Porsche 911 MOT Failure Rate — 11-15 Years Old
Porsche 911 shows good reliability at this age, with a 10.0% failure rate — below the national average.
Component Risk Breakdown (11-15 Years)
Which parts of a 11-15-year-old Porsche 911 are most likely to cause an MOT failure:
How Does This Compare?
Porsche 911 MOT failure rate across all age groups:
| Age | Failure Rate | Tests | Worst Area |
|---|---|---|---|
| 0-2 years | 5.1% | 6,840 | Tyres |
| 3-5 years | 4.5% | 33,754 | Tyres |
| 6-10 years | 5.3% | 46,340 | Tyres |
| 11-15 years | 10.0% | 43,129 | Lamps & Electrics |
| 15+ years | 16.0% | 123,309 | Lamps & Electrics |
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Frequently Asked Questions
Is a 11-15 year old Porsche 911 reliable?
Yes. Based on 43,129 MOT tests, 11-15-year-old Porsche 911 vehicles have a 10.0% failure rate, which is below the UK average of 28%. This is a reliable choice at this age.
What are the common MOT failures on a 11-15 year old Porsche 911?
The most common MOT failure areas at this age are:
- Lamps & Electrics — 1.7% failure risk
- Tyres — 1.3% failure risk
- Body & Chassis — 0.9% failure risk
How can I prepare my Porsche 911 for its MOT?
For a 11-15-year-old Porsche 911, focus on: (1) Lamps & Electrics — the most common failure area at this age. (2) Check all lights and bulbs. (3) Inspect tyres for tread depth and damage. (4) Consider a pre-MOT check at a local garage (£20–£40). You can also use our free prediction tool for a personalised risk breakdown.
Other Porsche 911 Age Groups
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Data methodology: Failure rates are weighted averages across all mileage bands for the 11-15-year age group, calculated from official DVSA MOT test records. Only combinations with 100+ tests are included. Data covers 142 million MOT tests across the UK.
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