2009 Porsche 911 · 5,659 MOT tests
2009 Porsche 911 reliability
2009 Porsche 911s fail 9.7% of first MOT tests, 71% fewer MOT fails than the average car its age and mileage, ranking 8 of 25 911 years (5,659 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Porsche 911s: 10.4%)
- 9.7%
- first-time fail rate (all Porsche 911s: 10.4%)
- fails than cars of the same age and mileage
- 71% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 14
- 55,933
- typical miles at its MOT, aged about 14
- MOT tests, 2022 to 2024
- 5,659
- MOT tests, 2022 to 2024
Year on year
2009 against the years either side
- 2008 cars: 65% fewer MOT fails than the average car its age (the 2009 car does better)
- 2010 cars: 71% fewer MOT fails than the average car its age (the 2009 car does worse)
- Strong point: suspension, 88% fewer fails than comparable cars.
- Plates: a 2009 car carries a 58 plate (January–February 2009), or a 09 plate (March–August 2009), or a 59 plate (September–December 2009).
Common problems
What fails on a 2009 Porsche 911
Fail rate by area
- Lights and electrics2.9%
- Tyres2.6%
- Body, chassis and structure1.7%
- Suspension1.4%
- Brakes1.3%
- Exhaust, emissions and leaks1.1%
- Windscreen, wipers and mirrors0.6%
Average for cars of the same age and mileage
Top failures
CV joint boot split or insecure 1.18%
A split CV boot lets dirt in and grease out, so the joint wears and may need full replacement.
Headlamp aim set too high 1.06%
Headlamps aimed too high can dazzle other drivers, and adjusting them is usually a quick job.
Tyre ply or cords exposed 0.9%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Tyre cut reaching ply or cords 0.53%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Lambda reading outside specified limits 0.51%
An out-of-range lambda reading suggests poor fuel mixture or a failing catalytic converter, so diagnosis is needed.
Tyre tread below 1.6mm 0.48%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Common advisories
Tyre worn close to legal limit (6.45%) · Brake disc pitted or scored (5.2%) · Brake pipes corroded and greasy (4.4%) · Tyre slightly damaged or cracking (2.99%) · Suspension arm pin/bush showing wear (1.33%) · Suspension ball joint slight play (1.33%)
Other years
Every Porsche 911 year
The full picture: Porsche 911 reliability. Before you pay for any Porsche 911, a Full Check (£9.99) shows finance, stolen and write-off records the MOT can't.
Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2009 Porsche 911 reliable?
2009 Porsche 911s fail 9.7% of first MOT tests, 71% fewer MOT fails than the average car its age and mileage, ranking 8 of 25 911 years (5,659 DVSA tests, 2022 to 2024).
What fails on a 2009 Porsche 911 MOT?
Most often cv joint boot split or insecure (1.18% of tests), headlamp aim set too high (1.06% of tests), tyre ply or cords exposed (0.9% of tests).
How many miles should a 2009 Porsche 911 have done?
At its MOT aged about 14, a typical 2009 Porsche 911 shows 55,933 miles. Much higher or lower is worth asking about.
What plate is a 2009 car?
A car first registered in 2009 carries a 58 plate (January–February 2009), or a 09 plate (March–August 2009), or a 59 plate (September–December 2009).
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