2021 Audi A3 MOT pass rate, common failures & what to check
In 2025, 88.7% of Audi A3s first used in 2021 passed their MOT first time, against 87.2% for all cars first used in 2021. Across 42,567 A3 first tests from 2023 to 2025, the most common failure areas were tyres, lamps and electrical equipment and visibility (wipers, washers and windscreen).
This page analyses first MOT tests for Audi A3s first used in 2021 (all trims grouped): 2021 to 2025 for the pass-rate trend, and 2023 to 2025 for the failure and advisory analysis — plus what is worth checking before you buy one.
Data: DVSA anonymised MOT tests to December 2025 · Calculated by SortedCars · Updated October 2026
How the 2021 Audi A3 MOT pass rate has changed
Share of first tests passed in each year, A3s first used in 2021 against all cars first used in 2021 (any make or fuel; not adjusted for mileage, fuel or use). In 2025 the A3 figure was 1.5 points higher.
View this chart as a table
| Test year | 2021 A3 | All cars first used 2021 | A3 first tests |
|---|---|---|---|
| 2021 | fewer than 500 tests | 82.9% | 41 |
| 2022 | fewer than 500 tests | 89.9% | 8 |
| 2023 | 93.4% | 90.8% | 743 |
| 2024 | 88.9% | 87.6% | 21,186 |
| 2025 | 88.7% | 87.2% | 20,638 |
Common 2021 Audi A3 MOT failures
Share of the 4,738 failed first tests (2023–2025) with at least one failure in each area. A test can fail in more than one area, so the shares add up to more than 100%.
Most common failure items
| DVSA failure item | Share of failed first tests | Tests |
|---|---|---|
| Tyre condition: has a cut in excess of the requirements deep enough to reach the ply or cords | 26.5% | 1,257 |
| Tread depth: below requirements of 1.6mm | 15.5% | 735 |
| Tyre condition: has ply or cords exposed | 15.4% | 732 |
| Tyre condition: has a bulge, caused by separation or partial failure of its structure | 7.3% | 346 |
| Shock absorbers: has a serious fluid leak | 5.3% | 251 |
Item names are DVSA’s own wording. 2023–2025 combined.
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Typical repair costs for common MOT failures
Typical UK garage prices for the job, not for an A3 in particular, and not a quote.
| Failure item | Typical job | Typical UK price | Usual range |
|---|---|---|---|
| Shock absorbers: has a serious fluid leak | Shock absorber replacement | £300 | £200–£500 |
From published UK repair-cost guides, checked September 2026. Only jobs with a published typical price are shown.
What to check on a 2021 Audi A3 before buying
The three areas where failed first tests most often had a fault, 2023–2025.
- Tyres. Worth checking the tread depth across the whole width of each tyre, and the sidewalls for cuts, cracks and bulges.
- Lamps and electrics. Ask someone to watch while you work the brake lights, indicators, sidelights, dipped and main beam, and the number-plate lamps.
- Wipers and windscreen. Worth checking that the wipers clear the screen cleanly, that the washers work, and that there are no chips or cracks in the driver’s view.
Common 2021 Audi A3 MOT advisories
Advisories are points the tester noted that did not fail the car. Most common on 2021 A3s, as a share of all 42,567 first tests, 2023–2025.
| DVSA advisory item | Share of first tests | Tests |
|---|---|---|
| Tread depth: worn close to legal limit/worn on edge | 14.6% | 6,230 |
| Tyre condition: slightly damaged/cracking or perishing | 7.1% | 3,010 |
| Shock absorbers: has light misting of oil | 4.3% | 1,846 |
| Brake discs: worn, pitted or scored, but not seriously weakened | 3.7% | 1,568 |
| Tyre condition: has a cut but not deep enough to reach the ply or cords | 3.4% | 1,448 |
Questions about the 2021 Audi A3 MOT
What is the MOT pass rate of a 2021 Audi A3?
In 2025, 88.7% of A3s first used in 2021 passed their MOT first time, against 87.2% for all cars first used in 2021. A car fixed during the test counts as a fail.
What does a 2021 A3 most often fail its MOT on?
Tyres (in 66.0% of failed first tests, 2023–2025), lamps and electrical equipment (11.3%) and visibility (wipers, washers and windscreen) (10.4%). The single most common item was “Tyre condition: has a cut in excess of the requirements deep enough to reach the ply or cords” (26.5%).
How often does a 2021 Audi A3 fail its MOT?
In 2025, 11.3% of first tests on A3s first used in 2021 did not pass first time: 9.8% failed, and a further 1.6% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 4,738 of 42,567 first tests did not pass first time.
What are the most common 2021 Audi A3 MOT advisories?
“Tread depth: worn close to legal limit/worn on edge” (on 14.6% of first tests, 2023–2025), “Tyre condition: slightly damaged/cracking or perishing” (7.1%), “Shock absorbers: has light misting of oil” (4.3%), “Brake discs: worn, pitted or scored, but not seriously weakened” (3.7%) and “Tyre condition: has a cut but not deep enough to reach the ply or cords” (3.4%).
Is a 2021 Audi A3 reliable?
An MOT pass rate shows what failed at the test, not how reliable a car is. For this group of cars the first-time pass rate went from 93.4% in 2023 to 88.7% in 2025. For one particular car, its own MOT history matters more than the average.
Other cars first used in 2021
The most-tested cars from the same year. Each page uses the same method.
2021 Vauxhall Corsa MOT statistics · 2021 Ford Transit Custom MOT statistics · 2021 MINI Hatch MOT statistics · 2021 Tesla Model 3 MOT statistics · 2021 Mercedes-Benz A-Class MOT statistics
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