Jaguar XJS - 1986
200.7 faults per 100 tests
Year average for all cars of 1986 is 241.8 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Jaguar XJS, model year 1986.
Sample size: 164 cars, 302 tests and 606 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: 164 cars
The 1986 Jaguar XJS has an overall defect rate of 201 per 100 vehicles, which is 16% lower than the average for cars of the same year. Notably, it performs better than average in key areas such as steering, lights and electrics, body/structure, and equipment, with significantly lower defect rates in each of these categories. However, the defect rate increases with mileage, particularly in the highest mileage group, where it reaches 675 per 100 vehicles. Overall, this model demonstrates a commendable reliability compared to its peers from the same year.
Cars by mileage segment
Total: 164 cars
More model years for Jaguar XJS
Other models from Jaguar
Categories
Brakes
▲ 19.6% better
70.9 faults / 100 tests
Year avg: 88.2 / 100 tests
- Parking brake efficiency: below minimum requirement
- Significant brake effort recorded with no brake applied indicating a binding brake
- Brake pipe damaged or excessively corroded
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Significant brake effort recorded with no brake applied indicating a binding brake
Steering
▲ 29.3% better
21.2 faults / 100 tests
Year avg: 30.0 / 100 tests
- Power steering fluid leaking or system malfunctioning
- Power steering fluid leaking or system malfunctioning
- Free play in the steering, measured at the rim of the steering wheel is: excessive
- Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
Visibility
▲ 21.1% better
17.2 faults / 100 tests
Year avg: 21.8 / 100 tests
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Wiper blade: defective
- Wiper not operating or missing
- Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 24.1% better
45.7 faults / 100 tests
Year avg: 60.2 / 100 tests
- A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
- A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
- The aim of a headlamp is not within limits laid down in the requirements
- Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
Wheels & Suspension
▼ 0.1% worse
157.6 faults / 100 tests
Year avg: 157.4 / 100 tests
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
- A wheel bearing: with excessive play
- A spring: or spring component fractured or seriously weakened
- A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▲ 39.5% better
33.1 faults / 100 tests
Year avg: 54.7 / 100 tests
- Exhaust system has a major leak or is insecure
- A transmission: joint, belt or chain excessively worn
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- Body, cab or chassis: excessively corroded at mounting points
- Exhaust system has a major leak or is insecure
Equipment
▲ 84.6% better
2.6 faults / 100 tests
Year avg: 16.9 / 100 tests
- is significantly reduced or The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a ’prescribed area’): inadequately repaired
- is significantly reduced or The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a ’prescribed area’): inadequately repaired
- Audible warning:
Other
▲ 2.0% better
53.0 faults / 100 tests
Year avg: 54.1 / 100 tests
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Emissions levels exceed default limits
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 67
A wheel bearing: with excessive play
ADVISORY
Occurrences: 59
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 33
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 27
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 23
Significant brake effort recorded with no brake applied indicating a binding brake
ADVISORY
Occurrences: 21
Power steering fluid leaking or system malfunctioning
ADVISORY
Occurrences: 19
Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
ADVISORY
Occurrences: 18
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 18
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 16
Serious faults (Top 10)
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 23
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 16
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 11
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 10
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 9
Emissions levels exceed default limits
FAIL
Occurrences: 9
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 9
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 9
Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 7
Wiper not operating or missing
FAIL
Occurrences: 5