Known APK problem
Ford Focus IV: warning lights
On the Ford Focus IV the APK inspector finds warning lights problems 2.7× as often as on cars of the same age: at 3–4 years 0.8%, against about 0.3% nationally.
Window: Oct 2025 – Sep 2026 · Updated: 16 Oct 2026
What is it?
A warning light that stays on (for example ABS, airbag or engine fault) points to a fault that has to be read out first.
How to check it at the viewing
Switch on the ignition: all lights come on briefly and go out after starting. If one stays on, ask about the cause.
Ask the seller: Does a warning light ever come on, and has the fault been read out?
By age
Share of inspected Ford Focus IVs with this defect, compared with all cars of the same age.
| Age | Type | Focus IV | National | Difference |
|---|---|---|---|---|
| 3 – 4 years | B | 0.8% | 0.3% | 2.7× |
| 5 – 6 years | B | 0.4% | 0.5% | 0.8× |
| 7 – 8 years | B | 0.3% | 0.4% | 0.7× |
A = structure, safety or costly mechanics; B = fail, usually simple; C = advisory. An age is missing when this defect is not among the most common there.
Comparable cars at 3–4 years
| Model | Warning lights | Vs. national |
|---|---|---|
| Ford Focus IV | 0.8% | 2.7× |
| Volkswagen Golf VIII | 0.2% | 0.7× |
| Toyota Corolla XII (E21) | 0.8% | 2.6× |
| Volkswagen ID.3 | 0.5% | 1.5× |
Looking at a Ford Focus IV? Check that car
Enter the plate and see the APK history, open recalls and how this car compares with other Ford Focus IVs of the same age.
All weak spots of the Ford Focus IV · Warning lights: which models more often · Checklist for this model
Frequently asked questions
Does the Ford Focus IV often have warning lights problems?
Yes, more often than average at the APK. At 3–4 years the inspector found a warning lights defect on 0.8% of inspected Ford Focus IVs, against about 0.3% of all cars of the same age (2.7×). Source: RDW Open Data, Oct 2025 – Sep 2026.
How do you check the warning lights on a used Ford Focus IV?
Switch on the ignition: all lights come on briefly and go out after starting. If one stays on, ask about the cause.
Repair indication: small, medium or large. An indication of the usual repair, not a quote: the real cost depends on the car, the cause and the garage.
Source: RDW Open Data (CC0), analysis CarXray.nl. 6,857,004 inspected passenger cars aged 3 years and older, Oct 2025 – Sep 2026. Each car counts once. How we know