2021 Ford Allied — MOT failures & pass rate
The 2021 Ford Allied passed 83.5% of its 968 recorded MOT tests. All cars of a similar age fail 8.6% of the time, so this is 7.9pp worse than the group it competes with. Failures cluster in visibility, tyres and lighting & signalling.
What the MOT record shows
No single area dominates — visibility (8.3%) and tyres (8.2%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are wipers, tyre pressure monitoring system and brake pads — wipers alone was recorded 66 times.
Advisories point at the next bill rather than this one: tyres was flagged on 15.1% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Visibility | 8.3% | 80 |
| 2 | Tyres | 8.2% | 79 |
| 3 | Lighting & signalling | 4.0% | 39 |
| 4 | Brakes | 3.1% | 30 |
| 5 | Suspension | 1.5% | 14 |
| 6 | Body, structure & corrosion | 1.2% | 12 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 66 |
| 2 | Tyre pressure monitoring system | 51 |
| 3 | Brake pads | 23 |
| 4 | Washers | 20 |
| 5 | Headlamp aim | 18 |
| 6 | Linkage pins and bushes | 12 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 15.1% | 146 |
| 2 | Brakes | 11.9% | 115 |
| 3 | Other defects | 8.9% | 86 |
| 4 | Visibility | 7.5% | 73 |
| 5 | Lighting & signalling | 4.9% | 47 |
| 6 | Suspension | 2.2% | 21 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 575 | 13.0% |
| 30-60k | 359 | 22.3% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 471 | 17.6% |
| 2025 | 474 | 15.8% |
What to check before buying a 2021 Allied
On a 2021 Allied, visibility is what the MOT record says goes wrong most — it appeared in 8.3% of tests. Check these areas before you commit.
- Visibility (8.3% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
- Tyres (8.2% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Lighting & signalling (4.0% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2021 Ford Allieds pass their MOT?
83.5% of the 968 2021 Ford Allied MOT tests in this dataset passed — a 16.5% fail rate.
What is the most common MOT failure on a 2021 Ford Allied?
Visibility, recorded in 8.3% of tests, followed by tyres (8.2%).
Does the 2021 Allied get worse with mileage?
Its MOT fail rate rises from 13.0% in the 0-30k band to 22.3% in the 30-60k band.
Methodology & source. Based on 968 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.