Used Audi A3 8V Sportback (2012–20) vs Mercedes-Benz A-Class W176 (2012–18)
Figures updated
Shopping for a used family hatchback? We compare the Audi A3 8V Sportback (2012–2020) and Mercedes-Benz A-Class W176 (2012–2018), which were on sale at the same time, on size, boot space, performance, safety and running costs, plus how cars of their age do in real MOT tests.
The short answer
The Audi A3 8V Sportback comes out ahead, with the better MOT record; the Mercedes-Benz A-Class W176 is close on everything else.
- The Audi A3 8V Sportback has the better MOT record for its age: the Audi A3 8V Sportback fails its MOT 23% less often than average for its age (20% of Audi A3s built 2012–2020 failed first time in 2024, against 26% of all cars that age), while the Mercedes-Benz A-Class W176 fails its MOT 5% less often than average for its age (24% of Mercedes-Benz A-Classes built 2012–2018 failed first time in 2024, against 25% of all cars that age).
- Watch the seat belts and airbags on a Mercedes-Benz A-Class W176: it fails on them 2.7 times as often as the average car.
| Figure | Audi A3 8V Sportback8V Sportback (2012–2020), 5-door hatchback | Mercedes-Benz A-Class W176W176 (2012–2018), 5-door hatchback |
|---|---|---|
| Price and practicality | ||
| Body | 5-door hatchback | 5-door hatchback |
| Seats | 5 | – |
| BootSeats up / folded | 380 litres / 1,220 | – |
| Length | 4,313mm | 4,292mm |
| WidthWithout mirrors | 1,785mm | 1,780mm |
| Height | 1,426mm | – |
| Performance | ||
| Power | 105–310 PS | – |
| 0–62mph | 4.6–11.2 sec | – |
| Safety | ||
| Euro NCAP ratingTests get tougher each year | ★★★★★ (2012) | ★★★★★ (2012) |
| Economy and emissions | ||
| Fuel types | Diesel | – |
| Official economyVersions of this generation | 55.4–72.4 mpg | – |
| CO2 | 103–133 g/km | – |
| Running costs at 7,500 miles a year | ||
| Diesel198.4p a litre | £1,030 (65.7 mpg) | – |
| Cheapest version to fuelWhichever fuel costs least | £1,030 (diesel) | – |
| Car tax, registered 2001 to 2017Taxed on CO2; newer cars pay a flat £200 | £20 to £790 | – |
| Reliability from real MOT tests | ||
| Reliability score | 124Well above average (best) | 108Above average |
| Failed first time, cars of this generation's ageUK rate for cars the same age in brackets | 19.7% (25.6%)built 2012–2020 (best) | 23.5% (24.8%)built 2012–2018 |
| Failed MOT first time (ages 3–20) | 24.9% | 21.4% (best) |
| Failed at 3 years old | 10.7% | 10.2% (best) |
| Failed at 5 years old | 12.3% (best) | 15.0% |
| Failed at 10 years old | 23.6% (best) | 29.7% |
| Most common MOT fault | Tread depth (2.9% of tests) | Tread depth (2.4% of tests) |
| Fails more than average on | Nothing stands out | Seat belts and airbags (2.7×) |
| MOT tests analysed | 410,672 | 341,498 |
| About the cars | ||
| Type | Family hatchback | Family hatchback |
| Owners' average miles a year | 8,900 | 8,500 |
| On sale | 2012–2020 | 2012–2018 |
Green marks the better figure where the difference is more than 3%. Reliability figures cover every version of each model tested in the year. Running costs use the typical official economy of recent versions (WLTP where available); real-world economy is usually a little worse for every car.
More comparisons
- Ford Focus Mk3 vs Audi A3 8V Sportback
- Volkswagen Golf Mk7 vs Audi A3 8V Sportback
- Vauxhall Astra K vs Audi A3 8V Sportback
- Audi A3 8V Sportback vs BMW 1 Series F20
- Ford Focus Mk3 vs Mercedes-Benz A-Class W176
- Volkswagen Golf Mk7 vs Mercedes-Benz A-Class W176
- Vauxhall Astra K vs Mercedes-Benz A-Class W176
- BMW 1 Series F20 vs Mercedes-Benz A-Class W176
Frequently asked questions
›Is a used Audi A3 8V Sportback or Mercedes-Benz A-Class W176 more reliable?
The Audi A3 8V Sportback. Compared with all cars the same age, the Audi A3 8V Sportback fails its MOT 23% less often than average and the Mercedes-Benz A-Class W176 5% less often than average (DVSA MOT tests, 2024). Because they're different ages, their raw rates differ: 19.7% of Audi A3s built 2012–2020 failed first time, and 23.5% of Mercedes-Benz A-Classes built 2012–2018. Whatever you buy, check the MOT history of the exact car.
›Which is bigger, the Audi A3 8V Sportback or the Mercedes-Benz A-Class W176?
The Audi A3 8V Sportback is 21mm longer (4,313mm against 4,292mm).
›Which is safer, the Audi A3 8V Sportback or the Mercedes-Benz A-Class W176?
Euro NCAP gave the Audi A3 8V Sportback 5 stars (2012) and the Mercedes-Benz A-Class W176 5 stars (2012). Euro NCAP makes its tests tougher every few years, so ratings from different years aren't directly comparable.
›Should I buy the Audi A3 8V Sportback or the Mercedes-Benz A-Class W176?
The Audi A3 8V Sportback comes out ahead, with the better MOT record; the Mercedes-Benz A-Class W176 is close on everything else. The comparison above sets out price, space, performance, safety, running costs and reliability side by side.
Sources: manufacturers' UK specifications and price lists and Euro NCAP (listed on each model's page); DVSA anonymised MOT tests 2024 (Open Government Licence v3.0); Vehicle Certification Agency car fuel data, © Crown copyright, VCA cannot accept liability for its accuracy; fuel prices from the GOV.UK Fuel Finder scheme. Photos from Wikimedia Commons, credited under each picture.