Porsche 911 Turbo Coupe MOT Pass Rate
Overall pass rate across all manufacture years, based on 39 real MOT test results. Failure rate: 25.6%.
Data from official DVSA MOT testing records
Porsche 911 Turbo Coupe MOT Reliability Overview
The Porsche 911 Turbo Coupe is a rare vehicle in the UK, with 39 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 74.4% and a failure rate of 25.6%, which is above the UK average of approximately 37%.
Based on this data, the Porsche 911 Turbo Coupe earns a "Very Good" reliability rating. The average Porsche 911 Turbo Coupe presents for MOT with approximately 49,002 miles on the clock.
The most common MOT failure for the Porsche 911 Turbo Coupe is Lamps, Reflectors and Electrical Equipment, affecting 25.6% of all tests. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. The second most common issue is Driver's View of the Road at 17.9%. Brakes rounds out the top three at 12.8%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Lamps, Reflectors And Electrical Equipment | 28.2% | 11 |
| 2 | Suspension | 28.2% | 11 |
| 3 | Driver's View Of The Road | 20.5% | 8 |
| 4 | Brakes | 20.5% | 8 |
| 5 | Seat Belts And Supplementary Restraint Systems | 5.1% | 2 |
| 6 | Exhaust, Fuel And Emissions | 5.1% | 2 |
| 7 | Steering | 2.6% | 1 |
| 8 | Body, Structure And General Items | 2.6% | 1 |
| 9 | Registration Plates And Vin | 2.6% | 1 |
Failures per 10,000 Miles
avg. 49,002 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Lamps & Electrical | 5.76 | 28.2% | 11 |
| Suspension | 5.76 | 28.2% | 11 |
| Visibility | 4.19 | 20.5% | 8 |
| Brakes | 4.19 | 20.5% | 8 |
| Seat Belts | 1.05 | 5.1% | 2 |
| Emissions & Exhaust | 1.05 | 5.1% | 2 |
| Steering | 0.52 | 2.6% | 1 |
| Body & Structure | 0.52 | 2.6% | 1 |
| Registration Plates and VIN | 0.52 | 2.6% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Porsche 911 Turbo Coupe has 49,002 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Porsche 911 Turbo Coupe has a mileage-adjusted failure rate of 5.22% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Porsche 911 Turbo Coupe MOT Data
The Porsche 911 Turbo Coupe is a rare vehicle in the UK, with 39 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 74.4% and a failure rate of 25.6%, which is above the UK average of approximately 37%.
For Porsche 911 Turbo Coupe owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on lamps, reflectors and electrical equipment and driver's view of the road for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific 911 Turbo Coupe is likely to perform.
Lamps, Reflectors and Electrical Equipment — 25.6% of failures
Lamps, Reflectors and Electrical Equipment issues account for 25.6% of MOT failures on the Porsche 911 Turbo Coupe. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Driver's View of the Road — 17.9% of failures
Driver's View of the Road issues account for 17.9% of MOT failures on the Porsche 911 Turbo Coupe. Driver's View of the Road issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Brakes — 12.8% of failures
Brakes issues account for 12.8% of MOT failures on the Porsche 911 Turbo Coupe. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Frequently Asked Questions
What is the MOT pass rate for the Porsche 911 Turbo Coupe?
Based on 39 (based on limited data) MOT tests in our database, the Porsche 911 Turbo Coupe has an overall pass rate of 74.4% (25.6% fail rate).
What are the most common MOT failures on a Porsche 911 Turbo Coupe?
The top 3 reasons a Porsche 911 Turbo Coupe fails its MOT are: 1. Lamps, Reflectors and Electrical Equipment (25.6%), 2. Driver's View of the Road (17.9%), 3. Brakes (12.8%). Check these areas before booking your MOT.
Is the Porsche 911 Turbo Coupe reliable?
With a 25.6% MOT failure rate, the 911 Turbo Coupe is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Porsche 911 Turbo Coupe?
Based on failure data, focus on: Lamps, Reflectors and Electrical Equipment (25.6%); Driver's View of the Road (17.9%); Brakes (12.8%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.