Diesel Porsche Cayenne: MOT pass rate
86.1% of diesel Porsche Cayennes pass the MOT first time, measured across 12,473 DVSA tests on that fuel type alone. Average mileage at test was 89,592.
Diesel against the other Porsche Cayenne versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Petrol | 86.8% | 12,643 |
| Diesel | 86.1% | 12,473 |
| Hybrid | 91.4% | 3,896 |
| All Porsche Cayenne | 87.1% | 29,081 |
Why the fuel type changes the number
Diesels carry DPFs, EGR valves and stricter smoke limits, so emissions and exhaust faults account for failures petrol cars never see.
On the Porsche Cayenne specifically, hybrid is the strongest at 91.4%, and this diesel version sits 1 points below the 87.1% model average.
What it means if you are buying one
The diesel Porsche Cayenne fails more often than the model average, so budget for the items that catch this fuel type and treat a fresh MOT as worth paying for. Check the exact car, decode the VIN and check the mileage before you bid.
Mileage is part of the answer
The average diesel Porsche Cayenne had covered 89,592 miles at test, against 78,599 for the petrol and 48,878 for the hybrid. That is above average, the point where suspension bushes, drop links and exhaust corrosion start showing up as advisories before they become failures.
Fuel type and mileage are tangled together: diesels are usually bought by higher-mileage drivers, so some of any gap between fuels is the miles rather than the engine. The per-year figures on the Porsche Cayenne page separate age from fuel if you want to isolate one.
Other Porsche Cayenne fuel types
- Petrol Porsche Cayenne - 86.8%
- Hybrid Porsche Cayenne - 91.4%