 tests
- 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
- Tyre tread depth not in accordance with the requirements
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
- Tyre tread depth not in accordance with the requirements
Body/Structure
▲ 81.3% better
0.3 faults / 100 tests
Year avg: 1.6 / 100 tests
- A transmission shaft constant velocity joint boot: severely deteriorated
- A main load-bearing structural member: fractured or deformed such that structural rigidity is significantly reduced
- A body panel or body component: likely to become detached
Equipment
▲ 84.6% better
0.2 faults / 100 tests
Year avg: 1.3 / 100 tests
- A seat belt:
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 76.2% better
0.5 faults / 100 tests
Year avg: 2.1 / 100 tests
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- Any part of the noise suppression system: insecure
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: 193
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 108
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 37
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 36
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 22
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 13
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 11
Steering rack gaiter or ball joint dust cover: damaged or deteriorated
MINOR
Occurrences: 9
The aim of a headlamp is not within limits laid down in the requirements
PRS
Occurrences: 8
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 5
Serious faults (Top 10)
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 22
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 13
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 11
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 3
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 3
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 1
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 1
Beam image obviously incorrect
FAIL
Occurrences: 1
An obvious leak from any part of the system
FAIL
Occurrences: 1
A rear registration plate lamp or light source missing or inoperative: when rear registration plate has only one lamp or all lamps not working
FAIL
Occurrences: 1