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MOT reliability

Porsche 911 turbo

638 vehicles · 1,285 completed MOT tests analysed
85%
MOT pass rate

Based on 638 Porsche 911 turbo vehicles and 1,285 completed MOT tests, the Porsche 911 turbo has an overall 85% pass rate, with an average recorded mileage of 60,905 miles.

638
Vehicles
1,285
MOT tests
2,442
Avg miles / year
0.8
Faults per test
1%
Dangerous-fault share

Porsche 911 turbo problem areas

Where faults occur most across all Porsche 911 turbo MOT tests:

  • Other82%
  • Tyres, wheels & suspension12%
  • Brakes10%
  • Emissions & nuisance6%
  • Lamps & electrical4%
  • Steering3%
  • Body & structure2%
  • Visibility1%

Porsche 911 turbo pass rate by age

How the Porsche 911 turbo's MOT pass rate changes as it ages (buckets with 20+ tests).

Age (years)TestsPass rate
1475%
2771%
34480%
44384%
54785%
64493%
74193%
84689%
94088%
105277%
114896%
124482%
134092%
145180%
153882%
164875%
174185%
184783%
194082%
203781%

Fuel types: Petrol (556), LPG (55), Other (24), Diesel (2), Gas Bi-Fuel (1)

Most common Porsche 911 turbo MOT faults

These are the faults and advisories recorded most often across Porsche 911 turbo MOT tests:

  1. Nearside Rear Tyre worn close to the legal limit (4.1.E.1) (26 times)
  2. Offside Rear Tyre worn close to the legal limit (4.1.E.1) (25 times)
  3. Offside Front Tyre worn close to the legal limit (4.1.E.1) (18 times)
  4. Under-trays fitted obscuring some underside components (17 times)
  5. Offside Front Brake pipe slightly corroded (3.6.B.2c) (14 times)
  6. Oil leak (13 times)
  7. Nearside Front Tyre worn close to the legal limit (4.1.E.1) (13 times)
  8. Oil leak, but not excessive (8.4.1 (a) (i)) (12 times)
  9. Offside Front position lamp(s) not working (1.1.A.3b) (9 times)
  10. Nearside Headlamp aim too high (1.8) (8 times)
  11. Nearside Rear Tyre tread depth below requirements of 1.6mm (4.1.E.1) (8 times)
  12. Offside Rear Tyre tread depth below requirements of 1.6mm (4.1.E.1) (8 times)
  13. Offside Headlamp aim too high (1.8) (8 times)
  14. Parking brake: efficiency below requirements (3.7.B.7) (7 times)
  15. Offside Rear wheel bearing has slight play (2.6.2) (7 times)

Porsche 911 turbo pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2016 2 8 100% 81,060
2014 2 4 75% 66,948
2011 2 22 95% 21,210
2010 3 44 86% 48,421
2008 8 106 90% 42,891
2007 4 46 85% 59,578
2006 11 133 83% 64,410
2005 1 17 88% 37,324
2004 2 27 81% 54,869
2003 11 48 94% 38,946
2002 12 96 89% 58,621
2001 4 60 80% 61,183
2000 6 46 96% 33,593
1999 1 14 71% 81,054
1998 4 11 73% 87,897
1997 7 57 86% 69,991
1996 5 32 75% 43,124
1995 7 42 88% 61,516
1994 5 27 74% 54,945
1993 6 13 92% 54,163
1992 1 1 100% 28,054
1991 4 29 72% 91,098
1990 2 24 92% 68,833
1989 6 29 83% 54,797
1988 7 42 83% 83,091
1987 3 20 75% 72,734
1986 1 6 50% 109,217
1985 1 16 94% 113,879
1982 1 1 100% 106,496
1980 1 10 90% 73,849
1979 3 18 78% 63,097
1978 1 3 100% 83,307
1977 1 1 0% 62,450
1976 4 20 85% 134,749
1975 2 33 85% 87,605
1971 1 14 64% 33,528
1970 1 5 80% 75,085

Porsche 911 turbo reliability FAQ

Across 638 Porsche 911 turbo vehicles in our MOT data, 85% pass the MOT (a 15% failure rate), with about 0.8 faults or advisories recorded per test.

The most frequently recorded Porsche 911 turbo MOT issues are: Nearside Rear Tyre worn close to the legal limit (4.1.E.1); Offside Rear Tyre worn close to the legal limit (4.1.E.1); Offside Front Tyre worn close to the legal limit (4.1.E.1).

The typical Porsche 911 turbo in our data has covered around 60,905 miles.

Compare the Porsche 911 turbo

See how the Porsche 911 turbo stacks up against other Porsche models on MOT reliability:

911 turbo vs 911 911 turbo vs Boxster 911 turbo vs Cayenne 911 turbo vs Macan

Check a specific Porsche 911 turbo

Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.

See all Porsche models · Learn about common MOT failures · what an MOT checks