Porsche 928 s series 4 auto vs Porsche Macan: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Porsche 928 s series 4 auto
79%
MOT pass rate · 300 vehicles
Porsche Macan
92%
MOT pass rate · 37,639 vehicles
More reliable
Verdict: On MOT pass rate, the Porsche Macan is the more reliable of the two — 92% pass first time versus 79%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Porsche 928 s series 4 auto | Porsche Macan |
|---|---|---|
| MOT pass rate | 79% | 92% ✓ |
| MOT failure rate | 21% | 8% ✓ |
| Faults & advisories per test | 1.4 | 0.8 ✓ |
| Dangerous-fault share | 1% ✓ | 4% |
| Average mileage | 111,137 mi | 50,555 mi |
| Sample size (vehicles) | 300 | 37,639 |
Most common faults
Porsche 928 s series 4 auto
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Oil leak, but not excessive (8.4.1 (a) (i))
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Nearside Rear Outer Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))
- Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
Porsche Macan
- Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
- Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
Reliability FAQ
On MOT pass rate, the Porsche Macan is the more reliable of the two — 92% pass first time versus 79%. It's one signal among several; check the full breakdown below.
Full Porsche 928 s series 4 auto report Full Porsche Macan 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.