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MOT reliability

Porsche 928 s auto

789 vehicles · 161 completed MOT tests analysed
70%
MOT pass rate

Based on 789 Porsche 928 s auto vehicles and 161 completed MOT tests, the Porsche 928 s auto has an overall 70% pass rate, with an average recorded mileage of 139,878 miles.

789
Vehicles
161
MOT tests
3,071
Avg miles / year
1.7
Faults per test
0%
Dangerous-fault share

Porsche 928 s auto problem areas

Where faults occur most across all Porsche 928 s auto MOT tests:

  • Other97%
  • Emissions & nuisance8%
  • Brakes8%
  • Tyres, wheels & suspension7%
  • Seatbelts & equipment4%
  • Lamps & electrical3%
  • Body & structure1%
  • Steering1%

Porsche 928 s auto pass rate by age

Age (years)TestsPass rate
18250%
191060%
201369%

Fuel types: Petrol (786), Other (2), Diesel (1)

Most common Porsche 928 s auto MOT faults

These are the faults and advisories recorded most often across Porsche 928 s auto MOT tests:

  1. Oil leak (8 times)
  2. Fuel pipe/s corroded (5 times)
  3. Offside Rear Rear fog lamp not working (1.3.2b) (5 times)
  4. Nearside Front Tyre worn close to the legal limit (4.1.E.1) (4 times)
  5. Offside Front Brake hose slightly deteriorated (3.6.B.4d) (4 times)
  6. Offside Front Steering rack gaiter split (2.2.D.2d) (4 times)
  7. Offside Rear fog lamp not working (1.3.2b) (4 times)
  8. Parking brake: efficiency below requirements (3.7.B.7) (4 times)
  9. Nearside Rear Registration plate lamp not working (1.1.5c) (3 times)
  10. Rear fog lamp tell tale not working (1.3.1b) (3 times)
  11. Exhaust emissions carbon monoxide content excessive (7.3.B.1a) (3 times)
  12. Nearside Front Steering rack gaiter split (2.2.D.2d) (3 times)
  13. Nearside Front Brake hose has slight corrosion to ferrule (1.1.12 (f) (i)) (3 times)
  14. Nearside Headlamp aim too low (1.8) (2 times)
  15. Power steering component(s) has slight seepage from a component (2.3.3b) (2 times)

Porsche 928 s auto pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
1987 3 28 68% 109,116
1986 9 38 68% 123,040
1985 4 23 65% 307,149
1984 5 28 71% 144,733
1983 7 27 63% 110,348
1982 3 5 100% 100,340
1981 2 6 67% 108,828

Porsche 928 s auto reliability FAQ

Across 789 Porsche 928 s auto vehicles in our MOT data, 70% pass the MOT (a 30% failure rate), with about 1.7 faults or advisories recorded per test.

The most frequently recorded Porsche 928 s auto MOT issues are: Oil leak; Fuel pipe/s corroded; Offside Rear Rear fog lamp not working (1.3.2b).

The typical Porsche 928 s auto in our data has covered around 139,878 miles.

Compare the Porsche 928 s auto

See how the Porsche 928 s auto stacks up against other Porsche models on MOT reliability:

928 s auto vs 911 928 s auto vs Boxster 928 s auto vs Cayenne 928 s auto vs Macan

Check a specific Porsche 928 s auto

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

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