MOT reliability
Porsche 356
429 vehicles · 2,816 completed MOT tests analysed
82%
MOT pass rate
Based on 429 Porsche 356 vehicles and 2,816 completed MOT tests, the Porsche 356 has an overall 82% pass rate, with an average recorded mileage of 48,601 miles.
429
Vehicles
2,816
MOT tests
941
Avg miles / year
1
Faults per test
1%
Dangerous-fault share
Porsche 356 problem areas
Where faults occur most across all Porsche 356 MOT tests:
-
Other98%
-
Brakes8%
-
Emissions & nuisance6%
-
Steering4%
-
Tyres, wheels & suspension4%
-
Lamps & electrical3%
-
Seatbelts & equipment2%
-
Visibility1%
Porsche 356 pass rate by age
How the Porsche 356's MOT pass rate changes as it ages (buckets with 20+ tests).
| Age (years) | Tests | Pass rate |
|---|---|---|
| 1 | 108 | 72% |
| 2 | 105 | 79% |
| 3 | 81 | 89% |
| 4 | 87 | 83% |
| 5 | 68 | 85% |
| 6 | 69 | 80% |
| 7 | 62 | 90% |
| 8 | 62 | 84% |
| 9 | 54 | 83% |
| 10 | 63 | 87% |
| 11 | 50 | 80% |
| 12 | 48 | 83% |
| 13 | 50 | 88% |
| 14 | 41 | 80% |
| 15 | 46 | 80% |
| 16 | 50 | 78% |
| 17 | 61 | 82% |
| 18 | 59 | 76% |
| 19 | 47 | 87% |
| 20 | 44 | 77% |
Fuel types: Petrol (427), Electric (1), Other (1)
Most common Porsche 356 MOT faults
These are the faults and advisories recorded most often across Porsche 356 MOT tests:
- Parking brake: efficiency below requirements (3.7.B.7) (63 times)
- Oil leak (51 times)
- Windscreen washer provides insufficient washer liquid (8.2.3) (47 times)
- Nearside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a) (46 times)
- Offside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a) (42 times)
- Brakes imbalanced across an axle (3.7.B.5b) (39 times)
- Horn not working (1.6.2a) (30 times)
- Nearside Front wheel bearing has slight play (2.5.A.3c) (30 times)
- Offside Headlamp aim too high (1.8) (28 times)
- Nearside Stop lamp not working (1.2.1b) (27 times)
- Nearside Headlamp aim too high (1.8) (25 times)
- Oil leak, but not excessive (8.4.1 (a) (i)) (25 times)
- Offside Stop lamp not working (1.2.1b) (25 times)
- Nearside rear parking brake recording little or no effort (3.7.B.6a) (23 times)
- Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.5b) (21 times)
Porsche 356 pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 2020 | 3 | 10 | 90% | 19,387 |
| 2019 | 2 | 2 | 100% | 31,491 |
| 2018 | 8 | 15 | 67% | 30,683 |
| 2017 | 7 | 8 | 100% | 55,271 |
| 2016 | 6 | 30 | 77% | 48,560 |
| 2015 | 25 | 71 | 80% | 32,195 |
| 2014 | 17 | 72 | 82% | 41,110 |
| 2013 | 19 | 73 | 78% | 48,344 |
| 2012 | 11 | 72 | 82% | 40,271 |
| 2011 | 8 | 40 | 82% | 40,393 |
| 2010 | 7 | 35 | 89% | 56,688 |
| 2009 | 12 | 83 | 77% | 50,027 |
| 2008 | 6 | 36 | 86% | 37,747 |
| 2007 | 13 | 116 | 83% | 95,140 |
| 2006 | 15 | 121 | 81% | 50,476 |
| 2005 | 8 | 74 | 84% | 51,338 |
| 2004 | 9 | 82 | 83% | 48,088 |
| 2003 | 3 | 19 | 95% | 33,912 |
| 2002 | 7 | 56 | 88% | 31,123 |
| 2001 | 10 | 82 | 70% | 58,838 |
| 2000 | 10 | 61 | 90% | 43,549 |
| 1999 | 3 | 17 | 76% | 55,681 |
| 1998 | 4 | 25 | 88% | 41,744 |
| 1997 | 3 | 26 | 77% | 33,094 |
| 1996 | 6 | 48 | 96% | 62,192 |
| 1995 | 2 | 22 | 86% | 47,945 |
| 1993 | 2 | 21 | 81% | 75,553 |
| 1992 | 6 | 69 | 74% | 28,615 |
| 1991 | 5 | 48 | 75% | 73,764 |
| 1990 | 13 | 110 | 81% | 47,447 |
| 1989 | 15 | 186 | 88% | 43,966 |
| 1988 | 4 | 34 | 82% | 50,496 |
| 1987 | 2 | 21 | 57% | 26,709 |
| 1986 | 1 | 7 | 71% | 7,193 |
| 1985 | 1 | 8 | 88% | 93,186 |
| 1982 | 1 | 1 | 100% | 8,827 |
| 1981 | 2 | 12 | 92% | 32,960 |
| 1980 | 1 | 18 | 78% | 8,065 |
| 1978 | 3 | 27 | 78% | 43,504 |
| 1977 | 1 | 1 | 100% | 108,816 |
| 1973 | 2 | 4 | 100% | 3,005 |
| 1971 | 4 | 48 | 65% | 45,020 |
| 1970 | 2 | 28 | 68% | 50,676 |
| 1968 | 2 | 13 | 92% | 76,009 |
| 1967 | 1 | 10 | 90% | 6,999 |
| 1966 | 1 | 12 | 83% | 91,921 |
| 1965 | 14 | 123 | 84% | 60,044 |
| 1964 | 23 | 155 | 88% | 55,818 |
| 1963 | 19 | 134 | 86% | 45,816 |
| 1962 | 15 | 118 | 83% | 52,927 |
| 1961 | 13 | 93 | 82% | 50,003 |
| 1960 | 10 | 38 | 68% | 50,129 |
| 1959 | 9 | 46 | 76% | 44,977 |
| 1958 | 11 | 44 | 86% | 91,896 |
| 1957 | 8 | 36 | 72% | 47,289 |
| 1956 | 4 | 24 | 92% | 20,448 |
| 1955 | 4 | 15 | 100% | 42,276 |
| 1954 | 3 | 7 | 100% | 19,941 |
| 1953 | 1 | 6 | 83% | 81,731 |
| 1951 | 1 | 1 | 100% | 10 |
Porsche 356 reliability FAQ
Across 429 Porsche 356 vehicles in our MOT data,
82% pass the MOT (a 18% failure rate), with about
1 faults or advisories recorded per test.
The most frequently recorded Porsche 356 MOT issues are:
Parking brake: efficiency below requirements (3.7.B.7); Oil leak; Windscreen washer provides insufficient washer liquid (8.2.3).
The typical Porsche 356 in our data has covered around
48,601 miles.
Compare the Porsche 356
See how the Porsche 356 stacks up against other Porsche models on MOT reliability:
Check a specific Porsche 356
Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.
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