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MOT reliability

Porsche 911 c4 coupe

1 vehicles · 25 completed MOT tests analysed
80%
MOT pass rate

Based on 1 Porsche 911 c4 coupe vehicles and 25 completed MOT tests, the Porsche 911 c4 coupe has an overall 80% pass rate, with an average recorded mileage of 89,935 miles.

1
Vehicles
25
MOT tests
3,163
Avg miles / year
1.5
Faults per test
5%
Dangerous-fault share

Porsche 911 c4 coupe problem areas

Where faults occur most across all Porsche 911 c4 coupe MOT tests:

  • Brakes42%
  • Other21%
  • Body & structure11%
  • Tyres, wheels & suspension8%
  • Emissions & nuisance8%
  • Seatbelts & equipment5%
  • Lamps & electrical5%

Porsche 911 c4 coupe pass rate by age

Age (years)TestsPass rate
71100%
81100%
91100%
101100%
111100%
121100%
131100%
141100%
151100%
162100%
171100%
181100%
191100%
20250%

Fuel types: Petrol (1)

Most common Porsche 911 c4 coupe MOT faults

These are the faults and advisories recorded most often across Porsche 911 c4 coupe MOT tests:

  1. Offside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c)) (4 times)
  2. Nearside Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i) (2 times)
  3. Offside Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i) (2 times)
  4. Nearside Rear Exhaust has a minor leak of exhaust gases silencer (7.1.2) (2 times)
  5. Nearside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c)) (2 times)
  6. Nearside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i)) (2 times)
  7. Nearside Front Inner Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (2 times)
  8. Nearside Rear Brake pipe corroded, covered in grease or other material (1.1.11 (c)) (2 times)
  9. Offside Front Inner Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (2 times)
  10. Offside Rear Brake pipe corroded, covered in grease or other material CALIPER TO HOSE (1.1.11 (c)) (2 times)
  11. Nearside Front Tyre worn close to the legal limit (4.1.E.1) (1 times)
  12. Nearside Rear Brake hose slightly damaged (3.6.B.4d) (1 times)
  13. Offside Front Tyre worn close to the legal limit (4.1.E.1) (1 times)
  14. Offside Rear Tyre worn close to the legal limit (4.1.E.1) (1 times)
  15. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (1 times)

Porsche 911 c4 coupe pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
1999 1 25 80% 89,935

Porsche 911 c4 coupe reliability FAQ

Across 1 Porsche 911 c4 coupe vehicles in our MOT data, 80% pass the MOT (a 20% failure rate), with about 1.5 faults or advisories recorded per test.

The most frequently recorded Porsche 911 c4 coupe MOT issues are: Offside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c)); Nearside Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i); Offside Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i).

The typical Porsche 911 c4 coupe in our data has covered around 89,935 miles.

Compare the Porsche 911 c4 coupe

See how the Porsche 911 c4 coupe stacks up against other Porsche models on MOT reliability:

911 c4 coupe vs 911 911 c4 coupe vs Boxster 911 c4 coupe vs Cayenne 911 c4 coupe vs Macan

Check a specific Porsche 911 c4 coupe

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