2012 Porsche 911: common problems and what to check
What gets flagged at MOT on 2012 Porsche 911s, from 1,545 tests in 2025, plus known faults and what to look at before you buy one.
What gets flagged at MOT
The share of 2012 Porsche 911 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres14% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Brakes7% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Suspension6% of testsRough price £120–£400
At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.
- Lights and electrics3% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Wipers, windscreen and mirrors3% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Oil and fluid leaks1% of testsRough price £80–£600
At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.
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Other years
| Year | MOT tests | Most flagged |
|---|---|---|
| 2022 | 2,573 | Tyres 11% |
| 2021 | 1,691 | Tyres 12% |
| 2020 | 1,508 | Tyres 14% |
| 2019 | 2,302 | Tyres 16% |
| 2018 | 2,149 | Tyres 14% |
| 2017 | 1,886 | Tyres 14% |
| 2016 | 1,708 | Tyres 15% |
| 2015 | 1,740 | Tyres 15% |
| 2014 | 1,533 | Tyres 13% |
| 2013 | 1,279 | Tyres 13% |
| 2011 | 1,310 | Tyres 13% |
| 2010 | 1,731 | Tyres 15% |
| 2009 | 1,474 | Brakes 13% |
| 2008 | 1,813 | Tyres 15% |
| 2007 | 2,429 | Tyres 15% |
| 2006 | 2,704 | Brakes 18% |
| 2005 | 2,750 | Brakes 20% |
| 2004 | 2,435 | Brakes 19% |
| 2003 | 2,534 | Brakes 20% |
| 2002 | 2,347 | Brakes 23% |
| 2001 | 1,465 | Brakes 23% |
| 2000 | 912 | Brakes 23% |
Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2012 Porsche 911s registered in 2012. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score