Jaguar XJS - 1988
180.4 faults per 100 tests
Year average for all cars of 1988 is 253.5 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Jaguar XJS, model year 1988.
Sample size: 306 cars, 545 tests and 983 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: 306 cars
The 1988 Jaguar XJS has an overall defect rate of 180 per 100 vehicles, which is significantly lower than the average of 249 per 100, representing a 27.5% improvement. Notably, it performs better in categories such as brakes, steering, and body/structure compared to the yearly averages, with defects in these areas being 41.5%, 33.3%, and 48.6% lower, respectively. However, the defect rates increase with mileage, particularly in the 93,000 to 124,000 miles range, where the rate peaks at 467 per 100. While tyre wear is common, this model stands out positively in maintenance-related aspects, demonstrating its reliability in several critical categories.
Cars by mileage segment
Total: 306 cars
More model years for Jaguar XJS
Other models from Jaguar
Categories
Brakes
▲ 42.5% better
54.7 faults / 100 tests
Year avg: 95.2 / 100 tests
- Parking brake efficiency: less than 50% of the required value
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake pipe damaged or excessively corroded
- Excessive fluctuation in brake effort through each wheel revolution
- Significant brake effort recorded with no brake applied indicating a binding brake
Steering
▲ 34.6% better
18.3 faults / 100 tests
Year avg: 28.0 / 100 tests
- Power steering fluid leaking or system malfunctioning
- A steering ball joint: with excessive wear or free play
- 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.
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
Visibility
▲ 40.2% better
12.8 faults / 100 tests
Year avg: 21.4 / 100 tests
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Wiper blade: missing or obviously not clearing the windscreen
- Wiper not operating or missing
- 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
Lights & Electrics
▲ 42.3% better
37.1 faults / 100 tests
Year avg: 64.3 / 100 tests
- The aim of a headlamp is not within limits laid down in the requirements
- Headlamp reflector or lens: slightly defective
- A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 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
- The aim of a headlamp is not within limits laid down in the requirements
Wheels & Suspension
▲ 13.5% better
139.4 faults / 100 tests
Year avg: 161.2 / 100 tests
- A wheel bearing: with excessive play
- A suspension pin, bush, joint or bearing: excessively worn
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A spring: or spring component fractured or seriously weakened
- Tyre tread depth not in accordance with the requirements
Body/Structure
▲ 50.2% better
31.9 faults / 100 tests
Year avg: 64.0 / 100 tests
- Exhaust system has a major leak or is insecure
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- 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
Equipment
▲ 30.8% better
12.8 faults / 100 tests
Year avg: 18.5 / 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
- Seat belt buckle missing, damaged or not functioning as intended
- Audible warning:
- A seat belt: or flexible stalk damaged
- Audible warning:
Other
▲ 1.3% better
53.6 faults / 100 tests
Year avg: 54.3 / 100 tests
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Emissions levels exceed default limits
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- Emissions levels exceed default limits
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
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: 129
A wheel bearing: with excessive play
ADVISORY
Occurrences: 84
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 63
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 55
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 40
Significant brake effort recorded with no brake applied indicating a binding brake
ADVISORY
Occurrences: 37
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 34
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 32
Power steering fluid leaking or system malfunctioning
ADVISORY
Occurrences: 30
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
ADVISORY
Occurrences: 27
Serious faults (Top 10)
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 14
Emissions levels exceed default limits
FAIL
Occurrences: 12
Audible warning:
FAIL
Occurrences: 12
Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
FAIL
Occurrences: 9
Parking brake efficiency: less than 50% of the required value
FAIL
Occurrences: 9
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 9
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 9
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 8
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 8
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 8