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View all Audi A6 reviews
Parkers overall rating: 4.8 out of 5 4.8
  • Entry-level diesel is the best bet
  • All claim to reach at least 40mpg, but some seem ambitious
  • Plug-in hybrid model expected to follow later

Audi A6 Saloon: what will it cost to run?

Opt for the 40 TDI engine and fuel economy will range between 60.1-64.2mpg, depending on the model. The more luxurious 3.0-litre V6 50 TDI model has a claimed fuel economy of 49.6-50.4mpg, around what we’d expect given the performance on offer.

The V6-powered 55 TFSI petrol engine claims to achieve 40.4mpg, and while the 45 TFSI engine doesn't seem to achieve much more at 41.5 and 43.5mpg, we suspect the difference will be much larger; with the 55 TFSI struggling more to reach these claimed figures.

We do know that the A6 should have particularly strong resale values, though, based on how the old version performed, and you’ll find Audi’s servicing and maintenance costs on par with BMW and Mercedes-Benz.

Audi A6 Saloon: will it be eco-friendly?

The entry-level 40 TDI Sport is the cleanest engine in the range, emitting between 117-118g/km, while the Quattro version creeps up to 119g/km.

The V6-powered 50 TDI emits 145-146g/km, which is still less than the entry-level 45 TFSI petrol engine at 150-154g/km.

The 55 TFSI petrol engine is the biggest offender at 159-160g/km.

  • Loads of new tech on board
  • Some existing features known problematic
  • Headlight and digital dash in particular

Audi A6 Saloon: will it be reliable?

It remains to be seen just how dependable an A6 will be. There’s a fantastic amount of tech to go wrong, and for example our testers have experienced issues with the Virtual Cockpit and Matrix LED headlights on other models.

The previous model had a few recalls for issues such as fuel leaks and airbag faults, but these really shouldn’t be an issue on the new A6.

Estimated fuel cost per year

Fuel type Pence per litre Estimated cost per year *
Unleaded 128p £1,164 - £1,385 *
Diesel 131p £931 - £1,191 *

* The estimated fuel cost figure is based on an annual mileage of 10,000 miles and is a guide to how much this model will cost in fuel each year. It's calculated using the model's average MPG (calculated from both town centre and motorway driving) and the average fuel price from around the country. Actual fuel costs will vary based on driving style and road conditions.

Highest and lowest CO2 emissions

Engine CO2 emissions Road tax (12 months)
2.0 TDi (204ps) Diesel 116 g/km (Min) £465
3.0 TSFi (340ps) Petrol 163 g/km (Max) £465

Ongoing running costs

Road tax (12 months) £145 - £465
Insurance group 30 - 42
How much is it to insure?

Vehicle excise duty (VED) varies according to the CO2 emissions and the fuel type of the vehicle. For cars registered before 01 March 2001 it is based on engine size. For cars registered on or after 01 March 2001 the VED or road tax is based on the car's CO2 emissions.