Where each one leads
Audi A4 Avant
- Fewer Audi A4 Avant cars in the Netherlands carry an illogical odometer record (2.4% against 3.6%).
- Measured by the cars' own fuel meters, the petrol Audi A4 Avant uses 7.4 l/100 km on the road, the Mercedes-Benz A-Class 7.8.
Mercedes-Benz A-Class
- New Mercedes-Benz A-Class cars registered in Europe in 2022 average 106 g/km of CO₂ on the WLTP test, against 143 for the Audi A4 Avant in 2022.
- Measured by the cars' own fuel meters, the petrol hybrid Mercedes-Benz A-Class uses 7.4 l/100 km on the road, the Audi A4 Avant 7.8.
- Measured by the cars' own fuel meters, the diesel Mercedes-Benz A-Class uses 5.7 l/100 km on the road, the Audi A4 Avant 6.3.
Only measures that do not depend on how many cars were sold: pass and failure rates against cars of the same age, ratings, fuel use and CO₂. How we compare
At a glance
| Audi A4 Avant | Mercedes-Benz A-Class | |
|---|---|---|
| Model years in the US safety record | 2008–2012 | — |
| New cars registered in Europe | 693,328 (2010–2022) | 1,512,195 (2010–2022) |
| Licensed in the United Kingdom | — | 390,433 |
| On the road in the Netherlands | 22,328 | 72,849 |
| In traffic in Finland | 9,635 | 16,775 |
EEA new-car registrations (CC BY 4.0) · DVLA licensed vehicles (OGL v3.0) · RDW (CC0) · Traficom (CC BY 4.0) · generations: Wikidata (CC0).
Reliability and problems
| Audi A4 Avant | Mercedes-Benz A-Class | |
|---|---|---|
| UK MOT first-time pass rate | — | 76% |
| … against cars of the same age | — | +2% |
| New York safety inspections failed | — | 0.8% |
| … against cars of the same year | — | −29% |
| Illogical odometer records (NL) | 2.4% | 3.6% |
| US owner complaints | 60 | — |
| Most complaints about | Engine | — |
| Model year with most complaints | 2011 (32) | — |
| Manufacturer service bulletins | 1,244 | — |
Complaint, recall and bulletin counts grow with the number of cars sold and are not adjusted for it. UK MOT: DVSA anonymised MOT results (OGL v3.0); New York: DMV inspections; complaints, recalls, bulletins and investigations: NHTSA (public domain); odometer: RDW (CC0).
Safety
| Audi A4 Avant | Mercedes-Benz A-Class | |
|---|---|---|
| NHTSA overall rating | 4★ (2012) | — |
NHTSA New Car Assessment Program, most recent rated model year (public domain).
Fuel, emissions and price
| Audi A4 Avant | Mercedes-Benz A-Class | |
|---|---|---|
| Official combined fuel use, Canada | 10.0 l/100 km (2012) | — |
| Real-world use in Europe, diesel hybrid | 6.2 l/100 km | — |
| Real-world use in Europe, petrol hybrid | 7.8 l/100 km | 7.4 l/100 km |
| Real-world use in Europe, petrol | 7.4 l/100 km | 7.8 l/100 km |
| Real-world use in Europe, diesel | 6.3 l/100 km | 5.7 l/100 km |
| Official CO₂ of new cars in Europe | 143 g/km | 106 g/km |
| Average power of new cars in Europe | 131 kW (175 hp) | 112 kW (151 hp) |
| Average mass in running order | 1,631 kg | 1,509 kg |
| Dutch list price when new (median) | €53,468 | €37,030 |
| Average odometer in Finland | 194,000 km | 131,000 km |
Canada: NRCan Fuel Consumption Ratings, most frugal version of the latest year (OGL Canada). Europe: EEA monitoring of new-car CO₂ and on-board fuel meters (OBFCM), CC BY 4.0. Price: RDW catalogue price (CC0). Finland: Traficom (CC BY 4.0).