2003 Citroen C3 — MOT failures & pass rate
25,733 MOT tests on the 2003 Citroen C3 are in this dataset, and 67.9% of them passed. Superminis of a similar age fail 29.3% of the time, so this is 2.7pp worse than the group it competes with. Failures cluster in lighting & signalling, suspension and brakes.
What the MOT record shows
Lighting & signalling dominates the failure mix at 22.6% of all tests — 3.4 points clear of suspension, so it is the first thing to check.
At component level the recurring items are headlamp aim, component mounting prescribed areas and headlamp — headlamp aim alone was recorded 2,819 times.
A 150k+ example is materially riskier than a 0-30k one: 35.4% versus 18.4%.
Fuel type barely separates them — petrol fails 32.0% of the time against 32.3% for diesel.
Advisories point at the next bill rather than this one: suspension was flagged on 32.5% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 22.6% | 5,820 |
| 2 | Suspension | 19.2% | 4,951 |
| 3 | Brakes | 8.9% | 2,283 |
| 4 | Visibility | 7.4% | 1,903 |
| 5 | Body, structure & corrosion | 7.3% | 1,867 |
| 6 | Tyres | 6.5% | 1,666 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 2,819 |
| 2 | Component mounting prescribed areas | 2,533 |
| 3 | Headlamp | 2,358 |
| 4 | Coil spring | 1,862 |
| 5 | Individual direction indicators | 1,505 |
| 6 | Wipers | 1,351 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Suspension | 32.5% | 8,363 |
| 2 | Tyres | 31.3% | 8,044 |
| 3 | Brakes | 29.8% | 7,659 |
| 4 | Lighting & signalling | 25.3% | 6,519 |
| 5 | Emissions & environmental | 16.5% | 4,241 |
| 6 | Other defects | 16.2% | 4,175 |
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 | 593 | 18.4% |
| 30-60k | 4,686 | 26.6% |
| 60-90k | 9,436 | 31.5% |
| 90-120k | 7,132 | 35.1% |
| 120-150k | 2,859 | 36.9% |
| 150k+ | 1,009 | 35.4% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 20,855 | 32.0% |
| Diesel | 4,878 | 32.3% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 8,576 | 32.8% |
| 2022 | 6,285 | 31.6% |
| 2023 | 4,788 | 31.8% |
| 2024 | 3,508 | 31.7% |
| 2025 | 2,576 | 31.8% |
What to check before buying a 2003 C3
On a 2003 C3, lighting & signalling is what the MOT record says goes wrong most — it appeared in 22.6% of tests. Check these areas before you commit.
- Lighting & signalling (22.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (19.2% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
- Brakes (8.9% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
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 2003 Citroen C3s pass their MOT?
67.9% of the 25,733 2003 Citroen C3 MOT tests in this dataset passed — a 32.1% fail rate.
What is the most common MOT failure on a 2003 Citroen C3?
Lighting & signalling, recorded in 22.6% of tests, followed by suspension (19.2%).
Does the 2003 C3 get worse with mileage?
Its MOT fail rate rises from 18.4% in the 0-30k band to 35.4% in the 150k+ band.
Methodology & source. Based on 25,733 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.