Diesel Bentley Bentayga: MOT pass rate
96.1% of diesel Bentley Bentaygas pass the MOT first time, measured across 537 DVSA tests on that fuel type alone. Average mileage at test was 46,538.
Diesel against the other Bentley Bentayga versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Petrol | 96% | 2,038 |
| Diesel | 96.1% | 537 |
| All Bentley Bentayga | 96% | 2,578 |
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 Bentley Bentayga specifically, diesel is the strongest at 96.1%, and this diesel version sits 0.1 points above the 96% model average.
What it means if you are buying one
There is little to choose between fuel types on this model, so decide on running costs and mileage rather than MOT record. Buying a damaged one? run it through the analyzer, check the exact car, decode the VIN and check the mileage before you bid.
Mileage is part of the answer
The average diesel Bentley Bentayga had covered 46,538 miles at test, against 34,382 for the petrol. That is below average for a car this age, worth a mileage-consistency check since an unusually low reading is sometimes clocking rather than luck.
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 Bentley Bentayga page separate age from fuel if you want to isolate one.
Most common MOT advisories on a diesel Bentley Bentayga
Flagged but doesn't fail the car, a different list from the failures above.
- Tyre tread depth not in accordance with the requirements, 14.1% of tests
- A suspension pin, bush or joint excessively worn, 7.4% of tests
- a brake lining or pad worn below 1.5mm, 6.7% of tests
- A tyre seriously damaged, 5.4% of tests
- Brake disc or drum significantly and obviously worn, 0.9% of tests
- Brake disc or drum excessively weakened, insecure or fractured, 0.4% of tests
- A suspension component with an unsafe modification, 0.2% of tests (11.05x the national rate for this defect)
- Brake fluid significantly below minimum mark, 0.2% of tests (2.38x the national rate for this defect)
From 540 DVSA-tracked diesel Bentley Bentayga tests, 2024.
Other Bentley Bentayga fuel types
- Petrol Bentley Bentayga - 96%