PORSCHE 911 MOT pass rate
92.2% of 117,520 PORSCHE 911 MOT tests pass.
The 911's pass rate of 92.2% is in line with the average across all PORSCHE models, at 91.8%.
The PORSCHE 911 passes its MOT 92.2% of the time — well above the national average for cars, which sits at 79.2%.
Own this PORSCHE 911?
This is the average across every PORSCHE 911 in the dataset. Look up your own registration for its actual MOT history, and a free place to keep its maintenance records.
How to check and keep your PORSCHE’s service history →
Pass rate by vehicle age
Pass rate declines noticeably with age, from 97.1% at 0–3 years to 88.5% at 15+ years.
| Vehicle age | Pass rate | Tests | Average mileage |
|---|---|---|---|
| 0–3 years | 97.1% | 993 | 9,217 miles |
| 3–6 years | 97.2% | 13,791 | 18,561 miles |
| 6–10 years | 97.2% | 22,745 | 27,187 miles |
| 10–15 years | 94.8% | 16,974 | 46,620 miles |
| 15+ years | 88.5% | 63,013 | 79,010 miles |
Common MOT failure reasons for the PORSCHE 911
The most common reason the PORSCHE 911 fails its MOT is lamps, reflectors and electrical equipment — present in 55.0% of failed tests, most often logged as "Not working".
| Category | Share of failed tests | Example |
|---|---|---|
| Lamps, reflectors and electrical equipment | 55.0% | Not working |
| Brakes | 20.8% | Excessively corroded |
| Tyres | 19.2% | Tread depth below requirements of 1.6mm |
| Noise, emissions and leaks | 16.3% | Lambda reading after 2nd fast idle outside specified limits |
| Suspension | 14.5% | Ball joint dust cover no longer prevents the ingress of dirt |
| Visibility | 12.7% | Does not clear the windscreen effectively |
| Body, chassis, structure | 10.9% | Constant velocity boot split or insecure, no longer prevents the ingress of dirt |
| Identification of the vehicle | 5.4% | Does not conform to the specified requirements |
| Steering | 2.8% | Gaiter missing or no longer prevents the ingress of dirt |
| Seat belts and supplementary restraint systems | 2.4% | Warning lamp indicates a fault |
Related PORSCHE models
- PORSCHE MACAN — 94.7% pass rate
- PORSCHE CAYENNE — 91.0% pass rate
- PORSCHE BOXSTER — 87.8% pass rate
- PORSCHE CAYMAN — 93.0% pass rate
- PORSCHE PANAMERA — 92.8% pass rate
- PORSCHE TAYCAN — 94.5% pass rate
Frequently asked questions
- What is the MOT pass rate for the PORSCHE 911?
- 92.2% of PORSCHE 911 MOT tests pass, based on 117,520 tests in the DVSA anonymised MOT tests and results dataset.
- What are the most common MOT failures for the PORSCHE 911?
- The most common reason the PORSCHE 911 fails its MOT is lamps, reflectors and electrical equipment — present in 55.0% of failed tests, most often logged as "Not working".
- Does this show the PORSCHE 911's service history?
- No — this is MOT test data, which covers roadworthiness, not servicing. A service history is a separate record of maintenance work, which a specific car only has if its owner has kept it. See the PORSCHE service history guide for how to check and keep one.