Bentley Mulsanne MOT pass rate and common failures
In 2025, 90.8% of Bentley Mulsanne MOT tests were a first-time pass, across 928 tests in Great Britain. For all cars it was 71.5%.
Compared with cars of the same age
Older cars fail more often, so a model that’s mostly a few years old will look better than one that’s mostly 12. These figures compare like with like.
At 3–5 years
–
Too few tests at this age to say.
At 6–10 years
94.8%
All cars: 76.1% (18.7 points better). 365 tests.
At 11 years and over
86.1%
All cars: 61.3% (24.8 points better). 445 tests.
Pass rate by age
Figures by age, with typical mileage
| Age (years) | Tests | First-time pass | All cars | Typical mileage |
|---|---|---|---|---|
| 7 | 56 | 89.3% | 79.3% | 23,750 miles |
| 8 | 98 | 96.9% | 76.3% | 21,250 miles |
| 9 | 113 | 92.9% | 73.1% | 28,750 miles |
| 10 | 98 | 98.0% | 70.0% | 31,250 miles |
| 11 | 72 | 94.4% | 66.9% | 31,250 miles |
| 12 | 72 | 95.8% | 64.4% | 33,750 miles |
| 13 | 58 | 96.6% | 62.1% | 38,750 miles |
| 14 | 74 | 91.9% | 60.2% | 46,250 miles |
| 20+ | 169 | 72.2% | 61.4% | 91,250 miles |
Typical mileage is the median reading at the test, to the nearest 2,500 miles.
What fails most often
The share of Bentley Mulsanne MOT tests that failed on at least one item in each area, against all cars. A test can fail on several areas at once.
| Area | Mulsanne | All cars |
|---|---|---|
| Brakes | 5.3% | 10.2% |
| Lamps, reflectors and electrical equipment | 4.4% | 16.6% |
| Suspension | 2.8% | 13.7% |
| Noise, emissions and leaks | 1.8% | 4.0% |
| Tyres | 1.7% | 8.4% |
| Visibility | 1.2% | 5.2% |
| Identification of the vehicle | 0.6% | 0.4% |
| Seat belts and supplementary restraint systems | 0.4% | 1.1% |
Most common reasons for failing
- Rbt (sp): efficiency less than 50% of the required value failed 1.3% of tests
- Parking brake performance: inoperative on one side failed 1.0% of tests · what this means
- Condition: has a cut in excess of the requirements deep enough to reach the ply or cords failed 0.9% of tests
- Malfunction indicator lamp: inoperative or indicates a malfunction failed 0.9% of tests · what this means
- Position lamp: not working failed 0.8% of tests · what this means
- Registration plate lamp(s): inoperative in the case of a single lamp or all lamps failed 0.6% of tests · what this means
- Registration plates: does not conform to the specified requirements failed 0.6% of tests · what this means
- Rbt (sp): efficiency below requirements failed 0.6% of tests
- Shock absorbers: has a serious fluid leak failed 0.5% of tests · what this means
- Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength failed 0.5% of tests
Checking a particular Mulsanne?
See its own MOT history, mileage record and advisories in plain English. Free, no sign-up.
About these figures
- They cover every Mulsanne version DVSA records under this name (engines, trims and generations together), on its first MOT test of each visit. A “pass with rectification” (fixed within an hour) counts as a fail, as in DVSA’s own statistics.
- Cars under three years old are left out, because the few tested that young are mostly taxis.
- Fuel mix of the cars tested: petrol 99.9%, liquefied petrolum gas (lpg) 0.1%.
- A pass rate describes the model, not any one car. How a car has been looked after matters more.
Download these figures (CSV) · Other Bentley models · All makes
Source: DVSA anonymised MOT test data for 2025. Contains public sector information licensed under the Open Government Licence v3.0. Our own analysis; not produced or endorsed by DVSA.