How reliable is the Bentley Bentayga compared with other cars?

We do not publish a comparison for the Bentley Bentayga, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 95.3% across 3,151 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.

What is the most common MOT failure on a Bentley Bentayga?

The item recorded most often is "A tyre seriously damaged", which appears in 33.9% of failed Bentley Bentayga tests. Because one failed test can list several items, these shares do not add up to 100%.

What do testers most often warn about on a Bentley Bentayga?

The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 7.7% of all Bentley Bentayga tests. An advisory is not a failure: it flags something that will likely need attention before the next test.

What mileage does a Bentley Bentayga usually have at its MOT?

The average odometer reading recorded at test is 38,393 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.

Which Bentley Bentayga years are the most reliable?

Going by MOT pass rate, Bentley Bentayga cars first registered 2020–2022 do best at 95.9%, and those registered 2014–2016 do worst at 93.4%. But that ordering is mostly age, not build year: almost every model passes less often as it wears, so the newest cars top this list whatever they are. A specific year looking strong here means little on its own; the failure items above, and the individual car's own MOT history, tell you far more.

Does a Bentley Bentayga get harder to pass as it ages?

Yes. At 3 to 5 years old, 95.9% of Bentley Bentayga tests pass. By 9 to 11 years, that falls to 93.4%. Nearly every model follows this pattern, which is why comparing raw pass rates between models is misleading unless age is accounted for.

Are most Bentley Bentayga models petrol or diesel?

Of the Bentley Bentayga cars tested, 76% are petrol, 17% are diesel, 7% are hybrid. Fuel type affects which items tend to fail, particularly emissions and exhaust components.

Model reliability file

Bentley Bentayga MOT pass rate & common failures

From 3,151 recorded MOT tests of the Bentley Bentayga, published by DVSA.

Data updated 29 July 2026

Quick answer

Across 3,151 MOT tests, 95.3% of Bentley Bentayga tests ended in a pass. This figure is not adjusted for age or mileage, so it is not a reliability ranking: the Bentley Bentayga fleet does not yet cover a wide enough spread of ages and distances to compare it fairly against other models. Its most commonly recorded failure is tyre seriously damaged, which appears in 33.9% of failed tests. Cars of this model average 38,393 miles on the odometer when tested.

At a glance

Recorded pass rate

95.3%unadjusted, not comparable3,151 tests

We are not publishing a ranking for the Bentayga. The examples tested do not cover a wide enough spread of ages and mileages to compare it fairly, and an unadjusted pass rate mostly sorts models by how recently they were bought rather than how well they were built. The failure and advisory patterns below come from the same 3,151 tests and are worth reading on their own terms.

DVSA recorded wording

Most common failure items

Share of failed Bentley Bentayga tests in which each item was recorded. One failed test often lists several items, so these do not sum to 100%.

1.A tyre seriously damaged33.9%
41 occurrencesTyre damaged or deteriorated explained
2.A suspension pin, bush or joint excessively worn14.9%
18 occurrencesSuspension arm bush worn explained
3.Number plate does not conform to the specified requirements13.2%
16 occurrencesRegistration plate missing, insecure or illegible explained
4.Tyre tread depth not in accordance with the requirements11.6%
14 occurrencesTyre worn close to the legal limit explained
5.A tyre seriously damaged9.1%
11 occurrencesTyre damaged or deteriorated explained
6.A tyre cords visible or damaged8.3%
10 occurrencesTyre ply or cord exposed, or the casing separating explained
7.Engine MIL illuminated indicating a malfunction6.6%
8 occurrencesEngine management light on, or not working explained
8.A tyre seriously damaged5.0%
6 occurrencesTyre damaged or deteriorated explained
9.A brake lining or pad worn below 1.5mm4.1%
5 occurrencesBrake drum or shoe worn or contaminated explained
10.Lambda coefficient outside the default limits or the range specified by the manufacturer4.1%
5 occurrencesEmissions above the permitted limit explained

Warnings without a failure

Most common advisories

Share of all Bentley Bentayga tests carrying each advisory. The denominator differs from the failure list above because an advisory can be issued on a car that passed.

1.Tyre tread depth not in accordance with the requirements7.7%
244 testsTyre worn close to the legal limit explained
2.A suspension pin, bush or joint excessively worn4.2%
133 testsSuspension arm bush worn explained
3.A tyre seriously damaged3.7%
117 testsTyre damaged or deteriorated explained
4.A brake lining or pad worn below 1.5mm3.6%
112 testsBrake drum or shoe worn or contaminated explained
5.A tyre seriously damaged3.4%
106 testsTyre damaged or deteriorated explained
6.Nail in tyre1.7%
55 tests
7.A tyre seriously damaged1.5%
46 testsTyre damaged or deteriorated explained
8.Tyre tread depth not in accordance with the requirements1.4%
44 testsTyre worn close to the legal limit explained

The rest of the record

Everything else recorded on the Bentley Bentayga

The 19 other defects testers recorded on this model, beyond the most common listed above. Each links to what it means and what it takes to put right.

How wear changes the picture

Bentayga pass rate by age and registration year

How often the Bentley Bentayga passes at each age, with the years those cars were first registered. Tests are from 2025, so a car aged 3 to 5 was first used in 2020–2022.

3–5 yrsreg. 2020–202296%

6–8 yrsreg. 2017–201995%

9–11 yrsreg. 2014–201693%

Read this as an age curve rather than a verdict on particular model years. Nearly every car passes less often as it gets older, so a newer Bentayga outscoring an older one says more about wear than about how that year’s cars were built. Bands holding too few tests to be meaningful are omitted rather than shown as a rate.

What gets tested

The Bentayga fleet

Average mileage recorded at test: 38,393
Fuel mix of tested cars: Petrol76.2%
Diesel17.0%
Hybrid6.8%

Trim names grouped into this model (3)

Recorded exactly as DVSA holds them. Trim-level names are rolled up so one model is not split across a dozen thin pages.

BENTAYGA V6 HYBRID AUTO
BENTAYGA V8 AZURE AUTO
BENTAYGA V8 S AUTO

Check a specific Bentley Bentayga

A model average tells you the pattern. Its own MOT record tells you the car.

Compare within the range

Other Bentley models

Bentley Continental — 90.7% adjusted
Bentley Arnage — 86.4% unadjusted
Bentley Mulsanne — 90.8% unadjusted
Bentley Flying Spur — 92.6% unadjusted
Bentley Turbo — 82.5% unadjusted
All Bentley models

Common questions

How reliable is the Bentley Bentayga compared with other cars?: We do not publish a comparison for the Bentley Bentayga, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 95.3% across 3,151 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.
What is the most common MOT failure on a Bentley Bentayga?: The item recorded most often is "A tyre seriously damaged", which appears in 33.9% of failed Bentley Bentayga tests. Because one failed test can list several items, these shares do not add up to 100%.
What do testers most often warn about on a Bentley Bentayga?: The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 7.7% of all Bentley Bentayga tests. An advisory is not a failure: it flags something that will likely need attention before the next test.
What mileage does a Bentley Bentayga usually have at its MOT?: The average odometer reading recorded at test is 38,393 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.
Which Bentley Bentayga years are the most reliable?: Going by MOT pass rate, Bentley Bentayga cars first registered 2020–2022 do best at 95.9%, and those registered 2014–2016 do worst at 93.4%. But that ordering is mostly age, not build year: almost every model passes less often as it wears, so the newest cars top this list whatever they are. A specific year looking strong here means little on its own; the failure items above, and the individual car's own MOT history, tell you far more.
Does a Bentley Bentayga get harder to pass as it ages?: Yes. At 3 to 5 years old, 95.9% of Bentley Bentayga tests pass. By 9 to 11 years, that falls to 93.4%. Nearly every model follows this pattern, which is why comparing raw pass rates between models is misleading unless age is accounted for.
Are most Bentley Bentayga models petrol or diesel?: Of the Bentley Bentayga cars tested, 76% are petrol, 17% are diesel, 7% are hybrid. Fuel type affects which items tend to fail, particularly emissions and exhaust components.

How this was worked out

Method and limits

Figures come from the DVSA anonymised MOT testing dataset, published under the Open Government Licence. Only class 4 initial tests are counted: retests are excluded so a car appears once, and abandoned tests are excluded entirely. No adjusted rate is shown because this model's tested examples do not cover enough of the national age and mileage range for standardisation to mean anything.

An MOT measures whether a car met a legal standard on the day. It is not a breakdown record, a service history or a running-cost estimate, and a pass rate is a property of a fleet rather than a prediction about one car.