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Bentley Fhc vs Bentley Unknown: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Bentley Fhc
75%
MOT pass rate · 1 vehicles
Bentley Unknown
90%
MOT pass rate · 9,548 vehicles
Verdict: On MOT pass rate the Bentley Fhc (75%) and Bentley Unknown (90%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Bentley Fhc Bentley Unknown
MOT pass rate 75% 90%
MOT failure rate 25% 10%
Faults & advisories per test 2.5 0.9
Dangerous-fault share 0% 7%
Average mileage 67,137 mi 34,409 mi
Sample size (vehicles) 1 9,548

Most common faults

Bentley Fhc

  1. Power steering pump has slight seepage from a component (2.3.3b)
  2. Exhaust has a major leak of exhaust gases (7.1.2)
  3. Front Shock absorber has negligible damping effect (2.7.5)
  4. rear suspension has slight movement front to rear
  5. headlamp reflectors corroded
  6. nearside rear brake disc corroded

Bentley Unknown

  1. COVID-19 6 MONTH EXTENSION
  2. Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))
  3. Parking brake: efficiency below requirements (3.7.B.7)
  4. Windscreen washer provides insufficient washer liquid (8.2.3)
  5. Oil leak
  6. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate the Bentley Fhc (75%) and Bentley Unknown (90%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Bentley Fhc report Full Bentley Unknown 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.