2020 Ford Mondeo St-Line Hev Auto — MOT failures & pass rate
Across 668 MOT tests analysed for the 2020 Ford Mondeo St-Line Hev Auto, the most common recorded failure areas were tyres, visibility and lighting & signalling. Its pass rate of 88.6% was below the average for cars of a similar age (90.6%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 7.6% | 51 |
| 2 | Visibility | 3.4% | 23 |
| 3 | Lighting & signalling | 2.5% | 17 |
| 4 | Brakes | 1.7% | 11 |
| 5 | Suspension | 0.1% | 1 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 27 |
| 2 | Tread depth | 13 |
| 3 | Headlamp aim | 8 |
| 4 | Service brake performance | 7 |
| 5 | Registration plate lamp(s) | 6 |
| 6 | Brake pads | 4 |
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 | 24.6% | 164 |
| 2 | Brakes | 14.4% | 96 |
| 3 | Other defects | 3.1% | 21 |
| 4 | Visibility | 2.3% | 15 |
| 5 | Lighting & signalling | 1.8% | 12 |
| 6 | Road wheels | 0.6% | 4 |
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 | 238 | 8.4% |
| 30-60k | 285 | 14.0% |
| 60-90k | 111 | 9.9% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 215 | 10.2% |
| 2024 | 233 | 15.0% |
| 2025 | 209 | 8.6% |
What to check before buying a 2020 Mondeo St-Line Hev Auto
Before buying a 2020 Ford Mondeo St-Line Hev Auto, focus on the areas it most often fails on. Tyres accounted for 7.6% of tests for this year.
- Tyres (7.6% 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.
- Visibility (3.4% 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.
- Lighting & signalling (2.5% 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 2020 Ford Mondeo St-Line Hev Autos pass their MOT?
88.6% of the 668 2020 Ford Mondeo St-Line Hev Auto MOT tests in this dataset passed — a 11.4% fail rate.
What is the most common MOT failure on a 2020 Ford Mondeo St-Line Hev Auto?
Tyres, recorded in 7.6% of tests, followed by visibility (3.4%).
Does the 2020 Mondeo St-Line Hev Auto get worse with mileage?
Its MOT fail rate rises from 8.4% in the 0-30k band to 9.9% in the 60-90k band.
Methodology & source. Based on 668 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.