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MOT reliability

Porsche 928 s series 4

85 vehicles · 45 completed MOT tests analysed
78%
MOT pass rate

Based on 85 Porsche 928 s series 4 vehicles and 45 completed MOT tests, the Porsche 928 s series 4 has an overall 78% pass rate, with an average recorded mileage of 146,044 miles.

85
Vehicles
45
MOT tests
1,305
Avg miles / year
1.7
Faults per test
0%
Dangerous-fault share

Porsche 928 s series 4 problem areas

Where faults occur most across all Porsche 928 s series 4 MOT tests:

  • Other67%
  • Tyres, wheels & suspension12%
  • Emissions & nuisance8%
  • Seatbelts & equipment5%
  • Brakes4%
  • Steering4%
  • Lamps & electrical3%

Porsche 928 s series 4 pass rate by age

Age (years)TestsPass rate
81100%
91100%
171100%
19475%
20475%

Fuel types: Petrol (85)

Most common Porsche 928 s series 4 MOT faults

These are the faults and advisories recorded most often across Porsche 928 s series 4 MOT tests:

  1. Nearside Front Shock absorber has a light misting of oil (2.7.3) (3 times)
  2. Nearside Track rod end ball joint has excessive play (2.2.B.1f) (2 times)
  3. Fuel tank leaking (7.2.3) (2 times)
  4. Offside Front Coil spring corroded (5.3.1 (b) (i)) (2 times)
  5. Offside Front Coil spring corroded Very slight (5.3.1 (b) (i)) (2 times)
  6. Undertray fitted (2 times)
  7. Central Exhaust has a minor leak of exhaust gases (7.1.2) (2 times)
  8. Nearside Front Brake hose has slight corrosion to ferrules (3.6.B.4e) (2 times)
  9. Nearside Front Brake hose slightly deteriorated (3.6.B.4d) (2 times)
  10. Offside Front Brake hose has slight corrosion to ferrules (3.6.B.4e) (2 times)
  11. Offside Front Brake hose slightly deteriorated (3.6.B.4d) (2 times)
  12. Nearside Steering arm has relative movement at its fixings (2.2.B.1h) (1 times)
  13. Nearside Windscreen washer provides insufficient washer liquid (8.2.3) (1 times)
  14. Offside Headlamp aim aimed so that it dazzles other road users (1.8.A.1a) (1 times)
  15. Offside Rear Direction indicator incorrect colour (1.4.A.2f) (1 times)

Porsche 928 s series 4 pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
1998 1 2 100% 188,419
1990 1 21 81% 124,656
1989 1 1 100% 115,416
1988 1 7 71% 182,568
1987 2 8 75% 133,330
1986 1 6 67% 144,588

Porsche 928 s series 4 reliability FAQ

Across 85 Porsche 928 s series 4 vehicles in our MOT data, 78% pass the MOT (a 22% failure rate), with about 1.7 faults or advisories recorded per test.

The most frequently recorded Porsche 928 s series 4 MOT issues are: Nearside Front Shock absorber has a light misting of oil (2.7.3); Nearside Track rod end ball joint has excessive play (2.2.B.1f); Fuel tank leaking (7.2.3).

The typical Porsche 928 s series 4 in our data has covered around 146,044 miles.

Compare the Porsche 928 s series 4

See how the Porsche 928 s series 4 stacks up against other Porsche models on MOT reliability:

928 s series 4 vs 911 928 s series 4 vs Boxster 928 s series 4 vs Cayenne 928 s series 4 vs Macan

Check a specific Porsche 928 s series 4

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