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Bentley Mulsanne

Reliability, running costs, and MOT data across 14 years from 2,491 real MOT tests.

Avg Pass Rate

96%

Total Tests

2,491

Best Year

2018 (100%)

Years Covered

14

How reliable is the Bentley Mulsanne?

vs national average+14% (82% avg)
vs Bentley brand average+2% (94% avg)
Best to worst year spread14 percentage points
Reliability trendImproving over years

Bentley Mulsanne by Year

YearPass RateTestsAvg Mileage
202196%549,124 mi
202099%7612,990 mi
201998%19721,125 mi
2018100%9527,069 mi
201799%29722,331 mi
201698%33527,325 mi
201595%24928,860 mi
201499%23741,306 mi
201398%17535,886 mi
201296%20343,144 mi
201193%28347,470 mi
2010100%8660,646 mi
199186%6683,012 mi
199088%13878,194 mi

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About the Bentley Mulsanne

The Bentley Mulsanne has been tested 2,491 times in 2024 MOT data across 14 model years (1990 to 2021), with an average pass rate of 96%. That's comfortably above the national average of 82%, making it a reliable choice. Available as petrol.

Best and Worst Years

The 2018 model is the most reliable with a 100% pass rate from 95 tests. The 1991 model has the lowest at 86%. The 14 point spread between years means reliability varies somewhat, but no year is dramatically different.

Reliability Trend

Newer BENTLEY MULSANNEs show better MOT pass rates than older ones, with an average improvement of 4 percentage points.

Mileage Across Years

The oldest model in our data (1990) averages 78,194 miles, while the newest (2021) averages 9,124 miles.

Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.