Ford Sierra MOT Failure Rate — 15+ Years Old
Ford Sierra shows good reliability at this age, with a 14.8% failure rate — below the national average.
Component Risk Breakdown (15+ Years)
Which parts of a 15+-year-old Ford Sierra are most likely to cause an MOT failure:
How Does This Compare?
Ford Sierra MOT failure rate across all age groups:
| Age | Failure Rate | Tests | Worst Area |
|---|---|---|---|
| 15+ years | 14.8% | 14,836 | Lamps & Electrics |
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Frequently Asked Questions
Is a 15+ year old Ford Sierra reliable?
Yes. Based on 14,836 MOT tests, 15+-year-old Ford Sierra vehicles have a 14.8% failure rate, which is below the UK average of 28%. This is a reliable choice at this age.
What are the common MOT failures on a 15+ year old Ford Sierra?
The most common MOT failure areas at this age are:
- Lamps & Electrics — 3.9% failure risk
- Suspension — 2.7% failure risk
- Brakes — 2.1% failure risk
How can I prepare my Ford Sierra for its MOT?
For a 15+-year-old Ford Sierra, focus on: (1) Lamps & Electrics — the most common failure area at this age. (2) Check all lights and bulbs. (3) Inspect tyres for tread depth and damage. (4) Consider a pre-MOT check at a local garage (£20–£40). You can also use our free prediction tool for a personalised risk breakdown.
Other Ford Sierra Age Groups
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Data methodology: Failure rates are weighted averages across all mileage bands for the 15+-year age group, calculated from official DVSA MOT test records. Only combinations with 100+ tests are included. Data covers 142 million MOT tests across the UK.
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