Ford SIERRA - 1988
106.6 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 Ford SIERRA, model year 1988.
Sample size: 338 cars, 557 tests and 594 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: 338 cars
The 1988 Ford Sierra shows a significantly lower overall defect rate compared to the average car of the same year, with 107 defects per 100 vehicles, which is 57% better than the average of 249 defects per 100 vehicles. This model excels particularly in categories such as brakes and steering, where its rates are substantially lower than average, indicating better performance in these areas. However, as mileage increases, defects tend to rise in a similar pattern to the general trend, with higher mileage categories having more recorded defects than lower mileage ones. Overall, the Sierra stands out for its reliability in several key areas, making it a commendable choice among its peers from the same year.
Cars by mileage segment
Total: 338 cars
More model years for Ford SIERRA
Other models from Ford
Categories
Brakes
▲ 52.8% better
44.9 faults / 100 tests
Year avg: 95.2 / 100 tests
- Brake pipe damaged or excessively corroded
- Significant brake effort recorded with no brake applied indicating a binding brake
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake hose ferrules: excessively corroded
- Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
Steering
▲ 53.9% better
12.9 faults / 100 tests
Year avg: 28.0 / 100 tests
- Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
- A steering ball joint: with excessive wear or free play
- Free play in the steering, measured at the rim of the steering wheel is: excessive
- Power steering fluid leaking or system malfunctioning
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
Visibility
▲ 68.2% better
6.8 faults / 100 tests
Year avg: 21.4 / 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: defective
- Wiper blade: missing or obviously not clearing the windscreen
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 71.5% better
18.3 faults / 100 tests
Year avg: 64.3 / 100 tests
- Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
- A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
- A lamp adversely affected by the operation of any other lamp
- The aim of a headlamp is not within limits laid down in the requirements
- Headlamp reflector or lens: slightly defective
Wheels & Suspension
▲ 53.2% better
75.4 faults / 100 tests
Year avg: 161.2 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A suspension pin, bush, joint or bearing: excessively worn
- 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 spring: or spring component fractured or seriously weakened
Body/Structure
▲ 60.2% better
25.5 faults / 100 tests
Year avg: 64.0 / 100 tests
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- A transmission shaft constant velocity joint boot: severely deteriorated
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- Exhaust system has a major leak or is insecure
- Body, cab or chassis: excessively corroded at mounting points
Equipment
▲ 78.9% better
3.9 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
- Audible warning:
- Audible warning:
Other
▲ 53.0% better
25.5 faults / 100 tests
Year avg: 54.3 / 100 tests
- Emissions levels exceed default limits
- 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
- Exhaust noise levels in excess of those permitted
- Engine is idling clearly above its normal idle speed
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 43
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 41
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 35
Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
ADVISORY
Occurrences: 29
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 26
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
ADVISORY
Occurrences: 25
Emissions levels exceed default limits
FAIL
Occurrences: 21
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 20
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 20
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 18
Serious faults (Top 10)
Emissions levels exceed default limits
FAIL
Occurrences: 21
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 11
Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 8
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 8
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 6
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
FAIL
Occurrences: 6
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 6
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 5
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 5
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 5