2000 Audi A3 — MOT failures & pass rate
Across 4,751 MOT tests, the 2000 Audi A3 recorded a 72.5% pass rate. Small family cars of a similar age fail at 27.7%, so the 2000 A3 sits squarely on the average. Failures cluster in lighting & signalling, suspension and brakes.
What the MOT record shows
Lighting & signalling dominates the failure mix at 15.1% of all tests — 3.4 points clear of suspension, so it is the first thing to check.
At component level the recurring items are catalyst emissions, pins and bushes and headlamp aim — catalyst emissions alone was recorded 412 times.
A 150k+ example is materially riskier than a 0-30k one: 29.4% versus 15.2%.
Split by fuel, diesel examples fail 3.2pp more often than petrol ones (30.3% vs 27.1%) — worth weighing if you have a choice.
Advisories point at the next bill rather than this one: brakes was flagged on 39.6% of tests without failing them.
The trend is improving — the fail rate fell from 29.2% in 2021 to 25.6% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 15.1% | 716 |
| 2 | Suspension | 11.7% | 554 |
| 3 | Brakes | 11.5% | 544 |
| 4 | Emissions & environmental | 7.7% | 365 |
| 5 | Body, structure & corrosion | 5.6% | 266 |
| 6 | Visibility | 5.5% | 262 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Catalyst emissions | 412 |
| 2 | Pins and bushes | 308 |
| 3 | Headlamp aim | 298 |
| 4 | Stop lamp | 227 |
| 5 | Coil spring | 192 |
| 6 | Position lamp | 186 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Brakes | 39.6% | 1,884 |
| 2 | Suspension | 37.2% | 1,769 |
| 3 | Tyres | 26.1% | 1,241 |
| 4 | Other defects | 22.2% | 1,054 |
| 5 | Emissions & environmental | 19.1% | 910 |
| 6 | Body, structure & corrosion | 16.1% | 765 |
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 | 46 | 15.2% |
| 30-60k | 273 | 19.4% |
| 60-90k | 726 | 27.7% |
| 90-120k | 1,019 | 27.0% |
| 120-150k | 1,227 | 28.0% |
| 150k+ | 1,452 | 29.4% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 4,071 | 27.1% |
| Diesel | 680 | 30.3% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 1,444 | 29.2% |
| 2022 | 1,126 | 27.0% |
| 2023 | 915 | 27.0% |
| 2024 | 703 | 27.3% |
| 2025 | 563 | 25.6% |
What to check before buying a 2000 A3
On a 2000 A3, lighting & signalling is what the MOT record says goes wrong most — it appeared in 15.1% of tests. Check these areas before you commit.
- Lighting & signalling (15.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (11.7% 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 (11.5% 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 2000 Audi A3s pass their MOT?
72.5% of the 4,751 2000 Audi A3 MOT tests in this dataset passed — a 27.6% fail rate.
What is the most common MOT failure on a 2000 Audi A3?
Lighting & signalling, recorded in 15.1% of tests, followed by suspension (11.7%).
Does the 2000 A3 get worse with mileage?
Its MOT fail rate rises from 15.2% in the 0-30k band to 29.4% in the 150k+ band.
Methodology & source. Based on 4,751 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.