Bentley Reliability UK 2026
How reliable is a Bentley? Here’s a data-led reliability profile based on first-time MOT pass rates, model-level breakdown, top failure categories, and a buyer’s verdict.
Bentley reliability snapshot: first-time MOT pass rate 81.5% (+17.5 pp vs the UK average of 64%). Across 4 Bentley models, the typical dangerous-defect rate is 1.58% and the average retest rate is 12.6%. Bentley sits well above the UK average on first-time MOT performance. For a buyer focused on long-term reliability, it's a solid badge — though individual mileage and service history still matter more than brand.
Bentley first-time MOT pass rate
81.5%
Implied failure rate: 18.5% · UK average pass rate: 64%
+17.5 pp
1.58%
12.6%
How Bentley compares to the UK average
The UK national first-time MOT pass rate is 64%, with about 36% of cars failing on the first attempt.Bentley’s pass rate of 81.5% is 17.5 percentage points above that benchmark. That ’s a brand-average figure — individual Bentley models range from the high 60s to above 90%, so model and age matter more than the badge.
Most reliable Bentley models
Ranked by first-time MOT pass rate across our reliability dataset. Restricted to models with meaningful sample size.
Most problematic Bentley models
The Bentley models in our dataset with the lowest first-time MOT pass rates. A low pass rate doesn’t mean a bad car — older platforms naturally accumulate wear faster — but it does mean a pre-purchase MOT history check is essential.
Run a free MOT check on a specific Bentley
Brand averages set expectations — a single car’s history is what actually decides whether it’s worth buying.
Free instant MOT history check at /free-mot-check.
Top MOT failure categories for Bentley
Aggregated across 4 Bentley models in our dataset, weighted by sample size.
Lamps, reflectors and electrical equipment
Suspension
Brakes
Tyres
Exhaust, fuel and emissions
Related reading
Bentley MOT check
Per-model pass rates and free registration lookup.
Bentley common faults
Detailed fault list and indicative repair costs.
Bentley pass rate 2025
Most-recent year-keyed pass rate analysis.
Aston Martin reliability
Brand often cross-shopped against Bentley.
Audi reliability
Brand often cross-shopped against Bentley.
Volvo reliability
Brand often cross-shopped against Bentley.
Bentley reliability — FAQ
Is Bentley a reliable car brand in the UK?
What is the most reliable Bentley model for MOT?
Which Bentley models fail their MOT most often?
What are the most common MOT failures on a Bentley?
Check a Bentley’s MOT history
Free, instant, no signup. Every test result, advisory, and mileage reading since 2005.
Source: MOT Checkup analysis of DVSA MOT test data. Brand-average pass rate is sample-size weighted across 4 Bentley models in our dataset. Individual cars vary considerably — always check the specific registration’s MOT history before buying.