Jaguar XJ - 2017
90.7 faults per 100 tests
Year average for all cars of 2017 is 137.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Jaguar XJ, model year 2017.
Sample size: 1,100 cars, 2,518 tests and 2,285 recorded faults.
0%
Less faults compared to the average car of same model year
Less faults compared to the average car of same model year
Quick summary
Total: 1,100 cars
The 2017 Jaguar XJ demonstrates a significantly lower overall defect rate compared to the yearly average, with 91 defects per 100 vehicles, which is 32% better than the average of 134. Notably, the model excels in several categories, particularly in brakes and steering, where it outperforms the average by 44% and 97% respectively. Additionally, it has fewer issues related to visibility and lights, showing a clear advantage over its competitors. Mileage trends indicate that defects increase with distance, but the XJ consistently maintains a lower defect rate across all mileage segments compared to the average for its year.
Cars by mileage segment
Total: 1,100 cars
Categories
Brakes
▲ 45.4% better
39.6 faults / 100 tests
Year avg: 72.5 / 100 tests
- Brake lining or pad: worn below 1.5mm
- Brake disc or drum: significantly and obviously worn
- Excessive fluctuation in brake effort through each wheel revolution
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake hose ferrules: excessively corroded
Steering
▲ 96.4% better
0.2 faults / 100 tests
Year avg: 5.6 / 100 tests
- A steering ball joint: with excessive wear or free play
- Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
Visibility
▲ 49.7% better
7.3 faults / 100 tests
Year avg: 14.5 / 100 tests
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Wiper blade: missing or obviously not clearing the windscreen
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Wiper blade: defective
Lights & Electrics
▲ 63.2% better
7.5 faults / 100 tests
Year avg: 20.4 / 100 tests
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
- Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
- The aim of a headlamp is not within limits laid down in the requirements
- The aim of a headlamp is not within limits laid down in the requirements
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has only one lamp or all lamps not working
Wheels & Suspension
▲ 15.3% better
121.2 faults / 100 tests
Year avg: 143.1 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A suspension pin, bush, joint or bearing: excessively worn
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
Body/Structure
▲ 74.3% better
1.8 faults / 100 tests
Year avg: 7.0 / 100 tests
- Exhaust system has a major leak or is insecure
- A driver’s seat: insecure
- Body, cab or chassis: excessively corroded at mounting points
- A body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or insecure
Equipment
▲ 70.4% better
0.8 faults / 100 tests
Year avg: 2.7 / 100 tests
- Seat belt buckle missing, damaged or not functioning as intended
- Seat belt buckle missing, damaged or not functioning as intended
- A seat belt:
- A seat belt:
- A statutory seat belt missing
Other
▲ 66.7% better
3.0 faults / 100 tests
Year avg: 9.0 / 100 tests
- Engine MIL inoperative or indicating a malfunction
- Engine MIL inoperative or indicating a malfunction
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Smoke opacity levels exceed default limit
- Engine MIL inoperative or indicating a malfunction
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 823
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 182
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 175
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 161
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 130
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 94
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 66
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 51
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 45
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 45
Serious faults (Top 10)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 51
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 45
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 45
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 23
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 21
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 18
Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
FAIL
Occurrences: 10
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 9
A rear registration plate lamp or light source missing or inoperative: when rear registration plate has only one lamp or all lamps not working
FAIL
Occurrences: 7
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 7