Family hatchback · 1996–2021 cars
Audi A3 reliability
The Audi A3 fails 24.4% of first MOT tests, 19% fewer MOT fails than the average car its age and mileage, based on 1,423,755 DVSA MOT tests from 2022 to 2024.
Checking a Audi A3 before you buy?
- first-time MOT fail rate (all cars: 28.4%)
- 24.4%
- first-time MOT fail rate (all cars: 28.4%)
- fails than cars of the same age and mileage
- 19% fewer
- fails than cars of the same age and mileage
- MOT tests analysed, 2022 to 2024
- 1,423,755
- MOT tests analysed, 2022 to 2024
- typical miles a year, from MOT readings
- 9,100
- typical miles a year, from MOT readings
What this means for buyers
The Audi A3 ranks 10 of 65 family hatchback models for MOT results. Its first-time fail rate is 24.4%, against 28.4% for all cars. Compared with cars of the same age and mileage, it has 19% fewer MOT fails, so it's a sound choice. The year matters too. 2016 models have 35% fewer MOT fails than comparable cars, while 1998 models have 13% more, so check the year before you buy.
Tyres are the weak spot, with 5% more fails than comparable cars. Tyre tread below 1.6mm is one of the most common failures, at 2.52% of tests. Also check the coil spring, the most common failure at 2.75% of tests, plus brake pads worn below 1.5mm (1.56%) and CV joint boots that are split or loose (1.51%). A good A3 can still be a great buy if you check these first.
MOT fail rate by age
How the Audi A3 ages
Each point is the share of Audi A3s of that age that failed their MOT first time, against all cars of the same age.
| Age at MOT (years) | Audi A3 | All cars |
|---|---|---|
| 3 | 10.2% | 12.3% |
| 4 | 10.8% | 14.1% |
| 5 | 11.7% | 16.4% |
| 6 | 13.4% | 19.1% |
| 7 | 15.4% | 22.1% |
| 8 | 18% | 25.5% |
| 9 | 21.4% | 28.8% |
| 10 | 25.5% | 31.8% |
| 11 | 30.2% | 34.6% |
| 12 | 34.2% | 37.3% |
| 13 | 36% | 39.5% |
| 14 | 38% | 41.1% |
| 15 | 39.8% | 42.3% |
| 16 | 41.3% | 42.9% |
| 17 | 42.9% | 43.4% |
| 18 | 44.9% | 43.5% |
| 19 | 45.2% | 43.4% |
| 20 | 44.1% | 42.8% |
| 21 | 43.4% | 41.4% |
| 22 | 41.4% | 40.6% |
| 23 | 38.7% | 38.9% |
| 24 | 42.1% | 37.1% |
| 25 | 43% | 35.8% |
By year
The best and worst Audi A3 years
2016 cars come out best and 1998 cars worst, once age and mileage are taken into account.
| First registered | Tests | Fail rate | Against same-age cars | Typical mileage |
|---|---|---|---|---|
| 2021 A3 | 8,897 | 8.6% | 29% fewer fails | 27,409 |
| 2020 A3 | 30,419 | 9.9% | 22% fewer fails | 29,865 |
| 2019 A3 | 61,114 | 10.6% | 25% fewer fails | 34,732 |
| 2018 A3 | 98,834 | 10.9% | 30% fewer fails | 39,722 |
| 2017 A3 | 122,750 | 12.3% | 34% fewer fails | 48,922 |
| 2016 A3 | 138,221 | 13.9% | 35% fewer fails | 57,834 |
| 2015 A3 | 145,317 | 16.8% | 33% fewer fails | 67,698 |
| 2014 A3 | 136,316 | 19.9% | 30% fewer fails | 78,279 |
| 2013 A3 | 95,189 | 23.7% | 27% fewer fails | 90,026 |
| 2012 A3 | 88,344 | 29.9% | 16% fewer fails | 99,129 |
| 2011 A3 | 76,104 | 32.9% | 14% fewer fails | 108,647 |
| 2010 A3 | 88,524 | 35.5% | 12% fewer fails | 108,888 |
| 2009 A3 | 83,675 | 36.4% | 14% fewer fails | 117,396 |
| 2008 A3 | 72,681 | 39.4% | 10% fewer fails | 123,597 |
| 2007 A3 | 58,853 | 41.1% | 8% fewer fails | 131,772 |
| 2006 A3 | 48,522 | 43.4% | 4% fewer fails | 134,076 |
| 2005 A3 | 33,730 | 44.3% | 3% fewer fails | 137,023 |
| 2004 A3 | 15,403 | 46.6% | 3% more fails | 133,873 |
| 2003 A3 | 7,143 | 44.8% | 0% fewer fails | 133,992 |
| 2002 A3 | 5,211 | 44.8% | 1% more fails | 137,420 |
| 2001 A3 | 3,616 | 42% | 2% fewer fails | 127,765 |
| 2000 A3 | 2,220 | 42.6% | 2% more fails | 127,528 |
| 1999 A3 | 1,398 | 38.6% | 4% fewer fails | 124,961 |
| 1998 A3 | 1,057 | 42.6% | 13% more fails | 112,582 |
| 1997 | 211 | 39.8% | 7% more fails | 115,697 |
Common problems
What fails most on a Audi A3
Failures by area, against cars of the same age and mileage.
Fail rate by area
- Suspension8.2%18% below avg
- Lights and electrics8.1%34% below avg
- Tyres7.2%5% above avg
- Brakes5.4%26% below avg
- Exhaust, emissions and leaks3.1%12% below avg
- Windscreen, wipers and mirrors3%37% below avg
- Body, chassis and structure2.9%24% below avg
- Seat belts and airbags1%10% below avg
- Steering0.4%80% below avg
Average for cars of the same age and mileage
Top MOT failures
- 1
Coil spring fractured or broken 2.75% of tests
A broken coil spring can leave the car sitting low or unstable, so it must be replaced before driving.
- 2
Tyre tread below 1.6mm 2.52% of tests
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
- 3
Brake pads worn below 1.5mm 1.56% of tests
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
- 4
CV joint boot split or insecure 1.51% of tests
A split CV boot lets dirt in and grease out, so the joint wears and may need full replacement.
- 5
Anti-roll bar linkage dust cover unsealed 1.49% of tests
A damaged dust cover lets dirt into the linkage joint, speeding wear and possibly needing a future repair.
- 6
Tyre ply or cords exposed 1.39% of tests
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
- 7
Headlamp beam pattern obviously incorrect 1.36% of tests
A wrongly shaped beam can dazzle other drivers and reduce your own view of the road, so the lamps need correcting.
- 8
Tyre cut reaching ply or cords 1.23% of tests
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Most common advisories
Not a fail yet, but worth pricing in: these show up on a Audi A3's MOT certificate most often.
- Tyre worn close to legal limit14.41%
- Brake disc pitted or scored8.17%
- Brake pads wearing thin7.08%
- Tyre slightly damaged or cracking6.02%
- Suspension arm pin/bush showing wear4.39%
- Shock absorber light oil misting3.63%
Before you buy
What to check on a used Audi A3
- 1
Coil spring fractured or broken
A broken coil spring can leave the car sitting low or unstable, so it must be replaced before driving.
- 2
Tyre tread below 1.6mm
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
- 3
Brake pads worn below 1.5mm
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
- 4
CV joint boot split or insecure
A split CV boot lets dirt in and grease out, so the joint wears and may need full replacement.
- 5
Every MOT since new
Look for the faults above coming back year after year: it shows how the car has been looked after.
- 6
The mileage record
A typical Audi A3 covers about 9,100 miles a year. A big gap or a drop between MOTs is a warning sign.
- 7
Finance, stolen and write-off
The records the MOT can't show. A Full Check (£9.99) covers all three before you hand over any money.
Fuel types tested
- Diesel50.5%
- Petrol48.5%
- Hybrid0.9%
- Electric0%
- LPG0%
- Other0%
Most common colours
Black, Grey, White, Blue, Silver
Average engine size: 1.7 litres.
Compare
How the Audi A3 compares with its rivals
| Model | Fail rate | Against same-age cars |
|---|---|---|
| Audi A3 | 24.4% | 19% fewer MOT fails than the average car its age |
| BMW 1 Series | 23.1% | 19% fewer MOT fails than the average car its age |
| Volkswagen Golf | 25.8% | 16% fewer MOT fails than the average car its age |
| Mercedes-Benz A-Class | 20.6% | 9% fewer MOT fails than the average car its age |
| Honda Civic | 32.6% | 4% fewer MOT fails than the average car its age |
| Ford Focus | 31.8% | 3% more MOT fails than the average car its age |
| Vauxhall Astra | 34.5% | 6% more MOT fails than the average car its age |
Every family hatchback ranked in the family hatchback reliability index, or all Audi models.
Questions
Audi A3 questions, answered
Is the Audi A3 reliable?
On MOT results, the Audi A3 is better than average: it fails 24.4% of first MOT tests, 19% fewer MOT fails than the average car its age and mileage. It ranks 10 of 65 family hatchback models in our index.
What fails most on a Audi A3 MOT?
The most common MOT failures on the Audi A3 are coil spring fractured or broken (2.75% of tests), tyre tread below 1.6mm (2.52% of tests), brake pads worn below 1.5mm (1.56% of tests). By area, suspension fails 8.2% of its tests.
Which Audi A3 year is the most reliable?
Among years with 1,000+ tests, 2016 cars do best (35% fewer MOT fails than the average car its age) and 1998 cars do worst (13% more MOT fails than the average car its age).
How many miles does a Audi A3 do a year?
A typical Audi A3 covers about 9,100 miles a year, from the mileage recorded at its MOTs. Check the car you're looking at against that with a free mileage check.
How do I check a Audi A3 before I buy it?
Enter its registration for a free check of its MOT history, mileage, ULEZ status and tax. Before you pay, a Full Check (£9.99) shows outstanding finance, stolen and write-off records.
Source: DVSA anonymised MOT test results, 2022 to 2024, class 4 vehicles aged 3 to 25, normal tests only. How we compare like with like: our methodology.
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