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Porsche 933 c4 vs Porsche Cayenne: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Porsche 933 c4
80%
MOT pass rate · 1 vehicles
Porsche Cayenne
84%
MOT pass rate · 40,483 vehicles
Verdict: On MOT pass rate the Porsche 933 c4 (80%) and Porsche Cayenne (84%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Porsche 933 c4 Porsche Cayenne
MOT pass rate 80% 84% ✓
MOT failure rate 20% 16% ✓
Faults & advisories per test 1.0 ✓ 1.2
Dangerous-fault share 0% ✓ 3%
Average mileage 145,104 mi 87,610 mi
Sample size (vehicles) 1 40,483

Most common faults

Porsche 933 c4

  1. Nearside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt (2.4.G.2)
  2. Nearside Rear brake disc in such a condition that it is seriously weakened cracked (3.5.1i)
  3. Offside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt (2.4.G.2)
  4. headlamp aim pattern masks fitted
  5. Offside Rear Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))

Porsche Cayenne

  1. Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
  2. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
  6. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate the Porsche 933 c4 (80%) and Porsche Cayenne (84%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Porsche 933 c4 report Full Porsche Cayenne report Most reliable cars

Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.