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MOT reliability

Porsche 356b

59 vehicles · 286 completed MOT tests analysed
85%
MOT pass rate

Based on 59 Porsche 356b vehicles and 286 completed MOT tests, the Porsche 356b has an overall 85% pass rate, with an average recorded mileage of 54,960 miles.

59
Vehicles
286
MOT tests
594
Avg miles / year
0.8
Faults per test
0%
Dangerous-fault share

Porsche 356b problem areas

Where faults occur most across all Porsche 356b MOT tests:

  • Other109%
  • Emissions & nuisance7%
  • Brakes4%
  • Lamps & electrical2%
  • Tyres, wheels & suspension2%
  • Steering1%
  • Seatbelts & equipment1%

Porsche 356b pass rate by age

Age (years)TestsPass rate
19100%
21080%
3683%
46100%
5475%
6475%
72100%
85100%
91100%
10560%
11475%
12367%
133100%
14683%
15367%
16683%
17786%
18771%
19862%
203100%

Fuel types: Petrol (59)

Most common Porsche 356b MOT faults

These are the faults and advisories recorded most often across Porsche 356b MOT tests:

  1. Nearside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a) (10 times)
  2. Offside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a) (9 times)
  3. Nearside Stop lamp not working (1.2.1b) (7 times)
  4. Offside Stop lamp not working (1.2.1b) (7 times)
  5. Windscreen washer provides insufficient washer liquid (8.2.3) (7 times)
  6. Parking brake: efficiency below requirements (3.7.B.7) (6 times)
  7. Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.5b) (5 times)
  8. Horn not working (1.6.2a) (4 times)
  9. Brakes imbalanced across an axle (3.7.B.5b) (4 times)
  10. Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.7) (4 times)
  11. Service brake: service brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.7) (4 times)
  12. Front Windscreen washer provides insufficient washer liquid (8.2.3) (3 times)
  13. Oil leak (3 times)
  14. Parking brake lever has no reserve travel (3.1.6b) (3 times)
  15. Nearside Front Suspension arm has slight play in a pin/bush (2.4.G.2) (3 times)

Porsche 356b pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2019 2 5 80% 51,894
2018 1 1 100% 49,143
2017 3 5 100% 53,947
2016 4 8 88% 42,174
2015 4 10 80% 26,246
2014 5 15 93% 64,066
2013 1 8 88% 63,819
2012 1 1 100% 4
2011 1 8 75% 35,821
2010 1 5 60% 83,315
2007 1 1 100% 44,720
2006 1 2 50% 96,206
2002 1 1 100% 41,269
2001 1 5 100% 40,305
2000 1 1 100% 52,204
1999 2 26 77% 59,587
1997 1 12 83% 95,573
1996 1 2 100% 65,794
1992 1 6 83% 15,472
1991 2 10 80% 63,598
1990 2 5 80% 36,498
1989 2 24 88% 24,698
1978 1 10 70% 105,694
1966 1 5 100% 89,839
1964 1 1 100% 93,003
1963 5 37 78% 69,746
1962 1 15 87% 98,368
1961 3 27 93% 70,648
1960 7 28 93% 45,381
1959 1 2 50% 65,338

Porsche 356b reliability FAQ

Across 59 Porsche 356b 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 356b MOT issues are: Nearside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a); Offside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a); Nearside Stop lamp not working (1.2.1b).

The typical Porsche 356b in our data has covered around 54,960 miles.

Compare the Porsche 356b

See how the Porsche 356b stacks up against other Porsche models on MOT reliability:

356b vs 911 356b vs Boxster 356b vs Cayenne 356b vs Macan

Check a specific Porsche 356b

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