2015 Porsche 911 · 8,019 MOT tests
2015 Porsche 911 reliability
2015 Porsche 911s fail 4.2% of first MOT tests, 76% fewer MOT fails than the average car its age and mileage, ranking 2 of 25 911 years (8,019 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Porsche 911s: 10.4%)
- 4.2%
- first-time fail rate (all Porsche 911s: 10.4%)
- fails than cars of the same age and mileage
- 76% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 8
- 29,227
- typical miles at its MOT, aged about 8
- MOT tests, 2022 to 2024
- 8,019
- MOT tests, 2022 to 2024
Year on year
2015 against the years either side
- 2014 cars: 71% fewer MOT fails than the average car its age (the 2015 car does better)
- 2016 cars: 71% fewer MOT fails than the average car its age (the 2015 car does better)
- Strong point: tyres, 64% fewer fails than comparable cars.
- Plates: a 2015 car carries a 64 plate (January–February 2015), or a 15 plate (March–August 2015), or a 65 plate (September–December 2015).
Common problems
What fails on a 2015 Porsche 911
Fail rate by area
- Tyres1.5%
- Lights and electrics0.8%
- Windscreen, wipers and mirrors0.6%
- Suspension0.4%
- Brakes0.3%
- Exhaust, emissions and leaks0.3%
- Number plates and VIN0.3%
Average for cars of the same age and mileage
Top failures
Tyre cut reaching ply or cords 0.5%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Tyre tread below 1.6mm 0.36%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Tyre ply or cords exposed 0.27%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Windscreen washer fluid insufficient 0.26%
Washers are not supplying enough liquid, so the windscreen cannot be cleared properly, which is a safety issue.
Number plate does not meet standards 0.22%
The plate does not meet legal specifications, so it must be replaced with a compliant one before the car is driven.
Headlamp aim set too high 0.17%
Headlamps aimed too high can dazzle other drivers, and adjusting them is usually a quick job.
Common advisories
Tyre worn close to legal limit (4.18%) · Tyre slightly damaged or cracking (2.78%) · Nail in tyre, monitor (1.01%) · Brake pads wearing thin (0.94%) · Tyre has a shallow cut (0.74%) · Brake disc pitted or scored (0.62%)
Other years
Every Porsche 911 year
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Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2015 Porsche 911 reliable?
2015 Porsche 911s fail 4.2% of first MOT tests, 76% fewer MOT fails than the average car its age and mileage, ranking 2 of 25 911 years (8,019 DVSA tests, 2022 to 2024).
What fails on a 2015 Porsche 911 MOT?
Most often tyre cut reaching ply or cords (0.5% of tests), tyre tread below 1.6mm (0.36% of tests), tyre ply or cords exposed (0.27% of tests).
How many miles should a 2015 Porsche 911 have done?
At its MOT aged about 8, a typical 2015 Porsche 911 shows 29,227 miles. Much higher or lower is worth asking about.
What plate is a 2015 car?
A car first registered in 2015 carries a 64 plate (January–February 2015), or a 15 plate (March–August 2015), or a 65 plate (September–December 2015).
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