Porsche Unclassified
From 640 MOT tests. Above average for its class.
Common MOT failure categories
What goes wrong?
The most common MOT failure reasons are the aim of a headlamp is not within limits laid down in the requirements, tyre tread depth not in accordance with the requirements, a lamp missing and inoperative or in the case of a multiple light source more than 1/2 not functioning. The top issue, the aim of a headlamp is not within limits laid down in the requirements, caused 25 failures in 2024. Checking tread depth (1.6mm legal minimum, 3mm recommended) before your test can save an unnecessary fail. You can check prices at Black Circles if you need replacements. If you need repairs before retesting, sites like BookMyGarage let you compare local prices.
| the aim of a headlamp is not within limits laid down in the requirements | 25 |
| tyre tread depth not in accordance with the requirements | 14 |
| a lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 12 |
| windscreen washers not working or not providing sufficient fluid to clear the windscreen | 11 |
| 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 | 10 |
| parking brake efficiency below minimum requirement | 9 |
| a headlamp or light source missing, inoperative or more than ½ not functioning in the case of led | 9 |
| lamp emitted colour, position or intensity not in accordance with the requirements | 8 |
| lambda coefficient outside the default limits or the range specified by the manufacturer | 7 |
| brake pipe damaged or excessively corroded | 7 |
How serious are these failures?
Not all MOT failures are equal. Only 14.3% of Unclassified failures are serious (safety or roadside), below the 44.4% average. When this car fails its MOT, it's more likely to be lights, wipers, or emissions than something dangerous. When it does fail, the average repair bill is around £64.
Typical mileage
Half of all Unclassifieds tested had between 38,754 and 102,021 miles on the clock. A significant number are high-mileage vehicles.
At 57,551 median miles, the Unclassified has 0.024 failures per 10,000 miles driven.
Other Porsche models
| Porsche 911 | 90.7% |
| Porsche Macan | 93.6% |
| Porsche Cayenne | 89.5% |
| Porsche Boxster | 86.8% |
| Porsche Cayman | 92.1% |
Common questions
What is the Porsche Unclassified MOT pass rate?
The Porsche Unclassified has a 86.1% MOT pass rate based on 640 real MOT tests. This is above the national average.
What are common MOT failures on a Porsche Unclassified?
The most common MOT failure on the Porsche Unclassified is the aim of a headlamp is not within limits laid down in the requirements, which caused 25 failures. Other common issues include tyre tread depth not in accordance with the requirements.
What is the typical mileage of a Porsche Unclassified at MOT?
The median mileage at MOT for a Porsche Unclassified is 57,551 miles. The middle 50% of vehicles tested have between 38,754 and 102,021 miles.
Buying a used Unclassified?
Start with the free tools. Look up the specific vehicle's MOT history on GOV.UK The mileage at each test will show if it's been wound back, and the advisory history tells you what's wearing. Cross-reference that against the typical failures above to see if anything looks unusual for this model.
The free data won't tell you about outstanding finance, theft markers, or write-off history. For that, you need a vehicle history check This is especially important on a private sale where you have fewer legal protections.
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MOT data from DVSA anonymised test results, 2024 test year. Fleet data from DfT vehicle licensing statistics. Crown copyright, OGL v3.0. MOT pass rates are statistical summaries of test outcomes, not assessments of individual vehicle safety or condition. Always inspect a vehicle and check its full MOT history before purchasing. See terms of use.