Top three failure systems, annotated from 45 failed first-time tests. Arrows point to where the defect is found on the car.
What fails a Ford Mondeo: tyre tread depth not in accordance with the requirements, 16 times in a year
370 inspections in a single year make the MONDEO a modestly documented electric car in the data. Lighting cause 30.5% of its failures; lighting take 1.8× the share they take on petrol and diesel cars of the same age.
The eight-year vs nine-year picture
MONDEO failure rate. Petrol cars of the same age fail 17.5%.
MONDEO failure rate, against 19.9% for petrol.
The Ford Mondeo fails 12.2% of first-time inspections. By 9 years that reaches 14.2%. Lighting cause 30.5% of its failures.
The lamp that fails the test
Lighting take 30.5% of the defects that fail this car, 1.8× the share seen on petrol and diesel cars of the same age. The most common item in that group is "A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources", recorded 8 times in 2024.
Where it concentrates
The MONDEO stays under the petrol fleet at every age we can measure. What it does fail on is unusually concentrated.
What to check
Check tyre age and tread across the full width, inner edge included. Electric cars wear tyres faster; a cheap mismatched set on a used car tells you how it was run. Ask for the full MOT history by registration on the free DVSA service: advisories are next year's failures.
Points hidden where fewer than 50 cars of that age were tested. Dashed lines are the same-age petrol and diesel fleets.
- Inspections
- 370
- Passed
- 314
- Failed
- 45
- Passed after repair
- 11
- Failure rate
- 12.2% (all EV 12.0%)
- Average age
- 8.6 years
- Best year
- 8 yrs · 8.9%
- Worst year
- 9 yrs · 14.2%
- Top cause
- Lighting 30.5%
| System | This car (mark = petrol/diesel) | Share | vs petrol/diesel |
|---|---|---|---|
| Tyres | 29.1% | in line | |
| Suspension | 9.2% | 1.5× less | |
| Brakes | 5.7% | 3.3× less | |
| Visibility | 7.1% | 1.7× less | |
| Lighting | 30.5% | 1.8× more | |
| Steering | 5.7% | 1.8× more | |
| Body | 2.1% | 2.0× less |
- Tyre tread depth not in accordance with the requirements16
- A wheel with a loose or missing wheel nut, bolt or stud13
- A tyre cords visible or damaged12
- A tyre seriously damaged8
- A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources8
- A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps8
Wording as printed by the tester, from the DVSA inspection manual.
- Suspension fail less often than on petrol and diesel cars (9.2% of defects vs 13.6%)
- Brakes fail less often than on petrol and diesel cars (5.7% of defects vs 18.7%)
- Visibility fail less often than on petrol and diesel cars (7.1% of defects vs 11.9%)
- Body fail less often than on petrol and diesel cars (2.1% of defects vs 4.1%)
- Lighting take a bigger share of failures than on petrol and diesel cars of the same age (30.5% vs 16.5%)
- Steering take a bigger share of failures than on petrol and diesel cars of the same age (5.7% vs 3.1%)
- MONDEO370
Summaries written by us, never quotes; every entry links to its source. Owner reports have no denominator and never feed the failure rate.
- 370 inspections in 2024 make this one of the adequately-documented electric cars in the data.
- Lighting take 1.8× the share of failures they take on petrol and diesel cars of the same age.
- Failure rate rises from 8.9% at 8 years to 14.2% at 9: a gentle ageing curve.
No battery health, no motor, no charging performance. The test covers brakes, suspension, steering, tyres, lights, visibility and structure. A car with a badly degraded battery passes as long as it stops and steers. Read this page as evidence about the chassis, not the powertrain. Cars are tested from their third year, so the newest model years are missing; every figure carries its sample size for that reason. Full methodology.