MOT reliability
Ford Sierr
7 vehicles · 29 completed MOT tests analysed
72%
MOT pass rate
Based on 7 Ford Sierr vehicles and 29 completed MOT tests, the Ford Sierr has an overall 72% pass rate, with an average recorded mileage of 65,454 miles.
7
Vehicles
29
MOT tests
9,159
Avg miles / year
1.3
Faults per test
0%
Dangerous-fault share
Ford Sierr problem areas
Where faults occur most across all Ford Sierr MOT tests:
-
Other131%
-
Brakes5%
-
Emissions & nuisance5%
Ford Sierr pass rate by age
| Age (years) | Tests | Pass rate |
|---|---|---|
| 13 | 3 | 100% |
| 14 | 8 | 75% |
| 15 | 8 | 62% |
| 16 | 5 | 80% |
| 17 | 5 | 60% |
Fuel types: Petrol (6), Diesel (1)
Most common Ford Sierr MOT faults
These are the faults and advisories recorded most often across Ford Sierr MOT tests:
- Service brake: efficiency below requirements (3.7.B.7) (2 times)
- Nearside Rear Subframe mounting prescribed area is excessively corroded (2.4.A.3) (2 times)
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1) (1 times)
- front shock absorbers becoming weak (1 times)
- Exhaust has part of the system slightly deteriorated (7.1.1a) (1 times)
- Nearside Front Brake pad(s) wearing thin (3.5.1g) (1 times)
- Nearside Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i) (1 times)
- Offside Front Brake pad(s) wearing thin (3.5.1g) (1 times)
- Offside Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i) (1 times)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1) (1 times)
- Offside Rear rear brake binding (3.7.B.1) (1 times)
- ADVISE O/S REAR TYRE WEARING ON IN NER EDGE (1 times)
- Nearside Front Headlamp aim too low and too far to the left. (1.8) (1 times)
- Nearside Front Headlamp not working on main beam (1.7.5a) (1 times)
- Nearside Rear Tyre tread depth below requirements of 1.6mm (4.1.E.1) (1 times)
Ford Sierr pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 1993 | 3 | 10 | 80% | 72,575 |
| 1992 | 4 | 19 | 68% | 60,114 |
Ford Sierr reliability FAQ
Across 7 Ford Sierr vehicles in our MOT data,
72% pass the MOT (a 28% failure rate), with about
1.3 faults or advisories recorded per test.
The most frequently recorded Ford Sierr MOT issues are:
Service brake: efficiency below requirements (3.7.B.7); Nearside Rear Subframe mounting prescribed area is excessively corroded (2.4.A.3); Nearside Rear Tyre worn close to the legal limit (4.1.E.1).
The typical Ford Sierr in our data has covered around
65,454 miles.
Compare the Ford Sierr
See how the Ford Sierr stacks up against other Ford models on MOT reliability:
Check a specific Ford Sierr
Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.
See all Ford models · Learn about common MOT failures · what an MOT checks