HowreliableUsed car reliability from every MOT
CarsAudi A3
MOT results · tests in 2025 · Great Britain

Audi A3 reliability: what the MOT shows

413,536 A3s had an MOT in 2025. 76.1% passed first time, against 70.0% for other cars of the same age and mileage. That is 6.1 points better than comparable cars. Those registered from 2022 onwards pass as often as other cars their age.

76.1%passed first time
+6.1points against cars of the same age and mileage
413,536MOTs in 2025
Report card

Audi A3 MOT results by registration year

Each dot compares how often A3s of that year failed on one area of the test with cars of the same age and mileage.

Much betterBetterAbout the sameWorseMuch worse
YearPassed first timeAgainst same age and mileageMOTsSuspensionSteeringBrakesTyresLights & electricsVisibilityBody & structureEmissions & leaks
200556.2%+0.86,052
200656.3%+1.49,681
200758.7%+3.312,120
200859.2%+4.016,149
200962.4%+6.520,055
201062.2%+4.822,996
201164.7%+5.420,441
201265.6%+4.324,819
201373.3%+9.526,943
201477.3%+10.238,535
201580.3%+9.641,447
201682.8%+8.838,661
201785.0%+7.433,694
201886.7%+6.126,914
201986.4%+3.220,848
202088.2%+2.215,748
202188.7%+1.620,638
202289.1%+0.717,795

Much worse: failed on that area at least 1.5 times as often. Worse: 1.15 to 1.5 times. Better: up to 0.87 times. Much better: two-thirds as often or less. Gaps under half a percentage point count as about the same. Registration year is the year the car was first used.

Audi A3 years to avoid, going by the MOT

Level2005 to 2006+0.8 to +1.4 ptsMost common failure in every one of these years: joints (constant velocity boot split or insecure, no longer prevents the ingress of dirt). 15,733 MOTs.
Ahead2007 to 2021+1.6 to +10.2 ptsMost common failures: joints (constant velocity boot split or insecure, no longer prevents the ingress of dirt) in 2007; coil spring (fractured or broken) in 2008, 2009, 2010, 2011, 2012, 2013 and 2014; tread depth below requirements of 1.6mm in 2015, 2016, 2017, 2018 and 2019; condition (has a cut in excess of the requirements deep enough to reach the ply or cords) in 2020 and 2021. 380,008 MOTs.
Level2022+0.7 ptsMost common failure: condition (has a cut in excess of the requirements deep enough to reach the ply or cords). 17,795 MOTs.

Well behind: 5 or more points below cars of the same age and mileage. Behind: 1.5 to 5 points below. Level: within 1.5 points. Ahead: 1.5 or more points above.

What fails

Audi A3 common faults at the MOT

7.3% of A3 MOTs failed on tyres, against 6.8% for cars of the same age and mileage, and 8.5% on suspension, against 10.3%.

Most common failures

Coil spring: fractured or broken3.2%Cars of the same age and mileage: 2.8%
Tread depth below requirements of 1.6mm2.6%Cars of the same age and mileage: 2.6%
Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt1.7%Cars of the same age and mileage: 0.9%
Condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.7%Cars of the same age and mileage: 1.4%
Condition: has ply or cords exposed1.7%Cars of the same age and mileage: 1.5%
Brake pads: less than 1.5 mm thick1.6%Cars of the same age and mileage: 2.0%
Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt1.5%Cars of the same age and mileage: 1.6%
Headlamp aim: projected beam image is obviously incorrect1.3%Cars of the same age and mileage: 1.4%
A3Same age and mileage

Fails more often than other cars

Suspension arm: corroded and seriously weakened2.3×0.33% of A3 MOTs (1,376) against 0.14% for cars of the same age and mileage
Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt1.9×1.70% of A3 MOTs (7,021) against 0.90% for cars of the same age and mileage
Ball joint dust cover no longer prevents the ingress of dirt1.6×0.59% of A3 MOTs (2,426) against 0.36% for cars of the same age and mileage
Condition: has a bulge, caused by separation or partial failure of its structure1.5×0.65% of A3 MOTs (2,697) against 0.44% for cars of the same age and mileage
SRS malfunction indicator lamp: warning lamp indicates a fault1.4×0.66% of A3 MOTs (2,712) against 0.48% for cars of the same age and mileage
Electronic stability control: warning lamp indicates a fault1.3×0.33% of A3 MOTs (1,364) against 0.25% for cars of the same age and mileage
Mileage

Pulls ahead after 30,000 miles

Up to 30,000 miles, A3s pass as often as cars of the same age and mileage. Ahead from there: 30–60,000 miles 5.7 points, 60–90,000 miles 8.0 points, 90–120,000 miles 7.9 points, 120,000+ miles 4.7 points.

First-time MOT pass rate by mileage: Audi A3 against cars of the same age and mileage0%25%50%75%100%9189UNDER 30K+1.9 pts868130–60K+5.7 pts787060–90K+8.0 pts706290–120K+7.9 pts6358120K++4.7 pts
A3, first-time pass rateCars of the same age and mileage

Petrol, diesel or hybrid A3

Diesels passed 70.5% first time, 6.3 points above comparable cars; petrols passed 80.5%, 6.2 points above comparable cars. Diesels had a median of 110,811 miles at the test, against 60,954 for petrols. Hybrids are mostly newer cars (median 42,656 miles), so compare them with care.

FuelMOTsPassed first timeSame age and mileageGap (pts)Median miles
Petrol211,84580.5%74.3%+6.260,954
Diesel188,73870.5%64.2%+6.3110,811
Hybrid12,95286.2%83.7%+2.542,656
Against rivals

A3 against other family hatchbacks

Cars registered 2014 to 2021, each against cars of the same age and mileage. The A3 ranks 2 of 15.

ModelMOTsPassed first timeSame age and mileageGap (pts)
1. VW Golf453,67584.7%77.2%+7.5
2. Audi A3236,48583.4%76.3%+7.1
3. Skoda Octavia130,34981.5%75.7%+5.8
4. Toyota Corolla55,58089.2%84.2%+5.1
5. Toyota Auris78,82278.5%73.7%+4.8
6. Honda Civic96,39382.2%77.5%+4.8
7. BMW 1 Series216,35981.6%77.1%+4.5
8. Seat Leon133,33279.6%77.2%+2.3
9. Mercedes A-Class285,89780.7%79.2%+1.6
10. Ford Focus433,95477.1%76.9%+0.2
11. Kia Ceed68,63375.8%76.8%−1.0
12. Vauxhall Astra259,77073.6%75.2%−1.6
13. Hyundai i3054,10873.1%75.3%−2.2
14. Nissan Leaf42,10878.9%81.7%−2.7
15. Peugeot 30869,56371.2%75.2%−4.0

Check these before you buy a used A3

What testers most often noted as advisories on A3s in 2025: wear that passed but was close to failing. Figures in brackets are for cars of the same age and mileage.

Questions about A3 reliability

Is the Audi A3 reliable?

At the MOT, 76.1% of 413,536 A3 MOTs in 2025 passed first time, against 70.0% for cars of the same age and mileage. 2005 to 2006: level (+0.8 to +1.4 points). 2007 to 2021: ahead (+1.6 to +10.2 points). 2022: level (+0.7 points).

Which Audi A3 years should I avoid?

None stand out: every registration year is within 1.5 points of cars of the same age and mileage, or ahead of them.

What is the most common MOT failure on a A3?

Coil spring: fractured or broken: 3.2% of A3 MOTs, against 2.8% for cars of the same age and mileage.

Is a diesel or petrol A3 more reliable?

Petrol A3s passed 80.5% first time and diesels 70.5%. Against cars of the same age and mileage, petrols were 6.2 points above and diesels 6.3 points above.

Is the A3 more reliable than the VW Golf?

For cars registered 2014 to 2021, the VW Golf passed 84.7% first time, +7.5 points against comparable cars. The A3 passed 83.4%, +7.1 points.

How we measure

Data. Every car MOT in Great Britain in 2025 (31,475,521 first tests on cars first used 2005 to 2022), from DVSA's anonymised MOT test data. Retests are left out.

Passed first time. A car passed if its first test that year ended in a pass. Cars that failed and were fixed within the hour count as fails, as DVSA counts them.

Same age and mileage. We group every car by the year it was first used and its mileage (under 30k, 30–60k, 60–90k, 90–120k, over 120k). The comparison figure is what those groups scored, weighted to match the A3's mix of ages and mileages.

Model. Every car DVSA records as a Audi A3: 79 recorded model names, from "A3" to trims such as "A3 S LINE 35 TFSI MHEV S-A".

The full method, including how each report-card dot and year group is decided.