Bentley Eight Reliability, MOT Pass Rate & Common Faults
Free Bentley Eight car check
Is the Bentley Eight reliable? We analysed 7,125 real MOT tests across 539 vehicles to find out.
Got a specific Bentley Eight? Enter the reg for a free check:
The Bentley Eight is above average for reliability based on real UK MOT data. Common problems include parking brake: efficiency below requirements, parking brake recording little or no effort and brake pipe excessively corroded. Here's everything you need to know before buying a used Bentley Eight.
Bentley Eight Number Plates
Number plates registered to a Bentley Eight. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Bentley Eight MOT Pass Rate by Year
How likely is a Bentley Eight to pass its MOT? Here's the pass rate for each registration year, newest first.
Bentley Eight Problems — What Goes Wrong?
The most common reasons a Bentley Eight fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Bentley Eight Mileage — What's Normal?
How many miles does a typical Bentley Eight owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Bentley Eight MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Bentley Eight year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 1992 | 340 | 75.0% | 58,685 | 73,940 | 94,496 |
| 1991 | 944 | 78.9% | 51,909 | 73,002 | 86,128 |
| 1990 | 977 | 80.3% | 39,586 | 77,846 | 104,912 |
| 1989 | 1,141 | 77.4% | 55,748 | 81,617 | 105,690 |
| 1988 | 869 | 78.4% | 71,486 | 85,258 | 106,428 |
| 1987 | 851 | 75.4% | 73,921 | 88,368 | 120,594 |
| 1986 | 1,000 | 77.8% | 70,758 | 90,734 | 120,700 |
| 1985 | 611 | 77.3% | 72,207 | 95,780 | 122,971 |
| 1984 | 193 | 79.8% | 74,436 | 98,867 | 121,038 |
How Long Does a Bentley Eight Last?
Based on 539 Bentley Eight vehicles on UK roads.
Bentley Eight Mileage Distribution
Total mileage recorded across all Bentley Eight MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Bentley Eight
Based on MOT pass rates across all registration years with sufficient test data.
80.3% MOT pass rate from 977 tests
75.0% MOT pass rate from 340 tests
The best year to buy a used Bentley Eight is 1990, which has the highest MOT pass rate at 80.3% across 977 tests. The 1992 model year has the lowest pass rate at 75.0% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Bentley Eight Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Bentley Eight THIS CAR | 77.9% | 7,125 | 82,371 mi | 42 yrs |
| Bentley Continental | 90% | 209,069 | 37,776 mi | 29 yrs |
| Bentley Arnage | 85.9% | 40,970 | 45,703 mi | 28 yrs |
| Bentley Turbo | 78.7% | 31,416 | 73,541 mi | 41 yrs |
| Ford Kuga St-line First ED PHEV CVT | 90.3% | 3,645 | 30,662 mi | — yrs |
Compared to the Bentley Continental (90.0% pass rate) and the Bentley Arnage (85.9% pass rate), the Bentley Eight trails behind on MOT reliability.
Found a Bentley Eight you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Bentley EightShould you buy a used Bentley Eight?
The Bentley Eight has an overall MOT pass rate of 77.9% across 7,125 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Bentley Eight are parking brake: efficiency below requirements (540 recorded failures), parking brake recording little or no effort (277), and brake pipe excessively corroded (100). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Bentley Eight owner drives around 515 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Bentley Eight models stay on UK roads for around 42 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.