Porsche 911 Turbo S S-A
From 1,839 MOT tests. Above average for its class.
Common MOT failure categories
Pass rate by registration year
Newer 911 Turbo S S-As fare better: 2021 models pass at 97.3% vs 94.4% for 2020.
What goes wrong?
The most common MOT failure reasons are a tyre seriously damaged, number plate does not conform to the specified requirements and emissions levels exceed default limits. The top issue, a tyre seriously damaged, caused 14 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.
| a tyre seriously damaged | 14 |
| number plate does not conform to the specified requirements | 12 |
| emissions levels exceed default limits | 11 |
| tyre tread depth not in accordance with the requirements | 10 |
| lambda coefficient outside the default limits or the range specified by the manufacturer | 8 |
| number plate missing or so insecure that it is likely to fall off | 6 |
| emission control equipment fitted by the manufacturer missing, obviously modified or obviously defective | 5 |
| engine mil illuminated indicating a malfunction | 5 |
| a transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc | 3 |
| fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users | 3 |
By registration year
| Year | Pass rate | Top failures |
|---|---|---|
| 2021 | 97.3% | number plate does not conform to the specified requirements, a tyre seriously damaged |
| 2020 | 94.4% | emissions levels exceed default limits, tyre tread depth not in accordance with the requirements |
Typical mileage
Half of all 911 Turbo S S-As tested had between 7,313 and 18,589 miles on the clock. Relatively low mileage overall. Many are still fairly young.
At 18,589 median miles, the 911 Turbo S S-A has 0.022 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 911 Turbo S S-A MOT pass rate?
The Porsche 911 Turbo S S-A has a 95.9% MOT pass rate based on 1,839 real MOT tests. This is above the national average.
What are common MOT failures on a Porsche 911 Turbo S S-A?
The most common MOT failure on the Porsche 911 Turbo S S-A is a tyre seriously damaged, which caused 14 failures. Other common issues include number plate does not conform to the specified requirements.
What is the typical mileage of a Porsche 911 Turbo S S-A at MOT?
The median mileage at MOT for a Porsche 911 Turbo S S-A is 18,589 miles. The middle 50% of vehicles tested have between 7,313 and 18,589 miles.
Buying a used 911 Turbo S S-A?
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.