How reliable is the Jaguar Xjr compared with other cars?

We do not publish a comparison for the Jaguar Xjr, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages.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 75.3% across 2,034 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 do testers most often warn about on a Jaguar Xjr?

The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 14.3% of all Jaguar Xjr tests. An advisory is not a failure: it flags something that will likely need attention before the next test.

What mileage does a Jaguar Xjr usually have at its MOT?

The average odometer reading recorded at test is 97,476 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 Jaguar Xjr years are the most reliable?

Going by MOT pass rate, Jaguar Xjr cars first registered 2017–2019 do best at 82.6%, and those registered 2010 and earlier do worst at 73.5%. 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 Jaguar Xjr get harder to pass as it ages?

Yes. At 6 to 8 years old, 82.6% of Jaguar Xjr tests pass. By fifteen years or more, that falls to 73.5%. Nearly every model follows this pattern, which is why comparing raw pass rates between models is misleading unless age is accounted for.

Model reliability file

Jaguar Xjr MOT pass rate & common failures

From 2,034 recorded MOT tests of the Jaguar Xjr, published by DVSA.

Data updated 29 July 2026

Quick answer

Across 2,034 MOT tests, 75.3% of Jaguar Xjr tests ended in a pass. This figure is not adjusted for age or mileage, so it is not a reliability ranking: the Jaguar Xjr 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 suspension joint dust cover missing or no longer prevents the ingress of dirt etc, which appears in 16.4% of failed tests. Cars of this model average 97,476 miles on the odometer when tested.

At a glance

Recorded pass rate

75.3%unadjusted, not comparable2,034 tests

We are not publishing a ranking for the Xjr. 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 2,034 tests and are worth reading on their own terms.

DVSA recorded wording

Most common failure items

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

1.A suspension joint dust cover missing or no longer prevents the ingress of dirt etc16.4%
72 occurrencesSuspension joint dust cover missing or split explained
2.Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc11.6%
51 occurrencesSteering rack gaiter split, damaged or missing explained
3.The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired10.7%
47 occurrencesSuspension mounting corroded or insecure explained
4.Engine MIL illuminated indicating a malfunction10.7%
47 occurrencesEngine management light on, or not working explained
5.A suspension pin, bush or joint excessively worn10.3%
45 occurrencesSuspension arm bush worn explained
6.Lambda coefficient outside the default limits or the range specified by the manufacturer9.4%
41 occurrencesEmissions above the permitted limit explained
7.Brake pipe damaged or excessively corroded8.9%
39 occurrencesBrake pipe corroded explained
8.A suspension joint dust cover missing or no longer prevents the ingress of dirt etc7.5%
33 occurrencesSuspension joint dust cover missing or split explained
9.Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced7.1%
31 occurrencesCorrosion in a structural area explained
10.Emissions levels exceed the manufacturer's specified limits6.4%
28 occurrencesEmissions above the permitted limit explained

Warnings without a failure

Most common advisories

Share of all Jaguar Xjr 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 requirements14.3%
291 testsTyre worn close to the legal limit explained
2.Brake pipe damaged or excessively corroded12.9%
262 testsBrake pipe corroded explained
3.A tyre seriously damaged10.7%
218 testsTyre damaged or deteriorated explained
4.A suspension pin, bush or joint excessively worn9.4%
192 testsSuspension arm bush worn explained
5.Brake disc or drum excessively weakened, insecure or fractured8.0%
163 testsBrake disc worn, pitted or scored explained
6.A spring or spring component fractured or seriously weakened7.1%
145 testsRoad spring broken or fractured explained
7.A suspension component excessively damaged or corroded6.8%
139 testsSuspension mounting corroded or insecure explained
8.A brake lining or pad worn below 1.5mm6.5%
132 testsBrake drum or shoe worn or contaminated explained

The rest of the record

Everything else recorded on the Jaguar Xjr

The 16 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

Xjr pass rate by age and registration year

How often the Jaguar Xjr passes at each age, with the years those cars were first registered. Tests are from 2025, so a car aged 6 to 8 was first used in 2017–2019.

6–8 yrsreg. 2017–201983%

9–11 yrsreg. 2014–201689%

15+ yrsreg. 2010 and earlier73%

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 Xjr 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 Xjr fleet

Average mileage recorded at test: 97,476
Fuel mix of tested cars: Petrol99.7%

Check a specific Jaguar Xjr

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

Compare within the range

Other Jaguar models

Jaguar XF — 77.9% adjusted
Jaguar F-Pace — 84.6% adjusted
Jaguar XE — 82.0% adjusted
Jaguar E-Pace — 87.3% unadjusted
Jaguar I-Pace — 91.5% unadjusted
Jaguar XJ — 79.9% adjusted
All Jaguar models

Common questions

How reliable is the Jaguar Xjr compared with other cars?: We do not publish a comparison for the Jaguar Xjr, 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 75.3% across 2,034 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 Jaguar Xjr?: The item recorded most often is "A suspension joint dust cover missing or no longer prevents the ingress of dirt etc", which appears in 16.4% of failed Jaguar Xjr 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 Jaguar Xjr?: The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 14.3% of all Jaguar Xjr tests. An advisory is not a failure: it flags something that will likely need attention before the next test.
What mileage does a Jaguar Xjr usually have at its MOT?: The average odometer reading recorded at test is 97,476 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 Jaguar Xjr years are the most reliable?: Going by MOT pass rate, Jaguar Xjr cars first registered 2017–2019 do best at 82.6%, and those registered 2010 and earlier do worst at 73.5%. 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 Jaguar Xjr get harder to pass as it ages?: Yes. At 6 to 8 years old, 82.6% of Jaguar Xjr tests pass. By fifteen years or more, that falls to 73.5%. Nearly every model follows this pattern, which is why comparing raw pass rates between models is misleading unless age is accounted for.

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.