2020 Porsche 911 Turbo S S-a MOT Pass Rate
Pass rate for 911 Turbo S S-a models manufactured in 2020, based on 983 real MOT test results.
Data from official DVSA MOT testing records
This page shows all 911 Turbo S S-a cars tested in 2020. Want to see how cars built in 2020 hold up over time?
View 2020 Porsche 911 Turbo S S-a vintage page → (93.9% current pass rate)2020 Porsche 911 Turbo S S-a MOT Analysis
The 2020 Porsche 911 Turbo S S-a has an MOT pass rate of 94.5% based on 983 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 12,937 miles on the odometer. With a 5.5% failure rate, the 2020 911 Turbo S S-a is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2020 Porsche 911 Turbo S S-a is Tyres, responsible for 4.5% of failures. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs range from £50–200 per tyre. Noise, emissions and leaks is the second most common issue at 2.7%. Identification of the vehicle follows at 2.0%.
Top failures specific to 2020 models only. The overall 911 Turbo S S-a page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Tyres | 4.5% | 44 |
| 2 | Noise, Emissions And Leaks | 2.7% | 27 |
| 3 | Identification Of The Vehicle | 2.0% | 20 |
| 4 | Lamps, Reflectors And Electrical Equipment | 0.4% | 4 |
| 5 | Brakes | 0.1% | 1 |
Failures per 10,000 Miles
avg. 12,937 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 |
|---|---|---|---|
| Tyres | 3.46 | 4.5% | 44 |
| Noise, emissions and leaks | 2.12 | 2.7% | 27 |
| Identification of the vehicle | 1.57 | 2.0% | 20 |
| Lamps & Electrical | 0.31 | 0.4% | 4 |
| Brakes | 0.08 | 0.1% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2020 Porsche 911 Turbo S S-a has an MOT pass rate of 94.5% based on 983 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 12,937 miles on the odometer. With a 5.5% failure rate, the 2020 911 Turbo S S-a is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2020 Porsche 911 Turbo S S-a, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to tyres: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating. With relatively low average mileage of 12,937 miles, many of these vehicles are still in good mechanical condition.
Tyres — 4.5% of failures
Tyres issues account for 4.5% of MOT failures on 2020 Porsche 911 Turbo S S-a models. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Noise, emissions and leaks — 2.7% of failures
Noise, emissions and leaks issues account for 2.7% of MOT failures on 2020 Porsche 911 Turbo S S-a models. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.
Identification of the vehicle — 2.0% of failures
Identification of the vehicle issues account for 2.0% of MOT failures on 2020 Porsche 911 Turbo S S-a models. Identification failures relate to the Vehicle Identification Number (VIN) and registration plate. The VIN must be permanently displayed and legible, and the registration plate must meet British Standard formatting. Typical repair costs: £10–50. Pre-MOT check: Ensure the VIN plate is visible and legible (usually in the windscreen or under the bonnet). Check that number plates are clean, undamaged, and use the correct font and spacing.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.