MOT failures by make
Jaguar MOT failures for “Ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt”
Jaguar cars failed their MOT on “Ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt” in 0.87% of 700,050 tests in 2023–2024 (6,109 tests) — 2.1 times as often as comparable cars of the same age, mileage and fuel, which would have failed on it in about 0.41% of tests. It is the number 12 most common failure item on Jaguars.
Data to 2024-12-30 · Page updated 2026-09-28 · Publisher: 73 Auto
- Jaguar tests failing on it
- 0.87%
- 6,109 of 700,050 tests, 2023–2024
- Comparable cars
- 0.41%
- national rate at the same age, mileage and fuel
- Observed ÷ expected
- 2.12×
- 73 Auto analysis · rank #12 for Jaguar
How unusual this is for the make
Across all MOT failures, Jaguars fail 19% less often than comparable cars. On this item the gap is 2.61× wider than that overall level, so it is a genuine Jaguar pattern rather than a reflection of how often the make fails in general. It is a major defect in the suspension part of the test. Nationally it appears on 0.46% of MOT tests.
Jaguar models and “Ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt”
The Jaguar S-Type is most affected (4.20× comparable cars); the Jaguar XE least (0.12×). Not every model follows the make: the pattern is concentrated in some models. Model rows compare with cars of the same age and fuel.
| Model | Tests | Failed on it | vs similar cars |
|---|---|---|---|
| Jaguar S-Type | 24,693 | 4.15% | 4.20× |
| Jaguar XK | 16,340 | 2.45% | 3.44× |
| Jaguar XF | 199,994 | 1.28% | 2.56× |
| Jaguar Xkr | 17,216 | 1.81% | 2.27× |
| Jaguar XJ | 48,662 | 1.48% | 2.10× |
| Jaguar X-Type | 54,770 | 1.29% | 1.22× |
| Jaguar F-Type | 28,642 | 0.21% | 0.89× |
| Jaguar E-Pace | 59,819 | 0.04% | 0.77× |
| Jaguar F-Pace | 101,644 | 0.03% | 0.23× |
| Jaguar XE | 87,969 | 0.03% | 0.12× |
By age at test
The difference is largest at 11-12 years old: 1.96% of Jaguar tests against 0.56% for comparable cars.
| Age (years) | Jaguar tests | Jaguar | Comparable cars |
|---|---|---|---|
| 3-4 | 117,980 | 0.02% | 0.03% |
| 5-6 | 131,538 | 0.04% | 0.14% |
| 7-8 | 103,605 | 0.15% | 0.30% |
| 9-10 | 61,964 | 1.45% | 0.43% |
| 11-12 | 48,213 | 1.96% | 0.56% |
| 13-15 | 74,303 | 1.72% | 0.91% |
| 16+ | 129,306 | 2.13% | 0.88% |
Other Jaguar MOT faults that stand out
- Coil spring: fractured or broken · 0.46× comparable cars
- Position lamp: not working · 0.48× comparable cars
- Headlamp: not working on dipped beam · 0.62× comparable cars
Limitations
Official data: DVSA's anonymised MOT results (2023–2024), class 4 initial tests, cars at least 2.5 years old. 73 Auto analysis: the comparison rate applies the national rate of this item for each test's own age, mileage band and fuel to the Jaguar tests. An MOT result reflects maintenance, mileage and how a car is used as well as its design, so this is not a measure of which make is most reliable. The wording of the defect is DVSA's.
Has this Jaguar failed on it before?
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UK number plate or 17-character VIN
Where these figures come from
- Anonymised MOT tests and results (2023 and 2024) — Driver and Vehicle Standards Agency (DVSA). Open Government Licence v3.0.
Figures labelled as 73 Auto estimates are our own analysis of these sources, set out in the methodology and data sources. To report a factual error, see corrections.