In-depth reviews

Audi A6 saloon - MPG, running costs & CO2

The Audi A6 promises running costs that are competitive with executive rivals

Carbuyer Rating

4.3 out of 5

Owners Rating

4.0 out of 5

Read owner reviews
MPG, running costs & CO2 Rating

4.0 out of 5

Running costs are a big consideration in the executive class, and the latest A6 does much to appeal to private and business drivers alike, particularly since the plug-in hybrid finally arrived in late 2020. One virtue that's bound to appeal to both is that demand for the A6 is usually high, particularly for the smaller, more economically engined models in the range. The 2.0-litre engines will account for the lion's share of A6 sales and are likely to have the strongest residual values of all.

Audi A6 MPG & CO2

Fuel economy and emissions figures for the entry-level 2.0-litre '40 TDI' diesel engine are up to 52.3mpg, with a 141-148g/km CO2 emissions figure. This places it in a reasonable BiK band for the class, giving company-car drivers a significant saving over the top BiK band of the more powerful diesel.

The 3.0-litre V6 50 TDI engine returns in the region of 40mpg with CO2 emissions of around 180g/km. The 3.0-litre 55 TFSI petrol, meanwhile, is claimed to return up to 34.9mpg depending on trim and wheels, and emits from 185g/km of CO2.

Insurance

The Association of British Insurers, the body which assesses the risk of every new car on the market, has put the entry-level petrol A6 in group 35 out of 50. The 3.0-litre 50 TDI will sit in group 42, while the quick 55 TFSI Vorsprung is three groups higher.

Servicing

Servicing is made up of minor or major visits, either once yearly or on the basis of oil-quality sensors built into the engine – you can choose which method to follow when you buy your car.

Annual servicing is recommended for cars that cover fewer than 10,000 miles a year, or make frequent short journeys. If you spend much of your driving time on motorways and cover a higher annual mileage, two-year servicing will suit you. Audi also provides fixed-price service packages and will be able to discuss your requirements in person.

Warranty

Audi's standard UK warranty is a bit mean compared to those of BMW and Mercedes. You get three years/60,000 miles of cover, which pales against the unlimited-mileage warranties of rivals. You can extend it at extra cost, though, to five years/75,000 miles or five years/90,000 miles. Such warranties fail to impress, though, when Kia offers a seven-year/100,000-mile warranty as standard on all its cars.

Next Steps

Which Is Best?

Cheapest

  • Name
    40 TFSI Sport 4dr S Tronic
  • Gearbox type
    Semi-auto
  • Price
    £37,565

Most Economical

  • Name
    50 TFSI e 17.9kWh Quattro Sport 4dr S Tronic
  • Gearbox type
    Semi-auto
  • Price
    £52,925

Fastest

  • Name
    S6 TDI 349 Quattro 4dr Tip Auto
  • Gearbox type
    Semi-auto
  • Price
    £59,890

Most Popular

Car dashboard warning lights: the complete guide
Car dashboard symbols and meanings
Tips and advice
13 Apr 2021

Car dashboard warning lights: the complete guide

What are Audi TFSI petrol engines?
Yellow Audi Q2
Audi
16 Apr 2021

What are Audi TFSI petrol engines?

Best new car deals 2021
Skoda Fabia
Deals
16 Apr 2021

Best new car deals 2021

Tips & advice

View All
Car dashboard warning lights: the complete guide
Car dashboard symbols and meanings
Tips and advice
13 Apr 2021

Car dashboard warning lights: the complete guide

Electric car charging stations: a complete guide
Tips and advice
10 Nov 2020

Electric car charging stations: a complete guide

PCP vs HP – what's the difference?
Tips and Advice
23 Mar 2020

PCP vs HP – what's the difference?

Average speed cameras: how do they work?
Average speed cameras: how do they work?
Tips and advice
24 Feb 2021

Average speed cameras: how do they work?

Best cars

View All
Best car interiors
Best cars
10 Mar 2020

Best car interiors

Best electric cars
Best cars
24 Dec 2020

Best electric cars

Best cheap-to-run cars
Toyota Prius front 3/4 cornering
Best cars
1 Feb 2021

Best cheap-to-run cars

The UK's top 10 fastest hot hatchbacks
Hot hatches
9 Apr 2020

The UK's top 10 fastest hot hatchbacks