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MOT reliability

Porsche 928 gt

65 vehicles · 57 completed MOT tests analysed
75%
MOT pass rate

Based on 65 Porsche 928 gt vehicles and 57 completed MOT tests, the Porsche 928 gt has an overall 75% pass rate, with an average recorded mileage of 100,390 miles.

65
Vehicles
57
MOT tests
1,480
Avg miles / year
1.4
Faults per test
1%
Dangerous-fault share

Porsche 928 gt problem areas

Where faults occur most across all Porsche 928 gt MOT tests:

  • Other104%
  • Tyres, wheels & suspension9%
  • Lamps & electrical9%
  • Brakes5%
  • Identification & plates4%
  • Visibility3%
  • Emissions & nuisance3%
  • Body & structure1%

Porsche 928 gt pass rate by age

Age (years)TestsPass rate
14250%
152100%
166100%
171164%
18580%
19367%
202100%

Fuel types: Petrol (65)

Most common Porsche 928 gt MOT faults

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

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1) (3 times)
  2. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (3 times)
  3. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (3 times)
  4. Exhaust emissions carbon monoxide content excessive (7.3.B.1a) (2 times)
  5. Front Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d) (2 times)
  6. Nearside Front wheel bearing has slight play (2.5.A.3c) (2 times)
  7. bonnet struts defective (2 times)
  8. both sides front tyres worn on inner edges (2 times)
  9. nearside front tyre has outer sidewall damage (no cords visible) (2 times)
  10. Front Play in steering rack inner joint(s) both (2 times)
  11. Rear Registration plate deteriorated but not likely to be misread (0.1 (b)) (2 times)
  12. Horn not working (1.6.2a) (2 times)
  13. front to rear metal fuel lines corroded (2 times)
  14. lower brake efforts from rear brakes (2 times)
  15. play in offside steering rack (2 times)

Porsche 928 gt pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
1994 1 2 100% 18,818
1991 3 23 74% 106,401
1990 4 17 65% 113,212
1989 2 5 80% 132,580
1988 1 2 100% 24,758

Porsche 928 gt reliability FAQ

Across 65 Porsche 928 gt vehicles in our MOT data, 75% pass the MOT (a 25% failure rate), with about 1.4 faults or advisories recorded per test.

The most frequently recorded Porsche 928 gt MOT issues are: Nearside Front Tyre worn close to the legal limit (4.1.E.1); Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)); Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)).

The typical Porsche 928 gt in our data has covered around 100,390 miles.

Compare the Porsche 928 gt

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